Chom Bueng climate — normals and trends

Q: What is the climate of Chom Bueng?

Chom Bueng has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 1,336 mm of precipitation per year.

Q: What is the hottest day ever recorded in Chom Bueng?

The hottest day measured in Chom Bueng between 1940 and 2025 was 14 April 1998, reaching 39.8 °C.

Q: What is the coldest day in Chom Bueng?

The coldest day measured in Chom Bueng between 1940 and 2025 was 25 December 1999, at 10.2 °C.

Q: Does it snow in Chom Bueng?

Almost never: Chom Bueng sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Chom Bueng warmed?

Yes: Chom Bueng warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chom Bueng?

The wettest day measured in Chom Bueng between 1940 and 2025 was 26 May 1964, with 211 mm of rain in 24 hours.

Q: What was the windiest day in Chom Bueng?

The windiest day measured in Chom Bueng between 1940 and 2025 was 13 July 1991, with winds reaching 27.0 km/h.

Q: What is the warmest month in Chom Bueng?

The warmest month in Chom Bueng is April (28.1 °C on average); the coldest is December (23.4 °C).

Q: How much does it rain in Chom Bueng?

Chom Bueng receives on average 1,336 mm of precipitation per year, spread over about 188 rainy days.

Q: Is it sunny in Chom Bueng?

Chom Bueng gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Chom Bueng (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.9 °C and it receives 1,336 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 (28.1 °C on average) and the coldest is December (23.4 °C). Rainfall peaks in September.

Chom Bueng averages 0 frost days, 218 hot days (≥ 30 °C) and 188 rainy days per year.

Chom Bueng 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 39.8 °C (on 14 April 1998) and the coldest 10.2 °C (on 25 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

Chom BuengRatchaburi

coords: 13.62°, 99.59°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

25.9°C

Average daily high

30.6°C

Average daily low

22.3°C

Annual rainfall

1,336mm

Sunshine / day

9.6h

Mean relative humidity

76%

Average peak wind

11.6km/h

Seasonal range

4.7°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

218 d/yr

Rainy days (≥ 1 mm)

188 d/yr

Annual snowfall

0.0 cm

Average feels-like high

34.9 °C

Average feels-like low

25.7 °C

Average peak gust

30.3 km/h

Tropical nights (≥ 20 °C)

309 d/yr

Solar radiation

18.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.0 °C

since 1940

+0.2 °C per decade · r² = 0.68 · p = < 0.001

19402025

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

39.8 °C

14 April 1998

Coldest day

10.2 °C

25 December 1999

Wettest day

211 mm

26 May 1964

Windiest day

27.0 km/h

13 July 1991

Strongest gust

67.3 km/h

9 August 2007

Hottest feels-like

45.4 °C

13 May 2016

Coldest feels-like

7.5 °C

25 December 1999

Sunniest day

12.8 h

25 June 2004

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.1 °C22 April 2025	14.6 °C29 November 2025	26.3 °C	1,409 mm	213
2024	37.6 °C30 April 2024	16.8 °C21 December 2024	27.3 °C	1,234 mm	288
2023	36.9 °C21 April 2023	16.2 °C2 January 2023	26.9 °C	1,121 mm	268
2022	35.7 °C15 March 2022	16.9 °C15 December 2022	26.4 °C	1,551 mm	248
2021	35.6 °C14 May 2021	14.1 °C13 January 2021	26.3 °C	1,494 mm	238
2020	37.2 °C16 May 2020	16.0 °C28 January 2020	27.0 °C	1,220 mm	281
2019	37.7 °C31 March 2019	15.1 °C7 December 2019	26.9 °C	1,241 mm	273
2018	37.7 °C29 March 2018	16.6 °C14 January 2018	26.6 °C	1,526 mm	259
2017	37.6 °C26 April 2017	14.2 °C20 December 2017	26.8 °C	1,356 mm	271
2016	38.6 °C13 May 2016	13.4 °C9 February 2016	27.2 °C	1,075 mm	296
2015	37.0 °C21 April 2015	15.0 °C17 January 2015	26.8 °C	1,055 mm	288
2014	36.6 °C6 May 2014	11.9 °C23 January 2014	26.3 °C	1,340 mm	254
2013	37.8 °C22 April 2013	12.7 °C29 December 2013	26.2 °C	1,499 mm	237
2012	36.0 °C29 April 2012	18.6 °C9 January 2012	26.5 °C	1,408 mm	263
2011	35.7 °C16 April 2011	15.3 °C13 December 2011	25.8 °C	1,284 mm	198
2010	37.1 °C15 May 2010	17.0 °C18 December 2010	27.0 °C	1,180 mm	274
2009	36.0 °C25 April 2009	12.4 °C12 January 2009	26.2 °C	1,196 mm	256
2008	34.9 °C21 March 2008	15.8 °C21 December 2008	25.8 °C	1,328 mm	216
2007	38.2 °C1 April 2007	15.0 °C30 November 2007	26.8 °C	1,236 mm	262
2006	36.2 °C12 April 2006	14.2 °C24 December 2006	26.7 °C	1,286 mm	267
2005	36.9 °C10 April 2005	15.1 °C2 January 2005	26.8 °C	1,454 mm	245
2004	38.8 °C15 April 2004	16.3 °C16 February 2004	26.8 °C	857 mm	290
2003	38.3 °C8 May 2003	15.5 °C16 December 2003	26.6 °C	1,272 mm	261
2002	37.7 °C11 April 2002	16.8 °C4 January 2002	26.8 °C	1,286 mm	270
2001	38.2 °C23 April 2001	15.4 °C24 December 2001	26.5 °C	1,280 mm	246
2000	35.7 °C20 March 2000	15.4 °C2 February 2000	26.2 °C	1,235 mm	261
1999	37.8 °C11 March 1999	10.2 °C25 December 1999	26.0 °C	1,602 mm	226
1998	39.8 °C14 April 1998	16.3 °C16 January 1998	27.5 °C	1,017 mm	293
1997	38.5 °C8 May 1997	15.2 °C4 January 1997	26.7 °C	1,148 mm	273
1996	38.5 °C31 March 1996	12.2 °C1 January 1996	26.3 °C	1,754 mm	253
1995	37.6 °C25 March 1995	13.0 °C30 December 1995	26.5 °C	1,317 mm	260
1994	38.1 °C12 April 1994	15.9 °C29 December 1994	26.6 °C	1,174 mm	268
1993	37.4 °C5 May 1993	13.0 °C31 January 1993	26.2 °C	1,031 mm	264
1992	38.3 °C21 April 1992	13.1 °C20 January 1992	26.2 °C	1,038 mm	229
1991	38.4 °C19 May 1991	16.4 °C21 December 1991	26.6 °C	1,230 mm	241
1990	37.0 °C23 April 1990	15.0 °C6 December 1990	26.8 °C	832 mm	301
1989	37.1 °C19 April 1989	15.7 °C4 December 1989	26.2 °C	1,123 mm	229
1988	37.0 °C22 March 1988	14.6 °C14 December 1988	26.3 °C	1,319 mm	250
1987	36.8 °C11 April 1987	14.3 °C9 December 1987	26.3 °C	1,000 mm	243
1986	35.6 °C17 March 1986	13.1 °C7 January 1986	25.5 °C	1,079 mm	191
1985	36.1 °C14 April 1985	14.1 °C18 December 1985	25.6 °C	1,277 mm	167
1984	35.1 °C7 April 1984	12.5 °C10 January 1984	25.6 °C	933 mm	176
1983	36.4 °C14 April 1983	12.5 °C25 January 1983	25.8 °C	1,124 mm	204
1982	35.6 °C29 April 1982	11.9 °C29 December 1982	25.5 °C	1,186 mm	163
1981	36.3 °C28 April 1981	13.3 °C14 January 1981	25.5 °C	1,462 mm	178
1980	38.3 °C5 April 1980	14.9 °C29 January 1980	26.3 °C	1,152 mm	226
1979	38.2 °C10 May 1979	15.0 °C27 December 1979	26.5 °C	933 mm	282
1978	35.2 °C2 May 1978	14.3 °C16 December 1978	25.9 °C	1,432 mm	211
1977	35.2 °C13 April 1977	14.8 °C6 March 1977	26.0 °C	826 mm	249
1976	36.6 °C18 April 1976	11.2 °C1 January 1976	25.2 °C	1,515 mm	178
1975	36.2 °C17 April 1975	10.6 °C31 December 1975	25.2 °C	1,762 mm	185
1974	35.1 °C9 May 1974	11.9 °C4 January 1974	25.1 °C	1,736 mm	189
1973	37.8 °C23 April 1973	11.5 °C27 December 1973	25.8 °C	1,318 mm	209
1972	35.5 °C5 May 1972	11.7 °C16 January 1972	25.4 °C	1,556 mm	204
1971	36.3 °C8 April 1971	12.5 °C17 November 1971	25.0 °C	1,415 mm	176
1970	37.7 °C9 May 1970	14.5 °C18 December 1970	25.8 °C	1,429 mm	211
1969	38.1 °C4 April 1969	13.9 °C5 December 1969	26.2 °C	1,319 mm	221
1968	36.0 °C17 April 1968	13.4 °C5 January 1968	25.7 °C	1,243 mm	224
1967	36.9 °C12 April 1967	12.5 °C17 January 1967	25.4 °C	1,282 mm	180
1966	35.2 °C25 March 1966	14.1 °C2 January 1966	25.1 °C	1,463 mm	135
1965	36.7 °C26 March 1965	13.4 °C18 January 1965	25.4 °C	1,587 mm	184
1964	36.1 °C21 April 1964	13.3 °C19 December 1964	25.3 °C	1,543 mm	202
1963	36.0 °C17 May 1963	10.6 °C16 January 1963	25.1 °C	1,580 mm	143
1962	35.2 °C4 April 1962	13.3 °C6 December 1962	25.1 °C	1,418 mm	169
1961	36.0 °C25 April 1961	11.1 °C19 January 1961	25.4 °C	1,411 mm	156
1960	36.3 °C30 March 1960	12.2 °C4 January 1960	25.8 °C	1,265 mm	215
1959	37.5 °C18 June 1959	14.6 °C1 January 1959	25.9 °C	1,214 mm	205
1958	37.4 °C26 March 1958	14.1 °C11 February 1958	25.8 °C	991 mm	187
1957	36.9 °C23 April 1957	11.4 °C6 February 1957	25.6 °C	1,726 mm	202
1956	36.0 °C15 March 1956	12.9 °C17 January 1956	25.1 °C	1,289 mm	169
1955	36.5 °C18 April 1955	10.5 °C12 January 1955	25.1 °C	1,562 mm	191
1954	37.4 °C4 April 1954	12.0 °C17 December 1954	25.7 °C	1,057 mm	229
1953	34.2 °C17 April 1953	13.6 °C13 December 1953	24.5 °C	2,475 mm	120
1952	37.6 °C23 April 1952	12.5 °C12 December 1952	25.3 °C	1,813 mm	179
1951	37.8 °C6 April 1951	14.9 °C2 January 1951	25.6 °C	1,239 mm	197
1950	36.6 °C8 March 1950	12.6 °C3 January 1950	25.3 °C	1,283 mm	189
1949	36.0 °C24 February 1949	12.7 °C17 January 1949	25.3 °C	1,154 mm	195
1948	36.6 °C14 March 1948	13.8 °C3 January 1948	25.1 °C	1,440 mm	171
1947	36.5 °C8 March 1947	14.5 °C30 December 1947	25.7 °C	1,116 mm	212
1946	37.1 °C27 March 1946	13.5 °C9 January 1946	25.2 °C	1,186 mm	167
1945	35.7 °C1 April 1945	13.3 °C31 December 1945	24.9 °C	1,585 mm	133
1944	36.6 °C10 April 1944	13.0 °C21 December 1944	25.2 °C	1,682 mm	167
1943	36.5 °C24 March 1943	13.9 °C13 January 1943	24.5 °C	1,567 mm	111
1942	35.9 °C25 February 1942	13.4 °C18 December 1942	24.8 °C	1,359 mm	151
1941	37.7 °C1 March 1941	14.0 °C24 January 1941	25.1 °C	2,073 mm	137
1940	38.0 °C11 March 1940	11.9 °C4 January 1940	24.7 °C	1,864 mm	137

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?

Year

Across the whole year

Average daily high

30.6 °C

0.0 °C

Hot days (≥ 30 °C)

213 d/yr

-5

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1409 mm

+73 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.4 °C	-1.2 °C	1 mm	-14 mm
Feb	31.1 °C	-0.7 °C	39 mm	+14 mm
Mar	32.6 °C	-0.8 °C	41 mm	-3 mm
Apr	33.9 °C	0.0 °C	75 mm	-9 mm
May	32.0 °C	-0.3 °C	228 mm	+71 mm
Jun	31.1 °C	+0.3 °C	129 mm	-19 mm
Jul	30.5 °C	+0.3 °C	149 mm	-26 mm
Aug	31.2 °C	+1.3 °C	160 mm	-24 mm
Sep	30.4 °C	+0.5 °C	314 mm	+96 mm
Oct	29.8 °C	+0.6 °C	158 mm	-48 mm
Nov	28.0 °C	-0.5 °C	104 mm	+36 mm
Dec	28.8 °C	+0.6 °C	11 mm	-3 mm

The year's extremes

Hottest day

36.1 °C

22 Apr 2025

Coldest day

14.6 °C

29 Nov 2025

Wettest day

62.8 mm

8 Sep 2025

Windiest day

20.9 km/h

29 Jul 2025

Strongest gust

53.6 km/h

29 Jul 2025

Hottest feels-like

43.5 °C

24 Apr 2025

Coldest feels-like

13.8 °C

29 Nov 2025

Sunniest day

12.6 h

7 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Chom Bueng?

Chom Bueng has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 1,336 mm of precipitation per year.

What is the hottest day ever recorded in Chom Bueng?

The hottest day measured in Chom Bueng between 1940 and 2025 was 14 April 1998, reaching 39.8 °C.

What is the coldest day in Chom Bueng?

The coldest day measured in Chom Bueng between 1940 and 2025 was 25 December 1999, at 10.2 °C.

Does it snow in Chom Bueng?

Almost never: Chom Bueng sees virtually no snow, with about 0 frost days per year.

Has the climate of Chom Bueng warmed?

Yes: Chom Bueng warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chom Bueng?

The wettest day measured in Chom Bueng between 1940 and 2025 was 26 May 1964, with 211 mm of rain in 24 hours.

What was the windiest day in Chom Bueng?

The windiest day measured in Chom Bueng between 1940 and 2025 was 13 July 1991, with winds reaching 27.0 km/h.

What is the warmest month in Chom Bueng?

The warmest month in Chom Bueng is April (28.1 °C on average); the coldest is December (23.4 °C).

How much does it rain in Chom Bueng?

Chom Bueng receives on average 1,336 mm of precipitation per year, spread over about 188 rainy days.

Is it sunny in Chom Bueng?

Chom Bueng gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Are there tropical nights in Chom Bueng?

Yes: Chom Bueng has on average 309 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chom Bueng?

In Chom Bueng, between 1940 and 2025, the highest apparent temperature reached 45.4 °C on 13 May 2016, and the lowest was 7.5 °C on 25 December 1999.

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