Avg high
25°C
Avg low
15°C
Rainfall
108 mm
Rain days
14.2
Sunshine
11.4 h/day
Daylight
13.5 h
What to pack for Johannesburg in January
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
Humidity averages 68%; max daily wind around 18 km/h.
How January compares
Best months in Johannesburg: March–October. See the full best time to visit Johannesburg guide.
Johannesburg in January: the details
In January, Johannesburg sees average daytime highs of 25°C (78°F) and overnight lows of 15°C (58°F). Rainfall totals roughly 108 mm across 14.2 rainy days, and the sun shines about 11.4 hours per day with 13.5 hours of daylight mid-month. Relative humidity averages 68%.
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Johannesburg, South Africa (-26.2, 28.04) — see our methodology. Actual conditions vary year to year.
Where should you go next month?
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