Johannesburg weather in January 2025

Expect 79°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Johannesburg in January. Check more long-term weather averages for Johannesburg in January before you book your next holiday to South Africa in 2025/2026.

  • 79°F maximum daytime temperature in January in Johannesburg79
    79°F max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in January in Johannesburg14
    14 days with some rainfall
  • 59°F minimum night-time temperature in January in Johannesburg59
    59°F 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
  • 5.3 inches monthly rainfall in January in Johannesburg5.3
    5.3 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Johannesburg11
    11+ (Extreme) UV index

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Johannesburg by month

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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)  |  Imperial (°F)

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More about South Africa

How hot is it in Johannesburg in January?

Daytime temperatures usually reach 79°F in Johannesburg in January with low heat and humidity, falling to 59°F 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 5.3 inches.

Johannesburg January sunrise & sunset times

Browse the sunrise and sunset times for Johannesburg in January 2025. Select a month to view Johannesburg sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:19 19:04
Thursday, 16th January 2025 05:30 19:05
Friday, 31st January 2025 05:42 19:00

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