Germiston monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Germiston

Germiston average temperature chart (Celsius) Germiston average temperature chart (Fahrenheit)
Average monthly temperatures in Germiston (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 26.4 25.6 24.7 22 19.8 16.7 17.3 20 23.1 24.3 24.8 25.9
°F 79.5 78 76.5 71.6 67.6 62.1 63.2 68.1 73.6 75.7 76.7 78.6

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Germiston monthly rainfall chart (mm) Germiston monthly rainfall chart (inches)
Average monthly rainfall in Germiston (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 123 93 90 49 16 8 5 7 26 74 110 107
inches 4.8 3.6 3.5 1.9 0.6 0.3 0.2 0.3 1 2.9 4.3 4.2
Rainy days 15 10 11 8 3 2 1 2 4 9 13 14

Average annual rainfall in Germiston: 707.8mm (278.7 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Germiston

Germiston average daily sunshine chart
Average daily sunshine Germiston
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.7 8.7 8.4 8.5 9.5 9.5 9.9 10.2 10.1 9.3 8.9 9.2

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Germiston average minimum / maximum temperatures (Celsius) Germiston average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Germiston (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 15 14.4 13 9.7 5.7 2.3 2.1 4.8 8.6 11.2 12.9 14.3
Max °C 26.7 25.9 25 22.3 20.1 17.1 17.7 20.4 23.5 24.6 25.1 26.2
Min °F 58.9 57.8 55.4 49.5 42.3 36.1 35.8 40.6 47.4 52.2 55.2 57.7
Max °F 69.4 68.2 66.2 60.8 55.2 49.5 49.8 54.7 60.8 64.2 66.2 68.4

Sea temperature

The graph below shows the average sea temperature.

Germiston average sea temperature chart (Celsius) Germiston average sea temperature chart (Fahrenheit)
Average sea temperature around Germiston in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.7 25.1 24.8 23.9 22.7 21.5 20.7 20.4 20.6 21.3 22.4 23.7
°F 76.4 77.1 76.6 75 72.8 70.7 69.2 68.7 69 70.3 72.3 74.6

Wind speed

The graph below shows the average wind speed.

Germiston average winspeed by month (km/h) Germiston average winspeed by month (mph)
Average wind speed in Germiston (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 9 8 8 8 9 9 10 12 13 12 10
mph 6 5 5 5 5 5 5 7 8 8 8 6

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Germiston relative humidity averages
Average relative humidity in Germiston
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
67% 68% 67% 65% 57% 54% 50% 47% 48% 55% 63% 64%

Other monthly averages

UV index Best time to go?

Germiston weather stats

Germiston weather statistics
Hottest month: January 26.4°C 79.5°F
Driest month: July 5mm 0.2ins
Sunniest month: July 9.9hrs
Coldest month: June 16.7°C 62.1°F
Wettest month: January 123mm 4.8ins
Warmest sea: February 25.1°C 77.2°F
Map showing location of Germiston (-26.23481, 28.17665) Germiston map pin © Google

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