Chainat climate — normals and trends

Q: What is the climate of Chainat?

Chainat has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.3 °C and it receives 1,230 mm of precipitation per year.

Q: What is the hottest day ever recorded in Chainat?

The hottest day measured in Chainat between 1940 and 2025 was 11 May 2016, reaching 43.6 °C.

Q: What is the coldest day in Chainat?

The coldest day measured in Chainat between 1940 and 2025 was 25 December 1999, at 9.0 °C.

Q: Does it snow in Chainat?

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

Q: Has the climate of Chainat warmed?

Yes: Chainat warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chainat?

The wettest day measured in Chainat between 1940 and 2025 was 30 November 1950, with 120 mm of rain in 24 hours.

Q: What was the windiest day in Chainat?

The windiest day measured in Chainat between 1940 and 2025 was 10 May 1986, with winds reaching 28.6 km/h.

Q: What is the warmest month in Chainat?

The warmest month in Chainat is April (31.2 °C on average); the coldest is December (24.8 °C).

Q: How much does it rain in Chainat?

Chainat receives on average 1,230 mm of precipitation per year, spread over about 167 rainy days.

Q: Is it sunny in Chainat?

Chainat gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Chainat (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.3 °C and it receives 1,230 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 (31.2 °C on average) and the coldest is December (24.8 °C). Rainfall peaks in September.

Chainat averages 0 frost days, 326 hot days (≥ 30 °C) and 167 rainy days per year.

Chainat has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 43.6 °C (on 11 May 2016) and the coldest 9.0 °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

ChainatChai Nat

coords: 15.19°, 100.12°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

28.3°C

Average daily high

33.7°C

Average daily low

24.2°C

Annual rainfall

1,230mm

Sunshine / day

9.9h

Mean relative humidity

69%

Average peak wind

12.1km/h

Seasonal range

6.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

326 d/yr

Rainy days (≥ 1 mm)

167 d/yr

Annual snowfall

0.0 cm

Average feels-like high

38.0 °C

Average feels-like low

27.8 °C

Average peak gust

28.7 km/h

Tropical nights (≥ 20 °C)

327 d/yr

Solar radiation

18.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.3 °C per decade · r² = 0.65 · 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

43.6 °C

11 May 2016

Coldest day

9.0 °C

25 December 1999

Wettest day

120 mm

30 November 1950

Windiest day

28.6 km/h

10 May 1986

Strongest gust

70.2 km/h

8 August 2008

Hottest feels-like

48.9 °C

11 May 2016

Coldest feels-like

7.0 °C

12 January 1955

Sunniest day

12.8 h

24 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	40.3 °C25 April 2025	15.0 °C13 January 2025	28.6 °C	1,426 mm	329
2024	43.5 °C27 April 2024	17.2 °C21 December 2024	29.8 °C	1,171 mm	351
2023	41.7 °C7 May 2023	14.8 °C31 January 2023	29.4 °C	1,051 mm	346
2022	40.5 °C27 April 2022	16.8 °C20 December 2022	28.6 °C	1,487 mm	337
2021	39.5 °C1 June 2021	13.8 °C20 January 2021	28.7 °C	1,440 mm	335
2020	42.4 °C21 April 2020	17.3 °C23 December 2020	29.6 °C	1,148 mm	340
2019	42.0 °C1 May 2019	15.4 °C7 December 2019	29.5 °C	1,108 mm	352
2018	40.1 °C15 April 2018	17.3 °C14 January 2018	28.9 °C	1,166 mm	340
2017	40.1 °C24 April 2017	14.1 °C21 December 2017	28.8 °C	1,367 mm	340
2016	43.6 °C11 May 2016	12.4 °C9 February 2016	29.5 °C	1,125 mm	343
2015	41.2 °C11 July 2015	15.7 °C16 January 2015	29.4 °C	1,008 mm	343
2014	40.2 °C22 April 2014	11.1 °C24 January 2014	28.9 °C	1,017 mm	344
2013	40.7 °C2 May 2013	14.0 °C29 December 2013	28.6 °C	1,281 mm	332
2012	40.3 °C28 April 2012	19.2 °C10 January 2012	29.1 °C	1,182 mm	360
2011	37.7 °C18 April 2011	15.8 °C13 December 2011	27.8 °C	1,540 mm	325
2010	41.3 °C10 May 2010	17.0 °C19 January 2010	29.3 °C	1,223 mm	339
2009	40.4 °C23 April 2009	12.0 °C12 January 2009	28.5 °C	1,248 mm	340
2008	39.2 °C22 April 2008	14.6 °C3 January 2008	28.3 °C	1,398 mm	325
2007	41.7 °C1 April 2007	13.8 °C4 February 2007	29.0 °C	1,435 mm	340
2006	40.8 °C13 March 2006	13.7 °C24 December 2006	29.1 °C	1,188 mm	346
2005	41.2 °C28 April 2005	14.1 °C3 January 2005	29.4 °C	1,137 mm	339
2004	43.0 °C15 April 2004	16.8 °C15 December 2004	29.4 °C	825 mm	356
2003	41.1 °C7 May 2003	15.8 °C22 December 2003	28.8 °C	1,153 mm	351
2002	40.9 °C10 April 2002	16.9 °C4 January 2002	29.2 °C	1,231 mm	347
2001	41.9 °C23 April 2001	16.5 °C22 November 2001	29.0 °C	1,158 mm	334
2000	40.8 °C4 April 2000	14.2 °C3 February 2000	28.2 °C	1,354 mm	340
1999	40.4 °C17 March 1999	9.0 °C25 December 1999	28.2 °C	1,537 mm	319
1998	42.8 °C16 April 1998	17.0 °C16 January 1998	29.8 °C	1,029 mm	349
1997	41.1 °C14 June 1997	15.7 °C13 January 1997	29.2 °C	1,004 mm	353
1996	40.5 °C22 March 1996	11.5 °C2 January 1996	28.1 °C	1,561 mm	329
1995	42.8 °C23 April 1995	12.9 °C31 December 1995	28.8 °C	1,382 mm	334
1994	42.1 °C12 April 1994	16.2 °C30 December 1994	28.6 °C	1,340 mm	345
1993	41.8 °C3 May 1993	12.2 °C28 December 1993	28.8 °C	863 mm	342
1992	43.4 °C14 April 1992	13.7 °C2 December 1992	28.7 °C	1,133 mm	323
1991	41.8 °C3 May 1991	17.1 °C21 November 1991	28.9 °C	1,180 mm	352
1990	41.4 °C23 April 1990	14.5 °C6 December 1990	29.2 °C	1,065 mm	348
1989	41.1 °C5 May 1989	15.0 °C4 December 1989	28.7 °C	1,013 mm	341
1988	41.0 °C5 April 1988	15.1 °C14 December 1988	28.5 °C	1,407 mm	323
1987	41.1 °C3 April 1987	13.8 °C9 December 1987	29.1 °C	1,019 mm	327
1986	40.1 °C3 April 1986	12.7 °C8 January 1986	28.3 °C	1,061 mm	334
1985	41.0 °C13 April 1985	13.4 °C18 December 1985	28.2 °C	1,134 mm	333
1984	40.3 °C9 April 1984	11.6 °C10 January 1984	28.1 °C	985 mm	335
1983	43.1 °C14 April 1983	14.1 °C29 November 1983	28.9 °C	1,304 mm	310
1982	40.6 °C30 April 1982	11.4 °C23 December 1982	28.6 °C	943 mm	336
1981	40.2 °C6 April 1981	13.0 °C19 January 1981	28.2 °C	1,063 mm	327
1980	42.8 °C2 May 1980	15.2 °C25 December 1980	28.8 °C	1,158 mm	341
1979	40.9 °C15 May 1979	15.1 °C28 December 1979	28.9 °C	1,098 mm	345
1978	42.3 °C30 April 1978	13.6 °C16 December 1978	28.6 °C	1,270 mm	336
1977	41.0 °C18 April 1977	15.5 °C18 November 1977	28.3 °C	1,031 mm	335
1976	41.7 °C17 April 1976	10.1 °C1 January 1976	27.6 °C	1,747 mm	316
1975	41.4 °C29 April 1975	9.2 °C31 December 1975	27.7 °C	1,486 mm	309
1974	41.1 °C21 April 1974	10.1 °C2 January 1974	27.8 °C	1,554 mm	313
1973	41.6 °C23 April 1973	10.6 °C27 December 1973	28.3 °C	1,225 mm	324
1972	43.1 °C5 May 1972	12.8 °C16 January 1972	28.3 °C	1,704 mm	329
1971	41.1 °C8 April 1971	13.1 °C6 January 1971	27.6 °C	1,194 mm	312
1970	41.8 °C9 May 1970	16.4 °C4 January 1970	28.3 °C	1,286 mm	330
1969	41.9 °C24 April 1969	13.4 °C12 December 1969	28.7 °C	1,199 mm	318
1968	42.1 °C3 April 1968	13.1 °C6 January 1968	28.5 °C	1,105 mm	354
1967	41.6 °C31 March 1967	13.0 °C17 January 1967	27.9 °C	1,074 mm	324
1966	39.5 °C3 May 1966	14.8 °C2 January 1966	27.5 °C	1,462 mm	286
1965	40.3 °C2 May 1965	12.5 °C19 January 1965	27.9 °C	1,361 mm	336
1964	40.8 °C7 April 1964	12.8 °C19 December 1964	27.7 °C	1,385 mm	300
1963	42.4 °C16 May 1963	10.5 °C17 January 1963	27.7 °C	1,357 mm	298
1962	41.2 °C7 April 1962	12.6 °C6 December 1962	27.9 °C	1,108 mm	319
1961	39.9 °C25 March 1961	10.9 °C19 January 1961	27.8 °C	1,156 mm	331
1960	42.4 °C28 April 1960	11.1 °C4 January 1960	28.8 °C	934 mm	338
1959	41.0 °C18 June 1959	15.3 °C1 January 1959	28.3 °C	1,084 mm	332
1958	40.8 °C25 March 1958	14.9 °C7 January 1958	28.0 °C	973 mm	297
1957	40.8 °C15 May 1957	12.3 °C6 February 1957	27.7 °C	1,418 mm	328
1956	40.2 °C26 March 1956	12.0 °C17 January 1956	27.2 °C	1,239 mm	303
1955	39.8 °C18 April 1955	9.5 °C13 January 1955	27.0 °C	1,289 mm	303
1954	40.3 °C18 April 1954	11.8 °C17 December 1954	27.6 °C	990 mm	326
1953	36.6 °C15 April 1953	13.7 °C13 December 1953	26.2 °C	2,223 mm	248
1952	40.8 °C24 April 1952	12.3 °C12 December 1952	27.5 °C	1,487 mm	298
1951	41.1 °C9 April 1951	14.6 °C2 January 1951	27.9 °C	982 mm	305
1950	40.2 °C23 April 1950	13.0 °C2 January 1950	27.5 °C	1,350 mm	303
1949	38.7 °C14 May 1949	12.8 °C18 January 1949	27.6 °C	862 mm	321
1948	38.7 °C19 March 1948	13.5 °C3 January 1948	27.4 °C	1,292 mm	300
1947	39.4 °C7 March 1947	14.6 °C30 December 1947	27.9 °C	1,054 mm	333
1946	40.0 °C28 March 1946	13.7 °C9 January 1946	27.6 °C	974 mm	325
1945	38.9 °C1 April 1945	14.1 °C19 January 1945	27.1 °C	1,198 mm	307
1944	40.7 °C4 May 1944	12.7 °C22 December 1944	27.4 °C	1,386 mm	294
1943	39.0 °C5 April 1943	13.6 °C14 January 1943	26.7 °C	1,234 mm	273
1942	38.4 °C20 April 1942	12.8 °C16 December 1942	26.8 °C	1,313 mm	264
1941	39.6 °C4 May 1941	16.6 °C24 January 1941	27.2 °C	1,254 mm	255
1940	38.6 °C11 March 1940	11.6 °C1 January 1940	26.6 °C	1,429 mm	251

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

33.8 °C

+0.1 °C

Hot days (≥ 30 °C)

329 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1426 mm

+196 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.3 °C	-0.8 °C	0 mm	-12 mm
Feb	34.2 °C	-0.4 °C	31 mm	+13 mm
Mar	36.9 °C	+0.3 °C	26 mm	-16 mm
Apr	37.6 °C	+0.3 °C	91 mm	+16 mm
May	34.9 °C	-0.8 °C	245 mm	+99 mm
Jun	35.0 °C	+0.4 °C	126 mm	-1 mm
Jul	34.1 °C	+0.1 °C	118 mm	-16 mm
Aug	35.1 °C	+1.7 °C	157 mm	-8 mm
Sep	33.1 °C	+0.5 °C	294 mm	+25 mm
Oct	32.6 °C	+0.9 °C	163 mm	-24 mm
Nov	30.0 °C	-1.2 °C	167 mm	+120 mm
Dec	31.2 °C	+0.5 °C	8 mm	-1 mm

The year's extremes

Hottest day

40.3 °C

25 Apr 2025

Coldest day

15.0 °C

13 Jan 2025

Wettest day

41.7 mm

2 Nov 2025

Windiest day

23.6 km/h

27 Jan 2025

Strongest gust

56.5 km/h

24 Jul 2025

Hottest feels-like

47.3 °C

25 Apr 2025

Coldest feels-like

14.4 °C

13 Jan 2025

Sunniest day

12.8 h

24 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 Chainat?

Chainat has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.3 °C and it receives 1,230 mm of precipitation per year.

What is the hottest day ever recorded in Chainat?

The hottest day measured in Chainat between 1940 and 2025 was 11 May 2016, reaching 43.6 °C.

What is the coldest day in Chainat?

The coldest day measured in Chainat between 1940 and 2025 was 25 December 1999, at 9.0 °C.

Does it snow in Chainat?

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

Has the climate of Chainat warmed?

Yes: Chainat warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chainat?

The wettest day measured in Chainat between 1940 and 2025 was 30 November 1950, with 120 mm of rain in 24 hours.

What was the windiest day in Chainat?

The windiest day measured in Chainat between 1940 and 2025 was 10 May 1986, with winds reaching 28.6 km/h.

What is the warmest month in Chainat?

The warmest month in Chainat is April (31.2 °C on average); the coldest is December (24.8 °C).

How much does it rain in Chainat?

Chainat receives on average 1,230 mm of precipitation per year, spread over about 167 rainy days.

Is it sunny in Chainat?

Chainat gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Are there tropical nights in Chainat?

Yes: Chainat has on average 327 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chainat?

In Chainat, between 1940 and 2025, the highest apparent temperature reached 48.9 °C on 11 May 2016, and the lowest was 7.0 °C on 12 January 1955.

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