Katunayaka climate — normals and trends

Q: What is the climate of Katunayaka?

Katunayaka has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 2,303 mm of precipitation per year.

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

The hottest day measured in Katunayaka between 1940 and 2025 was 22 February 2010, reaching 37.9 °C.

Q: What is the coldest day in Katunayaka?

The coldest day measured in Katunayaka between 1940 and 2025 was 11 February 2001, at 17.2 °C.

Q: Does it snow in Katunayaka?

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

Q: Has the climate of Katunayaka warmed?

Yes: Katunayaka warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Katunayaka?

The wettest day measured in Katunayaka between 1940 and 2025 was 28 November 2025, with 264 mm of rain in 24 hours.

Q: What was the windiest day in Katunayaka?

The windiest day measured in Katunayaka between 1940 and 2025 was 13 November 1992, with winds reaching 35.3 km/h.

Q: What is the warmest month in Katunayaka?

The warmest month in Katunayaka is March (27.8 °C on average); the coldest is December (25.8 °C).

Q: How much does it rain in Katunayaka?

Katunayaka receives on average 2,303 mm of precipitation per year, spread over about 268 rainy days.

Q: Is it sunny in Katunayaka?

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

Katunayaka (Sri Lanka) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 2,303 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 March (27.8 °C on average) and the coldest is December (25.8 °C). Rainfall peaks in October.

Katunayaka averages 0 frost days, 158 hot days (≥ 30 °C) and 268 rainy days per year.

Katunayaka has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.9 °C (on 22 February 2010) and the coldest 17.2 °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

KatunayakaWestern Province

coords: 7.17°, 79.89°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthMarchColdest monthDecemberWettest monthOctoberDriest monthFebruary

Mean daily temperature

26.6°C

Average daily high

29.9°C

Average daily low

24.1°C

Annual rainfall

2,303mm

Sunshine / day

9.8h

Mean relative humidity

83%

Average peak wind

15.0km/h

Seasonal range

2.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

158 d/yr

Rainy days (≥ 1 mm)

268 d/yr

Annual snowfall

0.0 cm

Average feels-like high

35.0 °C

Average feels-like low

28.2 °C

Average peak gust

33.8 km/h

Tropical nights (≥ 20 °C)

363 d/yr

Solar radiation

18.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.80 · 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

37.9 °C

22 February 2010

Coldest day

17.2 °C

11 February 2001

Wettest day

264 mm

28 November 2025

Windiest day

35.3 km/h

13 November 1992

Strongest gust

74.5 km/h

28 November 2025

Hottest feels-like

43.8 °C

6 April 1998

Coldest feels-like

17.9 °C

25 January 2006

Sunniest day

12.2 h

25 May 1953

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.6 °C24 February 2025	21.1 °C30 November 2025	27.4 °C	2,717 mm	261
2024	37.4 °C11 March 2024	20.6 °C25 January 2024	27.9 °C	2,881 mm	294
2023	35.9 °C9 March 2023	19.5 °C13 January 2023	27.5 °C	2,871 mm	281
2022	35.8 °C9 March 2022	20.1 °C21 January 2022	27.3 °C	2,239 mm	221
2021	35.6 °C21 February 2021	21.0 °C25 December 2021	27.3 °C	2,667 mm	238
2020	36.4 °C25 February 2020	20.5 °C15 January 2020	27.8 °C	2,007 mm	262
2019	37.5 °C25 March 2019	20.7 °C19 January 2019	27.6 °C	2,156 mm	267
2018	35.7 °C15 February 2018	19.8 °C7 January 2018	27.1 °C	2,318 mm	220
2017	35.9 °C22 March 2017	18.7 °C8 January 2017	27.3 °C	2,114 mm	232
2016	36.9 °C5 March 2016	18.6 °C24 December 2016	27.8 °C	2,022 mm	232
2015	35.6 °C26 March 2015	20.2 °C18 February 2015	27.4 °C	2,728 mm	267
2014	36.8 °C26 March 2014	20.4 °C6 February 2014	27.3 °C	2,542 mm	221
2013	34.6 °C20 March 2013	20.0 °C30 January 2013	27.0 °C	2,327 mm	186
2012	33.7 °C3 February 2012	20.3 °C16 January 2012	27.1 °C	2,137 mm	250
2011	34.9 °C17 March 2011	18.4 °C28 December 2011	27.0 °C	2,446 mm	209
2010	37.9 °C22 February 2010	19.5 °C6 January 2010	27.3 °C	2,605 mm	197
2009	35.7 °C21 February 2009	19.6 °C2 January 2009	27.2 °C	2,296 mm	199
2008	34.8 °C22 February 2008	19.7 °C25 February 2008	26.9 °C	2,691 mm	217
2007	35.8 °C28 March 2007	19.0 °C1 January 2007	27.2 °C	2,310 mm	211
2006	34.7 °C20 February 2006	17.5 °C25 January 2006	27.0 °C	2,818 mm	191
2005	34.8 °C5 March 2005	20.3 °C27 December 2005	27.1 °C	2,202 mm	189
2004	36.1 °C10 March 2004	18.3 °C22 December 2004	27.2 °C	2,511 mm	188
2003	34.2 °C8 March 2003	19.0 °C2 January 2003	27.0 °C	2,360 mm	190
2002	35.1 °C3 March 2002	19.3 °C29 December 2002	27.0 °C	2,228 mm	167
2001	35.5 °C7 March 2001	17.2 °C11 February 2001	26.8 °C	2,031 mm	146
2000	33.3 °C22 March 2000	20.4 °C21 January 2000	26.4 °C	2,150 mm	119
1999	33.8 °C20 March 1999	18.1 °C30 January 1999	26.4 °C	2,290 mm	105
1998	37.7 °C27 March 1998	21.6 °C23 December 1998	27.5 °C	2,419 mm	181
1997	36.7 °C27 March 1997	19.7 °C28 January 1997	27.0 °C	2,424 mm	212
1996	35.0 °C23 March 1996	19.8 °C25 December 1996	26.7 °C	2,433 mm	162
1995	36.1 °C5 March 1995	20.9 °C24 January 1995	27.0 °C	2,168 mm	183
1994	33.8 °C10 March 1994	20.3 °C12 December 1994	26.6 °C	2,251 mm	149
1993	34.7 °C7 March 1993	17.8 °C9 February 1993	26.7 °C	2,361 mm	155
1992	35.4 °C23 February 1992	20.1 °C14 February 1992	26.8 °C	2,016 mm	160
1991	34.6 °C18 February 1991	19.0 °C1 December 1991	26.9 °C	2,018 mm	183
1990	34.7 °C11 February 1990	18.8 °C20 January 1990	26.8 °C	2,274 mm	163
1989	35.7 °C7 April 1989	19.6 °C12 February 1989	26.7 °C	2,581 mm	171
1988	34.3 °C11 February 1988	19.0 °C29 November 1988	26.9 °C	2,528 mm	197
1987	35.8 °C24 March 1987	20.6 °C2 February 1987	27.2 °C	1,957 mm	201
1986	33.9 °C25 December 1986	20.1 °C22 February 1986	26.7 °C	1,560 mm	183
1985	34.0 °C10 March 1985	19.7 °C22 February 1985	26.5 °C	2,294 mm	136
1984	32.4 °C23 March 1984	19.5 °C13 December 1984	26.2 °C	2,384 mm	106
1983	35.1 °C8 March 1983	18.5 °C4 January 1983	27.3 °C	1,630 mm	201
1982	35.0 °C5 March 1982	20.5 °C16 February 1982	26.8 °C	1,933 mm	172
1981	35.7 °C15 March 1981	18.7 °C7 January 1981	26.7 °C	1,597 mm	155
1980	35.0 °C3 March 1980	20.2 °C25 January 1980	27.0 °C	1,716 mm	202
1979	35.5 °C26 March 1979	20.7 °C12 January 1979	27.0 °C	2,255 mm	195
1978	35.5 °C22 March 1978	20.7 °C28 November 1978	26.7 °C	2,673 mm	176
1977	35.5 °C4 March 1977	19.4 °C12 January 1977	26.5 °C	1,994 mm	155
1976	35.2 °C1 March 1976	19.9 °C26 February 1976	26.5 °C	1,839 mm	161
1975	34.4 °C19 February 1975	17.6 °C3 December 1975	26.1 °C	2,386 mm	118
1974	34.4 °C23 March 1974	18.3 °C16 January 1974	26.2 °C	1,574 mm	152
1973	36.6 °C5 March 1973	20.0 °C17 January 1973	26.7 °C	2,140 mm	156
1972	35.0 °C5 March 1972	17.9 °C22 November 1972	26.5 °C	2,275 mm	151
1971	34.6 °C16 March 1971	18.0 °C13 February 1971	26.0 °C	1,996 mm	108
1970	34.2 °C20 March 1970	18.6 °C4 December 1970	26.3 °C	2,338 mm	111
1969	34.5 °C6 March 1969	19.7 °C3 January 1969	26.5 °C	2,585 mm	148
1968	35.8 °C11 March 1968	19.1 °C28 January 1968	26.3 °C	2,607 mm	125
1967	34.8 °C27 February 1967	19.4 °C10 February 1967	26.2 °C	2,872 mm	116
1966	34.7 °C8 March 1966	19.2 °C2 January 1966	26.2 °C	2,771 mm	106
1965	33.7 °C6 March 1965	21.1 °C10 January 1965	26.1 °C	3,274 mm	116
1964	34.1 °C14 March 1964	19.7 °C19 January 1964	26.1 °C	2,675 mm	110
1963	32.7 °C22 February 1963	20.2 °C24 January 1963	25.9 °C	2,578 mm	88
1962	33.9 °C14 March 1962	20.3 °C2 March 1962	26.2 °C	2,603 mm	96
1961	34.2 °C31 March 1961	20.0 °C19 February 1961	26.1 °C	1,947 mm	97
1960	33.6 °C9 February 1960	19.7 °C28 January 1960	26.0 °C	2,272 mm	82
1959	37.0 °C20 March 1959	22.0 °C7 January 1959	26.5 °C	2,062 mm	134
1958	35.1 °C6 March 1958	20.2 °C5 February 1958	26.4 °C	2,451 mm	113
1957	35.6 °C17 March 1957	20.1 °C26 January 1957	26.3 °C	2,316 mm	113
1956	33.7 °C5 March 1956	17.6 °C22 January 1956	25.6 °C	2,402 mm	74
1955	33.0 °C13 March 1955	19.8 °C5 February 1955	25.6 °C	2,840 mm	46
1954	34.2 °C6 March 1954	19.7 °C29 January 1954	25.7 °C	2,843 mm	61
1953	36.1 °C14 February 1953	20.1 °C30 January 1953	26.5 °C	1,592 mm	176
1952	37.6 °C27 February 1952	19.9 °C16 January 1952	26.5 °C	1,625 mm	168
1951	34.7 °C3 March 1951	20.3 °C6 January 1951	26.2 °C	1,968 mm	139
1950	35.0 °C5 February 1950	19.7 °C2 January 1950	26.1 °C	1,408 mm	141
1949	34.0 °C12 March 1949	21.0 °C6 January 1949	26.0 °C	1,652 mm	129
1948	34.1 °C3 March 1948	21.8 °C20 February 1948	26.1 °C	2,202 mm	92
1947	32.4 °C17 March 1947	20.1 °C29 December 1947	25.9 °C	1,995 mm	64
1946	36.2 °C14 March 1946	19.0 °C27 January 1946	25.9 °C	2,433 mm	86
1945	35.2 °C26 March 1945	17.9 °C14 December 1945	25.9 °C	2,526 mm	95
1944	33.9 °C20 February 1944	19.3 °C7 February 1944	25.7 °C	2,698 mm	74
1943	34.2 °C15 March 1943	19.1 °C20 January 1943	25.3 °C	2,396 mm	55
1942	32.1 °C9 February 1942	19.4 °C3 February 1942	25.3 °C	2,621 mm	53
1941	34.6 °C3 April 1941	19.1 °C29 January 1941	25.8 °C	2,434 mm	103
1940	32.9 °C3 March 1940	19.9 °C12 January 1940	25.6 °C	2,742 mm	90

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

30.8 °C

+0.9 °C

Hot days (≥ 30 °C)

261 d/yr

+103

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2717 mm

+414 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.0 °C	-0.4 °C	136 mm	+84 mm
Feb	33.8 °C	+1.7 °C	13 mm	-31 mm
Mar	33.3 °C	+1.0 °C	90 mm	-9 mm
Apr	31.8 °C	+0.6 °C	238 mm	+64 mm
May	31.1 °C	+1.1 °C	220 mm	-30 mm
Jun	30.3 °C	+1.4 °C	228 mm	-44 mm
Jul	30.2 °C	+1.5 °C	181 mm	-60 mm
Aug	29.7 °C	+1.1 °C	127 mm	-99 mm
Sep	30.1 °C	+1.3 °C	164 mm	-65 mm
Oct	30.1 °C	+1.1 °C	551 mm	+236 mm
Nov	29.4 °C	+0.1 °C	696 mm	+421 mm
Dec	30.6 °C	+1.1 °C	75 mm	-54 mm

The year's extremes

Hottest day

36.6 °C

24 Feb 2025

Coldest day

21.1 °C

30 Nov 2025

Wettest day

264.1 mm

28 Nov 2025

Windiest day

35.3 km/h

28 Nov 2025

Strongest gust

74.5 km/h

28 Nov 2025

Hottest feels-like

42.2 °C

21 Mar 2025

Coldest feels-like

23.6 °C

4 Feb 2025

Sunniest day

12.0 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 Katunayaka?

Katunayaka has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 2,303 mm of precipitation per year.

What is the hottest day ever recorded in Katunayaka?

The hottest day measured in Katunayaka between 1940 and 2025 was 22 February 2010, reaching 37.9 °C.

What is the coldest day in Katunayaka?

The coldest day measured in Katunayaka between 1940 and 2025 was 11 February 2001, at 17.2 °C.

Does it snow in Katunayaka?

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

Has the climate of Katunayaka warmed?

Yes: Katunayaka warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Katunayaka?

The wettest day measured in Katunayaka between 1940 and 2025 was 28 November 2025, with 264 mm of rain in 24 hours.

What was the windiest day in Katunayaka?

The windiest day measured in Katunayaka between 1940 and 2025 was 13 November 1992, with winds reaching 35.3 km/h.

What is the warmest month in Katunayaka?

The warmest month in Katunayaka is March (27.8 °C on average); the coldest is December (25.8 °C).

How much does it rain in Katunayaka?

Katunayaka receives on average 2,303 mm of precipitation per year, spread over about 268 rainy days.

Is it sunny in Katunayaka?

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

Are there tropical nights in Katunayaka?

Yes: Katunayaka has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Katunayaka?

In Katunayaka, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 6 April 1998, and the lowest was 17.9 °C on 25 January 2006.

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