Mae Chan climate — normals and trends
Mae Chan (Thailand) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.3 °C and it receives 2,152 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (26.0 °C on average) and the coldest is December (18.4 °C). Rainfall peaks in August.
Mae Chan averages 0 frost days, 153 hot days (≥ 30 °C) and 188 rainy days per year.
Mae Chan has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.0 °C (on 8 May 2019) and the coldest 3.2 °C (on 6 January 1974).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Mae ChanChiang Rai
- coords
- 20.15°, 99.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.3°C
Average daily high
29.3°C
Average daily low
18.8°C
Annual rainfall
2,152mm
Sunshine / day
9.5h
Mean relative humidity
78%
Average peak wind
7.3km/h
Seasonal range
7.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
153 d/yr
Rainy days (≥ 1 mm)
188 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.7 °C
Average feels-like low
21.2 °C
Average peak gust
26.6 km/h
Tropical nights (≥ 20 °C)
193 d/yr
Solar radiation
17.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.79 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
41.0 °C
8 May 2019
Coldest day
3.2 °C
6 January 1974
Wettest day
133 mm
1 September 1995
Windiest day
22.9 km/h
9 November 1990
Strongest gust
63.0 km/h
4 September 1951
Hottest feels-like
44.8 °C
11 May 2016
Coldest feels-like
0.7 °C
5 January 1974
Sunniest day
13.0 h
26 June 1941
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 26.6 °C | +0.1 °C | 1 mm | -23 mm |
| Feb | 31.0 °C | +1.4 °C | 10 mm | -9 mm |
| Mar | 33.3 °C | +1.1 °C | 9 mm | -37 mm |
| Apr | 33.7 °C | +0.6 °C | 47 mm | -70 mm |
| May | 31.4 °C | +0.2 °C | 329 mm | +31 mm |
| Jun | 31.4 °C | +1.2 °C | 334 mm | -5 mm |
| Jul | 29.7 °C | +0.1 °C | 509 mm | +126 mm |
| Aug | 30.7 °C | +1.3 °C | 434 mm | +37 mm |
| Sep | 30.8 °C | +1.6 °C | 235 mm | -70 mm |
| Oct | 30.5 °C | +2.0 °C | 99 mm | -49 mm |
| Nov | 26.7 °C | -0.2 °C | 103 mm | +49 mm |
| Dec | 27.1 °C | +1.8 °C | 3 mm | -22 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Mae Chan?
Mae Chan has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.3 °C and it receives 2,152 mm of precipitation per year.
What is the hottest day ever recorded in Mae Chan?
The hottest day measured in Mae Chan between 1940 and 2025 was 8 May 2019, reaching 41.0 °C.
What is the coldest day in Mae Chan?
The coldest day measured in Mae Chan between 1940 and 2025 was 6 January 1974, at 3.2 °C.
Does it snow in Mae Chan?
Almost never: Mae Chan sees virtually no snow, with about 0 frost days per year.
Has the climate of Mae Chan warmed?
Yes: Mae Chan warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mae Chan?
The wettest day measured in Mae Chan between 1940 and 2025 was 1 September 1995, with 133 mm of rain in 24 hours.
What was the windiest day in Mae Chan?
The windiest day measured in Mae Chan between 1940 and 2025 was 9 November 1990, with winds reaching 22.9 km/h.
What is the warmest month in Mae Chan?
The warmest month in Mae Chan is April (26.0 °C on average); the coldest is December (18.4 °C).
How much does it rain in Mae Chan?
Mae Chan receives on average 2,152 mm of precipitation per year, spread over about 188 rainy days.
Is it sunny in Mae Chan?
Mae Chan gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Mae Chan?
Yes: Mae Chan has on average 193 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mae Chan?
In Mae Chan, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 11 May 2016, and the lowest was 0.7 °C on 5 January 1974.
Compare Mae Chan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mae Chan