Loh Ba Gao Beach – Image courtesy of Phi Phi Island Village Beach Resort & Spa
Best time to visit Thailand
The best time to visit Thailand is between November and February, when the country is mainly dry and not too hot, typically averaging 28°C (82°F).
Thailand's weather
Northern and Central Thailand, including Chang Mai and Bangkok, experience three distinct seasons:
hot and humid – March to May, average 35°C (95°F);
hot and wet – June to October, average 32°C (89°F) (October is the wettest month); and
warm and dry – November to February, average 28°C (82°F).
Typically, the Southern Thailand peninsula is best enjoyed during the dry season from December to early February, averaging 30°C (86°F).
Both Cha-Am and Hua Hin are year-round destinations.
However, the east and west coasts of Southern Thailand experience alternate peak seasons and weather patterns.
East coast – Ko Samui and the east coast islands are best from February to October.
West coast – the best time to visit Phuket, Krabi and Phi Phi Island is between November and April.
Seasons
High season: Peak tourist season runs from November to late March, with peaks in July and August.
Low season: Avoid the crowds and take advantage of discounted room rates during April to June, September and October.
Best time for activities
Rafting is best between July and October when most rivers are swollen with monsoon rain.
Both biking and trekking are best in the dry season from November to early March – but bring a sweater, as nights in northern Thailand can get pretty chilly.
Chiang Mai – Monthly Weather
| J | F | M | A | M | J | J | A | S | O | N | D | |
| Ave Temp (°C) | 21 | 23 | 27 | 29 | 28 | 28 | 27 | 27 | 27 | 26 | 24 | 21 |
| Ave High Temp (°C) | 28 | 31 | 34 | 36 | 33 | 32 | 31 | 31 | 31 | 31 | 29 | 27 |
| Ave Low Temp (°C) | 14 | 15 | 18 | 22 | 23 | 24 | 23 | 23 | 23 | 22 | 19 | 15 |
| Sunshine (Hrs daily) | 9 | 9 | 9 | 9 | 8 | 6 | 5 | 4 | 6 | 7 | 8 | 9 |
| Daylight (Hrs daily) | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 |
| Comfort Level |  |
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| Ave Humidity (%) | 70 | 55 | 55 | 60 | 75 | 80 | 80 | 85 | 85 | 80 | 75 | 75 |
| UV Index | 9 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 9 | 8 |
| Days with some Rain | 1 | 1 | 3 | 7 | 17 | 18 | 21 | 23 | 20 | 12 | 5 | 2 |
| Ave Rainfall (mm) | 8 | 6 | 10 | 40 | 150 | 130 | 160 | 220 | 250 | 130 | 40 | 10 |
| (Chiang Mai, Thailand) | J | F | M | A | M | J | J | A | S | O | N | D |
More information about Chang Mai weather…
Bangkok – Monthly Weather
| J | F | M | A | M | J | J | A | S | O | N | D | |
| Ave Temp (°C) | 26 | 28 | 29 | 30 | 30 | 29 | 29 | 28 | 28 | 28 | 27 | 26 |
| Ave High Temp (°C) | 31 | 32 | 33 | 34 | 33 | 32 | 32 | 32 | 31 | 31 | 31 | 30 |
| Ave Low Temp (°C) | 21 | 23 | 25 | 26 | 26 | 26 | 25 | 26 | 25 | 25 | 23 | 21 |
| Sunshine (Hrs daily) | 9 | 9 | 9 | 9 | 7 | 7 | 6 | 6 | 6 | 6 | 8 | 9 |
| Daylight (Hrs daily) | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 |
| Comfort Level | |
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| Ave Humidity (%) | 70 | 70 | 70 | 75 | 75 | 75 | 75 | 80 | 80 | 80 | 70 | 65 |
| UV Index | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 |
| Days with some Rain | 2 | 2 | 5 | 8 | 17 | 18 | 19 | 21 | 22 | 16 | 5 | 2 |
| Ave Rainfall (mm) | 10 | 20 | 30 | 70 | 190 | 150 | 150 | 180 | 320 | 230 | 50 | 10 |
| (Bangkok, Thailand) | J | F | M | A | M | J | J | A | S | O | N | D |
More information about Bangkok weather …
Hua Hin – Monthly Weather
| J | F | M | A | M | J | J | A | S | O | N | D | |
| Ave Temp (°C) | 26 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 27 | 26 |
| Ave High Temp (°C) | 30 | 32 | 33 | 34 | 34 | 33 | 33 | 33 | 33 | 31 | 30 | 29 |
| Ave Low Temp (°C) | 22 | 23 | 24 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 22 |
| Sunshine (Hrs daily) | 9 | 9 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 9 |
| Daylight (Hrs daily) | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 |
| Comfort Level | |
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| Ave Humidity (%) | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 76 | 80 | 80 | 75 | 70 |
| UV Index | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 |
| Days with some Rain | 1 | 1 | 3 | 3 | 9 | 10 | 12 | 12 | 13 | 14 | 4 | 1 |
| Ave Rainfall (mm) | 10 | 30 | 20 | 40 | 100 | 80 | 100 | 90 | 100 | 260 | 140 | 10 |
| Sea Temp (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| (Hua Hin, Thailand) | J | F | M | A | M | J | J | A | S | O | N | D |
More information about Hua Hin weather…
Ko Samui – Monthly Weather
| J | F | M | A | M | J | J | A | S | O | N | D | |
| Ave Temp (°C) | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 26 |
| Ave High Temp (°C) | 29 | 30 | 31 | 32 | 33 | 32 | 32 | 32 | 32 | 31 | 30 | 29 |
| Ave Low Temp (°C) | 24 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 24 |
| Sunshine (Hrs daily) | 7 | 8 | 8 | 8 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
| Daylight (Hrs daily) | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 |
| Comfort Level | |
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| Ave Humidity (%) | 85 | 85 | 85 | 80 | 80 | 80 | 80 | 80 | 80 | 85 | 85 | 85 |
| UV Index | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 |
| Days with some Rain | 7 | 5 | 5 | 5 | 9 | 9 | 9 | 10 | 11 | 16 | 15 | 9 |
| Ave Rainfall (mm) | 90 | 30 | 30 | 80 | 160 | 100 | 120 | 100 | 130 | 290 | 430 | 150 |
| Sea Temp (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| (Ko Samui, Thailand) | J | F | M | A | M | J | J | A | S | O | N | D |
More information about Ko Samui weather…
Phuket – Monthly Weather
| J | F | M | A | M | J | J | A | S | O | N | D | |
| Ave Temp (°C) | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 28 | 27 | 27 |
| Ave High Temp (°C) | 32 | 33 | 34 | 33 | 32 | 32 | 31 | 31 | 30 | 31 | 31 | 31 |
| Ave Low Temp (°C) | 22 | 23 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 23 |
| Sunshine (Hrs daily) | 8 | 9 | 8 | 9 | 8 | 7 | 8 | 8 | 7 | 7 | 7 | 8 |
| Daylight (Hrs daily) | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 |
| Comfort Level | |
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| Ave Humidity (%) | 75 | 75 | 75 | 80 | 85 | 85 | 85 | 85 | 85 | 90 | 85 | 80 |
| UV Index | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 |
| Days with some Rain | 6 | 4 | 8 | 11 | 18 | 18 | 19 | 19 | 21 | 23 | 16 | 10 |
| Ave Rainfall (mm) | 40 | 30 | 40 | 150 | 200 | 240 | 300 | 260 | 400 | 280 | 200 | 60 |
| Sea Temp (°C) | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 |
| (Phuket, Thailand) | J | F | M | A | M | J | J | A | S | O | N | D |
More information about Phuket weather …
Note: Meteorological data is sourced from the United States National Oceanic and Atmospheric Administration (NOAA) and the World Meteorological Organization (WMO), with additional historical climate data sourced from the Thai Meteorological Department.
Latest update: Best time to visit Thailand: 14 January, 2020
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