Nakhon Ratchasima climate — normals and trends

Q: What is the climate of Nakhon Ratchasima?

Nakhon Ratchasima has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,062 mm of precipitation per year.

Q: What is the hottest day ever recorded in Nakhon Ratchasima?

The hottest day measured in Nakhon Ratchasima between 1940 and 2025 was 14 April 1983, reaching 42.2 °C.

Q: What is the coldest day in Nakhon Ratchasima?

The coldest day measured in Nakhon Ratchasima between 1940 and 2025 was 12 January 1955, at 7.4 °C.

Q: Does it snow in Nakhon Ratchasima?

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

Q: Has the climate of Nakhon Ratchasima warmed?

Yes: Nakhon Ratchasima warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Nakhon Ratchasima?

The wettest day measured in Nakhon Ratchasima between 1940 and 2025 was 18 September 1972, with 119 mm of rain in 24 hours.

Q: What was the windiest day in Nakhon Ratchasima?

The windiest day measured in Nakhon Ratchasima between 1940 and 2025 was 3 November 2009, with winds reaching 37.4 km/h.

Q: What is the warmest month in Nakhon Ratchasima?

The warmest month in Nakhon Ratchasima is April (29.5 °C on average); the coldest is December (23.5 °C).

Q: How much does it rain in Nakhon Ratchasima?

Nakhon Ratchasima receives on average 1,062 mm of precipitation per year, spread over about 156 rainy days.

Q: Is it sunny in Nakhon Ratchasima?

Nakhon Ratchasima gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Nakhon Ratchasima (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,062 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.

Nakhon Ratchasima averages 0 frost days, 293 hot days (≥ 30 °C) and 156 rainy days per year.

Nakhon Ratchasima 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 42.2 °C (on 14 April 1983) and the coldest 7.4 °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

Nakhon RatchasimaNakhon Ratchasima

coords: 14.97°, 102.10°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

27.0°C

Average daily high

32.4°C

Average daily low

22.9°C

Annual rainfall

1,062mm

Sunshine / day

10.0h

Mean relative humidity

70%

Average peak wind

13.6km/h

Seasonal range

6.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

293 d/yr

Rainy days (≥ 1 mm)

156 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.0 °C

Average feels-like low

25.9 °C

Average peak gust

32.2 km/h

Tropical nights (≥ 20 °C)

301 d/yr

Solar radiation

18.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.56 · 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

42.2 °C

14 April 1983

Coldest day

7.4 °C

12 January 1955

Wettest day

119 mm

18 September 1972

Windiest day

37.4 km/h

3 November 2009

Strongest gust

76.3 km/h

2 August 2019

Hottest feels-like

47.3 °C

12 April 1952

Coldest feels-like

3.7 °C

12 January 1955

Sunniest day

12.7 h

8 July 1949

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.2 °C2 March 2025	12.4 °C13 January 2025	27.0 °C	1,224 mm	289
2024	41.7 °C27 April 2024	15.7 °C23 December 2024	28.5 °C	1,053 mm	333
2023	39.5 °C6 April 2023	13.9 °C30 January 2023	28.0 °C	999 mm	324
2022	38.2 °C15 March 2022	14.4 °C19 December 2022	27.0 °C	1,390 mm	296
2021	37.9 °C21 March 2021	11.8 °C13 January 2021	27.2 °C	1,310 mm	291
2020	40.4 °C1 April 2020	14.7 °C22 December 2020	27.9 °C	1,231 mm	301
2019	39.2 °C22 June 2019	13.9 °C10 December 2019	28.2 °C	923 mm	334
2018	38.6 °C24 April 2018	13.5 °C6 February 2018	27.3 °C	1,175 mm	318
2017	38.7 °C14 March 2017	12.0 °C20 December 2017	27.4 °C	1,248 mm	308
2016	41.2 °C11 April 2016	12.0 °C8 February 2016	28.1 °C	1,018 mm	326
2015	39.6 °C19 April 2015	14.0 °C16 January 2015	27.9 °C	1,019 mm	323
2014	38.0 °C1 April 2014	10.9 °C25 January 2014	27.4 °C	923 mm	320
2013	40.0 °C5 April 2013	12.3 °C28 December 2013	27.3 °C	1,309 mm	294
2012	38.0 °C26 April 2012	16.4 °C31 December 2012	27.8 °C	989 mm	335
2011	37.1 °C22 March 2011	13.6 °C12 December 2011	26.5 °C	1,340 mm	276
2010	39.5 °C15 April 2010	15.9 °C18 December 2010	27.8 °C	1,256 mm	304
2009	38.0 °C25 April 2009	11.5 °C11 January 2009	27.3 °C	1,022 mm	319
2008	38.9 °C12 April 2008	14.0 °C2 January 2008	26.6 °C	1,314 mm	280
2007	39.0 °C24 April 2007	13.2 °C4 February 2007	27.6 °C	1,169 mm	301
2006	38.3 °C4 May 2006	13.5 °C24 December 2006	27.7 °C	1,088 mm	323
2005	38.7 °C11 April 2005	12.4 °C2 January 2005	27.9 °C	894 mm	321
2004	39.9 °C26 March 2004	13.5 °C25 January 2004	27.6 °C	818 mm	334
2003	38.4 °C14 April 2003	13.4 °C13 January 2003	27.3 °C	1,011 mm	309
2002	39.6 °C7 April 2002	15.7 °C4 January 2002	27.7 °C	1,163 mm	315
2001	40.0 °C11 April 2001	14.3 °C23 December 2001	27.6 °C	921 mm	318
2000	38.1 °C17 March 2000	12.8 °C2 February 2000	26.9 °C	1,413 mm	298
1999	39.2 °C21 March 1999	9.2 °C25 December 1999	27.0 °C	1,184 mm	284
1998	41.2 °C14 April 1998	15.0 °C16 December 1998	28.5 °C	904 mm	332
1997	39.6 °C8 May 1997	13.5 °C12 January 1997	27.7 °C	937 mm	331
1996	39.9 °C22 March 1996	11.2 °C1 January 1996	26.9 °C	1,200 mm	287
1995	39.6 °C22 April 1995	11.9 °C31 December 1995	27.3 °C	1,055 mm	297
1994	40.1 °C11 April 1994	14.5 °C24 January 1994	27.7 °C	879 mm	339
1993	40.0 °C4 April 1993	11.5 °C31 January 1993	27.2 °C	840 mm	309
1992	40.6 °C13 April 1992	13.3 °C17 January 1992	27.4 °C	794 mm	294
1991	39.9 °C19 April 1991	16.1 °C30 December 1991	27.3 °C	1,083 mm	297
1990	39.9 °C24 April 1990	13.9 °C6 December 1990	27.5 °C	1,156 mm	311
1989	39.6 °C23 April 1989	14.1 °C4 December 1989	27.3 °C	938 mm	314
1988	39.0 °C17 March 1988	14.2 °C20 January 1988	27.2 °C	1,182 mm	274
1987	39.8 °C11 April 1987	12.4 °C9 December 1987	27.5 °C	1,020 mm	298
1986	40.2 °C1 April 1986	12.6 °C8 January 1986	27.1 °C	980 mm	305
1985	39.8 °C14 April 1985	12.9 °C17 December 1985	27.1 °C	990 mm	311
1984	38.9 °C5 April 1984	10.6 °C10 January 1984	27.0 °C	853 mm	302
1983	42.2 °C14 April 1983	11.3 °C25 January 1983	27.5 °C	1,087 mm	288
1982	39.9 °C16 March 1982	9.3 °C29 December 1982	27.3 °C	889 mm	314
1981	38.7 °C21 March 1981	11.3 °C14 January 1981	27.2 °C	837 mm	308
1980	40.2 °C29 March 1980	13.3 °C24 December 1980	27.4 °C	1,115 mm	303
1979	40.0 °C8 April 1979	13.9 °C27 December 1979	27.6 °C	1,051 mm	324
1978	41.0 °C23 March 1978	13.3 °C16 December 1978	27.4 °C	1,157 mm	299
1977	41.3 °C18 April 1977	13.2 °C23 February 1977	26.9 °C	992 mm	293
1976	38.9 °C17 April 1976	9.9 °C1 January 1976	26.6 °C	1,239 mm	280
1975	40.3 °C11 April 1975	8.8 °C30 December 1975	26.8 °C	1,152 mm	292
1974	38.0 °C7 April 1974	9.4 °C2 January 1974	26.5 °C	1,250 mm	284
1973	39.7 °C13 March 1973	10.5 °C27 December 1973	27.2 °C	1,049 mm	289
1972	39.3 °C3 May 1972	12.8 °C11 January 1972	27.1 °C	1,447 mm	297
1971	38.0 °C1 April 1971	11.2 °C5 January 1971	26.3 °C	882 mm	270
1970	38.5 °C14 March 1970	14.6 °C3 January 1970	27.1 °C	906 mm	295
1969	38.6 °C9 March 1969	12.7 °C5 December 1969	27.1 °C	958 mm	279
1968	38.5 °C1 April 1968	11.0 °C5 January 1968	27.2 °C	775 mm	330
1967	38.9 °C2 April 1967	9.5 °C17 January 1967	26.4 °C	861 mm	260
1966	37.9 °C10 April 1966	13.6 °C2 January 1966	26.5 °C	1,257 mm	248
1965	39.1 °C1 May 1965	12.2 °C17 January 1965	26.8 °C	1,028 mm	301
1964	39.5 °C7 April 1964	11.8 °C19 December 1964	26.6 °C	1,260 mm	276
1963	40.1 °C23 April 1963	8.1 °C16 January 1963	26.3 °C	1,118 mm	251
1962	39.5 °C23 March 1962	10.5 °C28 January 1962	26.4 °C	1,035 mm	265
1961	38.7 °C14 April 1961	10.1 °C19 January 1961	26.9 °C	885 mm	300
1960	39.7 °C30 April 1960	10.0 °C3 January 1960	27.2 °C	969 mm	293
1959	39.6 °C13 June 1959	12.6 °C14 January 1959	27.0 °C	883 mm	290
1958	40.1 °C25 April 1958	13.2 °C6 January 1958	26.8 °C	924 mm	264
1957	39.7 °C15 May 1957	13.5 °C21 January 1957	26.7 °C	1,442 mm	272
1956	39.0 °C18 March 1956	10.1 °C17 January 1956	26.1 °C	1,170 mm	260
1955	40.1 °C18 April 1955	7.4 °C12 January 1955	26.1 °C	1,052 mm	279
1954	39.6 °C18 April 1954	10.2 °C17 December 1954	26.4 °C	853 mm	286
1953	36.3 °C15 April 1953	12.3 °C13 December 1953	25.5 °C	1,825 mm	227
1952	40.2 °C12 April 1952	11.3 °C12 December 1952	26.6 °C	1,244 mm	281
1951	39.0 °C10 April 1951	13.1 °C17 January 1951	26.7 °C	809 mm	279
1950	39.8 °C24 April 1950	13.4 °C6 February 1950	26.4 °C	985 mm	269
1949	37.6 °C26 February 1949	10.2 °C16 January 1949	26.5 °C	852 mm	273
1948	38.1 °C13 March 1948	11.0 °C2 January 1948	26.3 °C	965 mm	263
1947	38.0 °C6 August 1947	12.3 °C21 December 1947	26.9 °C	924 mm	291
1946	38.9 °C27 March 1946	11.5 °C8 January 1946	26.8 °C	720 mm	295
1945	37.6 °C3 March 1945	12.4 °C19 January 1945	26.4 °C	802 mm	296
1944	38.5 °C9 April 1944	11.2 °C21 December 1944	26.4 °C	1,110 mm	272
1943	36.9 °C7 April 1943	11.8 °C13 January 1943	25.6 °C	1,181 mm	235
1942	36.7 °C23 February 1942	12.1 °C15 December 1942	25.8 °C	1,020 mm	239
1941	38.2 °C1 March 1941	15.9 °C31 December 1941	26.3 °C	1,029 mm	220
1940	38.4 °C11 March 1940	11.4 °C1 January 1940	25.6 °C	1,144 mm	210

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

32.1 °C

-0.3 °C

Hot days (≥ 30 °C)

289 d/yr

-4

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1224 mm

+162 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.0 °C	-0.6 °C	0 mm	-7 mm
Feb	33.4 °C	+0.4 °C	3 mm	-13 mm
Mar	33.8 °C	-1.2 °C	58 mm	+16 mm
Apr	35.1 °C	-0.3 °C	84 mm	+7 mm
May	32.8 °C	-1.3 °C	199 mm	+71 mm
Jun	33.8 °C	+0.1 °C	90 mm	-15 mm
Jul	32.5 °C	-0.6 °C	118 mm	-1 mm
Aug	33.1 °C	+0.7 °C	205 mm	+58 mm
Sep	31.4 °C	+0.1 °C	231 mm	-6 mm
Oct	31.2 °C	+0.7 °C	137 mm	-9 mm
Nov	28.5 °C	-1.5 °C	94 mm	+61 mm
Dec	30.1 °C	+0.7 °C	5 mm	+1 mm

The year's extremes

Hottest day

38.2 °C

2 Mar 2025

Coldest day

12.4 °C

13 Jan 2025

Wettest day

35.9 mm

7 Nov 2025

Windiest day

28.7 km/h

23 Jul 2025

Strongest gust

70.2 km/h

22 Jul 2025

Hottest feels-like

44.8 °C

25 Apr 2025

Coldest feels-like

10.5 °C

13 Jan 2025

Sunniest day

12.6 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 Nakhon Ratchasima?

Nakhon Ratchasima has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,062 mm of precipitation per year.

What is the hottest day ever recorded in Nakhon Ratchasima?

The hottest day measured in Nakhon Ratchasima between 1940 and 2025 was 14 April 1983, reaching 42.2 °C.

What is the coldest day in Nakhon Ratchasima?

The coldest day measured in Nakhon Ratchasima between 1940 and 2025 was 12 January 1955, at 7.4 °C.

Does it snow in Nakhon Ratchasima?

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

Has the climate of Nakhon Ratchasima warmed?

Yes: Nakhon Ratchasima warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Nakhon Ratchasima?

The wettest day measured in Nakhon Ratchasima between 1940 and 2025 was 18 September 1972, with 119 mm of rain in 24 hours.

What was the windiest day in Nakhon Ratchasima?

The windiest day measured in Nakhon Ratchasima between 1940 and 2025 was 3 November 2009, with winds reaching 37.4 km/h.

What is the warmest month in Nakhon Ratchasima?

The warmest month in Nakhon Ratchasima is April (29.5 °C on average); the coldest is December (23.5 °C).

How much does it rain in Nakhon Ratchasima?

Nakhon Ratchasima receives on average 1,062 mm of precipitation per year, spread over about 156 rainy days.

Is it sunny in Nakhon Ratchasima?

Nakhon Ratchasima gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Are there tropical nights in Nakhon Ratchasima?

Yes: Nakhon Ratchasima has on average 301 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Nakhon Ratchasima?

In Nakhon Ratchasima, between 1940 and 2025, the highest apparent temperature reached 47.3 °C on 12 April 1952, and the lowest was 3.7 °C on 12 January 1955.

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