Helwan climate — normals and trends

Q: What is the climate of Helwan?

Helwan has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 17 mm of precipitation per year.

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

The hottest day measured in Helwan between 1940 and 2025 was 21 May 1970, reaching 46.8 °C.

Q: What is the coldest day in Helwan?

The coldest day measured in Helwan between 1940 and 2025 was 6 February 1950, at -1.9 °C.

Q: Does it snow in Helwan?

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

Q: Has the climate of Helwan warmed?

Yes: Helwan warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Helwan?

The wettest day measured in Helwan between 1940 and 2025 was 20 February 1975, with 39 mm of rain in 24 hours.

Q: What was the windiest day in Helwan?

The windiest day measured in Helwan between 1940 and 2025 was 1 February 1988, with winds reaching 45.3 km/h.

Q: What is the warmest month in Helwan?

The warmest month in Helwan is July (29.2 °C on average); the coldest is January (13.0 °C).

Q: How much does it rain in Helwan?

Helwan receives on average 17 mm of precipitation per year, spread over about 4 rainy days.

Q: Is it sunny in Helwan?

Helwan gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.

Helwan (Egypt) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 22.0 °C and it receives 17 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 July (29.2 °C on average) and the coldest is January (13.0 °C). Rainfall peaks in December.

Helwan averages 0 frost days, 176 hot days (≥ 30 °C) and 4 rainy days per year.

Helwan has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.

The hottest day of the period reached 46.8 °C (on 21 May 1970) and the coldest -1.9 °C (on 6 February 1950).

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

HelwanCairo Governorate

coords: 29.84°, 31.30°
period: 1940–2025 · 86 yrs

BWhHot desertWarmest monthJulyColdest monthJanuaryWettest monthDecemberDriest monthJune

Mean daily temperature

22.0°C

Average daily high

28.5°C

Average daily low

15.9°C

Annual rainfall

17mm

Sunshine / day

11.4h

Mean relative humidity

51%

Average peak wind

17.8km/h

Seasonal range

16.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

176 d/yr

Rainy days (≥ 1 mm)

4 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.4 °C

Average feels-like low

15.3 °C

Average peak gust

35.3 km/h

Tropical nights (≥ 20 °C)

118 d/yr

Solar radiation

21.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.54 · 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

46.8 °C

21 May 1970

Coldest day

-1.9 °C

6 February 1950

Wettest day

39 mm

20 February 1975

Windiest day

45.3 km/h

1 February 1988

Strongest gust

90.0 km/h

1 February 1988

Hottest feels-like

46.9 °C

7 June 1961

Coldest feels-like

-5.4 °C

6 February 1950

Sunniest day

13.9 h

28 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	42.1 °C26 May 2025	5.9 °C24 February 2025	23.3 °C	6 mm	182	0
2024	42.7 °C15 June 2024	5.8 °C1 February 2024	23.8 °C	5 mm	178	0
2023	42.0 °C6 August 2023	6.1 °C9 February 2023	23.7 °C	8 mm	193	0
2022	42.7 °C11 June 2022	3.3 °C22 January 2022	22.8 °C	19 mm	171	0
2021	42.4 °C7 August 2021	6.7 °C21 January 2021	23.6 °C	15 mm	196	0
2020	43.7 °C20 May 2020	4.9 °C25 January 2020	23.1 °C	82 mm	178	0
2019	44.7 °C23 May 2019	3.7 °C11 January 2019	23.2 °C	26 mm	185	0
2018	44.9 °C22 May 2018	7.1 °C21 January 2018	24.0 °C	14 mm	200	0
2017	41.6 °C8 June 2017	4.1 °C6 January 2017	23.1 °C	7 mm	172	0
2016	45.0 °C15 May 2016	4.5 °C28 January 2016	23.6 °C	11 mm	201	0
2015	46.3 °C27 May 2015	5.2 °C10 January 2015	23.1 °C	27 mm	176	0
2014	44.2 °C4 June 2014	6.9 °C15 March 2014	23.2 °C	6 mm	182	0
2013	45.1 °C2 June 2013	5.1 °C17 December 2013	22.8 °C	9 mm	185	0
2012	40.0 °C19 July 2012	4.0 °C17 January 2012	22.8 °C	10 mm	202	0
2011	40.4 °C10 June 2011	6.9 °C10 March 2011	22.2 °C	15 mm	162	0
2010	44.8 °C20 June 2010	4.5 °C7 February 2010	24.1 °C	8 mm	204	0
2009	40.5 °C30 June 2009	6.3 °C5 January 2009	23.0 °C	5 mm	180	0
2008	42.0 °C23 April 2008	4.7 °C19 February 2008	23.0 °C	5 mm	177	0
2007	42.6 °C27 July 2007	4.6 °C3 January 2007	22.6 °C	12 mm	193	0
2006	40.7 °C29 September 2006	5.4 °C14 January 2006	22.3 °C	8 mm	176	0
2005	40.6 °C20 June 2005	3.8 °C9 February 2005	22.2 °C	15 mm	172	0
2004	42.7 °C14 July 2004	6.0 °C15 February 2004	22.4 °C	14 mm	192	0
2003	41.2 °C29 May 2003	5.3 °C26 February 2003	22.4 °C	4 mm	186	0
2002	44.5 °C29 July 2002	5.2 °C4 January 2002	22.7 °C	12 mm	173	0
2001	42.5 °C27 May 2001	3.8 °C30 January 2001	22.5 °C	4 mm	171	0
2000	42.8 °C30 July 2000	3.7 °C29 January 2000	21.9 °C	9 mm	171	0
1999	40.6 °C19 August 1999	5.3 °C21 February 1999	22.6 °C	7 mm	183	0
1998	43.2 °C13 June 1998	5.8 °C13 January 1998	22.8 °C	10 mm	178	0
1997	42.2 °C8 June 1997	3.4 °C6 February 1997	21.9 °C	5 mm	168	0
1996	42.3 °C6 September 1996	3.9 °C13 January 1996	22.1 °C	21 mm	174	0
1995	43.9 °C1 July 1995	4.6 °C16 January 1995	21.9 °C	6 mm	160	0
1994	42.3 °C21 April 1994	4.7 °C22 December 1994	22.2 °C	34 mm	179	0
1993	41.7 °C4 June 1993	2.8 °C15 February 1993	21.8 °C	10 mm	178	0
1992	44.6 °C20 June 1992	2.8 °C10 February 1992	21.0 °C	11 mm	165	0
1991	42.4 °C12 May 1991	4.6 °C27 January 1991	21.5 °C	29 mm	178	0
1990	39.4 °C31 May 1990	5.5 °C23 February 1990	21.8 °C	15 mm	174	0
1989	41.1 °C28 May 1989	3.6 °C7 January 1989	21.7 °C	9 mm	180	0
1988	44.3 °C15 May 1988	4.5 °C20 January 1988	21.8 °C	30 mm	164	0
1987	41.7 °C31 May 1987	2.9 °C12 January 1987	21.3 °C	20 mm	154	0
1986	43.1 °C7 June 1986	6.0 °C24 January 1986	21.7 °C	18 mm	151	0
1985	41.2 °C2 June 1985	4.6 °C5 January 1985	21.9 °C	53 mm	156	0
1984	43.7 °C25 May 1984	6.4 °C25 January 1984	21.5 °C	5 mm	171	0
1983	41.3 °C10 July 1983	4.0 °C21 February 1983	21.0 °C	10 mm	159	0
1982	40.1 °C12 June 1982	4.1 °C6 February 1982	21.2 °C	15 mm	164	0
1981	42.5 °C23 April 1981	4.7 °C31 January 1981	21.5 °C	4 mm	183	0
1980	42.9 °C20 May 1980	5.2 °C3 March 1980	21.7 °C	9 mm	182	0
1979	43.0 °C23 June 1979	5.2 °C11 January 1979	22.2 °C	7 mm	183	0
1978	44.1 °C22 June 1978	3.1 °C5 January 1978	21.8 °C	19 mm	183	0
1977	43.8 °C31 May 1977	3.8 °C10 January 1977	21.7 °C	21 mm	162	0
1976	42.1 °C8 June 1976	3.0 °C26 January 1976	21.5 °C	8 mm	184	0
1975	39.6 °C28 June 1975	4.2 °C11 February 1975	21.6 °C	47 mm	177	0
1974	40.5 °C18 June 1974	2.9 °C24 January 1974	21.8 °C	34 mm	189	0
1973	42.1 °C21 July 1973	3.2 °C17 January 1973	21.6 °C	12 mm	182	0
1972	41.7 °C19 June 1972	4.2 °C29 January 1972	21.8 °C	27 mm	174	0
1971	39.8 °C18 June 1971	5.3 °C17 December 1971	21.7 °C	54 mm	165	0
1970	46.8 °C21 May 1970	2.8 °C21 December 1970	21.7 °C	18 mm	172	0
1969	45.2 °C16 June 1969	4.4 °C6 January 1969	22.0 °C	28 mm	176	0
1968	43.9 °C14 August 1968	4.3 °C15 January 1968	21.7 °C	19 mm	170	0
1967	44.5 °C21 June 1967	3.9 °C23 January 1967	20.9 °C	49 mm	159	0
1966	41.1 °C2 June 1966	2.7 °C8 January 1966	22.0 °C	47 mm	189	0
1965	45.3 °C13 June 1965	5.3 °C13 January 1965	21.4 °C	16 mm	162	0
1964	42.7 °C30 May 1964	3.1 °C19 January 1964	20.9 °C	19 mm	155	0
1963	43.1 °C18 June 1963	2.8 °C29 January 1963	21.9 °C	8 mm	172	0
1962	44.0 °C11 June 1962	5.9 °C18 February 1962	21.8 °C	4 mm	187	0
1961	46.6 °C7 June 1961	4.9 °C21 January 1961	21.0 °C	32 mm	152	0
1960	41.8 °C5 July 1960	4.1 °C4 February 1960	22.0 °C	12 mm	182	0
1959	44.6 °C10 June 1959	3.1 °C16 February 1959	20.9 °C	5 mm	156	0
1958	41.7 °C18 April 1958	4.3 °C28 January 1958	21.9 °C	6 mm	177	0
1957	41.1 °C15 April 1957	2.8 °C24 January 1957	21.7 °C	13 mm	182	0
1956	43.3 °C23 July 1956	0.8 °C10 February 1956	21.8 °C	11 mm	167	0
1955	42.8 °C30 July 1955	2.8 °C6 January 1955	22.2 °C	9 mm	182	0
1954	42.3 °C20 May 1954	1.5 °C16 January 1954	21.5 °C	22 mm	173	0
1953	42.7 °C16 June 1953	0.5 °C15 January 1953	21.2 °C	12 mm	182	0
1952	42.5 °C24 August 1952	1.4 °C22 January 1952	22.0 °C	9 mm	172	0
1951	41.6 °C9 September 1951	3.2 °C18 January 1951	21.9 °C	23 mm	181	0
1950	39.6 °C20 April 1950	-1.9 °C6 February 1950	21.4 °C	9 mm	173	4
1949	42.3 °C3 June 1949	1.8 °C8 January 1949	20.8 °C	32 mm	167	0
1948	42.1 °C15 June 1948	2.5 °C17 March 1948	20.9 °C	15 mm	160	0
1947	40.1 °C17 May 1947	2.4 °C2 January 1947	22.2 °C	9 mm	184	0
1946	42.2 °C2 June 1946	1.7 °C18 February 1946	22.0 °C	7 mm	185	0
1945	43.1 °C23 August 1945	1.1 °C3 January 1945	21.0 °C	28 mm	167	0
1944	45.0 °C14 June 1944	1.4 °C12 February 1944	21.7 °C	15 mm	181	0
1943	42.4 °C1 October 1943	2.5 °C30 January 1943	21.5 °C	29 mm	172	0
1942	44.8 °C6 May 1942	-1.5 °C7 January 1942	21.9 °C	18 mm	184	2
1941	44.4 °C10 May 1941	1.5 °C30 December 1941	22.2 °C	27 mm	183	0
1940	42.3 °C18 May 1940	0.9 °C20 December 1940	21.3 °C	28 mm	184	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

29.2 °C

+0.7 °C

Hot days (≥ 30 °C)

182 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

6 mm

-11 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	21.6 °C	+2.6 °C	0 mm	-3 mm
Feb	19.3 °C	-1.4 °C	1 mm	-2 mm
Mar	26.1 °C	+2.0 °C	2 mm	-1 mm
Apr	28.7 °C	-0.1 °C	1 mm	-0 mm
May	32.8 °C	+0.1 °C	1 mm	+0 mm
Jun	34.7 °C	-0.6 °C	0 mm	0 mm
Jul	37.2 °C	+1.3 °C	0 mm	0 mm
Aug	36.3 °C	+0.6 °C	0 mm	0 mm
Sep	33.2 °C	-0.4 °C	0 mm	0 mm
Oct	30.5 °C	+0.3 °C	0 mm	-1 mm
Nov	27.4 °C	+2.2 °C	1 mm	-2 mm
Dec	21.8 °C	+1.3 °C	1 mm	-2 mm

The year's extremes

Hottest day

42.1 °C

26 May 2025

Coldest day

5.9 °C

24 Feb 2025

Wettest day

2.0 mm

5 Mar 2025

Windiest day

33.8 km/h

13 May 2025

Strongest gust

64.4 km/h

13 May 2025

Hottest feels-like

43.9 °C

13 Aug 2025

Coldest feels-like

2.7 °C

25 Feb 2025

Sunniest day

13.9 h

28 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 Helwan?

Helwan has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 17 mm of precipitation per year.

What is the hottest day ever recorded in Helwan?

The hottest day measured in Helwan between 1940 and 2025 was 21 May 1970, reaching 46.8 °C.

What is the coldest day in Helwan?

The coldest day measured in Helwan between 1940 and 2025 was 6 February 1950, at -1.9 °C.

Does it snow in Helwan?

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

Has the climate of Helwan warmed?

Yes: Helwan warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Helwan?

The wettest day measured in Helwan between 1940 and 2025 was 20 February 1975, with 39 mm of rain in 24 hours.

What was the windiest day in Helwan?

The windiest day measured in Helwan between 1940 and 2025 was 1 February 1988, with winds reaching 45.3 km/h.

What is the warmest month in Helwan?

The warmest month in Helwan is July (29.2 °C on average); the coldest is January (13.0 °C).

How much does it rain in Helwan?

Helwan receives on average 17 mm of precipitation per year, spread over about 4 rainy days.

Is it sunny in Helwan?

Helwan gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.

Are there tropical nights in Helwan?

Yes: Helwan has on average 118 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Helwan?

In Helwan, between 1940 and 2025, the highest apparent temperature reached 46.9 °C on 7 June 1961, and the lowest was -5.4 °C on 6 February 1950.

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