Weather in Johannesburg in January
In an average January, Johannesburg sees a daily high around 26°C and a low around 15°C, based on 1980–2026 of local climate records.
| Average high | 26°C |
|---|---|
| Typical high range | 22°C to 29°C |
| Average low | 15°C |
| Typical low range | 13°C to 17°C |
| Average daily precipitation | 5 mm |
January records
The most extreme January on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total January accumulation.
High
Highest
37°C
2016-01-07
Lowest
14°C
2000-01-15
Low
Highest
21°C
2016-01-07
Lowest
8°C
2001-01-01
Feels-like
Highest
39°C
2016-01-08
Lowest
4°C
2001-01-02
Humidity
Highest
17.0 g/m³
2025-01-07
Lowest
5.4 g/m³
2018-01-01
Wind
Highest
33 km/h
2021-01-24
Lowest
6 km/h
2011-01-09
Gust
Highest
73 km/h
1992-01-31
Lowest
16 km/h
1994-01-26
Precip
Wettest
254 mm
2017
Driest
49 mm
2023
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