Tongging climate — normals and trends

Q: What is the climate of Tongging?

Tongging has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 19.7 °C and it receives 2,444 mm of precipitation per year.

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

The hottest day measured in Tongging between 1940 and 2025 was 20 May 1998, reaching 30.1 °C.

Q: What is the coldest day in Tongging?

The coldest day measured in Tongging between 1940 and 2025 was 23 June 1940, at 10.7 °C.

Q: Does it snow in Tongging?

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

Q: Has the climate of Tongging warmed?

Yes: Tongging warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Tongging?

The wettest day measured in Tongging between 1940 and 2025 was 27 November 2025, with 156 mm of rain in 24 hours.

Q: What was the windiest day in Tongging?

The windiest day measured in Tongging between 1940 and 2025 was 20 July 2025, with winds reaching 23.5 km/h.

Q: What is the warmest month in Tongging?

The warmest month in Tongging is May (20.4 °C on average); the coldest is December (19.3 °C).

Q: How much does it rain in Tongging?

Tongging receives on average 2,444 mm of precipitation per year, spread over about 309 rainy days.

Q: Is it sunny in Tongging?

Tongging gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Tongging (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 19.7 °C and it receives 2,444 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 (20.4 °C on average) and the coldest is December (19.3 °C). Rainfall peaks in November.

Tongging averages 0 frost days, 0 hot days (≥ 30 °C) and 309 rainy days per year.

Tongging has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 30.1 °C (on 20 May 1998) and the coldest 10.7 °C (on 23 June 1940).

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

TonggingNorth Sumatra

coords: 2.90°, 98.52°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthMayColdest monthDecemberWettest monthNovemberDriest monthJune

Mean daily temperature

19.7°C

Average daily high

24.7°C

Average daily low

16.3°C

Annual rainfall

2,444mm

Sunshine / day

8.8h

Mean relative humidity

87%

Average peak wind

7.0km/h

Seasonal range

1.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

0 d/yr

Rainy days (≥ 1 mm)

309 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.0 °C

Average feels-like low

17.8 °C

Average peak gust

28.8 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

17.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.3 °C per decade · r² = 0.88 · 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

30.1 °C

20 May 1998

Coldest day

10.7 °C

23 June 1940

Wettest day

156 mm

27 November 2025

Windiest day

23.5 km/h

20 July 2025

Strongest gust

70.9 km/h

4 January 2017

Hottest feels-like

34.8 °C

11 April 2010

Coldest feels-like

8.5 °C

23 June 1940

Sunniest day

12.2 h

21 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	28.8 °C30 May 2025	14.4 °C23 August 2025	20.4 °C	3,061 mm	0
2024	29.1 °C7 April 2024	15.1 °C25 October 2024	21.2 °C	3,494 mm	0
2023	28.6 °C14 June 2023	14.2 °C18 January 2023	20.8 °C	2,893 mm	0
2022	28.8 °C28 March 2022	14.8 °C28 March 2022	20.3 °C	3,242 mm	0
2021	28.6 °C5 March 2021	14.5 °C23 September 2021	20.5 °C	2,773 mm	0
2020	28.5 °C13 May 2020	15.7 °C29 June 2020	20.7 °C	3,014 mm	0
2019	28.6 °C28 June 2019	15.2 °C15 March 2019	20.7 °C	2,550 mm	0
2018	28.6 °C12 June 2018	14.5 °C27 August 2018	20.4 °C	2,656 mm	0
2017	28.0 °C20 October 2017	13.9 °C11 January 2017	20.5 °C	3,312 mm	0
2016	29.4 °C20 April 2016	14.8 °C28 July 2016	20.8 °C	2,296 mm	0
2015	29.2 °C30 June 2015	14.1 °C11 February 2015	20.7 °C	2,728 mm	0
2014	29.0 °C11 February 2014	14.2 °C11 February 2014	20.4 °C	2,794 mm	0
2013	28.6 °C17 March 2013	13.7 °C20 July 2013	20.4 °C	2,925 mm	0
2012	28.0 °C18 May 2012	13.1 °C28 July 2012	20.4 °C	2,727 mm	0
2011	27.7 °C10 February 2011	14.9 °C10 July 2011	20.4 °C	2,886 mm	0
2010	29.2 °C14 April 2010	14.5 °C20 October 2010	20.8 °C	2,606 mm	0
2009	28.8 °C18 April 2009	13.8 °C11 January 2009	20.4 °C	2,768 mm	0
2008	28.5 °C4 May 2008	13.6 °C2 August 2008	20.2 °C	3,017 mm	0
2007	28.5 °C28 March 2007	14.0 °C30 December 2007	20.3 °C	2,794 mm	0
2006	28.0 °C5 April 2006	14.4 °C8 October 2006	20.4 °C	2,747 mm	0
2005	28.2 °C11 September 2005	13.6 °C11 September 2005	20.4 °C	2,196 mm	0
2004	28.4 °C10 May 2004	13.6 °C3 August 2004	20.2 °C	2,491 mm	0
2003	28.4 °C2 June 2003	14.4 °C25 May 2003	20.3 °C	2,508 mm	0
2002	28.7 °C18 May 2002	13.9 °C22 June 2002	20.3 °C	2,421 mm	0
2001	28.5 °C20 May 2001	14.4 °C7 July 2001	20.2 °C	2,624 mm	0
2000	28.6 °C3 March 2000	11.8 °C15 July 2000	20.0 °C	2,465 mm	0
1999	27.4 °C2 April 1999	13.1 °C31 January 1999	19.8 °C	2,814 mm	0
1998	30.1 °C20 May 1998	14.9 °C22 January 1998	20.6 °C	2,256 mm	1
1997	28.3 °C10 August 1997	13.9 °C30 May 1997	20.2 °C	2,344 mm	0
1996	28.5 °C14 March 1996	14.1 °C21 December 1996	19.9 °C	2,701 mm	0
1995	28.2 °C15 May 1995	14.1 °C15 December 1995	20.1 °C	3,017 mm	0
1994	27.7 °C5 June 1994	13.4 °C5 July 1994	19.9 °C	2,997 mm	0
1993	27.6 °C28 May 1993	13.5 °C24 January 1993	19.8 °C	2,825 mm	0
1992	28.3 °C16 March 1992	14.2 °C30 June 1992	19.8 °C	2,162 mm	0
1991	28.4 °C17 March 1991	13.5 °C17 February 1991	19.8 °C	2,543 mm	0
1990	28.3 °C29 June 1990	12.3 °C24 August 1990	19.7 °C	2,018 mm	0
1989	28.0 °C17 April 1989	13.4 °C17 June 1989	19.6 °C	2,330 mm	0
1988	28.3 °C19 April 1988	14.4 °C28 March 1988	20.0 °C	2,772 mm	0
1987	28.9 °C10 June 1987	14.4 °C15 February 1987	20.2 °C	2,592 mm	0
1986	28.0 °C8 June 1986	12.7 °C20 July 1986	19.8 °C	2,393 mm	0
1985	28.8 °C25 February 1985	11.8 °C28 June 1985	19.6 °C	2,365 mm	0
1984	27.6 °C12 April 1984	14.2 °C20 July 1984	19.5 °C	2,597 mm	0
1983	28.9 °C2 April 1983	14.5 °C1 April 1983	20.2 °C	1,909 mm	0
1982	27.9 °C5 May 1982	14.1 °C10 January 1982	19.8 °C	2,110 mm	0
1981	30.0 °C22 August 1981	13.2 °C16 February 1981	19.9 °C	1,963 mm	1
1980	27.6 °C29 May 1980	13.5 °C16 January 1980	19.8 °C	2,273 mm	0
1979	28.8 °C7 April 1979	12.2 °C16 May 1979	19.8 °C	2,184 mm	0
1978	27.9 °C26 May 1978	13.2 °C28 September 1978	19.7 °C	2,248 mm	0
1977	28.1 °C23 July 1977	13.6 °C9 January 1977	19.6 °C	2,199 mm	0
1976	27.8 °C7 April 1976	12.9 °C27 May 1976	19.3 °C	2,235 mm	0
1975	28.1 °C13 March 1975	13.2 °C13 January 1975	19.2 °C	2,055 mm	0
1974	28.6 °C30 April 1974	12.7 °C4 July 1974	19.3 °C	2,111 mm	0
1973	29.3 °C4 May 1973	12.8 °C29 September 1973	19.5 °C	2,089 mm	0
1972	28.4 °C14 August 1972	12.2 °C17 February 1972	19.4 °C	2,175 mm	0
1971	27.8 °C3 October 1971	11.9 °C1 October 1971	19.1 °C	2,236 mm	0
1970	28.9 °C21 April 1970	12.6 °C6 December 1970	19.6 °C	2,011 mm	0
1969	28.9 °C27 May 1969	11.1 °C27 July 1969	19.6 °C	2,198 mm	0
1968	27.5 °C19 September 1968	11.7 °C5 March 1968	19.1 °C	2,039 mm	0
1967	27.5 °C31 May 1967	12.2 °C20 March 1967	19.0 °C	2,261 mm	0
1966	27.1 °C1 May 1966	13.5 °C24 July 1966	18.9 °C	2,697 mm	0
1965	28.2 °C26 June 1965	12.7 °C10 January 1965	19.1 °C	2,439 mm	0
1964	28.2 °C16 April 1964	12.5 °C31 January 1964	19.3 °C	2,192 mm	0
1963	28.5 °C27 May 1963	12.4 °C2 March 1963	19.5 °C	1,833 mm	0
1962	28.4 °C21 May 1962	13.4 °C19 July 1962	19.3 °C	2,212 mm	0
1961	28.3 °C5 July 1961	13.1 °C30 June 1961	19.3 °C	1,899 mm	0
1960	28.3 °C2 July 1960	12.8 °C26 February 1960	19.4 °C	2,192 mm	0
1959	28.1 °C4 September 1959	13.1 °C12 July 1959	19.3 °C	2,146 mm	0
1958	28.2 °C8 June 1958	12.9 °C27 February 1958	19.5 °C	2,185 mm	0
1957	27.0 °C17 October 1957	12.8 °C29 January 1957	19.2 °C	2,303 mm	0
1956	26.9 °C13 March 1956	11.9 °C13 March 1956	18.7 °C	3,000 mm	0
1955	26.7 °C20 August 1955	12.5 °C17 February 1955	18.8 °C	2,609 mm	0
1954	27.1 °C10 June 1954	13.8 °C13 January 1954	18.9 °C	3,013 mm	0
1953	27.0 °C3 July 1953	13.6 °C10 February 1953	19.3 °C	2,636 mm	0
1952	27.1 °C1 March 1952	13.6 °C19 January 1952	19.4 °C	2,408 mm	0
1951	27.1 °C8 April 1951	12.7 °C5 January 1951	19.3 °C	1,624 mm	0
1950	27.7 °C30 September 1950	12.7 °C26 February 1950	19.2 °C	2,172 mm	0
1949	28.0 °C26 March 1949	11.7 °C3 February 1949	19.2 °C	888 mm	0
1948	25.9 °C20 April 1948	12.0 °C29 February 1948	18.8 °C	1,831 mm	0
1947	26.5 °C10 June 1947	14.2 °C8 February 1947	18.7 °C	2,963 mm	0
1946	26.8 °C8 July 1946	12.2 °C4 August 1946	18.6 °C	2,377 mm	0
1945	26.0 °C27 June 1945	13.1 °C23 January 1945	18.4 °C	2,756 mm	0
1944	26.3 °C28 May 1944	12.7 °C2 February 1944	18.6 °C	2,264 mm	0
1943	26.7 °C19 August 1943	12.4 °C9 June 1943	18.4 °C	1,993 mm	0
1942	26.6 °C16 May 1942	11.9 °C8 March 1942	18.5 °C	2,137 mm	0
1941	26.2 °C7 July 1941	12.8 °C28 June 1941	18.7 °C	2,490 mm	0
1940	26.2 °C3 August 1940	10.7 °C23 June 1940	18.7 °C	1,906 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

25.2 °C

+0.5 °C

Hot days (≥ 30 °C)

0 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

3061 mm

+617 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	24.6 °C	+0.4 °C	343 mm	+178 mm
Feb	25.3 °C	+0.5 °C	173 mm	+36 mm
Mar	25.5 °C	+0.3 °C	273 mm	+94 mm
Apr	25.5 °C	+0.1 °C	350 mm	+140 mm
May	26.3 °C	+0.8 °C	199 mm	+12 mm
Jun	26.3 °C	+0.9 °C	110 mm	-20 mm
Jul	25.9 °C	+0.9 °C	105 mm	-43 mm
Aug	25.6 °C	+0.8 °C	180 mm	-13 mm
Sep	25.3 °C	+0.8 °C	261 mm	+14 mm
Oct	25.1 °C	+0.9 °C	196 mm	-95 mm
Nov	23.5 °C	-0.5 °C	568 mm	+265 mm
Dec	23.9 °C	0.0 °C	303 mm	+50 mm

The year's extremes

Hottest day

28.8 °C

30 May 2025

Coldest day

14.4 °C

23 Aug 2025

Wettest day

156.4 mm

27 Nov 2025

Windiest day

23.5 km/h

20 Jul 2025

Strongest gust

66.2 km/h

20 Jul 2025

Hottest feels-like

33.5 °C

28 May 2025

Coldest feels-like

14.6 °C

23 Aug 2025

Sunniest day

12.1 h

10 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 Tongging?

Tongging has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 19.7 °C and it receives 2,444 mm of precipitation per year.

What is the hottest day ever recorded in Tongging?

The hottest day measured in Tongging between 1940 and 2025 was 20 May 1998, reaching 30.1 °C.

What is the coldest day in Tongging?

The coldest day measured in Tongging between 1940 and 2025 was 23 June 1940, at 10.7 °C.

Does it snow in Tongging?

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

Has the climate of Tongging warmed?

Yes: Tongging warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Tongging?

The wettest day measured in Tongging between 1940 and 2025 was 27 November 2025, with 156 mm of rain in 24 hours.

What was the windiest day in Tongging?

The windiest day measured in Tongging between 1940 and 2025 was 20 July 2025, with winds reaching 23.5 km/h.

What is the warmest month in Tongging?

The warmest month in Tongging is May (20.4 °C on average); the coldest is December (19.3 °C).

How much does it rain in Tongging?

Tongging receives on average 2,444 mm of precipitation per year, spread over about 309 rainy days.

Is it sunny in Tongging?

Tongging gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Are there tropical nights in Tongging?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tongging.

What was the most extreme apparent temperature in Tongging?

In Tongging, between 1940 and 2025, the highest apparent temperature reached 34.8 °C on 11 April 2010, and the lowest was 8.5 °C on 23 June 1940.

Compare Tongging with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Tongging

Other cities — Indonesia

All cities in Indonesia →