Chumphon climate — normals and trends

Q: What is the climate of Chumphon?

Chumphon has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 1,531 mm of precipitation per year.

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

The hottest day measured in Chumphon between 1940 and 2025 was 5 May 2024, reaching 34.3 °C.

Q: What is the coldest day in Chumphon?

The coldest day measured in Chumphon between 1940 and 2025 was 28 December 1941, at 20.3 °C.

Q: Does it snow in Chumphon?

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

Q: Has the climate of Chumphon warmed?

Yes: Chumphon warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chumphon?

The wettest day measured in Chumphon between 1940 and 2025 was 6 October 1998, with 219 mm of rain in 24 hours.

Q: What was the windiest day in Chumphon?

The windiest day measured in Chumphon between 1940 and 2025 was 5 December 1972, with winds reaching 50.5 km/h.

Q: What is the warmest month in Chumphon?

The warmest month in Chumphon is April (27.8 °C on average); the coldest is January (25.7 °C).

Q: How much does it rain in Chumphon?

Chumphon receives on average 1,531 mm of precipitation per year, spread over about 213 rainy days.

Q: Is it sunny in Chumphon?

Chumphon gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Chumphon (Thailand) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 1,531 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 (27.8 °C on average) and the coldest is January (25.7 °C). Rainfall peaks in November.

Chumphon averages 0 frost days, 29 hot days (≥ 30 °C) and 213 rainy days per year.

Chumphon has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.3 °C (on 5 May 2024) and the coldest 20.3 °C (on 28 December 1941).

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

ChumphonChumphon

coords: 10.50°, 99.18°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthAprilColdest monthJanuaryWettest monthNovemberDriest monthFebruary

Mean daily temperature

26.6°C

Average daily high

28.1°C

Average daily low

25.5°C

Annual rainfall

1,531mm

Sunshine / day

9.8h

Mean relative humidity

82%

Average peak wind

21.1km/h

Seasonal range

2.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

29 d/yr

Rainy days (≥ 1 mm)

213 d/yr

Annual snowfall

0.0 cm

Average feels-like high

32.4 °C

Average feels-like low

28.9 °C

Average peak gust

32.2 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

17.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.72 · 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

34.3 °C

5 May 2024

Coldest day

20.3 °C

28 December 1941

Wettest day

219 mm

6 October 1998

Windiest day

50.5 km/h

5 December 1972

Strongest gust

78.5 km/h

5 December 1972

Hottest feels-like

41.5 °C

1 May 2024

Coldest feels-like

17.7 °C

25 December 1999

Sunniest day

12.6 h

15 June 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	31.6 °C28 March 2025	22.7 °C3 December 2025	27.1 °C	1,555 mm	48
2024	34.3 °C5 May 2024	24.6 °C23 December 2024	27.9 °C	1,479 mm	106
2023	33.5 °C15 April 2023	22.5 °C17 January 2023	27.5 °C	1,313 mm	96
2022	32.2 °C15 April 2022	22.4 °C29 December 2022	27.1 °C	2,405 mm	49
2021	32.0 °C23 April 2021	22.9 °C22 January 2021	27.0 °C	1,939 mm	44
2020	32.2 °C10 March 2020	23.4 °C7 January 2020	27.4 °C	1,372 mm	54
2019	33.8 °C20 April 2019	23.9 °C23 December 2019	27.4 °C	1,370 mm	87
2018	31.1 °C24 April 2018	24.1 °C14 January 2018	27.1 °C	1,665 mm	31
2017	31.7 °C17 June 2017	22.9 °C31 January 2017	27.1 °C	2,230 mm	59
2016	33.6 °C12 April 2016	23.4 °C26 January 2016	27.4 °C	1,607 mm	66
2015	33.4 °C21 April 2015	21.6 °C22 January 2015	27.2 °C	1,307 mm	49
2014	32.0 °C29 May 2014	22.4 °C2 February 2014	27.0 °C	1,170 mm	62
2013	33.6 °C8 April 2013	23.2 °C29 December 2013	27.0 °C	1,419 mm	45
2012	32.7 °C31 March 2012	23.1 °C7 January 2012	27.0 °C	1,455 mm	60
2011	31.4 °C18 April 2011	22.8 °C30 March 2011	26.8 °C	1,652 mm	26
2010	32.6 °C10 May 2010	24.2 °C11 December 2010	27.4 °C	1,315 mm	76
2009	32.3 °C18 April 2009	22.3 °C21 January 2009	26.9 °C	1,073 mm	38
2008	32.0 °C17 April 2008	23.6 °C20 January 2008	26.8 °C	1,452 mm	18
2007	31.8 °C16 March 2007	22.4 °C3 January 2007	26.9 °C	1,546 mm	40
2006	31.5 °C14 May 2006	23.0 °C15 January 2006	26.9 °C	1,222 mm	24
2005	31.4 °C4 May 2005	22.3 °C22 December 2005	27.0 °C	1,412 mm	34
2004	32.1 °C18 April 2004	23.2 °C26 December 2004	27.1 °C	1,048 mm	41
2003	32.6 °C5 March 2003	23.1 °C27 January 2003	27.0 °C	1,489 mm	42
2002	31.2 °C1 June 2002	23.2 °C25 January 2002	27.0 °C	1,379 mm	25
2001	32.7 °C20 April 2001	22.8 °C3 January 2001	26.7 °C	1,896 mm	20
2000	32.0 °C13 March 2000	22.6 °C5 February 2000	26.5 °C	1,826 mm	16
1999	32.8 °C20 March 1999	20.9 °C25 December 1999	26.4 °C	1,983 mm	20
1998	32.5 °C10 March 1998	22.6 °C17 January 1998	27.4 °C	1,859 mm	80
1997	31.3 °C5 May 1997	21.9 °C25 January 1997	27.0 °C	1,233 mm	39
1996	32.7 °C11 April 1996	21.9 °C26 December 1996	26.6 °C	1,592 mm	19
1995	32.2 °C18 May 1995	22.9 °C14 December 1995	26.9 °C	1,351 mm	37
1994	31.9 °C10 April 1994	23.0 °C9 January 1994	26.8 °C	1,184 mm	26
1993	32.3 °C30 April 1993	22.6 °C27 January 1993	26.7 °C	1,075 mm	39
1992	32.7 °C22 April 1992	22.6 °C31 January 1992	26.7 °C	989 mm	51
1991	31.6 °C15 February 1991	23.5 °C14 January 1991	27.0 °C	1,286 mm	42
1990	32.5 °C24 April 1990	23.4 °C17 November 1990	27.0 °C	893 mm	26
1989	32.6 °C23 April 1989	22.7 °C8 February 1989	26.6 °C	1,276 mm	32
1988	32.1 °C28 March 1988	23.3 °C14 December 1988	26.8 °C	1,449 mm	34
1987	32.3 °C6 April 1987	22.8 °C17 January 1987	27.0 °C	1,229 mm	43
1986	32.2 °C30 March 1986	21.4 °C15 January 1986	26.4 °C	1,538 mm	15
1985	32.6 °C13 April 1985	22.0 °C8 January 1985	26.6 °C	1,300 mm	31
1984	31.3 °C2 May 1984	23.2 °C7 March 1984	26.4 °C	1,093 mm	16
1983	32.3 °C21 May 1983	22.6 °C18 February 1983	26.7 °C	1,114 mm	35
1982	32.6 °C25 March 1982	21.7 °C13 January 1982	26.5 °C	1,323 mm	24
1981	30.7 °C16 February 1981	21.6 °C10 January 1981	26.6 °C	1,435 mm	16
1980	31.8 °C4 May 1980	22.3 °C18 January 1980	26.8 °C	1,127 mm	37
1979	32.6 °C21 April 1979	23.0 °C1 February 1979	26.9 °C	964 mm	39
1978	30.6 °C22 April 1978	22.1 °C24 January 1978	26.4 °C	1,416 mm	11
1977	31.3 °C7 June 1977	22.6 °C17 January 1977	26.5 °C	1,178 mm	21
1976	31.8 °C15 April 1976	20.4 °C19 January 1976	26.1 °C	1,224 mm	13
1975	31.2 °C30 April 1975	22.2 °C29 December 1975	26.1 °C	1,706 mm	11
1974	30.4 °C8 May 1974	21.8 °C10 January 1974	26.2 °C	1,566 mm	2
1973	31.4 °C11 April 1973	22.2 °C26 December 1973	26.6 °C	1,615 mm	22
1972	31.5 °C28 May 1972	21.6 °C5 January 1972	26.4 °C	1,775 mm	27
1971	31.5 °C1 May 1971	23.0 °C13 January 1971	26.1 °C	1,604 mm	11
1970	32.1 °C20 April 1970	21.7 °C18 December 1970	26.6 °C	1,784 mm	17
1969	31.8 °C13 May 1969	22.7 °C13 January 1969	26.7 °C	1,335 mm	32
1968	31.8 °C29 March 1968	22.3 °C23 November 1968	26.4 °C	1,143 mm	15
1967	32.0 °C2 April 1967	21.9 °C17 January 1967	26.3 °C	1,414 mm	12
1966	31.2 °C26 March 1966	22.8 °C19 January 1966	26.5 °C	1,806 mm	21
1965	31.2 °C28 March 1965	21.7 °C23 January 1965	26.2 °C	2,051 mm	17
1964	31.0 °C5 March 1964	22.3 °C26 December 1964	26.4 °C	1,618 mm	7
1963	31.1 °C16 May 1963	22.0 °C15 January 1963	26.3 °C	1,663 mm	15
1962	31.2 °C17 May 1962	22.5 °C8 January 1962	26.4 °C	1,619 mm	13
1961	31.6 °C25 March 1961	22.3 °C17 January 1961	26.3 °C	1,732 mm	13
1960	31.9 °C24 April 1960	21.3 °C5 January 1960	26.4 °C	1,407 mm	18
1959	31.5 °C28 April 1959	21.9 °C1 January 1959	26.5 °C	1,724 mm	18
1958	32.6 °C5 April 1958	21.9 °C27 December 1958	26.7 °C	1,007 mm	21
1957	31.5 °C26 April 1957	20.8 °C4 January 1957	26.4 °C	1,285 mm	25
1956	30.5 °C20 April 1956	21.1 °C31 December 1956	26.0 °C	1,684 mm	4
1955	30.9 °C8 May 1955	22.3 °C25 December 1955	26.2 °C	1,813 mm	7
1954	33.0 °C13 April 1954	22.3 °C22 December 1954	26.5 °C	1,349 mm	15
1953	30.8 °C18 April 1953	22.1 °C10 January 1953	26.2 °C	2,762 mm	11
1952	31.1 °C3 May 1952	21.1 °C15 December 1952	26.4 °C	1,764 mm	10
1951	30.8 °C14 June 1951	23.2 °C30 January 1951	26.6 °C	1,426 mm	11
1950	32.3 °C23 April 1950	21.3 °C21 January 1950	26.4 °C	1,337 mm	8
1949	32.4 °C24 February 1949	22.5 °C11 January 1949	26.4 °C	1,187 mm	21
1948	31.1 °C9 April 1948	21.7 °C14 February 1948	26.1 °C	1,574 mm	2
1947	31.0 °C29 May 1947	22.1 °C26 December 1947	26.3 °C	1,903 mm	8
1946	31.3 °C3 March 1946	22.4 °C25 January 1946	26.2 °C	1,655 mm	4
1945	31.5 °C1 April 1945	20.7 °C25 December 1945	26.0 °C	2,530 mm	8
1944	31.7 °C27 March 1944	21.6 °C26 January 1944	26.1 °C	1,847 mm	5
1943	31.1 °C27 April 1943	22.1 °C5 January 1943	25.6 °C	2,194 mm	2
1942	30.6 °C23 March 1942	22.5 °C9 February 1942	26.1 °C	1,151 mm	7
1941	31.7 °C10 March 1941	20.3 °C28 December 1941	26.1 °C	2,632 mm	10
1940	31.0 °C17 May 1940	20.7 °C8 January 1940	25.9 °C	2,309 mm	6

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

28.5 °C

+0.4 °C

Hot days (≥ 30 °C)

48 d/yr

+19

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1556 mm

+25 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.8 °C	0.0 °C	14 mm	-45 mm
Feb	27.6 °C	+0.2 °C	173 mm	+125 mm
Mar	28.9 °C	+0.5 °C	46 mm	-18 mm
Apr	29.5 °C	+0.2 °C	144 mm	+57 mm
May	29.5 °C	+0.2 °C	179 mm	+40 mm
Jun	29.3 °C	+0.4 °C	97 mm	-21 mm
Jul	29.2 °C	+0.7 °C	89 mm	-38 mm
Aug	28.8 °C	+0.5 °C	151 mm	+10 mm
Sep	28.5 °C	+0.4 °C	179 mm	+18 mm
Oct	28.3 °C	+0.7 °C	210 mm	-31 mm
Nov	27.5 °C	+0.2 °C	215 mm	-28 mm
Dec	27.4 °C	+0.6 °C	59 mm	-44 mm

The year's extremes

Hottest day

31.6 °C

28 Mar 2025

Coldest day

22.7 °C

3 Dec 2025

Wettest day

95.6 mm

18 Nov 2025

Windiest day

43.6 km/h

12 Jan 2025

Strongest gust

63.4 km/h

19 Nov 2025

Hottest feels-like

38.7 °C

24 Apr 2025

Coldest feels-like

20.9 °C

12 Jan 2025

Sunniest day

12.6 h

10 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 Chumphon?

Chumphon has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 1,531 mm of precipitation per year.

What is the hottest day ever recorded in Chumphon?

The hottest day measured in Chumphon between 1940 and 2025 was 5 May 2024, reaching 34.3 °C.

What is the coldest day in Chumphon?

The coldest day measured in Chumphon between 1940 and 2025 was 28 December 1941, at 20.3 °C.

Does it snow in Chumphon?

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

Has the climate of Chumphon warmed?

Yes: Chumphon warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chumphon?

The wettest day measured in Chumphon between 1940 and 2025 was 6 October 1998, with 219 mm of rain in 24 hours.

What was the windiest day in Chumphon?

The windiest day measured in Chumphon between 1940 and 2025 was 5 December 1972, with winds reaching 50.5 km/h.

What is the warmest month in Chumphon?

The warmest month in Chumphon is April (27.8 °C on average); the coldest is January (25.7 °C).

How much does it rain in Chumphon?

Chumphon receives on average 1,531 mm of precipitation per year, spread over about 213 rainy days.

Is it sunny in Chumphon?

Chumphon gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Are there tropical nights in Chumphon?

Yes: Chumphon has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chumphon?

In Chumphon, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 1 May 2024, and the lowest was 17.7 °C on 25 December 1999.

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