City, Thailand
Chiang Rai weather by month and the best time to visit
When to go to Chiang Rai
Nov–Feb is cool, dry and clear. Feb–Apr is smoke and burning season; Jun–Oct is wet and green. Dec–Jan is busiest.
Chiang Rai weather by month
Average daily high, rainfall and conditions.
- Jan27°19 mm
- Feb30°5 mm
- Mar34°26 mm
- Apr35°72 mm
- May34°178 mm
- Jun32°141 mm
- Jul31°245 mm
- Aug30°284 mm
- Sep30°210 mm
- Oct30°99 mm
- Nov28°34 mm
- Dec26°15 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 27°C80°F | 14°C57°F | 19 mm | 70% | Pleasant |
| February | 30°C87°F | 16°C60°F | 5 mm | 60% | Pleasant |
| March | 34°C92°F | 19°C66°F | 26 mm | 55% | Hot |
| April | 35°C96°F | 22°C72°F | 72 mm | 59% | Hot |
| May | 34°C93°F | 23°C74°F | 178 mm | 72% | Rainy |
| June | 32°C90°F | 23°C74°F | 141 mm | 79% | Hot & humid |
| July | 31°C87°F | 23°C73°F | 245 mm | 83% | Rainy |
| August | 30°C86°F | 23°C73°F | 284 mm | 85% | Rainy |
| September | 30°C87°F | 22°C72°F | 210 mm | 83% | Rainy |
| October | 30°C85°F | 21°C69°F | 99 mm | 81% | Pleasant |
| November | 28°C82°F | 17°C63°F | 34 mm | 78% | Pleasant |
| December | 26°C79°F | 14°C57°F | 15 mm | 75% | Pleasant |
Best months across Thailand
| Place | Best months | Warmest month |
|---|---|---|
| Bangkok | Nov–Feb | Mar (36°C) |
| Phuket | Nov–Mar | Mar (30°C) |
| Chiang Mai | Nov–Jan | Apr (37°C) |
| Koh Samui | Jan–Apr, Jul–Aug | May (30°C) |
| Krabi | Nov–Mar | Mar (31°C) |
| Koh Phi Phi | Nov–Mar | Apr (30°C) |
| Koh Phangan | Jan–Apr, Jul–Aug | May (27°C) |
| Pai | Nov–Feb | Apr (35°C) |
| Pattaya | Nov–Feb | Apr (31°C) |
| Koh Tao | Feb–Aug | May (29°C) |
| Patong | Nov–Apr | Mar (30°C) |
| Hua Hin | Nov–Mar | Apr (33°C) |
| Chiang Rai | Nov–Feb | Apr (35°C) |
| Ayutthaya | Nov–Feb | Mar (37°C) |
| Koh Lanta | Nov–Apr | Apr (29°C) |
| Railay | Nov–Mar | Mar (31°C) |
| Kanchanaburi | Nov–Feb | Apr (37°C) |
| Koh Chang | Nov–Feb | Apr (30°C) |
| Khao Lak | Nov–Mar | Mar (31°C) |
| Koh Samet | Nov–Mar | Apr (30°C) |
| Koh Lipe | Nov–Mar | Apr (30°C) |
| Khao Yai | Nov–Feb | Apr (34°C) |
| Khao Sok | Dec–Apr | Apr (32°C) |
| Sukhothai | Nov–Feb | Apr (38°C) |
| Hat Yai | Jan–Apr | Apr (31°C) |
| Kata Beach | Nov–Mar | Mar (30°C) |
| Jomtien | Nov–Feb | Apr (31°C) |
| Rawai | Nov–Mar | Mar (30°C) |
| Udon Thani | Nov–Feb | Apr (37°C) |
| Koh Kood | Nov–Mar | May (30°C) |
Quick answers
What is the best month to visit Chiang Rai?
Nov–Feb. Nov–Feb is cool, dry and clear. Feb–Apr is smoke and burning season; Jun–Oct is wet and green. Dec–Jan is busiest.
When is the rainy season in Chiang Rai?
Rain peaks in August with about 284 mm. Months with 150 mm or more: May, Jul–Sep.
What is the hottest month in Chiang Rai?
April, with average highs of 35°C (96°F).
How cold does Chiang Rai get?
The coolest nights are in January, averaging 14°C (57°F).
More about Chiang Rai
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 1°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.