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Bangkok in January: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Bangkok in January will be like? Take a look at our weather guide for Bangkok, based on historical data.
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January

Weather in Bangkok in January 2025

Great Weather
Hot
☁️
Cloudy
January is an ideal time to visit Bangkok if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +90°F and about 9 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 11 mm of precipitation over an average of 6 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flights in one click on Avionero.

Average weather

☀️
+90°F
Avg. max. temperature
+55°F
Min.
+97°F
Max.
11 mm
Total precipitation
70%
Avg. humidity
1 m/s
Avg. wind
9 ☀️
Sunny Days
16 ⛅️
Cloudy
6 🌦
Rainy
Our opinion: Bangkok has great weather in January.

Average temperature in Bangkok in January

Here are the expected maximum, average and minimum temperatures in Bangkok for January based on the historical data.
Last Year
Historical Data

Going from a maximum of +95°F during the day to a minimum of +64°F during the night, the temperature in January averages around +90°F.

The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +86°F to +90°F.

Is Bangkok warm or cold in January?

Bangkok is typically hot in January.

Maximum temperatures go up compared to the previous month from +88°F to +90°F. The minimum temperature also goes up from +70°F to +70°F.

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

Bangkok weather looks like this, on average, in January and the surrounding months.
DecemberJanuaryFebruary
Avg. temperature
+88°F+90°F+91°F
Min. temperature
+54°F+55°F+59°F
Max. temperature
+95°F+97°F+99°F
Rainfall
8 mm11 mm14 mm
Wind
1 m/s1 m/s1 m/s
Humidity
67%70%72%
Air pressure
1012 HPa1011 HPa1010 HPa
Sunny days
799
Cloudy days
201612
Rainy days
467
Snowy days
000

January often has better weather than December. It’s getting warmer as January arrives. The average maximum temperature goes up from +88°F to +90°F 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

Wind speed in Bangkok in January based on historical data.
Last Year
Historical Data

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

Amount of rainfall in mm during January in Bangkok based on historical data.
Last Year
Historical Data
Typically, there is a 3% chance of rain on an average day in January, with total rainfall of approximately 3 mm. The maximum amount of rainfall per day is around 2 mm, which is considered light rain. Bangkok is amazing in January with as little as 1 rainy days on average, so plan adventures in the great outdoors.
Here’s how January is compared with other months in the amount of precipitation, total mm:
Bangkok wettest month is September, where a typical day has a 50% chance of precipitation and 232 mm of rainfall per day. December, on the other hand, is the driest month with a mere 13% chance of precipitation and 8 mm of rainfall per day.

How was the weather last January in Bangkok?

This is the weather in Bangkok in January 2023:
1 January
☁️
+87°F
2 January
☁️
+88°F
3 January
☁️
+87°F
4 January
☁️
+90°F
5 January
☁️
+90°F
6 January
☁️
+87°F
7 January
☀️
+86°F
8 January
☁️
+85°F
9 January
☁️
+90°F
10 January
☁️
+88°F
11 January
☀️
+84°F
12 January
☁️
+88°F
13 January
☀️
+91°F
14 January
☀️
+91°F
15 January
☀️
+92°F
16 January
☀️
+91°F
17 January
☁️
+91°F
18 January
☁️
+90°F
19 January
☀️
+91°F
20 January
☁️
+90°F
21 January
☀️
+91°F
22 January
☀️
+93°F
23 January
☀️
+96°F
24 January
☁️
+92°F
25 January
☁️
+85°F
26 January
☀️
+90°F
27 January
☁️
+90°F
28 January
☁️
+87°F
29 January
☁️
+87°F
30 January
☀️
+84°F
31 January
☁️
+90°F
In January 2023 Bangkok had 12 sunny days, 19 cloudy days, and 0 rainy days. The average maximum temperature was +90°F, with an absolute maximum of +95°F and a minimum of +84°F. The average humidity was 63%, with a maximum of 97% and a minimum of 33%. The average wind speed was 2 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in January?

Climate Change Over the Years

This is how Bangkok climate has changed over the last 43 years.

The climate in Bangkok in January has not changed that much over the last 43 years.

The average temperature was the lowest in 1985 (+90°F) and the highest in 2020 (+93°F). The driest year was 1979 with only 810 mm of rainfall, and the wettest year was 2018 with 1630 mm.

FAQ

Frequently asked questions about the weather in Bangkok in January:

Is January a good time to visit Bangkok?

Yes, January is a great time to go to Bangkok, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Bangkok.

Can you sunbathe in Bangkok in January?

Absolutely, January is hot in Bangkok. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Bangkok rainy in January?

Bangkok is usually dry in January. Plan your packing around outdoor activities and exploring.

Is it sunny in Bangkok in January?

Usually, it’s not very sunny in Bangkok in January, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Thailand

Check out the weather for 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.