Warichaphum climate — normals and trends
Warichaphum (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.9 °C and it receives 1,590 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 (28.5 °C on average) and the coldest is December (21.8 °C). Rainfall peaks in August.
Warichaphum averages 0 frost days, 232 hot days (≥ 30 °C) and 164 rainy days per year.
Warichaphum 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 41.9 °C (on 29 April 2024) and the coldest 4.0 °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
WarichaphumSakon Nakhon
- coords
- 17.29°, 103.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.9°C
Average daily high
30.7°C
Average daily low
22.0°C
Annual rainfall
1,590mm
Sunshine / day
9.7h
Mean relative humidity
74%
Average peak wind
12.7km/h
Seasonal range
6.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
232 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.7 °C
Average feels-like low
24.8 °C
Average peak gust
29.8 km/h
Tropical nights (≥ 20 °C)
268 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.58 · 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
41.9 °C
29 April 2024
Coldest day
4.0 °C
12 January 1955
Wettest day
149 mm
18 August 1991
Windiest day
38.3 km/h
23 August 1987
Strongest gust
78.5 km/h
23 August 1987
Hottest feels-like
46.9 °C
15 April 2023
Coldest feels-like
0.8 °C
12 January 1955
Sunniest day
12.7 h
12 July 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 | 27.9 °C | -0.5 °C | 0 mm | -9 mm |
| Feb | 31.4 °C | +0.7 °C | 2 mm | -17 mm |
| Mar | 33.0 °C | +0.1 °C | 22 mm | -26 mm |
| Apr | 34.2 °C | +0.5 °C | 86 mm | -8 mm |
| May | 32.6 °C | +0.2 °C | 256 mm | +42 mm |
| Jun | 32.2 °C | +0.6 °C | 186 mm | -45 mm |
| Jul | 30.6 °C | -0.5 °C | 371 mm | +118 mm |
| Aug | 31.7 °C | +1.1 °C | 332 mm | +12 mm |
| Sep | 31.2 °C | +0.7 °C | 306 mm | +24 mm |
| Oct | 31.5 °C | +1.4 °C | 51 mm | -46 mm |
| Nov | 28.4 °C | -0.8 °C | 59 mm | +39 mm |
| Dec | 29.9 °C | +2.2 °C | 3 mm | -2 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 Warichaphum?
Warichaphum has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 1,590 mm of precipitation per year.
What is the hottest day ever recorded in Warichaphum?
The hottest day measured in Warichaphum between 1940 and 2025 was 29 April 2024, reaching 41.9 °C.
What is the coldest day in Warichaphum?
The coldest day measured in Warichaphum between 1940 and 2025 was 12 January 1955, at 4.0 °C.
Does it snow in Warichaphum?
Almost never: Warichaphum sees virtually no snow, with about 0 frost days per year.
Has the climate of Warichaphum warmed?
Yes: Warichaphum warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Warichaphum?
The wettest day measured in Warichaphum between 1940 and 2025 was 18 August 1991, with 149 mm of rain in 24 hours.
What was the windiest day in Warichaphum?
The windiest day measured in Warichaphum between 1940 and 2025 was 23 August 1987, with winds reaching 38.3 km/h.
What is the warmest month in Warichaphum?
The warmest month in Warichaphum is April (28.5 °C on average); the coldest is December (21.8 °C).
How much does it rain in Warichaphum?
Warichaphum receives on average 1,590 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Warichaphum?
Warichaphum gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Warichaphum?
Yes: Warichaphum has on average 268 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Warichaphum?
In Warichaphum, between 1940 and 2025, the highest apparent temperature reached 46.9 °C on 15 April 2023, and the lowest was 0.8 °C on 12 January 1955.
Compare Warichaphum with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Warichaphum