Negombo climate — normals and trends

Q: What is the climate of Negombo?

Negombo has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.9 °C and it receives 2,107 mm of precipitation per year.

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

The hottest day measured in Negombo between 1940 and 2025 was 11 March 2010, reaching 33.6 °C.

Q: What is the coldest day in Negombo?

The coldest day measured in Negombo between 1940 and 2025 was 22 January 1956, at 21.0 °C.

Q: Does it snow in Negombo?

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

Q: Has the climate of Negombo warmed?

Yes: Negombo warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Negombo?

The wettest day measured in Negombo between 1940 and 2025 was 28 November 2025, with 226 mm of rain in 24 hours.

Q: What was the windiest day in Negombo?

The windiest day measured in Negombo between 1940 and 2025 was 13 November 1992, with winds reaching 47.6 km/h.

Q: What is the warmest month in Negombo?

The warmest month in Negombo is April (27.8 °C on average); the coldest is January (26.2 °C).

Q: How much does it rain in Negombo?

Negombo receives on average 2,107 mm of precipitation per year, spread over about 259 rainy days.

Q: Is it sunny in Negombo?

Negombo gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Negombo (Sri Lanka) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.9 °C and it receives 2,107 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 (26.2 °C). Rainfall peaks in October.

Negombo averages 0 frost days, 46 hot days (≥ 30 °C) and 259 rainy days per year.

Negombo has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 33.6 °C (on 11 March 2010) and the coldest 21.0 °C (on 22 January 1956).

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

NegomboWestern Province

coords: 7.21°, 79.84°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthAprilColdest monthJanuaryWettest monthOctoberDriest monthFebruary

Mean daily temperature

26.9°C

Average daily high

28.6°C

Average daily low

25.4°C

Annual rainfall

2,107mm

Sunshine / day

10.3h

Mean relative humidity

83%

Average peak wind

20.6km/h

Seasonal range

1.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

46 d/yr

Rainy days (≥ 1 mm)

259 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.2 °C

Average feels-like low

28.8 °C

Average peak gust

34.7 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

19.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.79 · 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

33.6 °C

11 March 2010

Coldest day

21.0 °C

22 January 1956

Wettest day

226 mm

28 November 2025

Windiest day

47.6 km/h

13 November 1992

Strongest gust

82.1 km/h

28 November 2025

Hottest feels-like

41.1 °C

25 March 2024

Coldest feels-like

20.2 °C

13 February 1956

Sunniest day

12.2 h

30 May 1945

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.2 °C24 February 2025	23.6 °C4 February 2025	27.6 °C	2,316 mm	103
2024	33.6 °C26 February 2024	24.0 °C25 January 2024	28.0 °C	2,747 mm	152
2023	32.7 °C11 April 2023	22.3 °C13 January 2023	27.6 °C	2,852 mm	109
2022	32.2 °C27 February 2022	23.2 °C21 January 2022	27.4 °C	2,049 mm	85
2021	31.8 °C13 March 2021	22.6 °C11 February 2021	27.5 °C	2,407 mm	90
2020	33.3 °C18 March 2020	23.1 °C15 January 2020	27.8 °C	1,745 mm	147
2019	32.7 °C25 March 2019	22.6 °C19 January 2019	27.6 °C	2,014 mm	136
2018	32.6 °C15 February 2018	22.3 °C7 January 2018	27.2 °C	2,126 mm	87
2017	31.9 °C22 March 2017	22.1 °C8 January 2017	27.4 °C	1,920 mm	60
2016	33.2 °C29 February 2016	22.4 °C24 December 2016	27.8 °C	1,708 mm	139
2015	32.3 °C26 March 2015	23.2 °C18 February 2015	27.5 °C	2,543 mm	111
2014	33.4 °C26 March 2014	22.4 °C6 February 2014	27.3 °C	2,297 mm	88
2013	32.0 °C20 March 2013	23.0 °C30 January 2013	27.2 °C	1,916 mm	74
2012	31.7 °C25 February 2012	22.9 °C16 January 2012	27.3 °C	1,963 mm	42
2011	31.9 °C17 March 2011	22.0 °C14 January 2011	27.1 °C	2,196 mm	30
2010	33.6 °C11 March 2010	22.7 °C23 January 2010	27.4 °C	2,212 mm	98
2009	31.7 °C21 February 2009	22.5 °C3 February 2009	27.3 °C	2,061 mm	53
2008	31.0 °C15 February 2008	22.3 °C19 January 2008	27.1 °C	2,534 mm	19
2007	31.6 °C20 February 2007	22.2 °C4 January 2007	27.3 °C	2,130 mm	86
2006	31.8 °C19 March 2006	21.4 °C25 January 2006	27.2 °C	2,557 mm	47
2005	32.0 °C19 March 2005	22.7 °C28 December 2005	27.3 °C	2,097 mm	72
2004	32.5 °C10 March 2004	22.1 °C22 December 2004	27.2 °C	2,281 mm	86
2003	31.9 °C22 March 2003	22.8 °C2 January 2003	27.3 °C	2,138 mm	68
2002	31.8 °C11 March 2002	22.4 °C15 January 2002	27.2 °C	1,942 mm	66
2001	31.2 °C7 March 2001	21.6 °C11 February 2001	27.0 °C	1,731 mm	20
2000	31.3 °C13 November 2000	22.6 °C21 January 2000	26.8 °C	1,935 mm	9
1999	30.9 °C15 February 1999	21.7 °C31 January 1999	26.7 °C	2,128 mm	19
1998	33.5 °C5 April 1998	23.9 °C16 January 1998	27.7 °C	2,192 mm	111
1997	32.6 °C28 March 1997	22.1 °C28 January 1997	27.2 °C	2,251 mm	64
1996	31.5 °C23 March 1996	22.7 °C25 December 1996	26.9 °C	2,078 mm	42
1995	32.1 °C20 March 1995	23.1 °C24 January 1995	27.1 °C	1,856 mm	59
1994	31.0 °C24 February 1994	22.8 °C12 December 1994	26.8 °C	1,903 mm	36
1993	32.0 °C7 March 1993	21.1 °C9 February 1993	26.8 °C	2,059 mm	38
1992	31.3 °C23 February 1992	22.6 °C27 December 1992	26.9 °C	1,826 mm	59
1991	31.6 °C24 February 1991	22.6 °C13 February 1991	27.1 °C	1,811 mm	53
1990	32.0 °C11 February 1990	21.4 °C20 January 1990	27.1 °C	1,915 mm	46
1989	31.3 °C30 March 1989	22.3 °C12 February 1989	26.8 °C	2,202 mm	37
1988	31.7 °C19 February 1988	22.9 °C8 February 1988	27.2 °C	2,232 mm	67
1987	32.1 °C24 March 1987	22.8 °C11 February 1987	27.3 °C	1,830 mm	67
1986	31.1 °C27 February 1986	22.8 °C22 February 1986	26.8 °C	1,389 mm	32
1985	31.0 °C11 March 1985	23.0 °C21 January 1985	26.8 °C	1,987 mm	29
1984	30.8 °C25 February 1984	22.5 °C12 December 1984	26.6 °C	2,072 mm	11
1983	31.8 °C10 February 1983	21.9 °C4 January 1983	27.3 °C	1,465 mm	80
1982	31.5 °C14 March 1982	22.8 °C16 February 1982	27.0 °C	1,783 mm	52
1981	32.5 °C15 March 1981	22.0 °C7 January 1981	26.9 °C	1,493 mm	47
1980	31.5 °C13 March 1980	22.7 °C25 January 1980	27.1 °C	1,472 mm	55
1979	31.7 °C2 March 1979	22.9 °C11 January 1979	27.1 °C	1,991 mm	69
1978	32.6 °C24 February 1978	22.9 °C19 January 1978	26.8 °C	2,376 mm	54
1977	32.3 °C25 March 1977	22.0 °C29 January 1977	26.8 °C	1,789 mm	39
1976	31.3 °C21 February 1976	22.0 °C21 January 1976	26.6 °C	1,800 mm	19
1975	31.2 °C19 February 1975	21.5 °C10 January 1975	26.4 °C	2,258 mm	14
1974	31.2 °C9 February 1974	21.5 °C16 January 1974	26.5 °C	1,500 mm	23
1973	32.8 °C18 March 1973	22.9 °C22 January 1973	26.9 °C	2,064 mm	85
1972	31.3 °C4 March 1972	22.1 °C6 January 1972	26.7 °C	2,096 mm	29
1971	31.5 °C8 March 1971	21.6 °C24 December 1971	26.4 °C	1,897 mm	24
1970	31.1 °C9 March 1970	21.8 °C2 February 1970	26.7 °C	2,166 mm	21
1969	31.7 °C5 March 1969	22.6 °C27 January 1969	26.8 °C	2,524 mm	27
1968	32.2 °C11 March 1968	21.6 °C28 January 1968	26.6 °C	2,220 mm	21
1967	31.2 °C11 April 1967	22.5 °C12 February 1967	26.5 °C	2,834 mm	16
1966	31.6 °C9 March 1966	22.9 °C28 December 1966	26.6 °C	2,720 mm	18
1965	30.8 °C25 February 1965	22.8 °C25 January 1965	26.4 °C	3,196 mm	12
1964	31.7 °C14 March 1964	22.5 °C19 January 1964	26.5 °C	2,549 mm	35
1963	30.3 °C8 May 1963	22.4 °C24 January 1963	26.4 °C	2,448 mm	5
1962	31.6 °C14 March 1962	22.4 °C16 January 1962	26.6 °C	2,512 mm	7
1961	31.5 °C31 March 1961	21.8 °C19 February 1961	26.4 °C	1,981 mm	19
1960	30.7 °C18 February 1960	22.7 °C4 February 1960	26.4 °C	2,013 mm	9
1959	32.6 °C20 March 1959	23.5 °C3 January 1959	26.8 °C	1,982 mm	38
1958	32.3 °C7 March 1958	23.0 °C5 February 1958	26.8 °C	2,238 mm	22
1957	31.5 °C17 March 1957	22.4 °C25 January 1957	26.6 °C	2,048 mm	14
1956	30.5 °C24 February 1956	21.0 °C22 January 1956	26.0 °C	2,059 mm	7
1955	31.2 °C11 March 1955	22.0 °C29 December 1955	26.1 °C	2,437 mm	8
1954	31.4 °C2 March 1954	22.8 °C29 January 1954	26.2 °C	2,446 mm	15
1953	31.4 °C10 February 1953	22.6 °C30 January 1953	26.7 °C	1,568 mm	34
1952	32.5 °C27 February 1952	22.8 °C18 January 1952	26.7 °C	1,478 mm	64
1951	31.2 °C27 March 1951	22.6 °C6 January 1951	26.6 °C	1,796 mm	12
1950	31.3 °C5 February 1950	22.9 °C2 January 1950	26.4 °C	1,308 mm	13
1949	30.3 °C20 November 1949	23.3 °C2 March 1949	26.4 °C	1,779 mm	12
1948	31.8 °C2 March 1948	23.2 °C29 December 1948	26.5 °C	1,965 mm	13
1947	30.1 °C20 February 1947	22.5 °C29 December 1947	26.4 °C	1,817 mm	4
1946	32.7 °C14 March 1946	21.3 °C16 January 1946	26.3 °C	2,395 mm	20
1945	31.7 °C9 March 1945	21.6 °C5 January 1945	26.4 °C	2,369 mm	11
1944	31.1 °C18 February 1944	22.7 °C6 February 1944	26.3 °C	2,823 mm	15
1943	31.1 °C21 February 1943	22.2 °C20 January 1943	25.8 °C	2,367 mm	11
1942	30.2 °C9 February 1942	22.0 °C4 February 1942	26.0 °C	2,268 mm	5
1941	30.8 °C24 February 1941	22.2 °C29 January 1941	26.3 °C	2,326 mm	22
1940	30.0 °C12 February 1940	22.2 °C12 January 1940	26.2 °C	2,466 mm	1

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

29.3 °C

+0.7 °C

Hot days (≥ 30 °C)

103 d/yr

+57

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2316 mm

+209 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.9 °C	0.0 °C	129 mm	+87 mm
Feb	31.0 °C	+1.4 °C	18 mm	-17 mm
Mar	30.4 °C	+0.7 °C	90 mm	+8 mm
Apr	30.0 °C	+0.5 °C	263 mm	+104 mm
May	30.0 °C	+1.0 °C	205 mm	-72 mm
Jun	29.2 °C	+1.0 °C	200 mm	-54 mm
Jul	28.8 °C	+1.0 °C	112 mm	-81 mm
Aug	28.4 °C	+0.7 °C	86 mm	-96 mm
Sep	28.8 °C	+1.0 °C	145 mm	-71 mm
Oct	29.0 °C	+1.1 °C	415 mm	+121 mm
Nov	28.6 °C	+0.3 °C	594 mm	+340 mm
Dec	29.2 °C	+0.7 °C	58 mm	-63 mm

The year's extremes

Hottest day

33.2 °C

24 Feb 2025

Coldest day

23.6 °C

4 Feb 2025

Wettest day

226.4 mm

28 Nov 2025

Windiest day

47.0 km/h

28 Nov 2025

Strongest gust

82.1 km/h

28 Nov 2025

Hottest feels-like

39.4 °C

25 Mar 2025

Coldest feels-like

23.2 °C

28 Nov 2025

Sunniest day

12.1 h

7 Jun 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 Negombo?

Negombo has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.9 °C and it receives 2,107 mm of precipitation per year.

What is the hottest day ever recorded in Negombo?

The hottest day measured in Negombo between 1940 and 2025 was 11 March 2010, reaching 33.6 °C.

What is the coldest day in Negombo?

The coldest day measured in Negombo between 1940 and 2025 was 22 January 1956, at 21.0 °C.

Does it snow in Negombo?

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

Has the climate of Negombo warmed?

Yes: Negombo warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Negombo?

The wettest day measured in Negombo between 1940 and 2025 was 28 November 2025, with 226 mm of rain in 24 hours.

What was the windiest day in Negombo?

The windiest day measured in Negombo between 1940 and 2025 was 13 November 1992, with winds reaching 47.6 km/h.

What is the warmest month in Negombo?

The warmest month in Negombo is April (27.8 °C on average); the coldest is January (26.2 °C).

How much does it rain in Negombo?

Negombo receives on average 2,107 mm of precipitation per year, spread over about 259 rainy days.

Is it sunny in Negombo?

Negombo gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Are there tropical nights in Negombo?

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

What was the most extreme apparent temperature in Negombo?

In Negombo, between 1940 and 2025, the highest apparent temperature reached 41.1 °C on 25 March 2024, and the lowest was 20.2 °C on 13 February 1956.

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