Chok Chai climate — normals and trends
Chok Chai (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 955 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 (29.5 °C on average) and the coldest is December (23.5 °C). Rainfall peaks in September.
Chok Chai averages 0 frost days, 294 hot days (≥ 30 °C) and 151 rainy days per year.
Chok Chai has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.9 °C (on 27 April 2024) and the coldest 7.6 °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
Chok ChaiNakhon Ratchasima
- coords
- 14.73°, 102.17°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.1°C
Average daily high
32.5°C
Average daily low
22.9°C
Annual rainfall
955mm
Sunshine / day
10.1h
Mean relative humidity
70%
Average peak wind
13.2km/h
Seasonal range
6.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
294 d/yr
Rainy days (≥ 1 mm)
151 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.1 °C
Average feels-like low
25.9 °C
Average peak gust
31.6 km/h
Tropical nights (≥ 20 °C)
301 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.61 · 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
27 April 2024
Coldest day
7.6 °C
12 January 1955
Wettest day
178 mm
30 September 1957
Windiest day
35.3 km/h
3 November 2009
Strongest gust
75.6 km/h
22 July 2025
Hottest feels-like
47.3 °C
12 April 1952
Coldest feels-like
4.1 °C
12 January 1955
Sunniest day
12.7 h
19 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 | 30.3 °C | -0.4 °C | 0 mm | -6 mm |
| Feb | 33.8 °C | +0.6 °C | 3 mm | -10 mm |
| Mar | 33.7 °C | -1.4 °C | 87 mm | +49 mm |
| Apr | 35.8 °C | +0.1 °C | 62 mm | -5 mm |
| May | 33.1 °C | -1.2 °C | 195 mm | +88 mm |
| Jun | 34.2 °C | +0.3 °C | 75 mm | -14 mm |
| Jul | 33.2 °C | -0.1 °C | 95 mm | -11 mm |
| Aug | 33.6 °C | +0.9 °C | 159 mm | +32 mm |
| Sep | 31.4 °C | +0.1 °C | 217 mm | -6 mm |
| Oct | 31.1 °C | +0.7 °C | 136 mm | -7 mm |
| Nov | 28.7 °C | -1.4 °C | 105 mm | +70 mm |
| Dec | 30.4 °C | +0.9 °C | 9 mm | +4 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 Chok Chai?
Chok Chai has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 955 mm of precipitation per year.
What is the hottest day ever recorded in Chok Chai?
The hottest day measured in Chok Chai between 1940 and 2025 was 27 April 2024, reaching 41.9 °C.
What is the coldest day in Chok Chai?
The coldest day measured in Chok Chai between 1940 and 2025 was 12 January 1955, at 7.6 °C.
Does it snow in Chok Chai?
Almost never: Chok Chai sees virtually no snow, with about 0 frost days per year.
Has the climate of Chok Chai warmed?
Yes: Chok Chai warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chok Chai?
The wettest day measured in Chok Chai between 1940 and 2025 was 30 September 1957, with 178 mm of rain in 24 hours.
What was the windiest day in Chok Chai?
The windiest day measured in Chok Chai between 1940 and 2025 was 3 November 2009, with winds reaching 35.3 km/h.
What is the warmest month in Chok Chai?
The warmest month in Chok Chai is April (29.5 °C on average); the coldest is December (23.5 °C).
How much does it rain in Chok Chai?
Chok Chai receives on average 955 mm of precipitation per year, spread over about 151 rainy days.
Is it sunny in Chok Chai?
Chok Chai gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Chok Chai?
Yes: Chok Chai has on average 301 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chok Chai?
In Chok Chai, between 1940 and 2025, the highest apparent temperature reached 47.3 °C on 12 April 1952, and the lowest was 4.1 °C on 12 January 1955.
Compare Chok Chai with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chok Chai