Johannesburg weather in January 2026

Expect daytime maximum temperatures of 26°C in Johannesburg, South Africa in January based on long-term weather averages. There are 8 hours of sunshine per day on average with 14 days with some rainfall and typically 135 mm of rainfall in the month.

  • 26°C maximum daytime temperature in January in Johannesburg26
    26°C max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in January in Johannesburg14
    14 days with some rainfall
  • 15°C minimum night-time temperature in January in Johannesburg15
    15°C min night temperature
  • 14 hours of daylight per day in January in Johannesburg14
    14 hours of daylight per day
  • Low heat & humidity in January in JohannesburgL
    Low heat & humidity
  • 135 mm monthly rainfall in January in Johannesburg135
    135 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Johannesburg11
    11+ (Extreme) UV index

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The January weather guide for South Africa (Johannesburg) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about South Africa

How hot is it in Johannesburg in January?

Daytime temperatures usually reach 26°C in Johannesburg in January with low heat and humidity, falling to 15°C at night.

How sunny is it in Johannesburg in January?

There are normally 8 hours of bright sunshine each day in Johannesburg in January - that's 61% of daylight hours.

Does it rain in Johannesburg in January?

There are usually 14 days with some rain in Johannesburg in January and the average monthly rainfall is 135mm.

Johannesburg January sunrise & sunset times

Browse the sunrise and sunset times for Johannesburg in January 2026. Select a month to view Johannesburg sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 05:19 19:04
Friday, 16th January 2026 05:30 19:05
Saturday, 31st January 2026 05:42 19:00

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