Climate averages 1991–2020
Chiang Rai weather
in January.
A warm, fairly dry month: the 11th warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Chiang Rai: daytime highs average 26.6°C and nights cool to about 15.0°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 22 mm of rain on roughly 3 days, which makes January a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 04 min on an average January day.
The nearest other city in this atlas is Chiang Mai (153 km away). In January its highs average 28.1°C, 1.4°C warmer than Chiang Rai, with 6.7 mm of rain.
Among the 46 cities listed in Thailand, Chiang Rai ranks 46th of 46 for the warmest January highs and joint 34th of 46 for the driest January (rainfall, lowest first). The mean January high of those 46 cities is 30.2°C; Chiang Rai is 3.5°C cooler than that mean.
From January to February, average highs rise by 3.3°C to 30.0°C, and monthly rainfall falls from 22 mm to 14 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chiang Rai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 26.6°C15.0°C | 15.0°C | 22 | 3.0 | 11.111 h |
| February | 30.0°C16.2°C | 16.2°C | 14 | 2.5 | 11.511 h |
| March | 33.0°C19.3°C | 19.3°C | 42 | 5.1 | 12.012 h |
| April | 33.6°C22.4°C | 22.4°C | 132 | 11.8 | 12.613 h |
| May | 31.5°C23.4°C | 23.4°C | 292 | 22.8 | 13.113 h |
| June | 30.4°C23.7°C | 23.7°C | 297 | 26.2 | 13.313 h |
| July | 29.5°C23.4°C | 23.4°C | 398 | 28.4 | 13.213 h |
| August | 29.2°C23.2°C | 23.2°C | 383 | 28.8 | 12.813 h |
| September | 29.0°C22.9°C | 22.9°C | 295 | 25.1 | 12.312 h |
| October | 28.4°C21.6°C | 21.6°C | 139 | 17.8 | 11.712 h |
| November | 27.2°C18.4°C | 18.4°C | 49 | 6.6 | 11.211 h |
| December | 25.5°C15.4°C | 15.4°C | 27 | 3.7 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Chiang Mai in JanuaryThailand · 153 kmHigh 28.1°C · Low 16.2°C · 6.7 mm rain
- Lampang in JanuaryThailand · 183 kmHigh 28.8°C · Low 17.7°C · 11 mm rain
- Kēng Tung in JanuaryMyanmar · 192 kmHigh 24.5°C · Low 12.9°C · 20 mm rain
- Möng Yang in JanuaryMyanmar · 216 kmHigh 23.4°C · Low 11.1°C · 22 mm rain
- Yunjinghong in JanuaryChina · 255 kmHigh 24.7°C · Low 12.6°C · 29 mm rain
- Menglang in JanuaryChina · 295 kmHigh 22.0°C · Low 11.6°C · 31 mm rain
- Taunggyi in JanuaryMyanmar · 307 kmHigh 21.2°C · Low 9.3°C · 11 mm rain
- Yawnghwe in JanuaryMyanmar · 314 kmHigh 24.4°C · Low 13.1°C · 11 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chiang Rai) is explained once on the Chiang Rai year overview and on the Sources, method and limits page.