Tachilek climate — normals and trends
Tachilek (Myanmar) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.8 °C and it receives 2,223 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 May (26.6 °C on average) and the coldest is January (18.8 °C). Rainfall peaks in August.
Tachilek averages 0 frost days, 174 hot days (≥ 30 °C) and 186 rainy days per year.
Tachilek has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.8 °C (on 29 April 1960) and the coldest 3.3 °C (on 27 December 1999).
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
TachilekShan State
- coords
- 20.45°, 99.88°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.8°C
Average daily high
29.8°C
Average daily low
19.3°C
Annual rainfall
2,223mm
Sunshine / day
9.3h
Mean relative humidity
79%
Average peak wind
6.9km/h
Seasonal range
7.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
174 d/yr
Rainy days (≥ 1 mm)
186 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.4 °C
Average feels-like low
22.2 °C
Average peak gust
25.6 km/h
Tropical nights (≥ 20 °C)
204 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.80 · 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
41.8 °C
29 April 1960
Coldest day
3.3 °C
27 December 1999
Wettest day
186 mm
12 September 1970
Windiest day
21.4 km/h
9 November 1990
Strongest gust
65.9 km/h
24 August 1987
Hottest feels-like
45.3 °C
11 May 2016
Coldest feels-like
0.9 °C
27 December 1999
Sunniest day
13.0 h
13 June 1943
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 | 26.9 °C | +0.2 °C | 2 mm | -24 mm |
| Feb | 31.2 °C | +1.3 °C | 6 mm | -14 mm |
| Mar | 33.7 °C | +1.1 °C | 9 mm | -38 mm |
| Apr | 34.3 °C | +0.8 °C | 35 mm | -73 mm |
| May | 32.1 °C | +0.3 °C | 322 mm | +34 mm |
| Jun | 32.1 °C | +1.4 °C | 390 mm | +27 mm |
| Jul | 30.0 °C | 0.0 °C | 544 mm | +130 mm |
| Aug | 31.3 °C | +1.4 °C | 438 mm | +13 mm |
| Sep | 31.6 °C | +1.7 °C | 266 mm | -43 mm |
| Oct | 31.3 °C | +2.1 °C | 121 mm | -22 mm |
| Nov | 27.4 °C | -0.2 °C | 106 mm | +53 mm |
| Dec | 27.4 °C | +1.7 °C | 3 mm | -25 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 Tachilek?
Tachilek has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 2,223 mm of precipitation per year.
What is the hottest day ever recorded in Tachilek?
The hottest day measured in Tachilek between 1940 and 2025 was 29 April 1960, reaching 41.8 °C.
What is the coldest day in Tachilek?
The coldest day measured in Tachilek between 1940 and 2025 was 27 December 1999, at 3.3 °C.
Does it snow in Tachilek?
Almost never: Tachilek sees virtually no snow, with about 0 frost days per year.
Has the climate of Tachilek warmed?
Yes: Tachilek warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tachilek?
The wettest day measured in Tachilek between 1940 and 2025 was 12 September 1970, with 186 mm of rain in 24 hours.
What was the windiest day in Tachilek?
The windiest day measured in Tachilek between 1940 and 2025 was 9 November 1990, with winds reaching 21.4 km/h.
What is the warmest month in Tachilek?
The warmest month in Tachilek is May (26.6 °C on average); the coldest is January (18.8 °C).
How much does it rain in Tachilek?
Tachilek receives on average 2,223 mm of precipitation per year, spread over about 186 rainy days.
Is it sunny in Tachilek?
Tachilek gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Tachilek?
Yes: Tachilek has on average 204 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tachilek?
In Tachilek, between 1940 and 2025, the highest apparent temperature reached 45.3 °C on 11 May 2016, and the lowest was 0.9 °C on 27 December 1999.
Compare Tachilek with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tachilek