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Climate · Johannesburg

Johannesburg in January

Warm and wet, as the days shorten.

Typical weather, averaged over 30 years

January in Johannesburg is warm: highs near 79°F, lows near 58°F. Rain falls on about four days a week, and the days shorten by 16 minutes from the first week to the last.January in Johannesburg is warm: highs near 26°C, lows near 14°C. Rain falls on about four days a week, and the days shorten by 16 minutes from the first week to the last.

High
79°F26°Caverage
Low
58°F14°Caverage
Wet days
4a week · 57% of days
Daylight
13h 35mon average

Is January a good time to visit Johannesburg?

A good month, just outside Johannesburg's best months, which run in two parts: April, or August to October.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How January sits in the year

week by week

Temperature

Highs near 79°F in January, against 64°F to 80°F through the year.Highs near 26°C in January, against 18°C to 27°C through the year.

Chance of a wet day

57% of days in January, against 3% to 62% through the year.

Cloud cover

41% cover in January, against 11% to 44% through the year.

Daylight

13h 35m in January, against 10h 31m to 13h 45m through the year.

Week by week, lightly smoothed, with January shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. December79°26°low 57°low 14°4 wet days a weekRain on about four days a week.
  2. January79°26°low 58°low 14°4 wet days a weekRain on about four days a week.
  3. February79°26°low 58°low 14°4 wet days a weekRain on about four days a week.

Where Johannesburg sits, in January

Africa/Johannesburg
this place
typical high in January 40°F4°C95°F35°C
Sunrise, mid-January
5:28 AMsets 7:05 PM
Above the sea
1,750 mhigh country
Latitude
26.2°Ssouthern hemisphere
Nearest of ours
Pretoria53 km north

The land around Johannesburg, shaded by its typical high in January, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in South Africa in January

high · low · wet days
See January on the planning mapThe whole year in Johannesburg

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Johannesburg. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,750 m) against the climate model's (1,673 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,750 m) against the climate model's (1,673 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.