Alor Star climate — normals and trends

Q: What is the climate of Alor Star?

Alor Star has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 2,126 mm of precipitation per year.

Q: What is the hottest day ever recorded in Alor Star?

The hottest day measured in Alor Star between 1940 and 2025 was 18 March 2010, reaching 34.9 °C.

Q: What is the coldest day in Alor Star?

The coldest day measured in Alor Star between 1940 and 2025 was 20 January 1976, at 21.4 °C.

Q: Does it snow in Alor Star?

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

Q: Has the climate of Alor Star warmed?

Yes: Alor Star warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Alor Star?

The wettest day measured in Alor Star between 1940 and 2025 was 8 December 1996, with 167 mm of rain in 24 hours.

Q: What was the windiest day in Alor Star?

The windiest day measured in Alor Star between 1940 and 2025 was 24 November 2025, with winds reaching 32.9 km/h.

Q: What is the warmest month in Alor Star?

The warmest month in Alor Star is June (27.8 °C on average); the coldest is November (26.4 °C).

Q: How much does it rain in Alor Star?

Alor Star receives on average 2,126 mm of precipitation per year, spread over about 258 rainy days.

Q: Is it sunny in Alor Star?

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

Alor Star (Malaysia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 2,126 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 June (27.8 °C on average) and the coldest is November (26.4 °C). Rainfall peaks in October.

Alor Star averages 0 frost days, 121 hot days (≥ 30 °C) and 258 rainy days per year.

Alor Star has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.9 °C (on 18 March 2010) and the coldest 21.4 °C (on 20 January 1976).

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

Alor StarKedah

coords: 6.12°, 100.36°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthJuneColdest monthNovemberWettest monthOctoberDriest monthJanuary

Mean daily temperature

27.1°C

Average daily high

29.5°C

Average daily low

25.3°C

Annual rainfall

2,126mm

Sunshine / day

10.1h

Mean relative humidity

81%

Average peak wind

15.5km/h

Seasonal range

1.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

121 d/yr

Rainy days (≥ 1 mm)

258 d/yr

Annual snowfall

0.0 cm

Average feels-like high

35.2 °C

Average feels-like low

29.5 °C

Average peak gust

27.5 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

19.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.78 · 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

18 March 2010

Coldest day

21.4 °C

20 January 1976

Wettest day

167 mm

8 December 1996

Windiest day

32.9 km/h

24 November 2025

Strongest gust

61.9 km/h

25 November 2025

Hottest feels-like

41.6 °C

29 April 2024

Coldest feels-like

21.5 °C

6 December 1944

Sunniest day

12.4 h

1 July 1949

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.9 °C21 March 2025	23.2 °C31 January 2025	27.9 °C	2,515 mm	229
2024	33.8 °C11 March 2024	24.7 °C14 January 2024	28.3 °C	2,777 mm	254
2023	33.8 °C13 March 2023	23.6 °C17 January 2023	27.9 °C	2,687 mm	213
2022	32.7 °C12 January 2022	23.7 °C28 December 2022	27.6 °C	2,487 mm	164
2021	33.7 °C14 February 2021	23.7 °C23 February 2021	27.8 °C	2,304 mm	193
2020	33.6 °C14 March 2020	24.1 °C4 February 2020	27.9 °C	2,187 mm	210
2019	33.3 °C10 February 2019	23.5 °C11 February 2019	27.9 °C	1,756 mm	212
2018	32.2 °C22 March 2018	22.9 °C11 February 2018	27.6 °C	2,139 mm	163
2017	32.1 °C18 October 2017	23.9 °C22 December 2017	27.6 °C	2,624 mm	154
2016	34.3 °C24 January 2016	24.5 °C2 December 2016	28.2 °C	2,152 mm	213
2015	33.2 °C27 March 2015	23.2 °C17 January 2015	27.7 °C	1,959 mm	198
2014	34.2 °C9 March 2014	22.6 °C2 February 2014	27.7 °C	2,172 mm	175
2013	32.9 °C2 February 2013	23.9 °C30 December 2013	27.6 °C	2,170 mm	164
2012	32.1 °C12 February 2012	24.2 °C7 January 2012	27.4 °C	2,413 mm	140
2011	32.2 °C21 February 2011	22.8 °C21 January 2011	27.4 °C	2,303 mm	145
2010	34.9 °C18 March 2010	24.2 °C16 January 2010	27.8 °C	2,509 mm	195
2009	32.6 °C17 February 2009	23.1 °C11 January 2009	27.5 °C	2,262 mm	176
2008	33.3 °C13 February 2008	24.1 °C10 February 2008	27.3 °C	2,646 mm	124
2007	32.4 °C11 March 2007	22.8 °C31 January 2007	27.4 °C	2,590 mm	152
2006	33.9 °C15 March 2006	24.4 °C16 January 2006	27.6 °C	2,099 mm	152
2005	34.2 °C21 February 2005	23.8 °C23 December 2005	27.8 °C	2,163 mm	187
2004	33.3 °C13 February 2004	23.5 °C15 December 2004	27.7 °C	1,799 mm	211
2003	33.6 °C28 January 2003	23.9 °C27 January 2003	27.6 °C	2,020 mm	174
2002	33.6 °C15 February 2002	23.8 °C2 January 2002	27.7 °C	1,579 mm	197
2001	32.9 °C28 February 2001	23.7 °C1 January 2001	27.4 °C	2,272 mm	125
2000	32.0 °C6 March 2000	23.6 °C27 January 2000	27.2 °C	2,535 mm	117
1999	32.8 °C27 February 1999	22.4 °C26 December 1999	27.0 °C	2,615 mm	70
1998	34.5 °C29 March 1998	24.3 °C16 December 1998	27.9 °C	2,488 mm	183
1997	32.2 °C31 March 1997	21.6 °C3 January 1997	27.3 °C	1,935 mm	121
1996	32.7 °C19 February 1996	21.6 °C4 January 1996	27.1 °C	2,671 mm	112
1995	33.4 °C14 March 1995	23.9 °C14 March 1995	27.3 °C	2,523 mm	125
1994	33.7 °C2 March 1994	22.8 °C19 January 1994	27.2 °C	1,858 mm	120
1993	32.6 °C4 February 1993	23.2 °C31 January 1993	27.1 °C	2,455 mm	116
1992	32.8 °C20 March 1992	23.4 °C13 January 1992	27.2 °C	1,924 mm	113
1991	34.0 °C21 February 1991	23.5 °C9 January 1991	27.4 °C	1,965 mm	148
1990	33.5 °C6 January 1990	23.4 °C25 December 1990	27.5 °C	1,995 mm	142
1989	32.9 °C3 February 1989	23.3 °C15 February 1989	27.3 °C	2,151 mm	149
1988	32.8 °C16 January 1988	23.0 °C14 December 1988	27.4 °C	2,654 mm	152
1987	33.1 °C22 February 1987	23.6 °C4 January 1987	27.5 °C	2,479 mm	165
1986	33.9 °C10 February 1986	22.6 °C16 December 1986	27.1 °C	2,158 mm	112
1985	32.5 °C1 April 1985	23.2 °C17 January 1985	27.0 °C	2,175 mm	96
1984	31.6 °C22 March 1984	23.1 °C21 February 1984	26.8 °C	2,161 mm	61
1983	33.3 °C18 April 1983	23.1 °C24 December 1983	27.4 °C	1,793 mm	156
1982	33.1 °C30 January 1982	23.2 °C20 January 1982	27.2 °C	1,805 mm	117
1981	32.2 °C31 January 1981	22.3 °C14 January 1981	27.2 °C	1,788 mm	144
1980	33.7 °C17 February 1980	23.0 °C10 February 1980	27.2 °C	2,149 mm	125
1979	33.1 °C21 January 1979	23.2 °C9 January 1979	27.4 °C	1,943 mm	172
1978	33.0 °C22 January 1978	23.2 °C29 November 1978	27.2 °C	1,708 mm	146
1977	33.8 °C26 March 1977	22.4 °C16 January 1977	27.2 °C	1,628 mm	158
1976	33.3 °C25 February 1976	21.4 °C20 January 1976	26.7 °C	2,109 mm	77
1975	32.0 °C20 February 1975	22.6 °C27 January 1975	26.7 °C	2,091 mm	69
1974	32.7 °C14 March 1974	22.0 °C12 January 1974	26.8 °C	1,631 mm	84
1973	33.6 °C4 February 1973	22.6 °C27 December 1973	27.2 °C	2,012 mm	134
1972	31.7 °C13 March 1972	21.8 °C4 January 1972	26.9 °C	2,041 mm	75
1971	31.8 °C8 February 1971	22.6 °C16 January 1971	26.6 °C	2,096 mm	87
1970	34.3 °C19 March 1970	22.7 °C21 January 1970	27.1 °C	2,179 mm	120
1969	33.3 °C7 February 1969	23.3 °C17 February 1969	27.0 °C	2,067 mm	114
1968	32.8 °C3 March 1968	22.4 °C24 February 1968	26.9 °C	1,684 mm	92
1967	32.8 °C7 March 1967	21.7 °C18 January 1967	26.8 °C	2,030 mm	92
1966	31.5 °C30 April 1966	23.0 °C6 January 1966	26.5 °C	2,376 mm	29
1965	32.5 °C16 March 1965	21.9 °C9 January 1965	26.7 °C	2,150 mm	81
1964	33.4 °C2 February 1964	22.8 °C30 January 1964	27.0 °C	2,346 mm	134
1963	33.9 °C9 April 1963	21.9 °C15 January 1963	27.0 °C	1,427 mm	136
1962	32.5 °C1 March 1962	22.7 °C25 January 1962	26.9 °C	1,699 mm	103
1961	32.9 °C8 February 1961	21.9 °C20 January 1961	26.9 °C	1,440 mm	115
1960	33.3 °C10 February 1960	22.9 °C4 January 1960	27.0 °C	1,801 mm	124
1959	32.9 °C16 March 1959	22.4 °C18 December 1959	26.9 °C	1,815 mm	97
1958	32.9 °C15 April 1958	22.2 °C30 November 1958	27.2 °C	1,793 mm	170
1957	32.4 °C8 March 1957	21.8 °C5 January 1957	26.8 °C	1,952 mm	94
1956	31.6 °C5 March 1956	21.8 °C22 January 1956	26.4 °C	2,261 mm	48
1955	33.9 °C14 March 1955	22.0 °C13 February 1955	26.7 °C	2,288 mm	85
1954	31.9 °C15 March 1954	22.4 °C23 November 1954	26.5 °C	2,718 mm	39
1953	31.5 °C23 March 1953	22.8 °C9 January 1953	26.7 °C	2,442 mm	41
1952	31.1 °C19 February 1952	22.5 °C14 December 1952	26.8 °C	1,970 mm	40
1951	31.6 °C4 March 1951	22.6 °C27 January 1951	26.9 °C	1,346 mm	39
1950	32.4 °C2 March 1950	23.1 °C24 December 1950	26.7 °C	2,109 mm	48
1949	31.8 °C9 March 1949	22.7 °C12 January 1949	27.3 °C	382 mm	148
1948	31.4 °C20 December 1948	22.6 °C18 January 1948	26.5 °C	1,624 mm	45
1947	30.2 °C10 June 1947	22.7 °C31 December 1947	26.2 °C	2,710 mm	3
1946	30.7 °C27 June 1946	22.6 °C29 January 1946	26.3 °C	2,063 mm	17
1945	30.1 °C26 June 1945	22.2 °C31 December 1945	26.1 °C	2,637 mm	2
1944	31.5 °C12 March 1944	21.8 °C6 December 1944	26.5 °C	2,347 mm	68
1943	31.9 °C23 February 1943	22.2 °C8 January 1943	26.3 °C	2,233 mm	57
1942	30.5 °C1 March 1942	22.4 °C30 December 1942	26.2 °C	2,230 mm	12
1941	30.7 °C16 March 1941	22.4 °C15 January 1941	26.3 °C	2,655 mm	9
1940	32.0 °C2 March 1940	21.6 °C24 January 1940	26.4 °C	1,915 mm	27

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

30.2 °C

+0.7 °C

Hot days (≥ 30 °C)

229 d/yr

+108

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2515 mm

+389 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.4 °C	+0.4 °C	77 mm	+28 mm
Feb	30.9 °C	+0.2 °C	57 mm	-1 mm
Mar	31.2 °C	+0.7 °C	90 mm	-30 mm
Apr	30.6 °C	+0.6 °C	323 mm	+129 mm
May	30.4 °C	+0.7 °C	297 mm	+67 mm
Jun	30.2 °C	+0.6 °C	155 mm	-13 mm
Jul	30.4 °C	+1.2 °C	76 mm	-106 mm
Aug	29.7 °C	+0.7 °C	182 mm	-33 mm
Sep	29.7 °C	+1.0 °C	257 mm	-14 mm
Oct	29.3 °C	+0.8 °C	309 mm	+1 mm
Nov	28.5 °C	-0.1 °C	672 mm	+449 mm
Dec	30.5 °C	+1.5 °C	21 mm	-87 mm

The year's extremes

Hottest day

32.9 °C

21 Mar 2025

Coldest day

23.2 °C

31 Jan 2025

Wettest day

119.5 mm

21 Nov 2025

Windiest day

32.9 km/h

24 Nov 2025

Strongest gust

61.9 km/h

25 Nov 2025

Hottest feels-like

40.4 °C

14 Apr 2025

Coldest feels-like

24.6 °C

31 Jan 2025

Sunniest day

12.3 h

5 Jul 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 Alor Star?

Alor Star has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 2,126 mm of precipitation per year.

What is the hottest day ever recorded in Alor Star?

The hottest day measured in Alor Star between 1940 and 2025 was 18 March 2010, reaching 34.9 °C.

What is the coldest day in Alor Star?

The coldest day measured in Alor Star between 1940 and 2025 was 20 January 1976, at 21.4 °C.

Does it snow in Alor Star?

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

Has the climate of Alor Star warmed?

Yes: Alor Star warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Alor Star?

The wettest day measured in Alor Star between 1940 and 2025 was 8 December 1996, with 167 mm of rain in 24 hours.

What was the windiest day in Alor Star?

The windiest day measured in Alor Star between 1940 and 2025 was 24 November 2025, with winds reaching 32.9 km/h.

What is the warmest month in Alor Star?

The warmest month in Alor Star is June (27.8 °C on average); the coldest is November (26.4 °C).

How much does it rain in Alor Star?

Alor Star receives on average 2,126 mm of precipitation per year, spread over about 258 rainy days.

Is it sunny in Alor Star?

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

Are there tropical nights in Alor Star?

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

What was the most extreme apparent temperature in Alor Star?

In Alor Star, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 29 April 2024, and the lowest was 21.5 °C on 6 December 1944.

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