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Climate & Weather Averages in Johannesburg, South Africa

Currently: 62 °F. Passing clouds. (Weather station: O.R. Tambo International Airport, South Africa). See more current weather

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 1992–2021.

All Year Climate & Weather Averages in Johannesburg

High Temp: 80 °F

Low Temp: 39 °F

Mean Temp: 62 °F

Precipitation: 2.59"

Humidity: 58%

Dew Point: 44 °F

Wind: 16 mph

Pressure: 30.12 "Hg

Visibility: 10 mi

January Climate & Weather Averages in Johannesburg

High Temp: 80 °F

Low Temp: 59 °F

Mean Temp: 69 °F

Precipitation: 5.55"

Humidity: 70%

Dew Point: 57 °F

Wind: 16 mph

Pressure: 30.00 "Hg

Visibility: 11 mi

February Climate & Weather Averages in Johannesburg

High Temp: 79 °F

Low Temp: 58 °F

Mean Temp: 69 °F

Precipitation: 4.78"

Humidity: 70%

Dew Point: 56 °F

Wind: 14 mph

Pressure: 30.02 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Johannesburg

High Temp: 77 °F

Low Temp: 56 °F

Mean Temp: 67 °F

Precipitation: 3.80"

Humidity: 68%

Dew Point: 53 °F

Wind: 14 mph

Pressure: 30.06 "Hg

Visibility: 10 mi

April Climate & Weather Averages in Johannesburg

High Temp: 73 °F

Low Temp: 51 °F

Mean Temp: 62 °F

Precipitation: 1.76"

Humidity: 63%

Dew Point: 47 °F

Wind: 14 mph

Pressure: 30.13 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Johannesburg

High Temp: 69 °F

Low Temp: 45 °F

Mean Temp: 57 °F

Precipitation: 0.93"

Humidity: 52%

Dew Point: 37 °F

Wind: 13 mph

Pressure: 30.19 "Hg

Visibility: 10 mi

June Climate & Weather Averages in Johannesburg

High Temp: 65 °F

Low Temp: 40 °F

Mean Temp: 52 °F

Precipitation: 0.32"

Humidity: 49%

Dew Point: 31 °F

Wind: 14 mph

Pressure: 30.27 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Johannesburg

High Temp: 64 °F

Low Temp: 39 °F

Mean Temp: 52 °F

Precipitation: 0.15"

Humidity: 47%

Dew Point: 29 °F

Wind: 14 mph

Pressure: 30.30 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Johannesburg

High Temp: 70 °F

Low Temp: 43 °F

Mean Temp: 57 °F

Precipitation: 0.51"

Humidity: 44%

Dew Point: 31 °F

Wind: 17 mph

Pressure: 30.21 "Hg

Visibility: 10 mi

September Climate & Weather Averages in Johannesburg

High Temp: 77 °F

Low Temp: 49 °F

Mean Temp: 63 °F

Precipitation: 0.86"

Humidity: 42%

Dew Point: 35 °F

Wind: 18 mph

Pressure: 30.13 "Hg

Visibility: 10 mi

October Climate & Weather Averages in Johannesburg

High Temp: 79 °F

Low Temp: 53 °F

Mean Temp: 66 °F

Precipitation: 2.81"

Humidity: 54%

Dew Point: 45 °F

Wind: 19 mph

Pressure: 30.07 "Hg

Visibility: 11 mi

November Climate & Weather Averages in Johannesburg

High Temp: 79 °F

Low Temp: 55 °F

Mean Temp: 67 °F

Precipitation: 4.01"

Humidity: 63%

Dew Point: 51 °F

Wind: 18 mph

Pressure: 30.02 "Hg

Visibility: 11 mi

December Climate & Weather Averages in Johannesburg

High Temp: 79 °F

Low Temp: 58 °F

Mean Temp: 68 °F

Precipitation: 5.62"

Humidity: 69%

Dew Point: 55 °F

Wind: 17 mph

Pressure: 30.01 "Hg

Visibility: 11 mi

Quick Climate Info

Hottest MonthJanuary (69 °F avg)
Coldest MonthJuly (52 °F avg)
Wettest MonthDecember (5.62" avg)
Windiest MonthOctober (19 mph avg)
Annual precip.31.10" (per year)

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