Det Udom climate — normals and trends
Det Udom (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.8 °C and it receives 1,475 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 (29.4 °C on average) and the coldest is December (23.7 °C). Rainfall peaks in September.
Det Udom averages 0 frost days, 287 hot days (≥ 30 °C) and 177 rainy days per year.
Det Udom has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.6 °C (on 30 April 2024) and the coldest 8.5 °C (on 12 January 1955).
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
Det UdomUbon Ratchathani
- coords
- 14.91°, 105.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.8°C
Average daily high
31.8°C
Average daily low
22.9°C
Annual rainfall
1,475mm
Sunshine / day
10.0h
Mean relative humidity
73%
Average peak wind
13.3km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
287 d/yr
Rainy days (≥ 1 mm)
177 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.2 °C
Average feels-like low
26.0 °C
Average peak gust
30.4 km/h
Tropical nights (≥ 20 °C)
302 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.62 · 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
41.6 °C
30 April 2024
Coldest day
8.5 °C
12 January 1955
Wettest day
190 mm
21 September 1949
Windiest day
37.8 km/h
18 December 2022
Strongest gust
77.4 km/h
28 September 2022
Hottest feels-like
47.3 °C
8 April 2024
Coldest feels-like
5.4 °C
12 January 1955
Sunniest day
12.4 h
16 June 1948
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 | 30.4 °C | -0.3 °C | 0 mm | -4 mm |
| Feb | 33.7 °C | +1.0 °C | 1 mm | -12 mm |
| Mar | 34.5 °C | +0.1 °C | 29 mm | -12 mm |
| Apr | 36.1 °C | +1.4 °C | 39 mm | -46 mm |
| May | 34.1 °C | +0.7 °C | 197 mm | +27 mm |
| Jun | 32.5 °C | +0.3 °C | 211 mm | +8 mm |
| Jul | 31.6 °C | +0.1 °C | 266 mm | +33 mm |
| Aug | 32.0 °C | +1.0 °C | 204 mm | -59 mm |
| Sep | 31.1 °C | +0.5 °C | 341 mm | +52 mm |
| Oct | 31.5 °C | +1.0 °C | 200 mm | +70 mm |
| Nov | 29.8 °C | -0.4 °C | 127 mm | +88 mm |
| Dec | 31.4 °C | +1.7 °C | 1 mm | -6 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 Det Udom?
Det Udom has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.8 °C and it receives 1,475 mm of precipitation per year.
What is the hottest day ever recorded in Det Udom?
The hottest day measured in Det Udom between 1940 and 2025 was 30 April 2024, reaching 41.6 °C.
What is the coldest day in Det Udom?
The coldest day measured in Det Udom between 1940 and 2025 was 12 January 1955, at 8.5 °C.
Does it snow in Det Udom?
Almost never: Det Udom sees virtually no snow, with about 0 frost days per year.
Has the climate of Det Udom warmed?
Yes: Det Udom warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Det Udom?
The wettest day measured in Det Udom between 1940 and 2025 was 21 September 1949, with 190 mm of rain in 24 hours.
What was the windiest day in Det Udom?
The windiest day measured in Det Udom between 1940 and 2025 was 18 December 2022, with winds reaching 37.8 km/h.
What is the warmest month in Det Udom?
The warmest month in Det Udom is April (29.4 °C on average); the coldest is December (23.7 °C).
How much does it rain in Det Udom?
Det Udom receives on average 1,475 mm of precipitation per year, spread over about 177 rainy days.
Is it sunny in Det Udom?
Det Udom gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Det Udom?
Yes: Det Udom has on average 302 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Det Udom?
In Det Udom, between 1940 and 2025, the highest apparent temperature reached 47.3 °C on 8 April 2024, and the lowest was 5.4 °C on 12 January 1955.
Compare Det Udom with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Det Udom