Chiang Mai weather
Loading live data…Latest for Chiang Mai: European (ECMWF): 28° Clear · American (NOAA GFS): 28° Clear · German (DWD ICON): 31° Clear.
The weather map: all three models at once
European, American, German side by side around Chiang Mai and nearby towns.Live rain radar →Hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
10-day forecast, out to 14 days
where the models agree, and where they splitHeading to Chiang Mai? Chiang Mai, Thailand, sits at 18.8°N in a tropical climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Chiang Mai right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.
Best time to visit Chiang Mai
Chiang Mai is warm year-round. Even January stays mild (lows near 16°C), so the main thing to plan around is the August wet season.
Chiang Mai weather by month
what to expect in Chiang Mai through the year, 1991-2020 normals, Chiang Mai (WMO)Here is Chiang Mai's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Chiang Mai by season.
Chiang Mai compared with Sydney
30-year averages: daytime highs month by month, rain and sunlightWarmer through the year
average daytime high: Chiang Mai 33°C, Sydney 23°C
Rain over a year
Chiang Mai 1,139 mm, Sydney 1,148 mm
Sunlight vs a clear sky
solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)
On 30-year averages Chiang Mai runs 10°C warmer than Sydney, with every month between +2°C and +15°C. Over a year it gets about the same rain as Sydney.
Month by month in numbers
| Month | Chiang Mai | Sydney | Difference | Sunlight, Chiang Mai | Sunlight, Sydney |
|---|---|---|---|---|---|
| January | 30°C | 27°C | +3°C | 91% | 75% |
| February | 33°C | 28°C | +5°C | 95% | 73% |
| March | 35°C | 26°C | +9°C | 92% | 75% |
| April | 37°C | 24°C | +13°C | 88% | 77% |
| May | 35°C | 22°C | +13°C | 74% | 79% |
| June | 33°C | 18°C | +15°C | 63% | 74% |
| July | 32°C | 18°C | +14°C | 58% | 80% |
| August | 32°C | 20°C | +12°C | 57% | 82% |
| September | 32°C | 22°C | +10°C | 66% | 82% |
| October | 32°C | 24°C | +8°C | 74% | 77% |
| November | 31°C | 25°C | +6°C | 85% | 74% |
| December | 29°C | 27°C | +2°C | 88% | 74% |
Daytime highs and lows on this page are 1991-2020 averages. Chiang Mai: station normals from Chiang Mai (WMO), rain included. Sydney: station normals from Sydney Observatory Hill (WMO), rain included. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Sydney stands in for Australia here; other cities have their own climate tables.