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Weather in January in Johannesburg

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< January >
 
Normal Max/ High Temperature 26°C (79°F)
 
Average Temperature 21°C (69°F)
 
Min/ Low Temperature 15°C (59°F)
 
Normal Precipitation 125mm (4.9in)
Number of Wet Days (probability of rain on a day) 15 (48%)
Average Sunlight per day 08:11
Average Daylight per day 13:33
Sunny (Cloudy) Daylight Hours 61% (39%)
Sun altitude at solar noon on the 21st day.
83.2°


  • The average temperature in Johannesburg in January is warm at 20.5 °C (68.9 °F).
  • Afternoons can be hot with average high temperatures reaching 26 °C (78.8 °F).
  • Overnight temperatures are generally mild with an average low of 15 °C (59 °F).
  • In January the mean diurnal temperature variation/ range is 11 °C (19.8 °F).
  • The weather in January is not exactly dry with rain once in a while. Some 125mm (4.9in) of liquid is dumped across an average of 15 days.
  • The skies in Johannesburg are moderately sunny having on balance a pleasing 8:11 of blazing solar radiation daily.
  • The shortest day is 13:20 long and the longest day is 13:43 long with an average length of 13:33.
  • There are approximately 5:14 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 61% of daylight hours and cloudy 39% of daylight hours.

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Weather Trend Graph for January in Johannesburg, South Africa

Graph of weather in Johannesburg in January

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