Mannar climate — normals and trends

Q: What is the climate of Mannar?

Mannar has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 949 mm of precipitation per year.

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

The hottest day measured in Mannar between 1940 and 2025 was 9 April 2024, reaching 34.9 °C.

Q: What is the coldest day in Mannar?

The coldest day measured in Mannar between 1940 and 2025 was 11 February 2001, at 19.7 °C.

Q: Does it snow in Mannar?

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

Q: Has the climate of Mannar warmed?

Yes: Mannar warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Mannar?

The wettest day measured in Mannar between 1940 and 2025 was 10 May 1972, with 181 mm of rain in 24 hours.

Q: What was the windiest day in Mannar?

The windiest day measured in Mannar between 1940 and 2025 was 24 November 1978, with winds reaching 54.6 km/h.

Q: What is the warmest month in Mannar?

The warmest month in Mannar is May (29.0 °C on average); the coldest is January (25.3 °C).

Q: How much does it rain in Mannar?

Mannar receives on average 949 mm of precipitation per year, spread over about 137 rainy days.

Q: Is it sunny in Mannar?

Mannar gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Mannar (Sri Lanka) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.4 °C and it receives 949 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 May (29.0 °C on average) and the coldest is January (25.3 °C). Rainfall peaks in November.

Mannar averages 0 frost days, 144 hot days (≥ 30 °C) and 137 rainy days per year.

Mannar has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.9 °C (on 9 April 2024) and the coldest 19.7 °C (on 11 February 2001).

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

MannarNorthern Province

coords: 8.99°, 79.88°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMayColdest monthJanuaryWettest monthNovemberDriest monthFebruary

Mean daily temperature

27.4°C

Average daily high

29.4°C

Average daily low

25.7°C

Annual rainfall

949mm

Sunshine / day

10.6h

Mean relative humidity

78%

Average peak wind

24.9km/h

Seasonal range

3.7°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

144 d/yr

Rainy days (≥ 1 mm)

137 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.0 °C

Average feels-like low

28.3 °C

Average peak gust

40.1 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

19.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °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

34.9 °C

9 April 2024

Coldest day

19.7 °C

11 February 2001

Wettest day

181 mm

10 May 1972

Windiest day

54.6 km/h

24 November 1978

Strongest gust

88.6 km/h

25 November 2008

Hottest feels-like

41.3 °C

27 April 2024

Coldest feels-like

19.3 °C

8 December 2022

Sunniest day

12.5 h

1 June 1958

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.9 °C14 May 2025	22.5 °C16 February 2025	27.9 °C	1,390 mm	211
2024	34.9 °C9 April 2024	23.3 °C16 January 2024	28.4 °C	1,429 mm	239
2023	33.5 °C11 April 2023	21.8 °C13 January 2023	27.9 °C	1,480 mm	201
2022	31.9 °C2 July 2022	21.5 °C8 December 2022	27.5 °C	1,295 mm	127
2021	32.1 °C23 March 2021	22.2 °C12 February 2021	27.7 °C	1,457 mm	183
2020	34.7 °C20 April 2020	22.2 °C15 January 2020	28.0 °C	899 mm	230
2019	34.5 °C25 March 2019	22.5 °C19 January 2019	28.0 °C	1,069 mm	213
2018	32.7 °C3 May 2018	21.7 °C7 January 2018	27.4 °C	1,029 mm	147
2017	33.1 °C31 March 2017	21.3 °C7 February 2017	27.9 °C	1,027 mm	193
2016	33.1 °C13 April 2016	21.1 °C25 December 2016	28.1 °C	716 mm	212
2015	32.5 °C10 April 2015	21.9 °C19 February 2015	27.7 °C	1,346 mm	185
2014	33.8 °C26 March 2014	21.7 °C6 February 2014	27.7 °C	1,482 mm	208
2013	32.9 °C8 April 2013	21.9 °C19 January 2013	27.7 °C	707 mm	168
2012	32.6 °C24 March 2012	21.8 °C18 January 2012	27.8 °C	840 mm	218
2011	31.6 °C21 October 2011	21.5 °C20 January 2011	27.5 °C	1,292 mm	166
2010	33.4 °C15 April 2010	22.1 °C5 January 2010	27.8 °C	1,380 mm	181
2009	32.9 °C3 April 2009	20.5 °C13 February 2009	27.7 °C	972 mm	179
2008	31.6 °C3 July 2008	21.5 °C19 January 2008	27.5 °C	1,412 mm	153
2007	33.2 °C4 April 2007	21.5 °C26 December 2007	27.6 °C	884 mm	161
2006	32.0 °C8 April 2006	20.2 °C24 January 2006	27.6 °C	878 mm	164
2005	32.8 °C27 March 2005	21.6 °C11 January 2005	27.7 °C	1,281 mm	193
2004	32.8 °C25 April 2004	21.0 °C1 March 2004	27.5 °C	1,032 mm	164
2003	33.4 °C25 April 2003	22.3 °C1 January 2003	27.8 °C	794 mm	197
2002	32.3 °C20 March 2002	21.5 °C15 January 2002	27.5 °C	892 mm	175
2001	33.0 °C1 April 2001	19.7 °C11 February 2001	27.5 °C	1,021 mm	154
2000	32.7 °C22 May 2000	21.2 °C23 January 2000	27.4 °C	897 mm	144
1999	32.6 °C25 March 1999	20.8 °C31 January 1999	27.2 °C	944 mm	105
1998	34.2 °C6 April 1998	22.6 °C16 January 1998	28.1 °C	913 mm	207
1997	33.5 °C26 March 1997	21.0 °C1 February 1997	27.7 °C	898 mm	210
1996	32.9 °C25 March 1996	22.2 °C20 January 1996	27.4 °C	859 mm	140
1995	32.8 °C2 April 1995	22.3 °C1 March 1995	27.5 °C	787 mm	168
1994	32.5 °C2 May 1994	22.4 °C30 January 1994	27.2 °C	778 mm	124
1993	33.0 °C21 April 1993	20.9 °C9 February 1993	27.4 °C	985 mm	153
1992	32.7 °C8 April 1992	21.5 °C15 February 1992	27.3 °C	686 mm	161
1991	33.8 °C18 April 1991	21.3 °C12 February 1991	27.6 °C	669 mm	185
1990	33.4 °C16 March 1990	20.4 °C20 January 1990	27.7 °C	811 mm	183
1989	33.5 °C6 April 1989	20.2 °C5 February 1989	27.3 °C	628 mm	148
1988	33.2 °C24 March 1988	20.4 °C8 February 1988	27.7 °C	705 mm	182
1987	33.9 °C1 April 1987	22.2 °C11 February 1987	27.9 °C	739 mm	201
1986	32.1 °C18 April 1986	21.8 °C2 February 1986	27.3 °C	836 mm	132
1985	32.8 °C16 April 1985	22.2 °C6 February 1985	27.4 °C	710 mm	126
1984	31.8 °C16 May 1984	21.5 °C14 December 1984	26.9 °C	1,306 mm	68
1983	33.7 °C1 April 1983	20.2 °C31 January 1983	27.8 °C	643 mm	212
1982	34.4 °C27 April 1982	21.6 °C16 February 1982	27.5 °C	603 mm	186
1981	32.9 °C27 May 1981	20.3 °C7 January 1981	27.3 °C	743 mm	159
1980	32.6 °C10 May 1980	20.4 °C30 January 1980	27.5 °C	599 mm	183
1979	33.8 °C30 April 1979	22.2 °C31 January 1979	27.6 °C	759 mm	180
1978	32.7 °C20 March 1978	21.6 °C19 January 1978	27.3 °C	772 mm	128
1977	32.8 °C14 April 1977	19.9 °C28 January 1977	27.1 °C	1,015 mm	143
1976	32.4 °C25 March 1976	20.0 °C26 February 1976	27.1 °C	759 mm	145
1975	33.1 °C28 March 1975	20.8 °C10 January 1975	27.0 °C	1,102 mm	118
1974	32.5 °C20 April 1974	20.9 °C6 February 1974	27.1 °C	477 mm	121
1973	33.2 °C2 May 1973	21.4 °C16 January 1973	27.4 °C	761 mm	185
1972	32.7 °C7 April 1972	21.3 °C6 February 1972	27.2 °C	1,046 mm	145
1971	32.5 °C4 May 1971	21.5 °C10 February 1971	27.0 °C	886 mm	130
1970	32.2 °C20 March 1970	21.2 °C2 February 1970	27.3 °C	779 mm	142
1969	32.8 °C31 March 1969	20.7 °C30 January 1969	27.4 °C	1,183 mm	152
1968	32.1 °C6 April 1968	20.4 °C15 February 1968	27.0 °C	820 mm	85
1967	33.0 °C9 April 1967	20.5 °C10 February 1967	27.0 °C	1,310 mm	110
1966	32.3 °C1 April 1966	21.8 °C2 January 1966	27.0 °C	1,193 mm	101
1965	32.3 °C12 April 1965	21.8 °C9 March 1965	26.9 °C	1,278 mm	73
1964	33.2 °C10 April 1964	21.6 °C29 January 1964	27.1 °C	1,001 mm	114
1963	33.4 °C10 May 1963	20.8 °C12 February 1963	26.9 °C	1,098 mm	128
1962	32.2 °C20 April 1962	22.1 °C10 January 1962	27.1 °C	955 mm	107
1961	32.1 °C13 April 1961	21.0 °C28 February 1961	26.9 °C	776 mm	66
1960	32.2 °C26 March 1960	21.6 °C3 February 1960	26.9 °C	909 mm	92
1959	33.0 °C21 March 1959	22.4 °C24 January 1959	27.3 °C	696 mm	143
1958	32.5 °C16 April 1958	21.6 °C5 February 1958	27.2 °C	982 mm	112
1957	33.4 °C9 May 1957	20.5 °C6 February 1957	27.1 °C	1,037 mm	102
1956	33.0 °C7 April 1956	20.2 °C21 January 1956	26.6 °C	796 mm	75
1955	32.7 °C15 April 1955	20.9 °C5 February 1955	26.6 °C	1,104 mm	45
1954	33.1 °C5 March 1954	21.5 °C31 December 1954	26.8 °C	1,055 mm	83
1953	32.8 °C21 April 1953	21.1 °C31 January 1953	27.4 °C	687 mm	151
1952	33.1 °C31 March 1952	22.2 °C15 January 1952	27.5 °C	251 mm	171
1951	32.9 °C27 March 1951	21.6 °C4 January 1951	27.3 °C	735 mm	125
1950	33.0 °C26 April 1950	21.1 °C3 January 1950	27.3 °C	227 mm	130
1949	32.1 °C11 April 1949	21.6 °C23 January 1949	27.0 °C	531 mm	84
1948	32.0 °C2 March 1948	22.5 °C26 February 1948	27.1 °C	1,020 mm	132
1947	31.5 °C5 July 1947	22.1 °C8 February 1947	26.9 °C	787 mm	63
1946	33.0 °C26 April 1946	21.4 °C27 January 1946	27.0 °C	1,175 mm	99
1945	32.7 °C10 May 1945	19.8 °C5 January 1945	27.0 °C	887 mm	108
1944	32.1 °C16 April 1944	21.6 °C6 February 1944	26.8 °C	1,502 mm	75
1943	32.1 °C15 March 1943	21.2 °C18 February 1943	26.5 °C	1,041 mm	49
1942	30.7 °C31 March 1942	21.5 °C24 January 1942	26.6 °C	1,087 mm	24
1941	32.8 °C29 April 1941	20.6 °C26 January 1941	27.1 °C	1,221 mm	121
1940	32.8 °C2 April 1940	21.0 °C18 January 1940	26.7 °C	1,157 mm	39

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

29.9 °C

+0.5 °C

Hot days (≥ 30 °C)

211 d/yr

+67

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1391 mm

+442 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.9 °C	+0.2 °C	106 mm	+51 mm
Feb	29.7 °C	+0.6 °C	35 mm	+7 mm
Mar	30.6 °C	-0.1 °C	54 mm	+22 mm
Apr	31.0 °C	0.0 °C	69 mm	-6 mm
May	31.5 °C	+0.7 °C	62 mm	-14 mm
Jun	31.0 °C	+0.9 °C	14 mm	-15 mm
Jul	30.9 °C	+1.1 °C	25 mm	-4 mm
Aug	30.2 °C	+0.5 °C	21 mm	-11 mm
Sep	30.2 °C	+0.6 °C	39 mm	-19 mm
Oct	29.9 °C	+0.9 °C	259 mm	+86 mm
Nov	28.3 °C	+0.2 °C	594 mm	+369 mm
Dec	27.5 °C	0.0 °C	113 mm	-24 mm

The year's extremes

Hottest day

32.9 °C

14 May 2025

Coldest day

22.5 °C

16 Feb 2025

Wettest day

128.7 mm

28 Nov 2025

Windiest day

45.5 km/h

29 May 2025

Strongest gust

75.6 km/h

30 May 2025

Hottest feels-like

39.6 °C

31 Mar 2025

Coldest feels-like

23.2 °C

29 Nov 2025

Sunniest day

12.2 h

23 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 Mannar?

Mannar has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 949 mm of precipitation per year.

What is the hottest day ever recorded in Mannar?

The hottest day measured in Mannar between 1940 and 2025 was 9 April 2024, reaching 34.9 °C.

What is the coldest day in Mannar?

The coldest day measured in Mannar between 1940 and 2025 was 11 February 2001, at 19.7 °C.

Does it snow in Mannar?

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

Has the climate of Mannar warmed?

Yes: Mannar warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Mannar?

The wettest day measured in Mannar between 1940 and 2025 was 10 May 1972, with 181 mm of rain in 24 hours.

What was the windiest day in Mannar?

The windiest day measured in Mannar between 1940 and 2025 was 24 November 1978, with winds reaching 54.6 km/h.

What is the warmest month in Mannar?

The warmest month in Mannar is May (29.0 °C on average); the coldest is January (25.3 °C).

How much does it rain in Mannar?

Mannar receives on average 949 mm of precipitation per year, spread over about 137 rainy days.

Is it sunny in Mannar?

Mannar gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Are there tropical nights in Mannar?

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

What was the most extreme apparent temperature in Mannar?

In Mannar, between 1940 and 2025, the highest apparent temperature reached 41.3 °C on 27 April 2024, and the lowest was 19.3 °C on 8 December 2022.

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