Monthly climate guide
Bangkok weather in January
Expect very hot weather in Bangkok in January: afternoons reach about 33°C (91°F), while nights drop to around 21°C (69°F). Around 20 mm of rain falls over the month (fairly dry), and skies are a mix of sun and cloud. Daytime highs are 2°C warmer than December and 3°C cooler than February.
What stands out in January
- Rain is well below Bangkok's usual level (around 83% less).
- Just 100 km apart, but Bangkok runs about 4°C warmer than Pattaya this month.
- Plan Grand Palace & Wat Phra Kaew for the cooler hours — early morning is best.
- It's one of the drier stretches of the year in Bangkok.
Avg high
33°C
91°F
Avg low
21°C
69°F
Rainfall
20 mm
fairly dry
Humidity
66%
relative
Sky
46%
cloud · a mix of sun and cloud
Bangkok weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 33°C / 91°F | 21°C / 69°F | 20 mm | 66% | 46% |
| February | 36°C / 96°F | 23°C / 73°F | 13 mm | 61% | 35% |
| March | 37°C / 99°F | 25°C / 77°F | 44 mm | 62% | 47% |
| April | 37°C / 98°F | 26°C / 79°F | 68 mm | 65% | 67% |
| May | 35°C / 95°F | 26°C / 80°F | 139 mm | 73% | 86% |
| June | 33°C / 91°F | 25°C / 78°F | 174 mm | 79% | 91% |
| July | 32°C / 90°F | 25°C / 76°F | 183 mm | 80% | 92% |
| August | 32°C / 89°F | 24°C / 76°F | 198 mm | 81% | 93% |
| September | 31°C / 87°F | 24°C / 76°F | 290 mm | 85% | 92% |
| October | 31°C / 87°F | 24°C / 75°F | 220 mm | 85% | 80% |
| November | 31°C / 87°F | 23°C / 73°F | 46 mm | 81% | 65% |
| December | 31°C / 87°F | 20°C / 68°F | 11 mm | 72% | 50% |
What to pack for January
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
Is January a good time to visit Bangkok?
Our Bangkok guide recommends: November to February, the cool, dry season — March to May gets very hot, and June to October is the rainy season.
Dress modestly (shoulders and knees covered) to enter the Grand Palace and major temples — sarongs are available to rent at the entrance if needed.
Best time to visit Bangkok →Other Thailand cities in January
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Bangkok weather in January. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/thailand/bangkok/january
<a href="https://weathercompare.eu/weather/thailand/bangkok/january">Bangkok weather in January</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/thailand/bangkok" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Bangkok weather in January"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/thailand/bangkok/january">Bangkok weather in January</a> – WeatherCompare</p>
Bangkok in January: quick answers
Is January a good time to visit Bangkok?
Yes. January is one of the best months for Bangkok, with highs around 33°C and about 20 mm of rain.
How warm is Bangkok in January?
Average highs are about 33°C (91°F) and average lows about 21°C (69°F), based on 10 years of daily data.
Does it rain a lot in Bangkok in January?
Bangkok typically gets around 20 mm of rain in January — fairly dry.
When is the best time to visit Bangkok?
November to February, the cool, dry season — March to May gets very hot, and June to October is the rainy season.
Figures are long-term averages for the area around Bangkok (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.