Demak climate — normals and trends

Q: What is the climate of Demak?

Demak has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,948 mm of precipitation per year.

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

The hottest day measured in Demak between 1940 and 2025 was 13 October 1961, reaching 38.9 °C.

Q: What is the coldest day in Demak?

The coldest day measured in Demak between 1940 and 2025 was 8 July 1942, at 17.5 °C.

Q: Does it snow in Demak?

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

Q: Has the climate of Demak warmed?

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

Q: What is the wettest day in Demak?

The wettest day measured in Demak between 1940 and 2025 was 6 December 2015, with 198 mm of rain in 24 hours.

Q: What was the windiest day in Demak?

The windiest day measured in Demak between 1940 and 2025 was 25 January 2012, with winds reaching 33.1 km/h.

Q: What is the warmest month in Demak?

The warmest month in Demak is October (28.4 °C on average); the coldest is January (26.0 °C).

Q: How much does it rain in Demak?

Demak receives on average 1,948 mm of precipitation per year, spread over about 216 rainy days.

Q: Is it sunny in Demak?

Demak gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Demak (Indonesia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,948 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 October (28.4 °C on average) and the coldest is January (26.0 °C). Rainfall peaks in January.

Demak averages 0 frost days, 320 hot days (≥ 30 °C) and 216 rainy days per year.

Demak has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.9 °C (on 13 October 1961) and the coldest 17.5 °C (on 8 July 1942).

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

DemakCentral Java

coords: -6.89°, 110.64°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthOctoberColdest monthJanuaryWettest monthJanuaryDriest monthAugust

Mean daily temperature

27.0°C

Average daily high

32.3°C

Average daily low

23.3°C

Annual rainfall

1,948mm

Sunshine / day

10.3h

Mean relative humidity

78%

Average peak wind

10.3km/h

Seasonal range

2.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

320 d/yr

Rainy days (≥ 1 mm)

216 d/yr

Annual snowfall

0.0 cm

Average feels-like high

37.7 °C

Average feels-like low

27.5 °C

Average peak gust

27.6 km/h

Tropical nights (≥ 20 °C)

362 d/yr

Solar radiation

19.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.57 · 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

38.9 °C

13 October 1961

Coldest day

17.5 °C

8 July 1942

Wettest day

198 mm

6 December 2015

Windiest day

33.1 km/h

25 January 2012

Strongest gust

72.0 km/h

15 March 2012

Hottest feels-like

44.6 °C

19 November 2018

Coldest feels-like

18.5 °C

2 July 1986

Sunniest day

12.4 h

22 December 2023

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.1 °C13 October 2025	20.7 °C11 July 2025	27.6 °C	2,664 mm	338
2024	37.4 °C12 October 2024	21.1 °C14 July 2024	28.6 °C	2,090 mm	357
2023	38.6 °C18 November 2023	20.9 °C12 August 2023	28.3 °C	1,639 mm	348
2022	36.0 °C17 September 2022	20.3 °C26 July 2022	27.4 °C	2,477 mm	338
2021	36.8 °C17 October 2021	20.5 °C26 July 2021	27.8 °C	2,239 mm	332
2020	37.1 °C2 October 2020	21.1 °C30 July 2020	28.2 °C	2,399 mm	353
2019	38.9 °C22 October 2019	20.6 °C7 August 2019	28.3 °C	1,760 mm	352
2018	37.4 °C7 October 2018	19.9 °C27 July 2018	28.1 °C	1,477 mm	349
2017	36.6 °C23 September 2017	21.2 °C25 July 2017	27.8 °C	2,257 mm	342
2016	35.7 °C1 September 2016	22.7 °C3 August 2016	27.9 °C	2,625 mm	350
2015	38.1 °C27 October 2015	20.7 °C3 August 2015	28.1 °C	1,880 mm	343
2014	37.3 °C31 October 2014	22.0 °C17 July 2014	27.9 °C	1,914 mm	330
2013	36.3 °C9 November 2013	19.5 °C13 August 2013	27.5 °C	2,404 mm	328
2012	36.1 °C11 November 2012	21.0 °C16 August 2012	27.6 °C	1,866 mm	343
2011	36.1 °C17 October 2011	20.4 °C17 June 2011	27.3 °C	2,077 mm	326
2010	35.0 °C1 March 2010	21.6 °C24 July 2010	27.4 °C	3,192 mm	338
2009	37.4 °C5 November 2009	20.2 °C12 July 2009	27.6 °C	1,797 mm	338
2008	35.8 °C4 October 2008	19.6 °C12 May 2008	27.2 °C	1,963 mm	325
2007	35.8 °C25 September 2007	20.5 °C12 June 2007	27.5 °C	1,829 mm	339
2006	36.8 °C19 November 2006	20.0 °C4 September 2006	27.4 °C	1,685 mm	337
2005	36.3 °C15 November 2005	19.6 °C7 August 2005	27.4 °C	1,712 mm	341
2004	36.7 °C26 October 2004	20.0 °C18 August 2004	27.4 °C	1,820 mm	337
2003	36.2 °C12 November 2003	18.9 °C5 August 2003	27.4 °C	1,777 mm	342
2002	37.7 °C17 October 2002	20.1 °C13 August 2002	27.4 °C	1,407 mm	322
2001	35.8 °C16 September 2001	18.8 °C4 July 2001	26.8 °C	2,182 mm	327
2000	35.7 °C8 September 2000	20.5 °C23 August 2000	26.9 °C	2,295 mm	317
1999	36.7 °C24 September 1999	19.8 °C19 August 1999	27.0 °C	2,710 mm	328
1998	36.6 °C16 September 1998	21.3 °C8 August 1998	27.5 °C	3,043 mm	340
1997	37.5 °C17 October 1997	19.2 °C9 October 1997	27.3 °C	1,580 mm	330
1996	37.3 °C21 September 1996	21.7 °C4 August 1996	27.2 °C	2,476 mm	326
1995	36.3 °C14 September 1995	21.0 °C30 July 1995	27.2 °C	2,629 mm	330
1994	37.3 °C26 October 1994	19.0 °C21 June 1994	27.0 °C	2,106 mm	329
1993	37.8 °C4 November 1993	20.7 °C19 July 1993	27.3 °C	1,879 mm	336
1992	35.0 °C4 August 1992	20.1 °C17 May 1992	26.6 °C	2,313 mm	332
1991	37.7 °C5 October 1991	19.7 °C5 July 1991	26.8 °C	2,025 mm	318
1990	38.0 °C1 November 1990	19.9 °C29 July 1990	27.2 °C	1,932 mm	311
1989	35.7 °C26 September 1989	18.6 °C14 August 1989	26.5 °C	2,461 mm	315
1988	36.7 °C14 September 1988	20.2 °C29 June 1988	27.0 °C	2,323 mm	322
1987	37.8 °C30 October 1987	19.9 °C14 August 1987	27.3 °C	1,838 mm	316
1986	36.7 °C1 October 1986	18.7 °C2 July 1986	26.8 °C	2,439 mm	321
1985	37.2 °C12 October 1985	19.4 °C15 June 1985	26.9 °C	1,987 mm	339
1984	35.9 °C3 November 1984	19.1 °C28 June 1984	26.5 °C	2,594 mm	305
1983	37.3 °C19 September 1983	20.0 °C6 July 1983	27.2 °C	2,480 mm	340
1982	38.2 °C3 November 1982	19.6 °C10 July 1982	27.2 °C	1,627 mm	317
1981	38.1 °C23 October 1981	20.4 °C3 June 1981	26.8 °C	2,276 mm	298
1980	38.4 °C22 September 1980	18.8 °C9 June 1980	27.3 °C	2,021 mm	320
1979	38.5 °C14 October 1979	18.4 °C15 June 1979	27.1 °C	2,089 mm	329
1978	36.5 °C19 October 1978	19.4 °C20 July 1978	26.7 °C	2,499 mm	319
1977	38.7 °C25 October 1977	18.3 °C4 July 1977	27.1 °C	1,699 mm	317
1976	36.2 °C27 September 1976	18.6 °C18 July 1976	26.8 °C	1,505 mm	316
1975	35.9 °C14 August 1975	18.7 °C31 May 1975	26.4 °C	2,465 mm	299
1974	35.8 °C27 September 1974	19.7 °C19 July 1974	26.3 °C	1,976 mm	296
1973	36.7 °C5 September 1973	19.9 °C5 July 1973	26.7 °C	2,511 mm	310
1972	38.1 °C28 October 1972	18.9 °C5 June 1972	26.8 °C	1,282 mm	311
1971	36.9 °C4 September 1971	18.3 °C16 June 1971	26.2 °C	2,045 mm	284
1970	36.6 °C3 October 1970	18.3 °C1 July 1970	26.5 °C	2,053 mm	318
1969	38.2 °C14 October 1969	18.9 °C3 August 1969	27.2 °C	1,259 mm	339
1968	37.8 °C21 October 1968	19.9 °C2 August 1968	26.2 °C	2,351 mm	279
1967	38.0 °C29 September 1967	18.3 °C1 August 1967	26.9 °C	1,810 mm	289
1966	38.3 °C27 September 1966	18.5 °C26 June 1966	26.6 °C	1,955 mm	303
1965	38.7 °C27 October 1965	20.2 °C2 September 1965	27.4 °C	1,443 mm	315
1964	37.3 °C29 August 1964	19.4 °C30 June 1964	27.1 °C	1,582 mm	346
1963	38.7 °C10 November 1963	18.6 °C14 August 1963	27.5 °C	1,383 mm	314
1962	38.8 °C30 September 1962	20.1 °C16 May 1962	27.1 °C	1,880 mm	322
1961	38.9 °C13 October 1961	18.6 °C20 July 1961	27.4 °C	1,495 mm	338
1960	38.3 °C27 October 1960	19.4 °C22 June 1960	27.1 °C	1,696 mm	318
1959	38.5 °C2 October 1959	19.2 °C13 July 1959	27.1 °C	1,916 mm	322
1958	37.7 °C23 September 1958	19.9 °C12 June 1958	27.1 °C	2,081 mm	350
1957	38.1 °C8 October 1957	18.0 °C14 August 1957	27.0 °C	1,694 mm	319
1956	37.2 °C22 October 1956	18.0 °C11 August 1956	26.1 °C	1,828 mm	303
1955	36.8 °C16 October 1955	19.0 °C22 August 1955	25.8 °C	2,468 mm	245
1954	35.6 °C7 October 1954	18.7 °C2 August 1954	25.9 °C	2,328 mm	274
1953	38.7 °C21 October 1953	18.6 °C12 August 1953	27.2 °C	1,234 mm	340
1952	36.8 °C11 September 1952	18.0 °C20 June 1952	26.5 °C	1,939 mm	317
1951	38.3 °C19 November 1951	19.6 °C30 June 1951	26.8 °C	1,568 mm	306
1950	37.1 °C10 September 1950	19.8 °C5 July 1950	26.3 °C	1,653 mm	290
1949	37.1 °C15 September 1949	18.2 °C21 July 1949	26.2 °C	1,134 mm	295
1948	38.2 °C12 October 1948	20.1 °C6 January 1948	27.4 °C	913 mm	351
1947	37.3 °C9 October 1947	20.0 °C16 June 1947	26.8 °C	1,328 mm	318
1946	38.1 °C26 October 1946	18.0 °C27 May 1946	26.8 °C	1,395 mm	302
1945	36.1 °C4 October 1945	18.5 °C7 June 1945	26.0 °C	1,588 mm	260
1944	38.1 °C20 October 1944	17.5 °C9 June 1944	26.1 °C	1,719 mm	262
1943	35.0 °C26 November 1943	19.3 °C31 March 1943	26.1 °C	1,249 mm	280
1942	35.5 °C27 August 1942	17.5 °C8 July 1942	25.8 °C	1,637 mm	254
1941	37.2 °C16 October 1941	18.2 °C20 June 1941	26.3 °C	1,477 mm	304
1940	38.7 °C4 November 1940	17.8 °C12 July 1940	26.3 °C	1,274 mm	278

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

32.2 °C

-0.1 °C

Hot days (≥ 30 °C)

338 d/yr

+18

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2664 mm

+716 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.1 °C	+0.9 °C	396 mm	+91 mm
Feb	31.5 °C	+1.2 °C	241 mm	-50 mm
Mar	31.6 °C	+0.4 °C	373 mm	+95 mm
Apr	31.9 °C	0.0 °C	193 mm	+15 mm
May	31.8 °C	-0.2 °C	277 mm	+170 mm
Jun	31.9 °C	-0.4 °C	51 mm	-7 mm
Jul	32.8 °C	0.0 °C	15 mm	-18 mm
Aug	32.3 °C	-1.3 °C	178 mm	+154 mm
Sep	33.2 °C	-1.3 °C	87 mm	+42 mm
Oct	34.2 °C	-0.4 °C	188 mm	+78 mm
Nov	31.8 °C	-1.5 °C	314 mm	+100 mm
Dec	31.7 °C	+0.3 °C	351 mm	+46 mm

The year's extremes

Hottest day

37.1 °C

13 Oct 2025

Coldest day

20.7 °C

11 Jul 2025

Wettest day

75.0 mm

12 Aug 2025

Windiest day

27.6 km/h

5 Feb 2025

Strongest gust

59.4 km/h

5 Feb 2025

Hottest feels-like

42.7 °C

15 Oct 2025

Coldest feels-like

22.8 °C

10 Jul 2025

Sunniest day

12.1 h

25 Nov 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 Demak?

Demak has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,948 mm of precipitation per year.

What is the hottest day ever recorded in Demak?

The hottest day measured in Demak between 1940 and 2025 was 13 October 1961, reaching 38.9 °C.

What is the coldest day in Demak?

The coldest day measured in Demak between 1940 and 2025 was 8 July 1942, at 17.5 °C.

Does it snow in Demak?

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

Has the climate of Demak warmed?

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

What is the wettest day in Demak?

The wettest day measured in Demak between 1940 and 2025 was 6 December 2015, with 198 mm of rain in 24 hours.

What was the windiest day in Demak?

The windiest day measured in Demak between 1940 and 2025 was 25 January 2012, with winds reaching 33.1 km/h.

What is the warmest month in Demak?

The warmest month in Demak is October (28.4 °C on average); the coldest is January (26.0 °C).

How much does it rain in Demak?

Demak receives on average 1,948 mm of precipitation per year, spread over about 216 rainy days.

Is it sunny in Demak?

Demak gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Are there tropical nights in Demak?

Yes: Demak has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Demak?

In Demak, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 19 November 2018, and the lowest was 18.5 °C on 2 July 1986.

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