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Weather in City of Johannesburg

This month here (1 to 5 November): hottest day 30.6 °C, 15 mm of rain; a normal November has 100 mm. Coldest night 14.5 °C on 3 November 2026.

Modelled estimates from a weather reanalysis, averaged over the whole place: not readings from a weather station, and not a forecast. Weather here is averaged over a 9 km grid: the 25 grid cells the municipality overlaps, each weighted by its area in it.

November so far, day by day

Nov	High °C	Low °C	Rain mm
1	30.6	17.7	2.4
2	27.6	16.4	6.0
3	28.5	14.5	4.1
4	29.5	15.6	0.6
5	30.4	17.6	1.6

Highs and lows are for the South African day; rain is for the day to 02:00 the next morning (the weather model’s day ends at midnight UTC). The weather model runs about five days behind the weather, so the newest day here is usually five to twelve days ago. Only whole days are shown.

The last twelve months against normal

Rain each month, November 2025 to October 2026 (this month to 5 November 2026). Bars: rain. Lines: the 1991 to 2020 normal.

Show the numbers

Rain each month, November 2025 to October 2026 (this month to 5 November 2026).: every figure
When or what	Figure
November	196 mm, normal 100 mm
December	175 mm, normal 138 mm
January	136 mm, normal 129 mm
February	79 mm, normal 112 mm
March	218 mm, normal 91 mm
April	82 mm, normal 45 mm
May	31 mm, normal 18 mm
June	8.8 mm, normal 8.0 mm
July	0.4 mm, normal 3.5 mm
August	29 mm, normal 9.9 mm
September	89 mm, normal 22 mm
October	6.9 mm, normal 74 mm

Every year since 1950

19502025

Rain each year, 1950 to 2025. Up: wetter than the 1991 to 2020 normal (751 mm a year). Down: drier.

Show the numbers

Rain each year, 1950 to 2025.: every figure
When or what	Figure
1950	644 mm (-14% on the normal)
1951	95 mm (-87% on the normal)
1952	188 mm (-75% on the normal)
1953	324 mm (-57% on the normal)
1954	469 mm (-38% on the normal)
1955	836 mm (+11% on the normal)
1956	687 mm (-9% on the normal)
1957	1,074 mm (+43% on the normal)
1958	1,244 mm (+66% on the normal)
1959	640 mm (-15% on the normal)
1960	691 mm (-8% on the normal)
1961	649 mm (-14% on the normal)
1962	1,031 mm (+37% on the normal)
1963	761 mm (+1% on the normal)
1964	808 mm (+8% on the normal)
1965	376 mm (-50% on the normal)
1966	654 mm (-13% on the normal)
1967	968 mm (+29% on the normal)
1968	551 mm (-27% on the normal)
1969	906 mm (+21% on the normal)
1970	696 mm (-7% on the normal)
1971	885 mm (+18% on the normal)
1972	825 mm (+10% on the normal)
1973	939 mm (+25% on the normal)
1974	851 mm (+13% on the normal)
1975	909 mm (+21% on the normal)
1976	894 mm (+19% on the normal)
1977	824 mm (+10% on the normal)
1978	775 mm (+3% on the normal)
1979	827 mm (+10% on the normal)
1980	755 mm (+1% on the normal)
1981	819 mm (+9% on the normal)
1982	731 mm (-3% on the normal)
1983	765 mm (+2% on the normal)
1984	710 mm (-5% on the normal)
1985	712 mm (-5% on the normal)
1986	867 mm (+15% on the normal)
1987	975 mm (+30% on the normal)
1988	915 mm (+22% on the normal)
1989	929 mm (+24% on the normal)
1990	698 mm (-7% on the normal)
1991	803 mm (+7% on the normal)
1992	514 mm (-32% on the normal)
1993	762 mm (+1% on the normal)
1994	604 mm (-20% on the normal)
1995	959 mm (+28% on the normal)
1996	978 mm (+30% on the normal)
1997	967 mm (+29% on the normal)
1998	716 mm (-5% on the normal)
1999	734 mm (-2% on the normal)
2000	1,241 mm (+65% on the normal)
2001	811 mm (+8% on the normal)
2002	637 mm (-15% on the normal)
2003	557 mm (-26% on the normal)
2004	766 mm (+2% on the normal)
2005	656 mm (-13% on the normal)
2006	894 mm (+19% on the normal)
2007	492 mm (-34% on the normal)
2008	726 mm (-3% on the normal)
2009	850 mm (+13% on the normal)
2010	861 mm (+15% on the normal)
2011	795 mm (+6% on the normal)
2012	736 mm (-2% on the normal)
2013	649 mm (-14% on the normal)
2014	788 mm (+5% on the normal)
2015	456 mm (-39% on the normal)
2016	743 mm (-1% on the normal)
2017	772 mm (+3% on the normal)
2018	637 mm (-15% on the normal)
2019	733 mm (-2% on the normal)
2020	700 mm (-7% on the normal)
2021	827 mm (+10% on the normal)
2022	739 mm (-2% on the normal)
2023	599 mm (-20% on the normal)
2024	523 mm (-30% on the normal)
2025	1,319 mm (+76% on the normal)

Wettest: 2025 (1,319 mm). Driest: 1951 (95 mm). Hottest day since our daily figures start in 2023: 34.5 °C in December 2024.

A normal year here (1991 to 2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rain mm	129	112	91	45	18	8	4	10	22	74	100	138
Mean °C	20.2	20.0	18.5	15.8	12.9	10.0	9.9	12.9	17.0	18.7	19.1	19.9

Each ward

Everything we hold for City of Johannesburg, on one page

Source

Modelled estimates from a weather reanalysis, averaged over the whole place: not readings from a weather station, and not a forecast. The weather model runs about five days behind the weather, so the newest day here is usually five to twelve days ago.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Muñoz Sabater, J. (2019): ERA5-Land hourly data from 1950 to present, and ERA5-Land monthly averaged data from 1950 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). DOI 10.24381/cds.e2161bac and 10.24381/cds.68d2bb30. ERA5-Land on the Climate Data Store, under CC BY 4.0.

What we changed: we cut ERA5-Land to South Africa, averaged its 9 km grid cells over each ward, municipality, district and province by the area of the place in each cell (MDB boundaries, 2026), took each day’s high and low from 16 of its hourly values, added up days into months, and averaged 1991 to 2020 for the normals.

Dataset: rainfall and temperature by ward, release of 5 November 2026. The South African Weather Service issues the official forecasts and warnings.