Bang Saphan climate — normals and trends

Q: What is the climate of Bang Saphan?

Bang Saphan has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 1,580 mm of precipitation per year.

Q: What is the hottest day ever recorded in Bang Saphan?

The hottest day measured in Bang Saphan between 1940 and 2025 was 29 April 2012, reaching 35.1 °C.

Q: What is the coldest day in Bang Saphan?

The coldest day measured in Bang Saphan between 1940 and 2025 was 25 December 1999, at 17.4 °C.

Q: Does it snow in Bang Saphan?

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

Q: Has the climate of Bang Saphan warmed?

Yes: Bang Saphan warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Bang Saphan?

The wettest day measured in Bang Saphan between 1940 and 2025 was 5 October 1960, with 175 mm of rain in 24 hours.

Q: What was the windiest day in Bang Saphan?

The windiest day measured in Bang Saphan between 1940 and 2025 was 10 November 1992, with winds reaching 36.2 km/h.

Q: What is the warmest month in Bang Saphan?

The warmest month in Bang Saphan is April (27.7 °C on average); the coldest is January (25.1 °C).

Q: How much does it rain in Bang Saphan?

Bang Saphan receives on average 1,580 mm of precipitation per year, spread over about 215 rainy days.

Q: Is it sunny in Bang Saphan?

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

Bang Saphan (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.4 °C and it receives 1,580 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 (27.7 °C on average) and the coldest is January (25.1 °C). Rainfall peaks in October.

Bang Saphan averages 0 frost days, 90 hot days (≥ 30 °C) and 215 rainy days per year.

Bang Saphan has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.1 °C (on 29 April 2012) and the coldest 17.4 °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

Bang SaphanPrachuap Khiri Khan

coords: 11.21°, 99.51°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthJanuaryWettest monthOctoberDriest monthFebruary

Mean daily temperature

26.4°C

Average daily high

28.8°C

Average daily low

24.5°C

Annual rainfall

1,580mm

Sunshine / day

9.8h

Mean relative humidity

83%

Average peak wind

15.8km/h

Seasonal range

2.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

90 d/yr

Rainy days (≥ 1 mm)

215 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.7 °C

Average feels-like low

28.5 °C

Average peak gust

32.8 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.85 · 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

35.1 °C

29 April 2012

Coldest day

17.4 °C

25 December 1999

Wettest day

175 mm

5 October 1960

Windiest day

36.2 km/h

10 November 1992

Strongest gust

70.9 km/h

10 November 1992

Hottest feels-like

44.1 °C

30 April 2024

Coldest feels-like

14.2 °C

25 December 1999

Sunniest day

12.7 h

15 June 1942

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.4 °C1 June 2025	20.7 °C21 January 2025	27.1 °C	1,718 mm	152
2024	34.8 °C5 May 2024	23.2 °C24 December 2024	28.0 °C	1,394 mm	207
2023	34.5 °C18 May 2023	20.9 °C17 January 2023	27.6 °C	1,343 mm	191
2022	33.8 °C14 April 2022	21.0 °C29 December 2022	27.1 °C	2,106 mm	142
2021	33.6 °C23 April 2021	20.4 °C22 January 2021	27.0 °C	1,810 mm	134
2020	33.4 °C28 August 2020	22.4 °C7 January 2020	27.4 °C	1,546 mm	180
2019	34.7 °C3 May 2019	21.9 °C9 December 2019	27.4 °C	1,357 mm	164
2018	32.8 °C8 May 2018	21.9 °C14 January 2018	27.2 °C	1,757 mm	141
2017	33.6 °C17 June 2017	20.2 °C21 December 2017	27.2 °C	2,080 mm	161
2016	34.5 °C11 April 2016	20.7 °C26 January 2016	27.4 °C	1,639 mm	168
2015	35.0 °C22 April 2015	19.9 °C23 January 2015	27.2 °C	1,401 mm	162
2014	33.7 °C13 April 2014	18.4 °C25 January 2014	27.0 °C	1,486 mm	158
2013	34.5 °C5 April 2013	20.2 °C29 December 2013	27.0 °C	1,459 mm	141
2012	35.1 °C29 April 2012	22.5 °C7 January 2012	27.1 °C	1,416 mm	146
2011	32.4 °C4 May 2011	20.3 °C30 March 2011	26.7 °C	1,546 mm	98
2010	33.5 °C13 April 2010	22.5 °C20 January 2010	27.3 °C	1,306 mm	167
2009	32.6 °C29 April 2009	19.8 °C21 January 2009	26.8 °C	1,376 mm	123
2008	33.7 °C17 April 2008	21.8 °C21 December 2008	26.8 °C	1,392 mm	130
2007	33.1 °C24 May 2007	20.4 °C3 January 2007	27.0 °C	1,629 mm	113
2006	32.2 °C14 May 2006	21.3 °C24 December 2006	27.0 °C	1,488 mm	114
2005	33.7 °C5 May 2005	20.9 °C5 January 2005	26.9 °C	1,412 mm	129
2004	33.3 °C16 April 2004	20.9 °C28 December 2004	27.0 °C	1,120 mm	116
2003	33.3 °C6 May 2003	21.5 °C27 January 2003	26.9 °C	1,578 mm	115
2002	32.6 °C10 April 2002	21.2 °C12 January 2002	26.9 °C	1,385 mm	110
2001	33.6 °C11 April 2001	20.9 °C3 January 2001	26.7 °C	2,119 mm	104
2000	32.8 °C8 May 2000	20.5 °C5 February 2000	26.5 °C	1,666 mm	86
1999	33.4 °C19 March 1999	17.4 °C25 December 1999	26.4 °C	1,866 mm	94
1998	33.8 °C16 May 1998	20.6 °C17 December 1998	27.3 °C	1,702 mm	162
1997	33.6 °C12 May 1997	19.5 °C1 January 1997	26.9 °C	1,349 mm	140
1996	33.6 °C11 April 1996	19.8 °C6 January 1996	26.5 °C	1,859 mm	119
1995	33.1 °C15 April 1995	20.7 °C9 February 1995	26.7 °C	1,403 mm	126
1994	33.0 °C7 April 1994	21.1 °C27 January 1994	26.8 °C	1,221 mm	98
1993	33.7 °C10 May 1993	20.9 °C26 February 1993	26.6 °C	1,309 mm	94
1992	33.9 °C22 April 1992	20.7 °C26 December 1992	26.7 °C	1,095 mm	110
1991	32.8 °C14 February 1991	22.1 °C30 November 1991	26.8 °C	1,406 mm	94
1990	34.2 °C23 April 1990	22.1 °C6 January 1990	26.8 °C	972 mm	94
1989	33.8 °C20 April 1989	21.2 °C7 December 1989	26.5 °C	1,377 mm	80
1988	32.7 °C23 April 1988	20.7 °C7 December 1988	26.6 °C	1,571 mm	110
1987	33.5 °C11 April 1987	20.7 °C18 January 1987	26.8 °C	1,702 mm	123
1986	32.7 °C30 March 1986	19.3 °C15 January 1986	26.3 °C	1,546 mm	84
1985	33.8 °C14 April 1985	20.3 °C18 December 1985	26.3 °C	1,432 mm	74
1984	32.9 °C17 April 1984	20.3 °C14 January 1984	26.3 °C	1,169 mm	64
1983	34.2 °C21 May 1983	20.2 °C30 November 1983	26.5 °C	1,389 mm	103
1982	33.4 °C24 March 1982	19.5 °C23 January 1982	26.2 °C	1,568 mm	68
1981	32.1 °C7 April 1981	19.2 °C19 January 1981	26.2 °C	1,333 mm	85
1980	33.8 °C24 April 1980	20.1 °C30 January 1980	26.6 °C	1,299 mm	104
1979	34.5 °C20 April 1979	21.2 °C20 December 1979	26.6 °C	1,052 mm	113
1978	32.3 °C23 April 1978	19.9 °C24 January 1978	26.3 °C	1,508 mm	66
1977	32.1 °C15 April 1977	20.9 °C13 January 1977	26.2 °C	1,060 mm	59
1976	33.1 °C15 April 1976	17.5 °C3 January 1976	25.8 °C	1,484 mm	61
1975	33.2 °C1 May 1975	19.2 °C18 December 1975	25.9 °C	1,699 mm	64
1974	31.7 °C7 May 1974	19.3 °C15 January 1974	25.8 °C	1,785 mm	47
1973	33.8 °C23 April 1973	19.4 °C30 December 1973	26.3 °C	1,728 mm	81
1972	32.5 °C8 May 1972	20.2 °C4 January 1972	26.0 °C	1,918 mm	81
1971	32.4 °C10 May 1971	19.0 °C14 January 1971	25.7 °C	1,472 mm	63
1970	33.1 °C20 April 1970	20.2 °C22 February 1970	26.2 °C	1,675 mm	74
1969	33.1 °C14 May 1969	20.9 °C9 February 1969	26.3 °C	1,491 mm	80
1968	32.4 °C29 March 1968	20.0 °C14 January 1968	26.0 °C	1,280 mm	47
1967	32.6 °C2 April 1967	18.6 °C16 January 1967	25.8 °C	1,352 mm	62
1966	31.7 °C26 April 1966	22.0 °C3 December 1966	25.8 °C	1,761 mm	37
1965	33.2 °C2 May 1965	17.8 °C26 January 1965	25.9 °C	1,914 mm	63
1964	32.1 °C16 April 1964	20.1 °C26 December 1964	26.0 °C	1,605 mm	65
1963	32.1 °C16 May 1963	18.1 °C21 January 1963	25.9 °C	1,732 mm	56
1962	32.7 °C25 April 1962	20.5 °C8 February 1962	25.9 °C	1,636 mm	47
1961	31.9 °C23 April 1961	19.3 °C24 January 1961	26.0 °C	1,715 mm	57
1960	33.4 °C27 April 1960	19.4 °C5 January 1960	26.2 °C	1,656 mm	71
1959	33.4 °C27 April 1959	21.0 °C1 January 1959	26.2 °C	1,734 mm	47
1958	33.2 °C5 April 1958	21.3 °C10 January 1958	26.3 °C	1,103 mm	69
1957	32.4 °C19 May 1957	18.6 °C2 January 1957	26.1 °C	1,409 mm	56
1956	32.0 °C20 April 1956	18.9 °C31 December 1956	25.6 °C	1,797 mm	31
1955	32.5 °C12 May 1955	19.4 °C12 January 1955	25.9 °C	1,734 mm	60
1954	34.1 °C13 April 1954	20.5 °C23 November 1954	26.1 °C	1,422 mm	58
1953	32.1 °C18 April 1953	18.9 °C10 January 1953	25.8 °C	2,816 mm	52
1952	33.0 °C2 May 1952	18.7 °C15 December 1952	26.0 °C	1,772 mm	57
1951	32.1 °C12 April 1951	20.7 °C2 January 1951	26.1 °C	1,359 mm	39
1950	33.3 °C23 April 1950	21.0 °C13 December 1950	26.0 °C	1,286 mm	46
1949	32.2 °C14 March 1949	20.3 °C11 January 1949	25.8 °C	1,441 mm	49
1948	31.9 °C13 March 1948	20.2 °C3 December 1948	25.6 °C	1,660 mm	19
1947	31.8 °C8 May 1947	20.5 °C26 December 1947	25.8 °C	1,746 mm	24
1946	31.8 °C2 March 1946	20.4 °C2 January 1946	25.6 °C	1,599 mm	19
1945	31.7 °C1 April 1945	20.3 °C25 December 1945	25.4 °C	2,161 mm	15
1944	31.7 °C27 March 1944	20.2 °C21 December 1944	25.5 °C	1,747 mm	26
1943	31.9 °C26 March 1943	19.7 °C21 January 1943	24.9 °C	2,173 mm	8
1942	31.9 °C24 March 1942	20.2 °C18 December 1942	25.5 °C	1,309 mm	26
1941	33.0 °C11 March 1941	19.9 °C28 December 1941	25.5 °C	2,818 mm	36
1940	32.9 °C11 March 1940	18.0 °C6 January 1940	25.2 °C	2,203 mm	21

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

29.6 °C

+0.8 °C

Hot days (≥ 30 °C)

152 d/yr

+62

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1718 mm

+138 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.7 °C	+0.2 °C	7 mm	-30 mm
Feb	28.8 °C	+0.5 °C	90 mm	+54 mm
Mar	30.1 °C	+0.7 °C	29 mm	-30 mm
Apr	30.9 °C	+0.5 °C	149 mm	+57 mm
May	31.0 °C	+0.8 °C	244 mm	+64 mm
Jun	30.3 °C	+0.8 °C	153 mm	-15 mm
Jul	30.1 °C	+1.0 °C	148 mm	-34 mm
Aug	29.9 °C	+1.0 °C	215 mm	+20 mm
Sep	29.8 °C	+1.0 °C	258 mm	+54 mm
Oct	29.6 °C	+1.2 °C	188 mm	-43 mm
Nov	28.5 °C	+0.6 °C	141 mm	-8 mm
Dec	28.3 °C	+1.0 °C	97 mm	+48 mm

The year's extremes

Hottest day

33.4 °C

1 Jun 2025

Coldest day

20.7 °C

21 Jan 2025

Wettest day

92.5 mm

5 Dec 2025

Windiest day

32.4 km/h

12 Jan 2025

Strongest gust

61.6 km/h

12 Jan 2025

Hottest feels-like

41.0 °C

19 Apr 2025

Coldest feels-like

20.7 °C

12 Jan 2025

Sunniest day

12.5 h

25 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 Bang Saphan?

Bang Saphan has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 1,580 mm of precipitation per year.

What is the hottest day ever recorded in Bang Saphan?

The hottest day measured in Bang Saphan between 1940 and 2025 was 29 April 2012, reaching 35.1 °C.

What is the coldest day in Bang Saphan?

The coldest day measured in Bang Saphan between 1940 and 2025 was 25 December 1999, at 17.4 °C.

Does it snow in Bang Saphan?

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

Has the climate of Bang Saphan warmed?

Yes: Bang Saphan warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Bang Saphan?

The wettest day measured in Bang Saphan between 1940 and 2025 was 5 October 1960, with 175 mm of rain in 24 hours.

What was the windiest day in Bang Saphan?

The windiest day measured in Bang Saphan between 1940 and 2025 was 10 November 1992, with winds reaching 36.2 km/h.

What is the warmest month in Bang Saphan?

The warmest month in Bang Saphan is April (27.7 °C on average); the coldest is January (25.1 °C).

How much does it rain in Bang Saphan?

Bang Saphan receives on average 1,580 mm of precipitation per year, spread over about 215 rainy days.

Is it sunny in Bang Saphan?

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

Are there tropical nights in Bang Saphan?

Yes: Bang Saphan has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bang Saphan?

In Bang Saphan, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 30 April 2024, and the lowest was 14.2 °C on 25 December 1999.

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