Weather in Bangkok in January 2025
Average weather
Average temperature in Bangkok in January
Going from a maximum of +35°C during the day to a minimum of +18°C during the night, the temperature in January averages around +32°C.
The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +30°C to +32°C.
Is Bangkok warm or cold in January?
Bangkok is typically hot in January.
Maximum temperatures go up compared to the previous month from +31°C to +32°C. The minimum temperature also goes up from +21°C to +21°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
January is one of the coolest months in Bangkok, here is the comparison with other months:
Climate in Bangkok in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +31°C | +32°C | +33°C | ||||
| Min. temperature | ||||||
| +12°C | +13°C | +15°C | ||||
| Max. temperature | ||||||
| +35°C | +36°C | +37°C | ||||
| Rainfall | ||||||
| 8 mm | 11 mm | 14 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 67% | 70% | 72% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 7 | 9 | 9 | ||||
| Cloudy days | ||||||
| 20 | 16 | 12 | ||||
| Rainy days | ||||||
| 4 | 6 | 7 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January often has better weather than December. It’s getting warmer as January arrives. The average maximum temperature goes up from +31°C to +32°C during the day. Prepare for more rain. Average rainfall goes from 8 mm to 11 mm. Humidity rises from 67% to 70%. The average wind speed doesn’t change much during January, staying around 1 m/s. The good news is there are likely to be more sunny days in January, from 7 to 9.
Next month (February) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Bangkok is gradually decreasing during January, going from 2 m/s to 1 m/s over the course of the month.
Rain
How was the weather last January in Bangkok?
Climate Change over Years
The climate in Bangkok in January has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+32°C) and the highest in 2020 (+34°C). The driest year was 1979 with only 810 mm of rainfall, and the wettest year was 2018 with 1630 mm.
FAQ
Is January a good time to visit Bangkok?
Can you sunbathe in Bangkok in January?
Is Bangkok rainy in January?
Is it sunny in Bangkok in January?
Other cities in Thailand
Monthly weather in Bangkok
Source of the data
For this page, we’ve looked at the typical weather in Bangkok, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.