Weather by month for central Thailand, the best months to go and how Thailand's regions differ, scored from 10 years of climate data.
Jan, Dec
The highest month scores: comfortable temperatures, little rain and plenty of sun.
Highs 31°C · 2–3 rain days
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
The weakest weather of the year: too hot, too cold or too wet.
Highs 31°C to 37°C · 6–25 rain days
Weather by month
Average highs and lows, rain days, sunshine and our month score out of 10.
| Month | High / low | Rain days | Sunshine | Score |
|---|---|---|---|---|
| Best month: January | 31°C / 21°C | 3 days (17 mm) | 10.1 h/day | 6.8/10 |
| February | 33°C / 22°C | 3 days (22 mm) | 10.7 h/day | 4.3/10 |
| March | 36°C / 25°C | 6 days (37 mm) | 10.8 h/day | 2.4/10 |
| April | 37°C / 27°C | 9 days (76 mm) | 11.0 h/day | 1.8/10 |
| May | 36°C / 27°C | 18 days (138 mm) | 10.2 h/day | 0.6/10 |
| June | 35°C / 26°C | 20 days (128 mm) | 9.5 h/day | 0.9/10 |
| July | 34°C / 26°C | 22 days (181 mm) | 8.5 h/day | 0.7/10 |
| August | 34°C / 26°C | 24 days (201 mm) | 8.0 h/day | 0.8/10 |
| September | 32°C / 25°C | 25 days (273 mm) | 8.1 h/day | 3.0/10 |
| October | 31°C / 24°C | 20 days (212 mm) | 9.1 h/day | 3.4/10 |
| November | 32°C / 23°C | 8 days (61 mm) | 9.8 h/day | 4.6/10 |
| Best month: December | 31°C / 21°C | 2 days (12 mm) | 10.0 h/day | 7.4/10 |
Figures for central Thailand; the country's best months are weighted across its cities. Best months are highlighted. How we score months
Month by month
31°C / 21°C · 3 rain days · 10.1 h sun
Expect a high of 31°C with lows around 21°C and just 3.1 rain days. Sun hours sit at 10.1, among the best of the year. This is a good month to visit, combining warm days with low rainfall.
33°C / 22°C · 3 rain days · 10.7 h sun
Highs climb to 33°C and rain stays light at 3.2 days. Sun hours reach 10.7. The month scores as an ok time to visit, with heat building but rain still minimal.
36°C / 25°C · 6 rain days · 10.8 h sun
Temperatures jump to a high of 36°C, and rain days rise to 5.9. The heat becomes intense here, which is why the month scores low. Sun hours stay high at 10.8 if you can handle the warmth.
37°C / 27°C · 9 rain days · 11.0 h sun
This is the hottest month, with highs of 37°C and lows of 26.5°C. Rain days increase to 8.7, with 76mm falling. The combination of extreme heat and rising rain makes this a tough month weather-wise.
36°C / 27°C · 18 rain days · 10.2 h sun
Rain days jump sharply to 18.4, with 138mm of rainfall, marking the start of the wet season. Highs ease slightly to 35.7°C but humidity stays high. The frequent rain is the main reason this month scores poorly.
35°C / 26°C · 20 rain days · 9.5 h sun
Rain continues often, with 19.5 rain days and 128mm total. Highs sit at 35.1°C. Sun hours drop to 9.5 as cloud cover increases, keeping this among the lower-scoring months.
34°C / 26°C · 22 rain days · 8.5 h sun
Rainfall rises to 181mm across 21.6 rain days, one of the wettest stretches of the year. Highs ease to 33.6°C. Sun hours fall to 8.5, reflecting the heavier wet-season cloud.
34°C / 26°C · 24 rain days · 8.0 h sun
This is the cloudiest month, with sun hours down to 8 and 23.6 rain days bringing 201mm. Highs hold at 33.5°C. The near-daily rain explains the low score.
32°C / 25°C · 25 rain days · 8.1 h sun
Rainfall peaks this month at 273mm over 24.9 rain days, the wettest conditions of the year. Highs drop to 32°C. Frequent heavy rain keeps this the toughest month for a trip, though it suits travellers after the lush green-season look.
31°C / 24°C · 20 rain days · 9.1 h sun
Rain days ease slightly to 20 but still bring 212mm. Highs sit at 31.2°C. Sun hours recover a little to 9.1, though rain remains frequent enough to keep the score low.
32°C / 23°C · 8 rain days · 9.8 h sun
Rain drops off to 8.3 days with 61mm, and highs are a comfortable 31.5°C. Sun hours rise to 9.8. The improving conditions push this into an ok verdict as the dry season returns.
31°C / 21°C · 2 rain days · 10.0 h sun
This is the best month, with just 1.6 rain days and 12mm of rain. Highs reach 30.6°C with lows of 21.3°C, and sun hours hit 10. Cool, dry, and sunny conditions explain the top score of the year.
By trip type
City sightseeing
December and January are the best months for city trips. Rain is rare, with only 1.6 to 3.1 rain days a month, and highs stay near 31°C, which makes walking around comfortable.
Hiking & nature
December and January suit hiking best. Rainfall drops to 12mm and 17mm, trails stay drier, and daytime highs of about 31°C keep hikes from getting too hot.
Keep planning
FAQ
Yes, December is one of the best months to go. It has a high score of 7.4, the lowest rainfall of the year at 12mm over just 1.6 rain days, and a warm high of 30.6°C. Sun hours sit at 10 per day, making it a dry, comfortable month.
No, August scores just 0.8 and is rated 'avoid' in the data, though travellers who like green, lush scenery still go. It brings 201mm of rain over 23.6 rain days and only 8 sun hours a day, the cloudiest stretch of the year alongside July.
Yes, January scores 6.8 and is rated 'good'. Rainfall is low at 17mm across 3.1 rain days, the high is 31.1°C, and the low drops to 20.7°C, giving warm days and cooler nights with 10.1 hours of sun.
September is the rainiest month, with 273mm of rain spread over 24.9 rain days. Sun hours drop to 8.1, similar to the surrounding months of July, August and October, which together form the wettest stretch of the year.
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