Annual Weather Averages Near Johannesburg
Averages are for O.R. Tambo International Airport, which is 13 miles from Johannesburg.
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in Johannesburg
High Temp: 79 °F
Low Temp: 39 °F
Mean Temp: 62 °F
Precipitation: 1.17"
Humidity: 58%
Dew Point: 44 °F
Wind: 8 mph
Pressure: 30.25 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Johannesburg
High Temp: 79 °F
Low Temp: 59 °F
Mean Temp: 69 °F
Precipitation: 2.86"
Humidity: 71%
Dew Point: 57 °F
Wind: 8 mph
Pressure: 30.16 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Johannesburg
High Temp: 79 °F
Low Temp: 58 °F
Mean Temp: 68 °F
Precipitation: 2.32"
Humidity: 69%
Dew Point: 56 °F
Wind: 7 mph
Pressure: 30.20 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Johannesburg
High Temp: 76 °F
Low Temp: 56 °F
Mean Temp: 66 °F
Precipitation: 1.79"
Humidity: 69%
Dew Point: 53 °F
Wind: 7 mph
Pressure: 30.23 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Johannesburg
High Temp: 72 °F
Low Temp: 51 °F
Mean Temp: 61 °F
Precipitation: 0.64"
Humidity: 64%
Dew Point: 47 °F
Wind: 7 mph
Pressure: 30.27 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Johannesburg
High Temp: 68 °F
Low Temp: 45 °F
Mean Temp: 57 °F
Precipitation: 0.07"
Humidity: 52%
Dew Point: 37 °F
Wind: 7 mph
Pressure: 30.29 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Johannesburg
High Temp: 63 °F
Low Temp: 40 °F
Mean Temp: 52 °F
Precipitation: 0.04"
Humidity: 51%
Dew Point: 31 °F
Wind: 8 mph
Pressure: 30.34 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Johannesburg
High Temp: 63 °F
Low Temp: 39 °F
Mean Temp: 51 °F
Precipitation: 0.00"
Humidity: 48%
Dew Point: 29 °F
Wind: 8 mph
Pressure: 30.37 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Johannesburg
High Temp: 69 °F
Low Temp: 44 °F
Mean Temp: 56 °F
Precipitation: 0.05"
Humidity: 45%
Dew Point: 31 °F
Wind: 9 mph
Pressure: 30.31 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Johannesburg
High Temp: 75 °F
Low Temp: 49 °F
Mean Temp: 62 °F
Precipitation: 0.11"
Humidity: 44%
Dew Point: 36 °F
Wind: 10 mph
Pressure: 30.27 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Johannesburg
High Temp: 77 °F
Low Temp: 53 °F
Mean Temp: 65 °F
Precipitation: 1.29"
Humidity: 55%
Dew Point: 45 °F
Wind: 10 mph
Pressure: 30.23 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Johannesburg
High Temp: 77 °F
Low Temp: 55 °F
Mean Temp: 66 °F
Precipitation: 1.98"
Humidity: 63%
Dew Point: 51 °F
Wind: 10 mph
Pressure: 30.17 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Johannesburg
High Temp: 78 °F
Low Temp: 58 °F
Mean Temp: 68 °F
Precipitation: 2.94"
Humidity: 69%
Dew Point: 55 °F
Wind: 9 mph
Pressure: 30.16 "Hg
Visibility: 10 mi