Johannesburg weather in January
Temperature, rain and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Good
Best time to visit: April – October
What is the weather like in Johannesburg in January?
In January, Johannesburg is warm: daytime highs average 24 °C, and nights cool down to about 14 °C. The sun shines for around 7 hours a day. It rains often – on about 16 days, adding up to 140 mm. All in all, January is a good month for a holiday in Johannesburg.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 62 | 65 | 69 |
| Day | 24° | 24° | 24° |
| Night | 14° | 14° | 14° |
| Sun | 7 h | 7 h | 6 h |
| Rain days | 18 | 16 | 14 |
More details for January
- Daylight
- 13 h 37 min05:28 – 19:05
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Africa/Johannesburg
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 30 %11 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Johannesburg in January: quick answers
Is Johannesburg hot in January?
Warm rather than hot: in January, daytime highs in Johannesburg average 24 °C and nights cool to about 14 °C.
Does it rain much in Johannesburg in January?
It rains often – on about 16 days, adding up to 140 mm.
Johannesburg month by month
The whole year in JohannesburgAll destinations: South AfricaWhere to go in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences