Weather in Chiang Rai in January 2026
Average weather
Average temperature in Chiang Rai in January
Going from a maximum of +31°C during the day to a minimum of +10°C during the night, the temperature in January averages around +28°C.
The average maximum temperature goes up 14% by the end of the month, compared with the beginning of the month, from +26°C to +29°C.
Is Chiang Rai warm or cold in January?
Chiang Rai is typically warm in January.
Maximum temperatures go up compared to the previous month from +27°C to +28°C. The minimum temperature also goes down from +15°C to +14°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is one of the coolest months in Chiang Rai, here is the comparison with other months:
Climate in Chiang Rai in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +28°C | +31°C | ||||
| Min. temperature | ||||||
| +5°C | +7°C | +9°C | ||||
| Max. temperature | ||||||
| +33°C | +33°C | +37°C | ||||
| Rainfall | ||||||
| 21 mm | 21 mm | 16 mm | ||||
| Wind | ||||||
| 0 m/s | 0 m/s | 0 m/s | ||||
| Humidity | ||||||
| 79% | 76% | 68% | ||||
| Air pressure | ||||||
| 1015 HPa | 1013 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 15 | 17 | 19 | ||||
| Cloudy days | ||||||
| 9 | 6 | 4 | ||||
| Rainy days | ||||||
| 7 | 8 | 5 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as good as in December. It’s getting warmer as January arrives. The average maximum temperature goes up from +27°C to +28°C during the day. The rainfall amount in January stays the same as in the previous month with a 21 mm of total precipitation. It feels drier, as humidity decreases from 79% to 76%. The average wind speed doesn’t change much during January, staying around 0 m/s. The good news is there are likely to be more sunny days in January, from 15 to 17.
But maybe it is worth considering traveling in February as the weather gets better.
Wind
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Chiang Rai is gradually increasing during January, going from 1 m/s to 1 m/s over the course of the month.
How was the weather last January in Chiang Rai?
Climate Change over Years
The climate in Chiang Rai in January has not changed much over the last 43 years.
The average temperature was the lowest in 1999 (+30°C) and the highest in 2010 (+32°C). The driest year was 2019 with only 1196 mm of rainfall, and the wettest year was 2022 with 3394 mm.
FAQ
Is January a good time to visit Chiang Rai?
Can you sunbathe in Chiang Rai in January?
Is Chiang Rai rainy in January?
Is it sunny in Chiang Rai in January?
Other cities in Thailand
Monthly weather in Chiang Rai
Source of the data
For this page, we’ve looked at the typical weather in Chiang Rai, 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.
