Climate averages 1991–2020
Chiang Rai weather
in July.
A hot, very wet month: the 6th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Chiang Rai: daytime highs average 29.5°C and nights cool to about 23.4°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 398 mm of rain on roughly 28 days, which makes July a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 13 min on an average July day.
The nearest other city in this atlas is Chiang Mai (153 km away). In July its highs average 29.9°C, about as warm as Chiang Rai, with 175 mm of rain.
Among the 46 cities listed in Thailand, Chiang Rai ranks 44th of 46 for the warmest July highs and 46th of 46 for the driest July (rainfall, lowest first). The mean July high of those 46 cities is 31.0°C; Chiang Rai is 1.5°C cooler than that mean.
From July to August, average highs fall by 0.3°C to 29.2°C, and monthly rainfall falls from 398 mm to 383 mm.
The annual picture
July 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 | 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, selected | 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
July in nearby cities
- Chiang Mai in JulyThailand · 153 kmHigh 29.9°C · Low 23.8°C · 175 mm rain
- Lampang in JulyThailand · 183 kmHigh 29.6°C · Low 23.7°C · 202 mm rain
- Kēng Tung in JulyMyanmar · 192 kmHigh 28.4°C · Low 21.9°C · 319 mm rain
- Möng Yang in JulyMyanmar · 216 kmHigh 27.0°C · Low 20.6°C · 312 mm rain
- Yunjinghong in JulyChina · 255 kmHigh 29.6°C · Low 22.6°C · 341 mm rain
- Menglang in JulyChina · 295 kmHigh 26.2°C · Low 20.1°C · 281 mm rain
- Taunggyi in JulyMyanmar · 307 kmHigh 23.3°C · Low 17.8°C · 158 mm rain
- Yawnghwe in JulyMyanmar · 314 kmHigh 26.0°C · Low 20.8°C · 158 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.