Sidikalang climate — normals and trends

Q: What is the climate of Sidikalang?

Sidikalang has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 3,797 mm of precipitation per year.

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

The hottest day measured in Sidikalang between 1940 and 2025 was 22 August 1981, reaching 31.6 °C.

Q: What is the coldest day in Sidikalang?

The coldest day measured in Sidikalang between 1940 and 2025 was 21 February 1968, at 11.7 °C.

Q: Does it snow in Sidikalang?

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

Q: Has the climate of Sidikalang warmed?

Yes: Sidikalang warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Sidikalang?

The wettest day measured in Sidikalang between 1940 and 2025 was 22 March 2016, with 197 mm of rain in 24 hours.

Q: What was the windiest day in Sidikalang?

The windiest day measured in Sidikalang between 1940 and 2025 was 30 July 1978, with winds reaching 18.1 km/h.

Q: What is the warmest month in Sidikalang?

The warmest month in Sidikalang is May (21.9 °C on average); the coldest is October (20.8 °C).

Q: How much does it rain in Sidikalang?

Sidikalang receives on average 3,797 mm of precipitation per year, spread over about 298 rainy days.

Q: Is it sunny in Sidikalang?

Sidikalang gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Sidikalang (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 21.2 °C and it receives 3,797 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 (21.9 °C on average) and the coldest is October (20.8 °C). Rainfall peaks in November.

Sidikalang averages 0 frost days, 2 hot days (≥ 30 °C) and 298 rainy days per year.

Sidikalang has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.

The hottest day of the period reached 31.6 °C (on 22 August 1981) and the coldest 11.7 °C (on 21 February 1968).

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

SidikalangNorth Sumatra

coords: 2.75°, 98.31°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthMayColdest monthOctoberWettest monthNovemberDriest monthJune

Mean daily temperature

21.2°C

Average daily high

26.4°C

Average daily low

17.4°C

Annual rainfall

3,797mm

Sunshine / day

8.9h

Mean relative humidity

88%

Average peak wind

7.2km/h

Seasonal range

1.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

2 d/yr

Rainy days (≥ 1 mm)

298 d/yr

Annual snowfall

0.0 cm

Average feels-like high

30.7 °C

Average feels-like low

19.2 °C

Average peak gust

27.2 km/h

Tropical nights (≥ 20 °C)

4 d/yr

Solar radiation

17.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.91 · 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

31.6 °C

22 August 1981

Coldest day

11.7 °C

21 February 1968

Wettest day

197 mm

22 March 2016

Windiest day

18.1 km/h

30 July 1978

Strongest gust

61.9 km/h

31 July 1978

Hottest feels-like

38.6 °C

2 May 1998

Coldest feels-like

10.8 °C

23 June 1940

Sunniest day

12.2 h

21 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	30.4 °C30 May 2025	15.7 °C18 July 2025	22.1 °C	3,760 mm	4
2024	31.6 °C29 February 2024	16.0 °C14 March 2024	22.8 °C	5,270 mm	16
2023	31.0 °C12 May 2023	15.1 °C18 January 2023	22.3 °C	4,508 mm	8
2022	30.3 °C28 March 2022	15.9 °C7 September 2022	21.9 °C	3,516 mm	3
2021	30.6 °C25 March 2021	15.5 °C17 January 2021	22.1 °C	3,750 mm	5
2020	30.6 °C23 February 2020	16.3 °C30 January 2020	22.2 °C	4,302 mm	12
2019	31.3 °C26 February 2019	15.7 °C15 March 2019	22.2 °C	4,780 mm	4
2018	30.5 °C12 June 2018	15.5 °C13 August 2018	21.9 °C	4,290 mm	4
2017	30.4 °C20 October 2017	15.2 °C19 October 2017	22.1 °C	4,145 mm	1
2016	30.9 °C24 January 2016	15.8 °C28 July 2016	22.3 °C	4,004 mm	10
2015	31.5 °C18 September 2015	15.1 °C2 February 2015	22.2 °C	5,074 mm	11
2014	30.8 °C11 March 2014	14.2 °C10 February 2014	22.0 °C	4,542 mm	10
2013	30.4 °C5 March 2013	15.1 °C20 July 2013	22.0 °C	3,760 mm	2
2012	30.7 °C15 July 2012	14.2 °C28 July 2012	22.0 °C	4,094 mm	3
2011	29.8 °C25 November 2011	15.9 °C13 October 2011	22.0 °C	3,719 mm	0
2010	31.1 °C14 April 2010	15.7 °C19 October 2010	22.3 °C	4,114 mm	13
2009	30.2 °C18 April 2009	15.5 °C1 July 2009	22.0 °C	3,512 mm	7
2008	30.8 °C6 February 2008	14.4 °C1 August 2008	21.8 °C	4,212 mm	2
2007	30.4 °C10 February 2007	15.1 °C5 January 2007	21.9 °C	3,746 mm	5
2006	30.0 °C5 April 2006	14.4 °C30 January 2006	21.9 °C	4,425 mm	1
2005	30.4 °C6 April 2005	15.0 °C11 September 2005	22.0 °C	2,576 mm	1
2004	30.0 °C12 April 2004	14.4 °C17 May 2004	21.8 °C	4,388 mm	1
2003	30.6 °C9 March 2003	15.7 °C19 May 2003	21.9 °C	3,595 mm	2
2002	30.3 °C18 May 2002	15.4 °C2 November 2002	21.8 °C	4,473 mm	3
2001	30.2 °C20 May 2001	14.1 °C7 July 2001	21.8 °C	2,917 mm	1
2000	30.5 °C7 March 2000	12.7 °C15 July 2000	21.6 °C	3,268 mm	3
1999	29.1 °C21 June 1999	14.9 °C2 August 1999	21.4 °C	3,119 mm	0
1998	31.6 °C20 May 1998	15.9 °C11 February 1998	22.1 °C	4,098 mm	20
1997	29.8 °C27 March 1997	15.6 °C31 July 1997	21.7 °C	4,806 mm	0
1996	30.0 °C20 June 1996	14.8 °C24 September 1996	21.4 °C	4,034 mm	1
1995	29.9 °C15 May 1995	15.2 °C1 March 1995	21.6 °C	4,180 mm	0
1994	29.2 °C27 February 1994	15.1 °C5 July 1994	21.4 °C	4,915 mm	0
1993	29.8 °C23 February 1993	14.1 °C5 March 1993	21.3 °C	4,636 mm	0
1992	30.5 °C22 March 1992	14.5 °C23 February 1992	21.3 °C	3,368 mm	2
1991	30.4 °C27 April 1991	14.4 °C22 February 1991	21.2 °C	4,648 mm	2
1990	30.7 °C4 March 1990	13.6 °C26 August 1990	21.2 °C	4,028 mm	3
1989	29.7 °C17 December 1989	14.4 °C21 February 1989	21.1 °C	3,412 mm	0
1988	29.9 °C21 July 1988	15.4 °C18 February 1988	21.6 °C	4,197 mm	0
1987	30.5 °C10 June 1987	14.7 °C3 February 1987	21.7 °C	4,340 mm	5
1986	29.8 °C12 February 1986	14.5 °C11 February 1986	21.4 °C	3,449 mm	0
1985	30.4 °C25 February 1985	12.8 °C28 June 1985	21.1 °C	3,319 mm	4
1984	29.9 °C12 February 1984	15.3 °C20 July 1984	21.1 °C	3,592 mm	0
1983	30.6 °C1 April 1983	15.1 °C1 April 1983	21.7 °C	3,167 mm	3
1982	29.9 °C9 June 1982	14.8 °C20 January 1982	21.2 °C	4,221 mm	0
1981	31.6 °C22 August 1981	14.0 °C13 August 1981	21.3 °C	2,928 mm	9
1980	29.7 °C18 April 1980	13.5 °C6 February 1980	21.2 °C	3,282 mm	0
1979	30.3 °C9 April 1979	12.7 °C17 May 1979	21.2 °C	3,759 mm	2
1978	30.5 °C20 March 1978	14.3 °C3 January 1978	21.2 °C	3,428 mm	3
1977	29.9 °C2 April 1977	14.6 °C4 April 1977	21.1 °C	3,865 mm	0
1976	29.1 °C30 January 1976	14.2 °C26 February 1976	20.8 °C	3,353 mm	0
1975	29.8 °C28 April 1975	13.7 °C21 January 1975	20.8 °C	2,638 mm	0
1974	30.4 °C1 May 1974	13.9 °C1 March 1974	20.8 °C	2,907 mm	2
1973	31.0 °C4 May 1973	13.8 °C29 September 1973	21.0 °C	3,311 mm	2
1972	29.6 °C11 August 1972	12.4 °C17 February 1972	20.9 °C	3,872 mm	0
1971	30.1 °C15 July 1971	13.4 °C1 October 1971	20.7 °C	2,671 mm	1
1970	30.6 °C23 August 1970	14.1 °C18 February 1970	21.1 °C	3,031 mm	3
1969	30.1 °C8 April 1969	11.8 °C27 July 1969	21.0 °C	4,072 mm	1
1968	29.1 °C19 September 1968	11.7 °C21 February 1968	20.5 °C	3,785 mm	0
1967	29.2 °C16 July 1967	13.6 °C27 December 1967	20.5 °C	3,668 mm	0
1966	28.6 °C1 May 1966	13.3 °C26 February 1966	20.4 °C	3,453 mm	0
1965	30.0 °C1 March 1965	13.7 °C9 January 1965	20.6 °C	4,787 mm	1
1964	30.5 °C5 July 1964	13.9 °C31 January 1964	20.7 °C	3,997 mm	1
1963	29.9 °C27 May 1963	12.9 °C24 February 1963	20.8 °C	4,729 mm	0
1962	30.3 °C26 July 1962	14.2 °C13 February 1962	20.8 °C	3,841 mm	2
1961	30.3 °C30 May 1961	13.2 °C30 June 1961	20.7 °C	3,521 mm	3
1960	31.0 °C3 July 1960	13.9 °C26 February 1960	20.9 °C	3,454 mm	3
1959	30.0 °C4 September 1959	14.0 °C27 January 1959	20.7 °C	4,116 mm	1
1958	30.0 °C11 July 1958	12.7 °C27 February 1958	21.0 °C	4,183 mm	1
1957	29.4 °C28 December 1957	13.5 °C29 January 1957	20.7 °C	4,194 mm	0
1956	28.9 °C25 February 1956	13.3 °C13 March 1956	20.3 °C	4,039 mm	0
1955	29.2 °C13 February 1955	14.0 °C25 June 1955	20.4 °C	4,132 mm	0
1954	29.1 °C10 June 1954	14.8 °C23 February 1954	20.3 °C	4,221 mm	0
1953	28.6 °C20 June 1953	14.1 °C8 January 1953	20.7 °C	5,367 mm	0
1952	29.2 °C19 January 1952	14.8 °C29 January 1952	20.8 °C	3,628 mm	0
1951	28.9 °C31 March 1951	13.1 °C2 March 1951	20.6 °C	3,697 mm	0
1950	29.7 °C20 February 1950	14.1 °C26 February 1950	20.6 °C	3,033 mm	0
1949	29.5 °C23 March 1949	12.6 °C16 February 1949	20.7 °C	1,276 mm	0
1948	28.0 °C18 December 1948	12.5 °C29 February 1948	20.2 °C	4,041 mm	0
1947	28.1 °C10 June 1947	14.3 °C8 February 1947	20.2 °C	4,690 mm	0
1946	28.7 °C8 July 1946	13.3 °C4 August 1946	20.1 °C	3,628 mm	0
1945	27.1 °C25 May 1945	14.2 °C25 December 1945	19.9 °C	3,219 mm	0
1944	27.7 °C28 May 1944	13.0 °C2 February 1944	20.1 °C	2,983 mm	0
1943	29.0 °C26 July 1943	13.6 °C19 March 1943	20.0 °C	2,733 mm	0
1942	28.7 °C15 May 1942	13.3 °C5 February 1942	20.0 °C	3,042 mm	0
1941	28.1 °C8 July 1941	14.0 °C28 June 1941	20.2 °C	3,151 mm	0
1940	29.1 °C3 August 1940	11.8 °C23 June 1940	20.2 °C	2,596 mm	0

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

27.0 °C

+0.6 °C

Hot days (≥ 30 °C)

4 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

3760 mm

-37 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.7 °C	+0.3 °C	510 mm	+153 mm
Feb	27.6 °C	+0.7 °C	250 mm	-85 mm
Mar	27.2 °C	+0.3 °C	527 mm	+127 mm
Apr	27.1 °C	+0.2 °C	413 mm	+31 mm
May	27.9 °C	+0.8 °C	147 mm	-96 mm
Jun	28.0 °C	+0.9 °C	158 mm	+23 mm
Jul	27.5 °C	+0.8 °C	115 mm	-38 mm
Aug	27.2 °C	+0.8 °C	214 mm	+4 mm
Sep	26.8 °C	+0.9 °C	170 mm	-119 mm
Oct	26.9 °C	+1.3 °C	213 mm	-205 mm
Nov	25.0 °C	-0.5 °C	571 mm	+113 mm
Dec	25.9 °C	+0.1 °C	472 mm	+54 mm

The year's extremes

Hottest day

30.4 °C

30 May 2025

Coldest day

15.7 °C

18 Jul 2025

Wettest day

98.1 mm

27 Nov 2025

Windiest day

15.4 km/h

20 Jul 2025

Strongest gust

52.2 km/h

20 Jul 2025

Hottest feels-like

37.4 °C

10 Mar 2025

Coldest feels-like

15.5 °C

18 Aug 2025

Sunniest day

12.1 h

22 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 Sidikalang?

Sidikalang has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 3,797 mm of precipitation per year.

What is the hottest day ever recorded in Sidikalang?

The hottest day measured in Sidikalang between 1940 and 2025 was 22 August 1981, reaching 31.6 °C.

What is the coldest day in Sidikalang?

The coldest day measured in Sidikalang between 1940 and 2025 was 21 February 1968, at 11.7 °C.

Does it snow in Sidikalang?

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

Has the climate of Sidikalang warmed?

Yes: Sidikalang warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Sidikalang?

The wettest day measured in Sidikalang between 1940 and 2025 was 22 March 2016, with 197 mm of rain in 24 hours.

What was the windiest day in Sidikalang?

The windiest day measured in Sidikalang between 1940 and 2025 was 30 July 1978, with winds reaching 18.1 km/h.

What is the warmest month in Sidikalang?

The warmest month in Sidikalang is May (21.9 °C on average); the coldest is October (20.8 °C).

How much does it rain in Sidikalang?

Sidikalang receives on average 3,797 mm of precipitation per year, spread over about 298 rainy days.

Is it sunny in Sidikalang?

Sidikalang gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Are there tropical nights in Sidikalang?

Yes: Sidikalang has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Sidikalang?

In Sidikalang, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 2 May 1998, and the lowest was 10.8 °C on 23 June 1940.

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