Weather Averages Johannesburg International Airport, South Africa

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Weather Averages for
Johannesburg International Airport, South Africa


Latitude: 26°8'S, Longitude: 28°14'E, Elevation: 5576.0 ft, Distance: 0.00 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 21 years		 °F 60 69 68 66 60 57 51 51 55 62 64 66 66
Average high temperature
over 21 years		 °F 69 77 75 73 69 66 60 60 64 71 73 73 75
Average low temperature
over 21 years		 °F 51 60 59 57 53 48 42 42 46 51 53 55 59
Highest recorded temperature
over 21 years		 °F 91 91 91 89 84 82 73 73 78 87 89 89 89
Lowest recorded temperature
over 21 years		 °F 19 46 48 37 26 30 19 23 26 30 37 36 48
Average precipitation
over 40 years		 in 28.7 4.9 3.8 3.3 2.1 0.7 0.3 0.2 0.2 1.1 2.9 4.7 4.3
Average dew point
over 17 years		 °F 44 55 55 53 46 37 32 31 33 39 46 50 53
Most recorded rainfall
over 40 years		 in 40.0 13.3 7.5 8.6 5.1 3.4 2.4 2.6 1.8 6.9 7.8 9.1 7.1
Least recorded rainfall
over 40 years		 in 17.6 1.6 0.5 0.6 - - - - - - 0.5 0.5 1.5
Average number of days with thunderstorms
over 15 years		 days 69 12 8 8 4 1 1 1 1 3 8 10 12
Average number of days with fog
over 15 years		 days 48 2 3 5 5 5 5 5 5 3 3 4 3
Average morning relative humidity
over 15 years		 % 77 85 88 85 80 70 70 68 66 68 77 82 84
Average evening relative humidity
over 17 years		 % 44 52 54 53 47 38 38 34 32 34 42 49 51
Average wind speed
over 17 years		 mph 9.0 9.0 9.0 8.0 8.0 9.0 9.0 8.0 10.0 11.0 11.0 10.0 9.0
Average number of days above 80°F
over 21 years		 days 44 10 6 4 1 - - - - 4 6 6 7
Average number of days below 45°F
over 21 years		 days 81 - - - 3 10 22 23 15 6 2 - -
Check weather averages for nearby locations (some locations might offer more data):
Latitude: 26°12'S, Longitude: 28°3'E, Elevation: 0.0 ft, Distance: 12.27 mi
Latitude: 25°55'S, Longitude: 28°13'E, Elevation: 0.0 ft, Distance: 15.01 mi
Latitude: 25°45'S, Longitude: 28°16'E, Elevation: 0.0 ft, Distance: 26.57 mi
Latitude: 25°44'S, Longitude: 28°11'E, Elevation: 4265.0 ft, Distance: 27.81 mi
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