Bang Len climate — normals and trends

Q: What is the climate of Bang Len?

Bang Len has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.2 °C and it receives 1,279 mm of precipitation per year.

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

The hottest day measured in Bang Len between 1940 and 2025 was 4 May 1980, reaching 41.6 °C.

Q: What is the coldest day in Bang Len?

The coldest day measured in Bang Len between 1940 and 2025 was 12 January 1955, at 12.1 °C.

Q: Does it snow in Bang Len?

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

Q: Has the climate of Bang Len warmed?

Yes: Bang Len warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Bang Len?

The wettest day measured in Bang Len between 1940 and 2025 was 28 September 2012, with 154 mm of rain in 24 hours.

Q: What was the windiest day in Bang Len?

The windiest day measured in Bang Len between 1940 and 2025 was 3 November 2009, with winds reaching 28.9 km/h.

Q: What is the warmest month in Bang Len?

The warmest month in Bang Len is April (30.5 °C on average); the coldest is December (26.0 °C).

Q: How much does it rain in Bang Len?

Bang Len receives on average 1,279 mm of precipitation per year, spread over about 176 rainy days.

Q: Is it sunny in Bang Len?

Bang Len gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Bang Len (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.2 °C and it receives 1,279 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 (30.5 °C on average) and the coldest is December (26.0 °C). Rainfall peaks in September.

Bang Len averages 0 frost days, 331 hot days (≥ 30 °C) and 176 rainy days per year.

Bang Len has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.6 °C (on 4 May 1980) and the coldest 12.1 °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

Bang LenNakhon Pathom

coords: 14.02°, 100.17°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

28.2°C

Average daily high

33.1°C

Average daily low

24.6°C

Annual rainfall

1,279mm

Sunshine / day

10.1h

Mean relative humidity

72%

Average peak wind

13.3km/h

Seasonal range

4.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

331 d/yr

Rainy days (≥ 1 mm)

176 d/yr

Annual snowfall

0.0 cm

Average feels-like high

37.7 °C

Average feels-like low

28.5 °C

Average peak gust

30.8 km/h

Tropical nights (≥ 20 °C)

342 d/yr

Solar radiation

18.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.73 · 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

41.6 °C

4 May 1980

Coldest day

12.1 °C

12 January 1955

Wettest day

154 mm

28 September 2012

Windiest day

28.9 km/h

3 November 2009

Strongest gust

73.1 km/h

7 August 1950

Hottest feels-like

48.0 °C

25 April 2019

Coldest feels-like

9.0 °C

12 January 1955

Sunniest day

12.8 h

25 June 1942

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.4 °C26 April 2025	16.7 °C29 November 2025	28.6 °C	1,463 mm	337
2024	39.5 °C21 April 2024	19.4 °C21 December 2024	29.7 °C	1,109 mm	358
2023	40.2 °C19 May 2023	17.6 °C31 January 2023	29.4 °C	1,006 mm	351
2022	38.4 °C14 April 2022	18.8 °C19 December 2022	28.6 °C	1,493 mm	339
2021	40.2 °C19 May 2021	16.2 °C13 January 2021	28.7 °C	1,406 mm	340
2020	39.0 °C22 April 2020	19.2 °C21 December 2020	29.3 °C	1,149 mm	343
2019	41.2 °C4 May 2019	17.6 °C7 December 2019	29.4 °C	1,075 mm	347
2018	38.4 °C23 April 2018	18.2 °C14 January 2018	28.8 °C	1,359 mm	343
2017	39.3 °C25 April 2017	15.6 °C20 December 2017	28.7 °C	1,599 mm	340
2016	40.1 °C11 April 2016	14.7 °C26 January 2016	29.4 °C	1,026 mm	353
2015	40.1 °C21 April 2015	17.3 °C16 January 2015	29.4 °C	960 mm	348
2014	39.4 °C22 April 2014	13.3 °C24 January 2014	28.8 °C	1,084 mm	339
2013	40.8 °C2 May 2013	15.9 °C28 December 2013	28.6 °C	1,304 mm	332
2012	39.9 °C30 April 2012	20.7 °C9 January 2012	29.1 °C	1,357 mm	354
2011	38.5 °C18 April 2011	17.4 °C17 March 2011	28.1 °C	1,381 mm	326
2010	40.8 °C10 May 2010	19.4 °C18 December 2010	29.2 °C	1,220 mm	344
2009	39.9 °C23 April 2009	15.3 °C12 January 2009	28.6 °C	1,223 mm	346
2008	38.4 °C12 April 2008	17.9 °C10 December 2008	28.4 °C	1,237 mm	346
2007	39.9 °C1 April 2007	15.8 °C4 February 2007	29.0 °C	1,258 mm	345
2006	39.0 °C14 April 2006	16.4 °C24 December 2006	29.2 °C	1,199 mm	349
2005	40.5 °C6 May 2005	16.0 °C3 January 2005	29.2 °C	1,170 mm	345
2004	40.8 °C15 April 2004	17.2 °C15 February 2004	29.2 °C	940 mm	358
2003	40.8 °C6 May 2003	17.0 °C14 January 2003	29.2 °C	1,047 mm	354
2002	39.2 °C9 April 2002	18.7 °C1 January 2002	29.1 °C	1,165 mm	350
2001	41.5 °C21 April 2001	17.7 °C31 December 2001	28.9 °C	1,225 mm	344
2000	40.0 °C4 April 2000	15.8 °C4 February 2000	28.7 °C	1,236 mm	354
1999	39.4 °C18 March 1999	12.5 °C25 December 1999	28.3 °C	1,418 mm	334
1998	41.2 °C24 April 1998	18.5 °C17 December 1998	29.6 °C	1,050 mm	353
1997	41.0 °C20 June 1997	15.8 °C13 January 1997	29.2 °C	953 mm	352
1996	40.2 °C19 April 1996	14.3 °C2 January 1996	28.3 °C	1,589 mm	340
1995	41.3 °C15 April 1995	14.6 °C8 January 1995	28.6 °C	1,531 mm	341
1994	39.5 °C11 April 1994	17.2 °C26 January 1994	28.8 °C	1,156 mm	354
1993	41.0 °C28 March 1993	15.6 °C30 January 1993	28.7 °C	980 mm	346
1992	40.8 °C21 April 1992	16.2 °C18 January 1992	28.7 °C	1,015 mm	342
1991	40.4 °C19 May 1991	18.6 °C6 February 1991	28.9 °C	950 mm	356
1990	40.8 °C23 April 1990	16.4 °C6 December 1990	29.0 °C	1,052 mm	348
1989	40.1 °C19 April 1989	17.2 °C4 December 1989	28.6 °C	1,014 mm	348
1988	38.5 °C6 April 1988	17.1 °C20 January 1988	28.4 °C	1,468 mm	340
1987	39.4 °C4 April 1987	15.6 °C9 December 1987	28.6 °C	1,082 mm	331
1986	38.8 °C21 April 1986	15.7 °C7 January 1986	28.0 °C	1,181 mm	331
1985	39.7 °C13 April 1985	15.9 °C18 December 1985	28.0 °C	1,301 mm	334
1984	39.5 °C5 May 1984	13.7 °C10 January 1984	28.0 °C	854 mm	345
1983	39.8 °C22 May 1983	15.1 °C25 January 1983	28.3 °C	1,322 mm	316
1982	39.0 °C2 May 1982	13.8 °C29 December 1982	28.1 °C	1,020 mm	334
1981	38.8 °C15 March 1981	14.3 °C19 January 1981	27.9 °C	1,335 mm	315
1980	41.6 °C4 May 1980	16.6 °C25 December 1980	28.7 °C	1,072 mm	352
1979	41.2 °C20 April 1979	17.4 °C27 December 1979	29.0 °C	958 mm	357
1978	39.9 °C29 April 1978	16.6 °C16 December 1978	28.3 °C	1,393 mm	338
1977	38.6 °C8 June 1977	17.2 °C6 March 1977	28.4 °C	924 mm	353
1976	39.5 °C13 April 1976	12.8 °C1 January 1976	27.5 °C	1,590 mm	324
1975	40.1 °C29 April 1975	12.9 °C30 December 1975	27.4 °C	1,667 mm	309
1974	38.5 °C8 May 1974	13.7 °C5 January 1974	27.5 °C	1,626 mm	320
1973	40.3 °C23 April 1973	13.8 °C27 December 1973	28.1 °C	1,121 mm	332
1972	41.4 °C4 May 1972	14.5 °C16 January 1972	27.9 °C	1,808 mm	327
1971	38.4 °C25 April 1971	15.3 °C5 January 1971	27.3 °C	1,339 mm	313
1970	39.7 °C11 May 1970	17.9 °C3 January 1970	28.0 °C	1,336 mm	329
1969	39.2 °C21 April 1969	16.1 °C23 December 1969	28.3 °C	1,228 mm	328
1968	40.3 °C28 May 1968	14.5 °C6 January 1968	28.2 °C	1,062 mm	349
1967	41.0 °C2 May 1967	14.1 °C17 January 1967	27.8 °C	1,062 mm	326
1966	38.8 °C27 April 1966	17.0 °C2 January 1966	27.4 °C	1,533 mm	290
1965	39.4 °C30 April 1965	14.6 °C22 January 1965	27.7 °C	1,476 mm	330
1964	38.5 °C6 April 1964	15.0 °C19 December 1964	27.6 °C	1,360 mm	309
1963	39.8 °C17 May 1963	12.7 °C16 January 1963	27.5 °C	1,440 mm	312
1962	38.2 °C3 April 1962	14.8 °C28 January 1962	27.7 °C	1,210 mm	323
1961	38.7 °C26 April 1961	13.6 °C19 January 1961	27.7 °C	1,192 mm	329
1960	41.0 °C25 April 1960	12.2 °C4 January 1960	28.3 °C	1,094 mm	337
1959	38.5 °C15 June 1959	17.0 °C21 January 1959	28.2 °C	1,106 mm	339
1958	39.1 °C5 April 1958	16.8 °C25 November 1958	27.8 °C	1,079 mm	305
1957	40.1 °C15 May 1957	14.2 °C6 February 1957	27.8 °C	1,555 mm	329
1956	37.8 °C30 March 1956	12.9 °C17 January 1956	27.2 °C	1,296 mm	300
1955	38.6 °C18 April 1955	12.1 °C12 January 1955	27.1 °C	1,589 mm	306
1954	38.9 °C27 April 1954	14.0 °C17 December 1954	27.8 °C	1,040 mm	339
1953	36.3 °C18 April 1953	15.2 °C12 December 1953	26.4 °C	2,758 mm	269
1952	38.1 °C30 April 1952	14.4 °C12 December 1952	27.3 °C	1,757 mm	308
1951	39.8 °C10 April 1951	14.9 °C2 January 1951	27.7 °C	1,181 mm	314
1950	39.9 °C23 April 1950	16.5 °C4 January 1950	27.5 °C	1,329 mm	307
1949	38.0 °C23 May 1949	14.8 °C17 January 1949	27.6 °C	915 mm	326
1948	38.1 °C13 March 1948	15.1 °C3 January 1948	27.3 °C	1,370 mm	308
1947	38.6 °C7 May 1947	15.6 °C30 December 1947	27.7 °C	1,211 mm	332
1946	37.9 °C10 March 1946	15.2 °C9 January 1946	27.2 °C	1,337 mm	321
1945	37.4 °C1 April 1945	15.2 °C31 December 1945	27.1 °C	1,514 mm	305
1944	39.2 °C4 May 1944	14.4 °C21 December 1944	27.3 °C	1,556 mm	292
1943	37.4 °C26 March 1943	15.7 °C20 January 1943	26.7 °C	1,537 mm	271
1942	37.3 °C18 April 1942	14.9 °C16 December 1942	26.9 °C	1,361 mm	280
1941	38.9 °C10 March 1941	19.0 °C24 December 1941	27.3 °C	1,569 mm	265
1940	39.7 °C11 March 1940	13.5 °C5 January 1940	26.9 °C	1,496 mm	277

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

33.2 °C

+0.1 °C

Hot days (≥ 30 °C)

337 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1463 mm

+184 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.5 °C	-0.5 °C	0 mm	-17 mm
Feb	33.4 °C	-0.1 °C	34 mm	+7 mm
Mar	35.4 °C	+0.3 °C	50 mm	+3 mm
Apr	35.7 °C	-0.3 °C	78 mm	-1 mm
May	33.7 °C	-1.0 °C	265 mm	+114 mm
Jun	33.9 °C	+0.4 °C	102 mm	-41 mm
Jul	33.1 °C	+0.1 °C	167 mm	+23 mm
Aug	34.1 °C	+1.3 °C	141 mm	-13 mm
Sep	32.5 °C	+0.2 °C	321 mm	+72 mm
Oct	32.6 °C	+0.8 °C	155 mm	-46 mm
Nov	30.3 °C	-1.4 °C	144 mm	+86 mm
Dec	31.9 °C	+0.6 °C	7 mm	-4 mm

The year's extremes

Hottest day

38.4 °C

26 Apr 2025

Coldest day

16.7 °C

29 Nov 2025

Wettest day

58.1 mm

7 Sep 2025

Windiest day

23.0 km/h

22 Jul 2025

Strongest gust

64.4 km/h

23 Jul 2025

Hottest feels-like

45.0 °C

25 Apr 2025

Coldest feels-like

15.6 °C

13 Jan 2025

Sunniest day

12.5 h

2 Aug 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 Len?

Bang Len has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.2 °C and it receives 1,279 mm of precipitation per year.

What is the hottest day ever recorded in Bang Len?

The hottest day measured in Bang Len between 1940 and 2025 was 4 May 1980, reaching 41.6 °C.

What is the coldest day in Bang Len?

The coldest day measured in Bang Len between 1940 and 2025 was 12 January 1955, at 12.1 °C.

Does it snow in Bang Len?

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

Has the climate of Bang Len warmed?

Yes: Bang Len warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Bang Len?

The wettest day measured in Bang Len between 1940 and 2025 was 28 September 2012, with 154 mm of rain in 24 hours.

What was the windiest day in Bang Len?

The windiest day measured in Bang Len between 1940 and 2025 was 3 November 2009, with winds reaching 28.9 km/h.

What is the warmest month in Bang Len?

The warmest month in Bang Len is April (30.5 °C on average); the coldest is December (26.0 °C).

How much does it rain in Bang Len?

Bang Len receives on average 1,279 mm of precipitation per year, spread over about 176 rainy days.

Is it sunny in Bang Len?

Bang Len gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Are there tropical nights in Bang Len?

Yes: Bang Len has on average 342 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bang Len?

In Bang Len, between 1940 and 2025, the highest apparent temperature reached 48.0 °C on 25 April 2019, and the lowest was 9.0 °C on 12 January 1955.

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