Climate of Chiang Rai, Thailand
Area-weighted average across Chiang Rai. For where people actually live and travel, see the cities below.
Chiang Rai, a subdivision of Thailand, has a mild oceanic climate on average. Area-weighted monthly temperatures across the whole territory range from 19.7°C / 67.5°F in December to 27.4°C / 81.3°F in April, with rainfall from 7 mm / 0.3 in to 299 mm / 11.8 in depending on the season (1421 mm / 55.9 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 19.8°C67.6°F | 7 mm0.3″ | Sunny & Mild |
| February | 22.3°C72.1°F | 12 mm0.5″ | Sunny & Warm |
| March | 24.9°C76.8°F | 24 mm0.9″ | Sunny & Warm |
| April | 27.4°C81.3°F | 81 mm3.2″ | Tropical |
| May | 27.2°C81°F | 188 mm7.4″ | Tropical |
| June | 26.8°C80.2°F | 160 mm6.3″ | Tropical |
| July | 26.3°C79.3°F | 256 mm10.1″ | Tropical |
| August | 25.9°C78.6°F | 299 mm11.8″ | Tropical |
| September | 25.7°C78.3°F | 224 mm8.8″ | Tropical |
| October | 24.7°C76.5°F | 109 mm4.3″ | Tropical |
| November | 22.2°C72°F | 46 mm1.8″ | — |
| December | 19.7°C67.5°F | 15 mm0.6″ | Sunny & Mild |
Frequently asked questions
What is the best time to visit Chiang Rai?
The best months to visit Chiang Rai, Thailand for sunny, dry weather are January, February, March, December. The warmest month is April at an area-wide average of 27.4°C / 81.3°F, and the driest is January with about 7 mm / 0.3 in of rainfall.
What is the climate of Chiang Rai?
Chiang Rai, Thailand has area-weighted monthly average temperatures ranging from 19.7°C / 67.5°F in December to 27.4°C / 81.3°F in April. Annual rainfall averages about 1421 mm / 55.9 in, with the wettest month being August (299 mm / 11.8 in) and the driest January (7 mm / 0.3 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Chiang Rai?
The hottest month in Chiang Rai is April, with an area-wide average temperature of 27.4°C / 81.3°F.
What is the coldest month in Chiang Rai?
The coldest month in Chiang Rai is December, with an area-wide average temperature of 19.7°C / 67.5°F.
When does it rain most in Chiang Rai?
The wettest month in Chiang Rai is August, averaging about 299 mm / 11.8 in of rainfall. The driest is January with about 7 mm / 0.3 in.