Pick your travel month to compare average rain and temperatures across 17 places, from the official 1991–2020 climate normals. These are long-term averages, not a forecast.
Compare places for a month
Sorted by fewest rainy days, then least rain.
Average weather in January, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Khon KaenNortheast
30.8 / 18.1
6
0.8
KanchanaburiCentral
33.0 / 20.4
8
0.8
Udon ThaniNortheast
30.3 / 16.7
6
0.9
PhitsanulokNorthClosest station to Sukhothai Historical Park
31.5 / 19.2
7
1.0
Mae Hong SonNorthClosest station to Pai
29.8 / 14.5
11
1.0
Chiang MaiNorth
30.0 / 15.7
11
1.0
Hua HinGulf of Thailand coast
29.9 / 22.8
25
1.3
Chiang RaiNorth
28.6 / 13.8
17
1.5
PattayaEast coast
30.6 / 23.5
16
1.6
BangkokCentral
32.7 / 23.4
24
1.9
RayongEast coastClosest station to Ko Samet
31.9 / 22.2
29
2.2
Ko Lanta (Krabi)Andaman coast
32.6 / 24.1
31
2.6
TratEast coast
31.9 / 22.2
51
3.5
Khao Lak (Takua Pa)Andaman coast
32.6 / 22.1
62
4.9
Phuket (airport)Andaman coast
32.1 / 22.9
66
5.1
Hat Yai (airport)Deep south
31.2 / 22.3
88
6.2
Ko SamuiGulf of Thailand coast
29.0 / 24.2
127
8.5
Average weather in February, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Mae Hong SonNorthClosest station to Pai
33.3 / 14.7
6
0.5
Chiang MaiNorth
32.9 / 16.8
10
0.7
Hua HinGulf of Thailand coast
31.1 / 23.6
14
0.8
KanchanaburiCentral
35.3 / 22.1
18
1.1
Chiang RaiNorth
31.3 / 14.5
13
1.2
PhitsanulokNorthClosest station to Sukhothai Historical Park
33.5 / 20.8
17
1.3
Khon KaenNortheast
32.8 / 20.0
17
1.6
PattayaEast coast
31.2 / 24.5
20
1.8
Ko Lanta (Krabi)Andaman coast
33.5 / 24.4
24
1.8
Udon ThaniNortheast
32.7 / 18.6
21
1.9
BangkokCentral
33.7 / 24.8
21
1.9
RayongEast coastClosest station to Ko Samet
32.4 / 24.5
32
2.6
Hat Yai (airport)Deep south
32.7 / 22.0
30
2.8
Phuket (airport)Andaman coast
33.2 / 23.1
32
3.1
Khao Lak (Takua Pa)Andaman coast
33.2 / 22.3
45
4.1
Ko SamuiGulf of Thailand coast
29.4 / 24.9
64
4.3
TratEast coast
32.0 / 22.9
82
5.6
Average weather in March, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Mae Hong SonNorthClosest station to Pai
36.9 / 18.2
19
1.4
Chiang MaiNorth
35.4 / 20.1
20
2.1
Hua HinGulf of Thailand coast
32.3 / 24.9
51
2.2
PhitsanulokNorthClosest station to Sukhothai Historical Park
35.7 / 23.7
29
2.4
KanchanaburiCentral
37.0 / 24.3
39
2.6
Chiang RaiNorth
33.7 / 17.5
35
2.9
Khon KaenNortheast
35.2 / 23.0
38
3.3
PattayaEast coast
32.0 / 25.5
47
3.3
BangkokCentral
34.7 / 26.4
51
3.4
Udon ThaniNortheast
35.2 / 22.0
50
3.7
RayongEast coastClosest station to Ko Samet
33.0 / 26.4
71
4.0
Ko SamuiGulf of Thailand coast
30.4 / 25.4
116
4.7
Ko Lanta (Krabi)Andaman coast
33.9 / 24.7
69
4.8
Hat Yai (airport)Deep south
34.2 / 22.7
77
5.0
Phuket (airport)Andaman coast
33.6 / 23.7
117
6.5
Khao Lak (Takua Pa)Andaman coast
33.6 / 23.3
145
8.6
TratEast coast
32.6 / 24.2
140
9.6
Average weather in April, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Hua HinGulf of Thailand coast
33.4 / 26.0
47
2.7
PhitsanulokNorthClosest station to Sukhothai Historical Park
37.2 / 25.4
59
3.8
KanchanaburiCentral
38.0 / 25.6
66
4.2
Mae Hong SonNorthClosest station to Pai
38.9 / 22.9
60
4.3
Chiang MaiNorth
36.7 / 23.4
54
4.7
PattayaEast coast
33.0 / 26.4
68
5.0
Udon ThaniNortheast
36.5 / 24.4
73
5.2
RayongEast coastClosest station to Ko Samet
34.0 / 27.3
85
5.2
BangkokCentral
35.7 / 27.2
93
5.4
Khon KaenNortheast
36.2 / 24.8
95
5.9
Ko SamuiGulf of Thailand coast
31.8 / 26.0
83
6.1
Chiang RaiNorth
34.7 / 21.1
93
7.9
Hat Yai (airport)Deep south
34.7 / 23.7
116
8.7
Ko Lanta (Krabi)Andaman coast
33.8 / 25.1
122
9.0
Phuket (airport)Andaman coast
33.5 / 24.2
144
10.4
TratEast coast
33.3 / 24.7
196
11.7
Khao Lak (Takua Pa)Andaman coast
33.7 / 24.3
222
13.6
Average weather in May, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Hua HinGulf of Thailand coast
33.7 / 26.3
96
8.5
PattayaEast coast
32.7 / 26.6
121
9.0
PhitsanulokNorthClosest station to Sukhothai Historical Park
35.8 / 25.4
166
10.0
KanchanaburiCentral
36.3 / 25.7
139
10.1
RayongEast coastClosest station to Ko Samet
33.5 / 27.3
191
10.8
Ko SamuiGulf of Thailand coast
32.9 / 25.7
132
11.0
Hat Yai (airport)Deep south
34.1 / 24.1
129
11.1
Khon KaenNortheast
34.9 / 25.1
155
11.2
Chiang MaiNorth
34.7 / 24.2
168
12.0
BangkokCentral
35.1 / 26.9
217
12.4
Udon ThaniNortheast
35.0 / 25.0
188
12.9
Mae Hong SonNorthClosest station to Pai
36.3 / 23.9
169
13.6
Ko Lanta (Krabi)Andaman coast
32.6 / 25.4
228
14.2
Chiang RaiNorth
33.5 / 23.0
227
14.5
Phuket (airport)Andaman coast
32.4 / 24.6
278
16.6
TratEast coast
32.8 / 24.8
420
18.8
Khao Lak (Takua Pa)Andaman coast
32.6 / 24.7
431
20.2
Average weather in June, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Hua HinGulf of Thailand coast
33.4 / 26.1
82
9.2
Hat Yai (airport)Deep south
33.5 / 23.9
121
9.8
PattayaEast coast
32.0 / 26.4
132
9.8
KanchanaburiCentral
34.8 / 25.3
99
10.0
Ko SamuiGulf of Thailand coast
32.7 / 25.3
134
10.3
Khon KaenNortheast
34.0 / 25.1
146
10.4
Chiang MaiNorth
33.2 / 24.5
118
11.6
PhitsanulokNorthClosest station to Sukhothai Historical Park
34.3 / 25.2
161
11.9
RayongEast coastClosest station to Ko Samet
32.7 / 27.0
178
12.0
BangkokCentral
34.1 / 26.4
199
13.4
Chiang RaiNorth
32.5 / 24.0
186
14.6
Udon ThaniNortheast
33.6 / 25.1
219
14.7
Ko Lanta (Krabi)Andaman coast
31.9 / 25.3
286
15.1
Phuket (airport)Andaman coast
31.8 / 24.6
314
16.0
Mae Hong SonNorthClosest station to Pai
33.6 / 24.0
180
17.0
Khao Lak (Takua Pa)Andaman coast
31.9 / 24.6
457
18.9
TratEast coast
31.5 / 24.3
777
23.3
Average weather in July, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
PattayaEast coast
31.6 / 26.2
104
9.5
Hua HinGulf of Thailand coast
33.0 / 25.7
90
9.7
Hat Yai (airport)Deep south
33.3 / 23.6
101
10.4
KanchanaburiCentral
33.9 / 24.9
106
10.6
Ko SamuiGulf of Thailand coast
32.3 / 25.1
117
10.7
RayongEast coastClosest station to Ko Samet
32.2 / 26.8
177
11.0
Khon KaenNortheast
33.0 / 24.6
178
12.4
BangkokCentral
33.5 / 26.1
190
14.1
Chiang MaiNorth
32.1 / 24.3
149
14.4
PhitsanulokNorthClosest station to Sukhothai Historical Park
33.2 / 24.8
188
14.4
Ko Lanta (Krabi)Andaman coast
31.6 / 25.1
289
14.9
Udon ThaniNortheast
32.8 / 25.0
225
16.1
Phuket (airport)Andaman coast
31.5 / 24.6
260
16.2
Chiang RaiNorth
31.3 / 23.9
318
19.6
Khao Lak (Takua Pa)Andaman coast
31.5 / 24.6
466
19.7
Mae Hong SonNorthClosest station to Pai
32.4 / 23.7
226
20.4
TratEast coast
30.7 / 24.0
1,024
24.6
Average weather in August, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
PattayaEast coast
31.4 / 26.1
91
9.1
Hua HinGulf of Thailand coast
32.9 / 25.6
67
9.7
RayongEast coastClosest station to Ko Samet
32.0 / 26.6
128
9.8
Ko SamuiGulf of Thailand coast
32.4 / 25.1
102
10.5
Hat Yai (airport)Deep south
33.2 / 23.5
124
10.9
KanchanaburiCentral
33.8 / 24.8
101
11.0
Khon KaenNortheast
32.4 / 24.3
222
14.4
Ko Lanta (Krabi)Andaman coast
31.2 / 25.2
342
14.8
BangkokCentral
33.3 / 25.9
227
15.6
PhitsanulokNorthClosest station to Sukhothai Historical Park
32.6 / 24.7
241
15.6
Chiang MaiNorth
31.6 / 24.0
223
17.1
Phuket (airport)Andaman coast
31.3 / 24.7
378
17.4
Udon ThaniNortheast
32.2 / 24.6
299
18.1
Chiang RaiNorth
30.9 / 23.7
373
20.5
Khao Lak (Takua Pa)Andaman coast
31.3 / 24.5
570
20.5
Mae Hong SonNorthClosest station to Pai
32.1 / 23.5
259
20.7
TratEast coast
30.7 / 24.1
970
24.6
Average weather in September, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Ko SamuiGulf of Thailand coast
31.9 / 24.8
118
10.6
Hua HinGulf of Thailand coast
32.3 / 25.3
130
10.6
Hat Yai (airport)Deep south
32.7 / 23.5
147
12.7
PattayaEast coast
31.1 / 25.4
214
13.2
KanchanaburiCentral
33.7 / 24.5
219
13.8
Udon ThaniNortheast
32.2 / 24.3
250
14.2
RayongEast coastClosest station to Ko Samet
31.8 / 25.7
269
14.6
Chiang MaiNorth
32.0 / 23.7
207
14.7
Chiang RaiNorth
31.4 / 23.1
275
14.7
Khon KaenNortheast
32.0 / 24.1
246
15.1
PhitsanulokNorthClosest station to Sukhothai Historical Park
32.7 / 24.7
268
15.2
Mae Hong SonNorthClosest station to Pai
32.9 / 23.3
201
15.5
Ko Lanta (Krabi)Andaman coast
30.9 / 24.8
319
17.0
BangkokCentral
33.2 / 25.4
336
18.0
Phuket (airport)Andaman coast
30.9 / 24.1
399
19.2
Khao Lak (Takua Pa)Andaman coast
30.9 / 23.9
636
22.5
TratEast coast
30.9 / 23.8
816
22.5
Average weather in October, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Udon ThaniNortheast
32.0 / 22.9
94
6.1
Khon KaenNortheast
31.8 / 22.9
102
6.8
Chiang RaiNorth
30.9 / 21.5
124
8.3
Chiang MaiNorth
31.7 / 22.6
124
9.1
PhitsanulokNorthClosest station to Sukhothai Historical Park
32.6 / 24.1
139
9.4
Mae Hong SonNorthClosest station to Pai
32.7 / 22.2
117
10.0
KanchanaburiCentral
32.4 / 23.7
206
12.0
Hua HinGulf of Thailand coast
31.0 / 24.8
250
12.7
RayongEast coastClosest station to Ko Samet
32.3 / 24.7
196
13.3
PattayaEast coast
30.9 / 24.7
225
14.4
BangkokCentral
33.0 / 25.2
289
14.4
Ko SamuiGulf of Thailand coast
30.6 / 24.3
295
15.8
Hat Yai (airport)Deep south
32.0 / 23.4
224
16.8
TratEast coast
31.8 / 23.6
338
17.4
Ko Lanta (Krabi)Andaman coast
31.0 / 24.5
298
17.9
Phuket (airport)Andaman coast
31.0 / 23.7
371
19.9
Khao Lak (Takua Pa)Andaman coast
31.1 / 23.5
529
21.6
Average weather in November, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Udon ThaniNortheast
31.4 / 20.0
14
1.2
Khon KaenNortheast
31.6 / 20.7
22
1.6
PhitsanulokNorthClosest station to Sukhothai Historical Park
32.3 / 22.0
32
2.2
Chiang MaiNorth
30.8 / 19.9
41
3.0
Mae Hong SonNorthClosest station to Pai
31.0 / 19.4
40
3.4
KanchanaburiCentral
32.1 / 22.3
45
3.5
Chiang RaiNorth
29.6 / 17.9
45
3.5
BangkokCentral
33.1 / 24.7
45
3.8
PattayaEast coast
30.8 / 24.3
57
4.0
RayongEast coastClosest station to Ko Samet
32.8 / 23.7
44
4.2
Hua HinGulf of Thailand coast
30.6 / 24.5
73
4.2
TratEast coast
32.6 / 23.5
85
6.8
Ko Lanta (Krabi)Andaman coast
31.3 / 24.3
148
12.3
Khao Lak (Takua Pa)Andaman coast
31.8 / 23.2
232
13.8
Phuket (airport)Andaman coast
31.4 / 23.5
219
14.2
Ko SamuiGulf of Thailand coast
29.7 / 24.1
445
16.5
Hat Yai (airport)Deep south
30.7 / 23.4
324
18.3
Average weather in December, 1991–2020
Place
High / low (°C)
Rain (mm)
Rainy days
Khon KaenNortheast
30.3 / 18.2
5
0.5
Udon ThaniNortheast
29.5 / 16.7
6
0.5
PhitsanulokNorthClosest station to Sukhothai Historical Park
31.0 / 19.4
13
0.7
KanchanaburiCentral
31.7 / 20.3
7
0.8
BangkokCentral
32.3 / 23.2
12
1.0
RayongEast coastClosest station to Ko Samet
32.2 / 22.1
8
1.1
Mae Hong SonNorthClosest station to Pai
28.8 / 16.2
11
1.2
Chiang MaiNorth
29.2 / 16.9
14
1.2
Hua HinGulf of Thailand coast
29.8 / 23.3
12
1.3
PattayaEast coast
30.2 / 23.3
12
1.5
Chiang RaiNorth
27.8 / 14.7
21
1.9
TratEast coast
32.2 / 22.6
28
2.4
Khao Lak (Takua Pa)Andaman coast
31.9 / 22.7
78
6.9
Phuket (airport)Andaman coast
31.3 / 23.1
86
7.7
Ko Lanta (Krabi)Andaman coast
31.4 / 23.9
65
7.8
Ko SamuiGulf of Thailand coast
29.3 / 24.0
263
11.6
Hat Yai (airport)Deep south
30.1 / 22.9
275
15.2
Month by month for each place
Open a place to see all twelve months.
Bangkok Central
Driest months: January, February, December.
Wettest months: August, September, October.
Hottest month (by average high): April.
Average rain per year: 1,702 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
32.7 / 23.4
24
1.9
Feb
33.7 / 24.8
21
1.9
Mar
34.7 / 26.4
51
3.4
Apr
35.7 / 27.2
93
5.4
May
35.1 / 26.9
217
12.4
Jun
34.1 / 26.4
199
13.4
Jul
33.5 / 26.1
190
14.1
Aug
33.3 / 25.9
227
15.6
Sep
33.2 / 25.4
336
18.0
Oct
33.0 / 25.2
289
14.4
Nov
33.1 / 24.7
45
3.8
Dec
32.3 / 23.2
12
1.0
Weather station: BANGKOK METROPOLIS (WMO 48455); at least 30 years of data.
Kanchanaburi Central
Driest months: January, February, December.
Wettest months: May, September, October.
Hottest month (by average high): April.
Average rain per year: 1,054 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
33.0 / 20.4
8
0.8
Feb
35.3 / 22.1
18
1.1
Mar
37.0 / 24.3
39
2.6
Apr
38.0 / 25.6
66
4.2
May
36.3 / 25.7
139
10.1
Jun
34.8 / 25.3
99
10.0
Jul
33.9 / 24.9
106
10.6
Aug
33.8 / 24.8
101
11.0
Sep
33.7 / 24.5
219
13.8
Oct
32.4 / 23.7
206
12.0
Nov
32.1 / 22.3
45
3.5
Dec
31.7 / 20.3
7
0.8
Weather station: KANCHANA BURI (WMO 48450); at least 29 years of data.
Chiang Mai North
Driest months: January, February, December.
Wettest months: May, August, September.
Hottest month (by average high): April.
Average rain per year: 1,139 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
30.0 / 15.7
11
1.0
Feb
32.9 / 16.8
10
0.7
Mar
35.4 / 20.1
20
2.1
Apr
36.7 / 23.4
54
4.7
May
34.7 / 24.2
168
12.0
Jun
33.2 / 24.5
118
11.6
Jul
32.1 / 24.3
149
14.4
Aug
31.6 / 24.0
223
17.1
Sep
32.0 / 23.7
207
14.7
Oct
31.7 / 22.6
124
9.1
Nov
30.8 / 19.9
41
3.0
Dec
29.2 / 16.9
14
1.2
Weather station: CHIANG MAI (WMO 48327); at least 30 years of data.
Chiang Rai North
Driest months: January, February, December.
Wettest months: July, August, September.
Hottest month (by average high): April.
Average rain per year: 1,723 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
28.6 / 13.8
17
1.5
Feb
31.3 / 14.5
13
1.2
Mar
33.7 / 17.5
35
2.9
Apr
34.7 / 21.1
93
7.9
May
33.5 / 23.0
227
14.5
Jun
32.5 / 24.0
186
14.6
Jul
31.3 / 23.9
318
19.6
Aug
30.9 / 23.7
373
20.5
Sep
31.4 / 23.1
275
14.7
Oct
30.9 / 21.5
124
8.3
Nov
29.6 / 17.9
45
3.5
Dec
27.8 / 14.7
21
1.9
Weather station: CHIANG RAI (WMO 48303); at least 30 years of data.
Mae Hong Son North
Driest months: January, February, December.
Wettest months: July, August, September.
Hottest month (by average high): April.
Average rain per year: 1,297 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
29.8 / 14.5
11
1.0
Feb
33.3 / 14.7
6
0.5
Mar
36.9 / 18.2
19
1.4
Apr
38.9 / 22.9
60
4.3
May
36.3 / 23.9
169
13.6
Jun
33.6 / 24.0
180
17.0
Jul
32.4 / 23.7
226
20.4
Aug
32.1 / 23.5
259
20.7
Sep
32.9 / 23.3
201
15.5
Oct
32.7 / 22.2
117
10.0
Nov
31.0 / 19.4
40
3.4
Dec
28.8 / 16.2
11
1.2
Closest station to Pai in this data set (about 50 km in a straight line). Weather there can differ.
Weather station: MAE HONG SON (WMO 48300); at least 28 years of data.
Phitsanulok North
Driest months: January, February, December.
Wettest months: July, August, September.
Hottest month (by average high): April.
Average rain per year: 1,319 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
31.5 / 19.2
7
1.0
Feb
33.5 / 20.8
17
1.3
Mar
35.7 / 23.7
29
2.4
Apr
37.2 / 25.4
59
3.8
May
35.8 / 25.4
166
10.0
Jun
34.3 / 25.2
161
11.9
Jul
33.2 / 24.8
188
14.4
Aug
32.6 / 24.7
241
15.6
Sep
32.7 / 24.7
268
15.2
Oct
32.6 / 24.1
139
9.4
Nov
32.3 / 22.0
32
2.2
Dec
31.0 / 19.4
13
0.7
Closest station to Sukhothai Historical Park in this data set (about 55 km in a straight line). Weather there can differ.
Weather station: PHITSANULOK (WMO 48378); at least 29 years of data.
Khon Kaen Northeast
Driest months: January, February, December.
Wettest months: July, August, September.
Hottest month (by average high): April.
Average rain per year: 1,231 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
30.8 / 18.1
6
0.8
Feb
32.8 / 20.0
17
1.6
Mar
35.2 / 23.0
38
3.3
Apr
36.2 / 24.8
95
5.9
May
34.9 / 25.1
155
11.2
Jun
34.0 / 25.1
146
10.4
Jul
33.0 / 24.6
178
12.4
Aug
32.4 / 24.3
222
14.4
Sep
32.0 / 24.1
246
15.1
Oct
31.8 / 22.9
102
6.8
Nov
31.6 / 20.7
22
1.6
Dec
30.3 / 18.2
5
0.5
Weather station: KHON KAEN (WMO 48381); at least 29 years of data.
Udon Thani Northeast
Driest months: January, November, December.
Wettest months: July, August, September.
Hottest month (by average high): April.
Average rain per year: 1,445 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
30.3 / 16.7
6
0.9
Feb
32.7 / 18.6
21
1.9
Mar
35.2 / 22.0
50
3.7
Apr
36.5 / 24.4
73
5.2
May
35.0 / 25.0
188
12.9
Jun
33.6 / 25.1
219
14.7
Jul
32.8 / 25.0
225
16.1
Aug
32.2 / 24.6
299
18.1
Sep
32.2 / 24.3
250
14.2
Oct
32.0 / 22.9
94
6.1
Nov
31.4 / 20.0
14
1.2
Dec
29.5 / 16.7
6
0.5
Weather station: UDON THANI (WMO 48354); at least 29 years of data.
Pattaya East coast
Driest months: January, February, December.
Wettest months: June, September, October.
Hottest month (by average high): April.
Average rain per year: 1,106 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
30.6 / 23.5
16
1.6
Feb
31.2 / 24.5
20
1.8
Mar
32.0 / 25.5
47
3.3
Apr
33.0 / 26.4
68
5.0
May
32.7 / 26.6
121
9.0
Jun
32.0 / 26.4
132
9.8
Jul
31.6 / 26.2
104
9.5
Aug
31.4 / 26.1
91
9.1
Sep
31.1 / 25.4
214
13.2
Oct
30.9 / 24.7
225
14.4
Nov
30.8 / 24.3
57
4.0
Dec
30.2 / 23.3
12
1.5
Weather station: PHATTHAYA (WMO 48461); at least 28 years of data.
Rayong East coast
Driest months: January, February, December.
Wettest months: May, September, October.
Hottest month (by average high): April.
Average rain per year: 1,407 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
31.9 / 22.2
29
2.2
Feb
32.4 / 24.5
32
2.6
Mar
33.0 / 26.4
71
4.0
Apr
34.0 / 27.3
85
5.2
May
33.5 / 27.3
191
10.8
Jun
32.7 / 27.0
178
12.0
Jul
32.2 / 26.8
177
11.0
Aug
32.0 / 26.6
128
9.8
Sep
31.8 / 25.7
269
14.6
Oct
32.3 / 24.7
196
13.3
Nov
32.8 / 23.7
44
4.2
Dec
32.2 / 22.1
8
1.1
Closest station to Ko Samet in this data set (about 15 km in a straight line). Weather there can differ.
Weather station: RAYONG (WMO 48478); at least 30 years of data.
Trat East coast
Driest months: January, February, December.
Wettest months: July, August, September.
Hottest month (by average high): April.
Average rain per year: 4,927 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
31.9 / 22.2
51
3.5
Feb
32.0 / 22.9
82
5.6
Mar
32.6 / 24.2
140
9.6
Apr
33.3 / 24.7
196
11.7
May
32.8 / 24.8
420
18.8
Jun
31.5 / 24.3
777
23.3
Jul
30.7 / 24.0
1,024
24.6
Aug
30.7 / 24.1
970
24.6
Sep
30.9 / 23.8
816
22.5
Oct
31.8 / 23.6
338
17.4
Nov
32.6 / 23.5
85
6.8
Dec
32.2 / 22.6
28
2.4
Weather station: TRAD (WMO 48501); at least 29 years of data.
Hua Hin Gulf of Thailand coast
Driest months: January, February, December.
Wettest months: May, September, October.
Hottest month (by average high): May.
Average rain per year: 936 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
29.9 / 22.8
25
1.3
Feb
31.1 / 23.6
14
0.8
Mar
32.3 / 24.9
51
2.2
Apr
33.4 / 26.0
47
2.7
May
33.7 / 26.3
96
8.5
Jun
33.4 / 26.1
82
9.2
Jul
33.0 / 25.7
90
9.7
Aug
32.9 / 25.6
67
9.7
Sep
32.3 / 25.3
130
10.6
Oct
31.0 / 24.8
250
12.7
Nov
30.6 / 24.5
73
4.2
Dec
29.8 / 23.3
12
1.3
Weather station: HUA HIN (WMO 48475); at least 30 years of data.
Ko Samui Gulf of Thailand coast
Driest months: February, April, August.
Wettest months: October, November, December.
Hottest month (by average high): May.
Average rain per year: 1,994 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
29.0 / 24.2
127
8.5
Feb
29.4 / 24.9
64
4.3
Mar
30.4 / 25.4
116
4.7
Apr
31.8 / 26.0
83
6.1
May
32.9 / 25.7
132
11.0
Jun
32.7 / 25.3
134
10.3
Jul
32.3 / 25.1
117
10.7
Aug
32.4 / 25.1
102
10.5
Sep
31.9 / 24.8
118
10.6
Oct
30.6 / 24.3
295
15.8
Nov
29.7 / 24.1
445
16.5
Dec
29.3 / 24.0
263
11.6
Weather station: KO SAMUI (WMO 48550); at least 30 years of data.
Hat Yai (airport) Deep south
Driest months: January, February, March.
Wettest months: October, November, December.
Hottest month (by average high): April.
Average rain per year: 1,756 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
31.2 / 22.3
88
6.2
Feb
32.7 / 22.0
30
2.8
Mar
34.2 / 22.7
77
5.0
Apr
34.7 / 23.7
116
8.7
May
34.1 / 24.1
129
11.1
Jun
33.5 / 23.9
121
9.8
Jul
33.3 / 23.6
101
10.4
Aug
33.2 / 23.5
124
10.9
Sep
32.7 / 23.5
147
12.7
Oct
32.0 / 23.4
224
16.8
Nov
30.7 / 23.4
324
18.3
Dec
30.1 / 22.9
275
15.2
Weather station: HAT YAI AIRPORT (WMO 48569); at least 30 years of data.
Phuket (airport) Andaman coast
Driest months: January, February, December.
Wettest months: August, September, October.
Hottest month (by average high): March.
Average rain per year: 2,664 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
32.1 / 22.9
66
5.1
Feb
33.2 / 23.1
32
3.1
Mar
33.6 / 23.7
117
6.5
Apr
33.5 / 24.2
144
10.4
May
32.4 / 24.6
278
16.6
Jun
31.8 / 24.6
314
16.0
Jul
31.5 / 24.6
260
16.2
Aug
31.3 / 24.7
378
17.4
Sep
30.9 / 24.1
399
19.2
Oct
31.0 / 23.7
371
19.9
Nov
31.4 / 23.5
219
14.2
Dec
31.3 / 23.1
86
7.7
Weather station: PHUKET AIRPORT (WMO 48565); at least 29 years of data.
Khao Lak (Takua Pa) Andaman coast
Driest months: January, February, December.
Wettest months: August, September, October.
Hottest month (by average high): April.
Average rain per year: 3,873 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
32.6 / 22.1
62
4.9
Feb
33.2 / 22.3
45
4.1
Mar
33.6 / 23.3
145
8.6
Apr
33.7 / 24.3
222
13.6
May
32.6 / 24.7
431
20.2
Jun
31.9 / 24.6
457
18.9
Jul
31.5 / 24.6
466
19.7
Aug
31.3 / 24.5
570
20.5
Sep
30.9 / 23.9
636
22.5
Oct
31.1 / 23.5
529
21.6
Nov
31.8 / 23.2
232
13.8
Dec
31.9 / 22.7
78
6.9
Weather station: TAKUA PA (WMO 48561); at least 28 years of data.
Ko Lanta (Krabi) Andaman coast
Driest months: January, February, December.
Wettest months: August, September, October.
Hottest month (by average high): March.
Average rain per year: 2,220 mm.
Month
High / low (°C)
Rain (mm)
Rainy days
Jan
32.6 / 24.1
31
2.6
Feb
33.5 / 24.4
24
1.8
Mar
33.9 / 24.7
69
4.8
Apr
33.8 / 25.1
122
9.0
May
32.6 / 25.4
228
14.2
Jun
31.9 / 25.3
286
15.1
Jul
31.6 / 25.1
289
14.9
Aug
31.2 / 25.2
342
14.8
Sep
30.9 / 24.8
319
17.0
Oct
31.0 / 24.5
298
17.9
Nov
31.3 / 24.3
148
12.3
Dec
31.4 / 23.9
65
7.8
Weather station: KO LANTA (WMO 48566); at least 28 years of data.