Khon Kaen climate — normals and trends

Q: What is the climate of Khon Kaen?

Khon Kaen has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,176 mm of precipitation per year.

Q: What is the hottest day ever recorded in Khon Kaen?

The hottest day measured in Khon Kaen between 1940 and 2025 was 17 April 2016, reaching 43.5 °C.

Q: What is the coldest day in Khon Kaen?

The coldest day measured in Khon Kaen between 1940 and 2025 was 12 January 1955, at 5.3 °C.

Q: Does it snow in Khon Kaen?

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

Q: Has the climate of Khon Kaen warmed?

Yes: Khon Kaen warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Khon Kaen?

The wettest day measured in Khon Kaen between 1940 and 2025 was 17 September 1962, with 155 mm of rain in 24 hours.

Q: What was the windiest day in Khon Kaen?

The windiest day measured in Khon Kaen between 1940 and 2025 was 26 October 1943, with winds reaching 29.9 km/h.

Q: What is the warmest month in Khon Kaen?

The warmest month in Khon Kaen is April (29.9 °C on average); the coldest is December (22.9 °C).

Q: How much does it rain in Khon Kaen?

Khon Kaen receives on average 1,176 mm of precipitation per year, spread over about 148 rainy days.

Q: Is it sunny in Khon Kaen?

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

Khon Kaen (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,176 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 (29.9 °C on average) and the coldest is December (22.9 °C). Rainfall peaks in September.

Khon Kaen averages 0 frost days, 284 hot days (≥ 30 °C) and 148 rainy days per year.

Khon Kaen 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 43.5 °C (on 17 April 2016) and the coldest 5.3 °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

Khon KaenKhon Kaen

coords: 16.45°, 102.83°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

27.0°C

Average daily high

32.2°C

Average daily low

22.8°C

Annual rainfall

1,176mm

Sunshine / day

9.9h

Mean relative humidity

70%

Average peak wind

12.4km/h

Seasonal range

7.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

284 d/yr

Rainy days (≥ 1 mm)

148 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.0 °C

Average feels-like low

25.8 °C

Average peak gust

29.1 km/h

Tropical nights (≥ 20 °C)

287 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 = 0.60 · 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

43.5 °C

17 April 2016

Coldest day

5.3 °C

12 January 1955

Wettest day

155 mm

17 September 1962

Windiest day

29.9 km/h

26 October 1943

Strongest gust

69.1 km/h

3 October 2010

Hottest feels-like

49.1 °C

21 March 1953

Coldest feels-like

2.3 °C

12 January 1955

Sunniest day

12.7 h

19 July 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	40.0 °C29 March 2025	9.7 °C13 January 2025	27.0 °C	1,282 mm	281
2024	43.1 °C29 April 2024	14.2 °C23 December 2024	28.3 °C	1,102 mm	321
2023	41.6 °C6 May 2023	11.3 °C30 January 2023	28.1 °C	1,079 mm	318
2022	38.8 °C27 April 2022	13.1 °C19 December 2022	27.3 °C	1,427 mm	304
2021	38.4 °C19 March 2021	11.1 °C13 January 2021	27.4 °C	1,424 mm	294
2020	40.8 °C21 April 2020	13.8 °C22 December 2020	28.0 °C	1,070 mm	310
2019	42.2 °C20 April 2019	11.7 °C7 December 2019	28.5 °C	972 mm	338
2018	38.7 °C14 April 2018	12.7 °C6 February 2018	27.4 °C	1,016 mm	313
2017	39.9 °C22 April 2017	11.3 °C20 December 2017	27.5 °C	1,529 mm	318
2016	43.5 °C17 April 2016	10.0 °C8 February 2016	28.1 °C	1,198 mm	318
2015	40.9 °C20 April 2015	11.9 °C14 January 2015	28.0 °C	1,015 mm	321
2014	39.9 °C22 April 2014	9.9 °C23 January 2014	27.6 °C	972 mm	311
2013	40.8 °C4 April 2013	11.9 °C28 December 2013	27.4 °C	1,127 mm	294
2012	40.3 °C26 April 2012	15.7 °C8 January 2012	27.9 °C	1,079 mm	331
2011	38.5 °C22 March 2011	12.9 °C13 December 2011	26.5 °C	1,385 mm	269
2010	41.3 °C13 April 2010	14.4 °C27 December 2010	28.1 °C	1,269 mm	297
2009	39.8 °C24 April 2009	9.8 °C11 January 2009	27.3 °C	1,135 mm	310
2008	38.2 °C30 March 2008	12.3 °C3 January 2008	26.7 °C	1,222 mm	269
2007	41.3 °C24 April 2007	11.6 °C4 February 2007	27.6 °C	1,273 mm	296
2006	39.5 °C13 April 2006	12.1 °C22 December 2006	27.7 °C	1,068 mm	318
2005	40.8 °C11 April 2005	11.4 °C2 January 2005	27.8 °C	918 mm	312
2004	39.6 °C16 April 2004	12.5 °C25 January 2004	27.1 °C	1,038 mm	312
2003	40.5 °C7 May 2003	13.0 °C21 December 2003	27.5 °C	1,027 mm	300
2002	39.5 °C7 April 2002	13.9 °C6 January 2002	27.6 °C	1,425 mm	303
2001	41.6 °C10 April 2001	13.6 °C31 December 2001	27.5 °C	1,143 mm	300
2000	40.0 °C3 April 2000	11.8 °C2 February 2000	27.0 °C	1,453 mm	295
1999	40.7 °C20 March 1999	7.1 °C25 December 1999	26.9 °C	1,300 mm	277
1998	42.8 °C14 April 1998	14.4 °C13 December 1998	28.5 °C	932 mm	326
1997	39.7 °C8 May 1997	12.6 °C12 January 1997	27.5 °C	999 mm	315
1996	40.5 °C20 March 1996	10.1 °C1 January 1996	26.8 °C	1,303 mm	265
1995	40.3 °C16 April 1995	11.1 °C7 January 1995	27.3 °C	1,135 mm	288
1994	39.5 °C12 April 1994	13.3 °C24 January 1994	27.1 °C	1,201 mm	297
1993	40.7 °C29 March 1993	10.1 °C31 January 1993	27.0 °C	884 mm	293
1992	42.0 °C13 April 1992	10.8 °C2 December 1992	27.1 °C	1,136 mm	263
1991	40.2 °C19 April 1991	14.7 °C29 December 1991	27.4 °C	1,255 mm	290
1990	41.2 °C23 April 1990	13.1 °C6 December 1990	27.3 °C	1,108 mm	298
1989	40.4 °C23 April 1989	12.7 °C3 December 1989	26.8 °C	1,212 mm	282
1988	40.6 °C18 March 1988	12.7 °C13 December 1988	27.2 °C	1,149 mm	277
1987	40.3 °C25 March 1987	11.2 °C24 December 1987	27.6 °C	1,199 mm	284
1986	40.9 °C20 March 1986	11.6 °C8 January 1986	27.1 °C	1,105 mm	282
1985	40.8 °C13 April 1985	11.5 °C24 December 1985	27.0 °C	1,045 mm	298
1984	40.4 °C5 April 1984	10.1 °C9 January 1984	26.8 °C	1,145 mm	276
1983	42.3 °C14 April 1983	9.6 °C24 January 1983	27.0 °C	1,353 mm	272
1982	39.6 °C14 March 1982	8.3 °C29 December 1982	27.1 °C	1,220 mm	285
1981	40.0 °C6 April 1981	10.7 °C14 January 1981	27.2 °C	997 mm	298
1980	40.6 °C25 April 1980	13.0 °C24 December 1980	27.4 °C	1,319 mm	306
1979	40.3 °C8 April 1979	12.8 °C28 December 1979	27.3 °C	1,176 mm	307
1978	39.5 °C2 April 1978	12.3 °C16 December 1978	27.0 °C	1,676 mm	279
1977	40.8 °C9 June 1977	13.1 °C23 February 1977	26.9 °C	1,210 mm	279
1976	40.0 °C17 April 1976	9.2 °C1 January 1976	26.4 °C	1,416 mm	268
1975	41.1 °C28 April 1975	6.5 °C30 December 1975	26.7 °C	1,370 mm	272
1974	38.9 °C13 July 1974	5.8 °C2 January 1974	26.7 °C	1,288 mm	271
1973	40.5 °C10 April 1973	9.3 °C29 December 1973	27.2 °C	1,156 mm	273
1972	39.9 °C11 May 1972	11.9 °C16 January 1972	27.0 °C	1,217 mm	290
1971	38.1 °C1 April 1971	10.0 °C5 January 1971	25.9 °C	1,123 mm	246
1970	38.6 °C16 March 1970	13.4 °C20 January 1970	26.8 °C	1,087 mm	267
1969	39.2 °C14 May 1969	11.5 °C12 December 1969	27.0 °C	1,053 mm	265
1968	39.2 °C3 April 1968	10.2 °C5 January 1968	26.7 °C	1,077 mm	305
1967	39.6 °C31 March 1967	8.9 °C17 January 1967	26.5 °C	782 mm	241
1966	37.5 °C29 April 1966	13.1 °C2 January 1966	26.7 °C	1,239 mm	270
1965	38.0 °C13 May 1965	10.6 °C19 January 1965	26.7 °C	1,125 mm	304
1964	39.0 °C7 April 1964	10.4 °C19 December 1964	26.3 °C	1,416 mm	262
1963	40.3 °C23 April 1963	7.4 °C16 January 1963	26.1 °C	1,226 mm	254
1962	39.5 °C7 April 1962	9.0 °C28 January 1962	26.0 °C	1,632 mm	244
1961	39.8 °C23 March 1961	8.5 °C19 January 1961	26.7 °C	1,246 mm	276
1960	41.1 °C29 April 1960	7.5 °C3 January 1960	26.9 °C	1,192 mm	274
1959	39.0 °C12 April 1959	11.6 °C14 January 1959	26.8 °C	1,321 mm	283
1958	41.0 °C25 April 1958	12.1 °C16 December 1958	26.6 °C	1,060 mm	266
1957	40.0 °C23 April 1957	13.6 °C20 January 1957	26.7 °C	1,362 mm	280
1956	39.1 °C24 March 1956	9.7 °C17 January 1956	26.1 °C	1,195 mm	267
1955	41.7 °C18 April 1955	5.3 °C12 January 1955	26.2 °C	1,078 mm	272
1954	40.0 °C18 April 1954	9.2 °C17 December 1954	26.7 °C	974 mm	294
1953	36.8 °C15 April 1953	11.3 °C13 December 1953	25.8 °C	1,778 mm	258
1952	39.5 °C24 April 1952	10.2 °C13 December 1952	26.5 °C	1,394 mm	275
1951	39.1 °C10 April 1951	12.3 °C2 January 1951	26.4 °C	1,114 mm	265
1950	40.5 °C24 April 1950	12.1 °C25 December 1950	26.6 °C	993 mm	261
1949	38.3 °C23 March 1949	8.9 °C16 January 1949	26.7 °C	1,066 mm	273
1948	39.4 °C13 March 1948	9.9 °C2 January 1948	26.3 °C	1,180 mm	250
1947	38.2 °C7 May 1947	10.9 °C30 December 1947	26.8 °C	973 mm	282
1946	39.4 °C27 March 1946	9.2 °C8 January 1946	27.2 °C	602 mm	302
1945	37.6 °C4 March 1945	11.2 °C18 January 1945	26.1 °C	1,058 mm	274
1944	39.9 °C4 May 1944	9.5 °C22 December 1944	26.8 °C	1,047 mm	288
1943	38.2 °C25 March 1943	11.1 °C13 January 1943	25.6 °C	1,225 mm	229
1942	37.5 °C20 April 1942	11.1 °C15 December 1942	25.9 °C	1,146 mm	229
1941	38.6 °C1 March 1941	15.7 °C31 December 1941	26.4 °C	1,049 mm	219
1940	38.7 °C11 March 1940	10.5 °C3 January 1940	25.6 °C	1,207 mm	214

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

32.2 °C

0.0 °C

Hot days (≥ 30 °C)

281 d/yr

-3

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1282 mm

+106 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.9 °C	-1.1 °C	0 mm	-9 mm
Feb	32.5 °C	0.0 °C	6 mm	-9 mm
Mar	34.5 °C	-0.3 °C	35 mm	-4 mm
Apr	36.1 °C	+0.5 °C	50 mm	-24 mm
May	33.8 °C	-0.2 °C	204 mm	+45 mm
Jun	33.3 °C	-0.1 °C	126 mm	-7 mm
Jul	32.0 °C	-0.9 °C	176 mm	+27 mm
Aug	32.8 °C	+0.7 °C	233 mm	+40 mm
Sep	32.0 °C	+0.7 °C	267 mm	+3 mm
Oct	31.8 °C	+1.1 °C	94 mm	-20 mm
Nov	28.6 °C	-1.4 °C	84 mm	+58 mm
Dec	30.3 °C	+1.4 °C	8 mm	+4 mm

The year's extremes

Hottest day

40.0 °C

29 Mar 2025

Coldest day

9.7 °C

13 Jan 2025

Wettest day

42.8 mm

30 Aug 2025

Windiest day

26.6 km/h

26 Jan 2025

Strongest gust

60.5 km/h

23 Jul 2025

Hottest feels-like

45.5 °C

25 Apr 2025

Coldest feels-like

8.4 °C

13 Jan 2025

Sunniest day

12.5 h

18 Jul 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 Khon Kaen?

Khon Kaen has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,176 mm of precipitation per year.

What is the hottest day ever recorded in Khon Kaen?

The hottest day measured in Khon Kaen between 1940 and 2025 was 17 April 2016, reaching 43.5 °C.

What is the coldest day in Khon Kaen?

The coldest day measured in Khon Kaen between 1940 and 2025 was 12 January 1955, at 5.3 °C.

Does it snow in Khon Kaen?

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

Has the climate of Khon Kaen warmed?

Yes: Khon Kaen warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Khon Kaen?

The wettest day measured in Khon Kaen between 1940 and 2025 was 17 September 1962, with 155 mm of rain in 24 hours.

What was the windiest day in Khon Kaen?

The windiest day measured in Khon Kaen between 1940 and 2025 was 26 October 1943, with winds reaching 29.9 km/h.

What is the warmest month in Khon Kaen?

The warmest month in Khon Kaen is April (29.9 °C on average); the coldest is December (22.9 °C).

How much does it rain in Khon Kaen?

Khon Kaen receives on average 1,176 mm of precipitation per year, spread over about 148 rainy days.

Is it sunny in Khon Kaen?

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

Are there tropical nights in Khon Kaen?

Yes: Khon Kaen has on average 287 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Khon Kaen?

In Khon Kaen, between 1940 and 2025, the highest apparent temperature reached 49.1 °C on 21 March 1953, and the lowest was 2.3 °C on 12 January 1955.

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