Ban Laongam climate — normals and trends

Q: What is the climate of Ban Laongam?

Ban Laongam has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 2,219 mm of precipitation per year.

Q: What is the hottest day ever recorded in Ban Laongam?

The hottest day measured in Ban Laongam between 1940 and 2025 was 16 April 2016, reaching 37.0 °C.

Q: What is the coldest day in Ban Laongam?

The coldest day measured in Ban Laongam between 1940 and 2025 was 15 January 1963, at 5.3 °C.

Q: Does it snow in Ban Laongam?

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

Q: Has the climate of Ban Laongam warmed?

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

Q: What is the wettest day in Ban Laongam?

The wettest day measured in Ban Laongam between 1940 and 2025 was 18 September 2020, with 231 mm of rain in 24 hours.

Q: What was the windiest day in Ban Laongam?

The windiest day measured in Ban Laongam between 1940 and 2025 was 2 September 1969, with winds reaching 35.9 km/h.

Q: What is the warmest month in Ban Laongam?

The warmest month in Ban Laongam is April (25.3 °C on average); the coldest is December (20.3 °C).

Q: How much does it rain in Ban Laongam?

Ban Laongam receives on average 2,219 mm of precipitation per year, spread over about 230 rainy days.

Q: Is it sunny in Ban Laongam?

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

Ban Laongam (Laos) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.4 °C and it receives 2,219 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 (25.3 °C on average) and the coldest is December (20.3 °C). Rainfall peaks in August.

Ban Laongam averages 0 frost days, 85 hot days (≥ 30 °C) and 230 rainy days per year.

Ban Laongam 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 37.0 °C (on 16 April 2016) and the coldest 5.3 °C (on 15 January 1963).

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

Ban LaongamSalavan Province

coords: 15.47°, 106.17°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthAprilColdest monthDecemberWettest monthAugustDriest monthJanuary

Mean daily temperature

23.4°C

Average daily high

28.2°C

Average daily low

19.7°C

Annual rainfall

2,219mm

Sunshine / day

9.8h

Mean relative humidity

80%

Average peak wind

9.9km/h

Seasonal range

5.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

85 d/yr

Rainy days (≥ 1 mm)

230 d/yr

Annual snowfall

0.0 cm

Average feels-like high

32.0 °C

Average feels-like low

22.0 °C

Average peak gust

29.2 km/h

Tropical nights (≥ 20 °C)

219 d/yr

Solar radiation

17.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.65 · 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

37.0 °C

16 April 2016

Coldest day

5.3 °C

15 January 1963

Wettest day

231 mm

18 September 2020

Windiest day

35.9 km/h

2 September 1969

Strongest gust

87.8 km/h

22 September 1964

Hottest feels-like

42.3 °C

9 May 2020

Coldest feels-like

2.7 °C

15 January 1963

Sunniest day

12.5 h

12 June 1946

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.1 °C5 April 2025	9.2 °C13 January 2025	24.0 °C	2,657 mm	126
2024	36.8 °C27 April 2024	11.9 °C23 December 2024	25.0 °C	2,089 mm	188
2023	35.1 °C7 May 2023	10.7 °C30 January 2023	24.5 °C	2,203 mm	155
2022	34.4 °C14 March 2022	11.7 °C14 December 2022	23.9 °C	3,144 mm	115
2021	34.3 °C5 April 2021	8.7 °C13 January 2021	24.1 °C	2,614 mm	130
2020	35.6 °C10 March 2020	12.1 °C21 December 2020	24.7 °C	2,438 mm	193
2019	34.8 °C24 April 2019	10.9 °C8 December 2019	24.7 °C	2,183 mm	190
2018	34.4 °C13 April 2018	10.2 °C6 February 2018	24.2 °C	2,317 mm	133
2017	33.1 °C11 March 2017	10.2 °C20 December 2017	24.1 °C	2,622 mm	106
2016	37.0 °C16 April 2016	7.6 °C8 February 2016	24.6 °C	2,311 mm	128
2015	35.8 °C20 April 2015	10.2 °C16 January 2015	24.5 °C	2,334 mm	176
2014	34.2 °C31 March 2014	9.1 °C22 January 2014	23.9 °C	2,093 mm	123
2013	34.9 °C29 March 2013	10.3 °C21 December 2013	23.9 °C	2,591 mm	119
2012	33.7 °C25 February 2012	13.4 °C31 December 2012	24.2 °C	2,102 mm	107
2011	33.7 °C3 April 2011	11.4 °C17 January 2011	23.2 °C	2,377 mm	80
2010	34.6 °C15 March 2010	12.0 °C18 December 2010	24.3 °C	2,185 mm	127
2009	33.4 °C23 February 2009	8.3 °C11 January 2009	23.6 °C	2,430 mm	75
2008	32.9 °C21 April 2008	12.1 °C3 January 2008	23.2 °C	1,988 mm	66
2007	33.8 °C31 March 2007	9.7 °C29 January 2007	23.6 °C	2,589 mm	89
2006	33.3 °C13 May 2006	9.4 °C22 December 2006	23.8 °C	2,593 mm	108
2005	33.9 °C2 May 2005	9.3 °C2 January 2005	23.9 °C	1,835 mm	119
2004	33.7 °C18 March 2004	10.9 °C25 January 2004	23.6 °C	2,011 mm	88
2003	33.6 °C9 May 2003	10.0 °C12 January 2003	23.6 °C	2,282 mm	99
2002	34.5 °C15 March 2002	11.9 °C9 January 2002	23.8 °C	2,158 mm	96
2001	34.5 °C10 April 2001	10.9 °C23 December 2001	23.8 °C	2,049 mm	93
2000	32.9 °C8 April 2000	10.6 °C2 February 2000	23.2 °C	2,480 mm	51
1999	33.9 °C3 April 1999	5.8 °C26 December 1999	23.2 °C	2,556 mm	54
1998	35.2 °C20 March 1998	13.8 °C13 December 1998	24.4 °C	1,898 mm	148
1997	32.1 °C11 March 1997	10.4 °C12 January 1997	23.5 °C	2,131 mm	73
1996	35.4 °C23 March 1996	10.0 °C2 January 1996	23.3 °C	2,739 mm	66
1995	33.6 °C13 March 1995	9.0 °C7 January 1995	23.5 °C	1,996 mm	84
1994	32.8 °C3 May 1994	10.0 °C24 January 1994	23.5 °C	2,097 mm	58
1993	33.7 °C4 May 1993	8.1 °C30 January 1993	23.2 °C	1,831 mm	72
1992	34.4 °C26 April 1992	9.7 °C17 January 1992	23.3 °C	2,109 mm	74
1991	34.7 °C19 April 1991	13.3 °C24 February 1991	24.0 °C	2,175 mm	109
1990	34.2 °C23 April 1990	11.2 °C6 December 1990	23.7 °C	2,207 mm	86
1989	34.0 °C19 February 1989	10.4 °C3 December 1989	23.5 °C	2,168 mm	67
1988	33.6 °C21 March 1988	11.2 °C12 December 1988	23.6 °C	2,423 mm	95
1987	35.1 °C21 April 1987	10.6 °C8 December 1987	24.0 °C	2,087 mm	116
1986	34.5 °C15 March 1986	9.1 °C4 March 1986	23.2 °C	2,336 mm	54
1985	33.2 °C10 April 1985	10.0 °C17 December 1985	23.2 °C	2,264 mm	38
1984	34.0 °C15 March 1984	9.5 °C9 January 1984	23.2 °C	2,444 mm	63
1983	35.5 °C13 April 1983	8.0 °C25 January 1983	23.7 °C	2,304 mm	98
1982	34.8 °C7 March 1982	7.1 °C29 December 1982	23.5 °C	2,056 mm	84
1981	34.1 °C29 March 1981	9.6 °C13 January 1981	23.4 °C	2,523 mm	70
1980	35.6 °C6 April 1980	11.2 °C24 December 1980	24.0 °C	2,347 mm	100
1979	36.2 °C13 April 1979	11.2 °C29 November 1979	23.8 °C	2,299 mm	103
1978	33.9 °C1 April 1978	11.2 °C22 January 1978	23.3 °C	2,545 mm	64
1977	33.5 °C28 March 1977	10.4 °C6 March 1977	23.1 °C	2,025 mm	66
1976	33.3 °C18 April 1976	8.2 °C13 January 1976	22.7 °C	2,368 mm	38
1975	32.9 °C17 April 1975	6.1 °C23 December 1975	22.8 °C	2,684 mm	40
1974	32.3 °C9 March 1974	6.4 °C2 January 1974	22.8 °C	2,493 mm	47
1973	35.3 °C11 April 1973	7.9 °C29 December 1973	23.6 °C	2,261 mm	117
1972	33.7 °C24 May 1972	9.4 °C15 January 1972	23.1 °C	2,836 mm	53
1971	33.0 °C30 March 1971	9.0 °C9 January 1971	22.5 °C	2,338 mm	61
1970	33.8 °C11 April 1970	11.3 °C20 January 1970	23.4 °C	1,819 mm	85
1969	33.8 °C4 April 1969	10.3 °C22 December 1969	23.6 °C	2,077 mm	101
1968	35.0 °C1 April 1968	11.1 °C5 January 1968	23.5 °C	1,942 mm	87
1967	33.4 °C29 March 1967	7.8 °C17 January 1967	22.6 °C	1,788 mm	53
1966	33.0 °C14 March 1966	11.9 °C1 January 1966	23.4 °C	2,270 mm	75
1965	32.2 °C3 April 1965	9.4 °C2 January 1965	23.1 °C	2,041 mm	59
1964	33.6 °C10 April 1964	10.0 °C19 December 1964	23.1 °C	2,401 mm	74
1963	33.4 °C22 April 1963	5.3 °C15 January 1963	22.6 °C	2,211 mm	52
1962	32.3 °C17 April 1962	8.2 °C28 January 1962	22.5 °C	2,379 mm	45
1961	32.6 °C8 April 1961	8.2 °C17 January 1961	23.0 °C	2,219 mm	62
1960	33.4 °C28 April 1960	7.0 °C3 January 1960	23.1 °C	2,314 mm	72
1959	33.6 °C8 March 1959	10.9 °C12 January 1959	23.5 °C	1,887 mm	97
1958	35.0 °C26 April 1958	11.1 °C14 February 1958	23.1 °C	2,072 mm	88
1957	32.3 °C4 March 1957	10.1 °C3 January 1957	23.2 °C	2,516 mm	70
1956	33.1 °C20 April 1956	8.8 °C30 December 1956	22.7 °C	2,121 mm	64
1955	33.9 °C27 April 1955	5.5 °C12 January 1955	23.0 °C	1,868 mm	91
1954	32.8 °C3 April 1954	9.3 °C17 December 1954	23.0 °C	1,834 mm	68
1953	31.7 °C21 March 1953	10.5 °C9 January 1953	23.1 °C	2,260 mm	42
1952	32.7 °C21 April 1952	9.1 °C10 December 1952	23.0 °C	2,177 mm	65
1951	33.2 °C10 April 1951	10.7 °C14 January 1951	23.0 °C	1,683 mm	50
1950	33.2 °C12 February 1950	11.0 °C20 December 1950	22.9 °C	1,688 mm	64
1949	33.0 °C26 February 1949	8.3 °C16 January 1949	22.9 °C	2,301 mm	68
1948	34.9 °C13 March 1948	7.9 °C2 January 1948	22.9 °C	1,703 mm	88
1947	33.1 °C24 April 1947	9.8 °C29 December 1947	23.2 °C	1,737 mm	102
1946	34.6 °C5 April 1946	8.6 °C8 January 1946	23.0 °C	1,656 mm	71
1945	32.9 °C4 March 1945	10.4 °C18 January 1945	22.5 °C	1,834 mm	28
1944	33.0 °C27 March 1944	10.0 °C21 December 1944	22.7 °C	1,883 mm	61
1943	33.0 °C24 March 1943	9.7 °C13 January 1943	22.1 °C	1,998 mm	33
1942	31.4 °C22 February 1942	10.3 °C15 December 1942	22.3 °C	2,057 mm	26
1941	32.4 °C24 February 1941	13.2 °C30 December 1941	22.7 °C	2,287 mm	37
1940	32.9 °C9 March 1940	7.9 °C3 January 1940	22.1 °C	2,625 mm	25

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

29.0 °C

+0.8 °C

Hot days (≥ 30 °C)

126 d/yr

+41

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2658 mm

+439 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.2 °C	0.0 °C	0 mm	-14 mm
Feb	30.6 °C	+1.5 °C	15 mm	-19 mm
Mar	31.4 °C	+0.9 °C	52 mm	-55 mm
Apr	32.8 °C	+2.2 °C	136 mm	-47 mm
May	30.9 °C	+1.3 °C	388 mm	+117 mm
Jun	28.9 °C	+0.4 °C	352 mm	+77 mm
Jul	27.8 °C	0.0 °C	343 mm	+34 mm
Aug	28.6 °C	+1.2 °C	307 mm	-57 mm
Sep	27.9 °C	+0.5 °C	496 mm	+135 mm
Oct	28.1 °C	+0.6 °C	339 mm	+133 mm
Nov	26.7 °C	-0.3 °C	215 mm	+140 mm
Dec	27.8 °C	+1.7 °C	14 mm	-6 mm

The year's extremes

Hottest day

35.1 °C

5 Apr 2025

Coldest day

9.2 °C

13 Jan 2025

Wettest day

67.7 mm

7 Sep 2025

Windiest day

24.7 km/h

22 Jul 2025

Strongest gust

68.0 km/h

22 Jul 2025

Hottest feels-like

40.5 °C

9 May 2025

Coldest feels-like

7.7 °C

13 Jan 2025

Sunniest day

12.1 h

12 May 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 Ban Laongam?

Ban Laongam has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 2,219 mm of precipitation per year.

What is the hottest day ever recorded in Ban Laongam?

The hottest day measured in Ban Laongam between 1940 and 2025 was 16 April 2016, reaching 37.0 °C.

What is the coldest day in Ban Laongam?

The coldest day measured in Ban Laongam between 1940 and 2025 was 15 January 1963, at 5.3 °C.

Does it snow in Ban Laongam?

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

Has the climate of Ban Laongam warmed?

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

What is the wettest day in Ban Laongam?

The wettest day measured in Ban Laongam between 1940 and 2025 was 18 September 2020, with 231 mm of rain in 24 hours.

What was the windiest day in Ban Laongam?

The windiest day measured in Ban Laongam between 1940 and 2025 was 2 September 1969, with winds reaching 35.9 km/h.

What is the warmest month in Ban Laongam?

The warmest month in Ban Laongam is April (25.3 °C on average); the coldest is December (20.3 °C).

How much does it rain in Ban Laongam?

Ban Laongam receives on average 2,219 mm of precipitation per year, spread over about 230 rainy days.

Is it sunny in Ban Laongam?

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

Are there tropical nights in Ban Laongam?

Yes: Ban Laongam has on average 219 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ban Laongam?

In Ban Laongam, between 1940 and 2025, the highest apparent temperature reached 42.3 °C on 9 May 2020, and the lowest was 2.7 °C on 15 January 1963.

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