Best time to visit Thailand
The best time to visit Thailand is December to February, when its 13 destinations average 88/100 for climate comfort — September is the weakest month, at 61/100.
Updated September 2026 · averaged over 13 Thailand destinations · climate normals from ERA5 reanalysis
Thailand climate comfort by month
| Month | Comfort | Avg high | Rain | Pick of the month |
|---|---|---|---|---|
| January | 88 | 29.5°C | 26 mm | Hua Hin 93 |
| February | 85 | 31°C | 31 mm | Ko Lanta 91 |
| March | 78 | 32.8°C | 41 mm | Ko Lanta 88 |
| April | 71 | 33.2°C | 101 mm | Hua Hin 83 |
| May | 68 | 32.4°C | 167 mm | Hua Hin 81 |
| June | 71 | 31.1°C | 180 mm | Ko Samui 86 |
| July | 67 | 30.5°C | 218 mm | Ko Samui 80 |
| August | 65 | 30°C | 234 mm | Ko Samui 84 |
| September | 61 | 29.6°C | 278 mm | Ko Samui 74 |
| October | 65 | 29.2°C | 242 mm | Pattaya 72 |
| November | 75 | 29.3°C | 123 mm | Pattaya 85 |
| December | 86 | 28.8°C | 42 mm | Ko Chang 93 |
Comfort is SeasonMap's 0–100 score, averaged across every Thailand destination in the dataset. Each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. Averages from ERA5 reanalysis normals, not forecasts.
All 13 destinations in Thailand
- Ayutthayaweather by month →
- Bangkokweather by month →
- Chiang Maiweather by month →
- Chiang Raiweather by month →
- Hua Hinweather by month →
- Kanchanaburiweather by month →
- Ko Changweather by month →
- Ko Lantaweather by month →
- Ko Samuiweather by month →
- Krabiweather by month →
- Paiweather by month →
- Pattayaweather by month →
- Phuketweather by month →
Thailand — FAQ
- When is the best time to visit Thailand?
- December to February. Across Thailand's 13 destinations, January averages 88/100 for climate comfort with mean highs of 29.5°C and 26 mm of rain.
- What is the worst month to visit Thailand?
- September, averaging 61/100 — mean highs of 29.6°C and 278 mm of rain across the country's destinations.
- What is the hottest month in Thailand?
- April, with mean daily highs of 33.2°C averaged across 13 destinations.
- What is the wettest month in Thailand?
- September, averaging 278 mm of rain.