Johannesburg weather in 2023
Johannesburg weather in 2023, with 365 daily observations from Open-Meteo archive data.
Interactive graph
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Use the graph view to inspect 2023 alongside other available years for Johannesburg.
Year summary
In 2023, Johannesburg averaged 22.8 C for daily highs and 10.1 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2023 with the 2023-2025 archive baseline. The 2023 average daily high was 0.0 C from that baseline, and total precipitation was -48.3 mm from the baseline total.
The warmest month was November, with an average high of 26.3 C, while July had the lowest average low at 3.5 C.
The wettest month was February, totaling 181.7 mm. The hottest day reached 32.5 C on October 8, 2023.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 14.0 | 26.2 | 55.5 | 31 |
| February | 14.1 | 23.6 | 181.7 | 28 |
| March | 13.0 | 24.4 | 28.1 | 31 |
| April | 10.3 | 22.9 | 12.3 | 30 |
| May | 8.0 | 18.9 | 52.6 | 31 |
| June | 4.9 | 17.8 | 6.3 | 30 |
| July | 3.5 | 16.4 | 1.6 | 31 |
| August | 5.4 | 20.6 | 0.3 | 31 |
| September | 9.5 | 25.2 | 11.9 | 30 |
| October | 11.3 | 25.8 | 54.7 | 31 |
| November | 13.3 | 26.3 | 48.4 | 30 |
| December | 14.3 | 26.0 | 110.9 | 31 |
Daily records in 2023
| Record | Date | Value |
|---|---|---|
| Hottest day | October 8, 2023 | 32.5 C |
| Coldest night | July 10, 2023 | -2.3 C |
| Wettest day | February 1, 2023 | 34.7 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.