Ga-Rankuwa climate — normals and trends

Q: What is the climate of Ga-Rankuwa?

Ga-Rankuwa has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 19.1 °C and it receives 630 mm of precipitation per year.

Q: What is the hottest day ever recorded in Ga-Rankuwa?

The hottest day measured in Ga-Rankuwa between 1940 and 2025 was 7 January 2016, reaching 40.5 °C.

Q: What is the coldest day in Ga-Rankuwa?

The coldest day measured in Ga-Rankuwa between 1940 and 2025 was 15 July 1963, at -1.8 °C.

Q: Does it snow in Ga-Rankuwa?

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

Q: Has the climate of Ga-Rankuwa warmed?

Yes: Ga-Rankuwa warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Ga-Rankuwa?

The wettest day measured in Ga-Rankuwa between 1940 and 2025 was 19 February 2025, with 106 mm of rain in 24 hours.

Q: What was the windiest day in Ga-Rankuwa?

The windiest day measured in Ga-Rankuwa between 1940 and 2025 was 28 September 2012, with winds reaching 39.8 km/h.

Q: What is the warmest month in Ga-Rankuwa?

The warmest month in Ga-Rankuwa is January (23.5 °C on average); the coldest is June (12.2 °C).

Q: How much does it rain in Ga-Rankuwa?

Ga-Rankuwa receives on average 630 mm of precipitation per year, spread over about 89 rainy days.

Q: Is it sunny in Ga-Rankuwa?

Ga-Rankuwa gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Ga-Rankuwa (South Africa) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 19.1 °C and it receives 630 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 January (23.5 °C on average) and the coldest is June (12.2 °C). Rainfall peaks in December.

Ga-Rankuwa averages 0 frost days, 80 hot days (≥ 30 °C) and 89 rainy days per year.

Ga-Rankuwa has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.5 °C (on 7 January 2016) and the coldest -1.8 °C (on 15 July 1963).

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

Ga-RankuwaNorth West

coords: -25.62°, 27.99°
period: 1940–2025 · 86 yrs

BShHot semi-aridWarmest monthJanuaryColdest monthJuneWettest monthDecemberDriest monthJuly

Mean daily temperature

19.1°C

Average daily high

26.0°C

Average daily low

13.6°C

Annual rainfall

630mm

Sunshine / day

10.8h

Mean relative humidity

57%

Average peak wind

15.1km/h

Seasonal range

11.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

80 d/yr

Rainy days (≥ 1 mm)

89 d/yr

Annual snowfall

0.0 cm

Average feels-like high

25.7 °C

Average feels-like low

12.1 °C

Average peak gust

31.7 km/h

Tropical nights (≥ 20 °C)

25 d/yr

Solar radiation

20.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.25 · 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

40.5 °C

7 January 2016

Coldest day

-1.8 °C

15 July 1963

Wettest day

106 mm

19 February 2025

Windiest day

39.8 km/h

28 September 2012

Strongest gust

81.4 km/h

28 September 2012

Hottest feels-like

40.0 °C

7 January 2016

Coldest feels-like

-5.8 °C

9 July 2024

Sunniest day

13.6 h

23 December 2023

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.2 °C15 October 2025	0.8 °C30 July 2025	19.0 °C	1,165 mm	60	0
2024	38.6 °C4 December 2024	-1.5 °C9 July 2024	20.7 °C	352 mm	142	1
2023	36.9 °C28 January 2023	1.4 °C31 July 2023	20.0 °C	484 mm	123	0
2022	37.1 °C4 October 2022	1.0 °C17 June 2022	19.5 °C	675 mm	81	0
2021	35.2 °C22 January 2021	0.3 °C23 July 2021	19.3 °C	776 mm	77	0
2020	36.2 °C20 October 2020	0.9 °C17 July 2020	19.3 °C	561 mm	81	0
2019	38.0 °C28 October 2019	2.1 °C4 July 2019	20.8 °C	500 mm	138	0
2018	38.1 °C7 January 2018	1.1 °C3 July 2018	20.2 °C	491 mm	118	0
2017	36.5 °C7 November 2017	3.3 °C9 June 2017	19.6 °C	721 mm	89	0
2016	40.5 °C7 January 2016	1.4 °C28 July 2016	20.6 °C	490 mm	137	0
2015	38.9 °C11 November 2015	2.4 °C18 July 2015	21.1 °C	329 mm	151	0
2014	36.2 °C16 January 2014	1.4 °C7 June 2014	19.4 °C	704 mm	85	0
2013	38.2 °C25 January 2013	2.7 °C13 August 2013	19.8 °C	446 mm	118	0
2012	36.0 °C4 March 2012	1.7 °C12 June 2012	19.4 °C	673 mm	94	0
2011	38.9 °C24 October 2011	1.5 °C3 June 2011	19.2 °C	610 mm	94	0
2010	37.5 °C13 February 2010	1.4 °C17 June 2010	19.8 °C	634 mm	113	0
2009	35.1 °C18 December 2009	2.1 °C26 July 2009	19.0 °C	671 mm	77	0
2008	36.0 °C3 November 2008	1.8 °C7 July 2008	19.2 °C	514 mm	89	0
2007	36.4 °C4 February 2007	0.6 °C24 May 2007	19.4 °C	454 mm	99	0
2006	36.5 °C25 October 2006	1.6 °C6 August 2006	18.7 °C	720 mm	49	0
2005	37.9 °C3 November 2005	3.7 °C11 July 2005	19.9 °C	468 mm	100	0
2004	35.8 °C10 November 2004	1.5 °C16 July 2004	18.9 °C	595 mm	75	0
2003	37.9 °C16 January 2003	1.4 °C21 August 2003	20.1 °C	413 mm	139	0
2002	36.5 °C19 October 2002	2.2 °C18 July 2002	19.5 °C	404 mm	101	0
2001	37.5 °C11 January 2001	0.4 °C20 July 2001	19.0 °C	621 mm	73	0
2000	35.1 °C19 October 2000	-0.4 °C17 July 2000	17.9 °C	975 mm	35	1
1999	37.2 °C1 March 1999	2.4 °C1 July 1999	19.3 °C	540 mm	76	0
1998	37.2 °C7 February 1998	0.6 °C5 July 1998	19.5 °C	540 mm	101	0
1997	36.2 °C29 September 1997	0.5 °C17 June 1997	18.6 °C	726 mm	79	0
1996	35.4 °C5 November 1996	1.0 °C9 July 1996	18.4 °C	776 mm	56	0
1995	36.6 °C12 October 1995	0.9 °C17 June 1995	18.9 °C	813 mm	77	0
1994	35.8 °C23 December 1994	0.0 °C13 July 1994	18.4 °C	387 mm	67	0
1993	36.4 °C19 January 1993	0.8 °C17 June 1993	19.5 °C	502 mm	80	0
1992	39.0 °C27 February 1992	0.1 °C26 June 1992	20.1 °C	399 mm	128	0
1991	34.2 °C8 October 1991	1.1 °C24 June 1991	19.0 °C	580 mm	83	0
1990	36.5 °C14 November 1990	0.5 °C14 July 1990	19.2 °C	423 mm	96	0
1989	35.4 °C1 November 1989	0.2 °C19 July 1989	18.7 °C	642 mm	59	0
1988	37.9 °C31 January 1988	0.7 °C9 June 1988	19.1 °C	616 mm	85	0
1987	35.4 °C20 February 1987	0.7 °C23 June 1987	19.3 °C	666 mm	97	0
1986	35.5 °C13 January 1986	3.4 °C30 June 1986	19.2 °C	660 mm	79	0
1985	35.6 °C24 November 1985	0.7 °C13 July 1985	19.3 °C	589 mm	75	0
1984	36.4 °C29 December 1984	2.6 °C19 June 1984	19.3 °C	512 mm	93	0
1983	36.5 °C11 January 1983	1.3 °C26 June 1983	19.7 °C	535 mm	97	0
1982	37.1 °C28 December 1982	-0.2 °C17 June 1982	18.9 °C	529 mm	89	1
1981	37.0 °C6 November 1981	0.2 °C17 June 1981	18.0 °C	714 mm	54	0
1980	34.8 °C2 January 1980	0.6 °C24 June 1980	18.3 °C	545 mm	52	0
1979	34.7 °C20 March 1979	0.5 °C5 July 1979	18.8 °C	593 mm	82	0
1978	34.7 °C29 September 1978	0.7 °C21 June 1978	18.6 °C	578 mm	40	0
1977	35.3 °C15 January 1977	1.4 °C4 July 1977	18.8 °C	594 mm	67	0
1976	33.3 °C18 September 1976	0.4 °C21 June 1976	17.5 °C	805 mm	27	0
1975	35.2 °C16 October 1975	1.6 °C10 July 1975	18.1 °C	683 mm	50	0
1974	34.4 °C5 November 1974	1.9 °C1 August 1974	18.1 °C	659 mm	36	0
1973	37.3 °C19 January 1973	2.4 °C5 July 1973	18.8 °C	762 mm	85	0
1972	37.1 °C3 December 1972	-1.2 °C2 August 1972	19.0 °C	544 mm	82	1
1971	34.7 °C25 December 1971	2.3 °C18 July 1971	18.3 °C	703 mm	47	0
1970	35.7 °C14 December 1970	2.4 °C10 June 1970	19.4 °C	623 mm	95	0
1969	37.8 °C8 February 1969	0.8 °C22 July 1969	18.8 °C	777 mm	70	0
1968	36.2 °C5 January 1968	-1.7 °C15 June 1968	18.3 °C	544 mm	91	2
1967	34.9 °C8 January 1967	-0.6 °C12 June 1967	17.9 °C	791 mm	48	1
1966	37.5 °C2 January 1966	3.9 °C27 July 1966	19.3 °C	669 mm	79	0
1965	37.0 °C31 October 1965	-0.2 °C26 June 1965	19.2 °C	301 mm	104	1
1964	36.4 °C23 February 1964	-1.7 °C27 June 1964	18.9 °C	622 mm	90	3
1963	38.0 °C29 December 1963	-1.8 °C15 July 1963	18.7 °C	595 mm	81	2
1962	37.1 °C30 October 1962	2.3 °C15 June 1962	19.2 °C	865 mm	96	0
1961	37.2 °C24 October 1961	2.7 °C4 August 1961	19.0 °C	863 mm	76	0
1960	35.6 °C11 January 1960	1.9 °C25 July 1960	18.6 °C	790 mm	80	0
1959	36.4 °C17 October 1959	3.9 °C27 May 1959	18.6 °C	624 mm	73	0
1958	34.0 °C26 September 1958	2.2 °C17 June 1958	18.6 °C	994 mm	46	0
1957	36.7 °C21 December 1957	-0.3 °C20 June 1957	18.5 °C	727 mm	36	1
1956	34.0 °C2 February 1956	1.2 °C14 June 1956	18.3 °C	857 mm	32	0
1955	33.8 °C9 October 1955	-0.6 °C29 June 1955	17.6 °C	692 mm	35	1
1954	37.0 °C19 February 1954	0.8 °C27 July 1954	19.9 °C	250 mm	140	0
1953	38.0 °C22 January 1953	0.4 °C1 July 1953	19.2 °C	586 mm	71	0
1952	37.8 °C20 November 1952	1.9 °C4 July 1952	19.3 °C	611 mm	83	0
1951	36.9 °C9 October 1951	1.9 °C24 June 1951	18.9 °C	682 mm	85	0
1950	36.5 °C30 December 1950	3.0 °C1 August 1950	18.7 °C	663 mm	71	0
1949	37.7 °C13 January 1949	3.3 °C16 July 1949	18.9 °C	724 mm	81	0
1948	35.1 °C24 November 1948	1.8 °C23 July 1948	18.0 °C	769 mm	50	0
1947	37.2 °C8 October 1947	0.7 °C13 July 1947	18.1 °C	895 mm	50	0
1946	36.2 °C29 October 1946	1.5 °C6 June 1946	18.3 °C	760 mm	48	0
1945	35.7 °C7 November 1945	0.7 °C9 July 1945	18.7 °C	684 mm	55	0
1944	36.6 °C26 September 1944	3.3 °C24 July 1944	18.4 °C	772 mm	38	0
1943	34.6 °C10 October 1943	2.8 °C21 July 1943	18.2 °C	720 mm	29	0
1942	32.8 °C11 September 1942	1.6 °C20 July 1942	18.1 °C	906 mm	25	0
1941	37.6 °C16 October 1941	1.9 °C5 July 1941	20.3 °C	344 mm	117	0
1940	36.7 °C12 November 1940	0.4 °C18 July 1940	19.9 °C	410 mm	104	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

25.6 °C

-0.4 °C

Hot days (≥ 30 °C)

60 d/yr

-20

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1165 mm

+535 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.8 °C	-0.4 °C	236 mm	+134 mm
Feb	28.1 °C	-0.7 °C	308 mm	+219 mm
Mar	26.9 °C	-0.8 °C	112 mm	+41 mm
Apr	23.4 °C	-1.9 °C	118 mm	+70 mm
May	22.6 °C	-0.5 °C	3 mm	-13 mm
Jun	21.0 °C	+0.7 °C	1 mm	-6 mm
Jul	20.9 °C	+0.4 °C	3 mm	-1 mm
Aug	25.5 °C	+1.9 °C	9 mm	+3 mm
Sep	29.0 °C	+1.6 °C	27 mm	+9 mm
Oct	28.4 °C	-0.4 °C	54 mm	-3 mm
Nov	25.6 °C	-2.9 °C	143 mm	+47 mm
Dec	27.0 °C	-1.7 °C	152 mm	+38 mm

The year's extremes

Hottest day

34.2 °C

15 Oct 2025

Coldest day

0.8 °C

30 Jul 2025

Wettest day

105.9 mm

19 Feb 2025

Windiest day

31.2 km/h

6 Sep 2025

Strongest gust

62.6 km/h

16 Nov 2025

Hottest feels-like

37.2 °C

23 Feb 2025

Coldest feels-like

-2.4 °C

30 Jul 2025

Sunniest day

13.6 h

15 Dec 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 Ga-Rankuwa?

Ga-Rankuwa has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 19.1 °C and it receives 630 mm of precipitation per year.

What is the hottest day ever recorded in Ga-Rankuwa?

The hottest day measured in Ga-Rankuwa between 1940 and 2025 was 7 January 2016, reaching 40.5 °C.

What is the coldest day in Ga-Rankuwa?

The coldest day measured in Ga-Rankuwa between 1940 and 2025 was 15 July 1963, at -1.8 °C.

Does it snow in Ga-Rankuwa?

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

Has the climate of Ga-Rankuwa warmed?

Yes: Ga-Rankuwa warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Ga-Rankuwa?

The wettest day measured in Ga-Rankuwa between 1940 and 2025 was 19 February 2025, with 106 mm of rain in 24 hours.

What was the windiest day in Ga-Rankuwa?

The windiest day measured in Ga-Rankuwa between 1940 and 2025 was 28 September 2012, with winds reaching 39.8 km/h.

What is the warmest month in Ga-Rankuwa?

The warmest month in Ga-Rankuwa is January (23.5 °C on average); the coldest is June (12.2 °C).

How much does it rain in Ga-Rankuwa?

Ga-Rankuwa receives on average 630 mm of precipitation per year, spread over about 89 rainy days.

Is it sunny in Ga-Rankuwa?

Ga-Rankuwa gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Are there tropical nights in Ga-Rankuwa?

Yes: Ga-Rankuwa has on average 25 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ga-Rankuwa?

In Ga-Rankuwa, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 7 January 2016, and the lowest was -5.8 °C on 9 July 2024.

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