Postmasburg monthly weather averages

Average daytime temperature

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

Postmasburg average temperature chart (Celsius) Postmasburg average temperature chart (Fahrenheit)
Average monthly temperatures in Postmasburg (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 32.3 30.8 28.6 24.7 21.1 17.8 18.3 20.6 24.6 27.3 29.8 31.6
°F 90.2 87.5 83.5 76.4 69.9 64 64.9 69.1 76.3 81.1 85.6 88.9

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.

Postmasburg monthly rainfall chart (mm) Postmasburg monthly rainfall chart (inches)
Average monthly rainfall in Postmasburg (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 47 66 67 43 10 7 5 6 7 19 27 36
inches 1.8 2.6 2.6 1.7 0.4 0.3 0.2 0.2 0.3 0.8 1.1 1.4
Rainy days 6 8 7 6 2 2 1 2 2 4 5 6

Average annual rainfall in Postmasburg: 333.866mm (131.4 inches)

Average daily sunshine

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

Postmasburg average daily sunshine chart
Average daily sunshine Postmasburg
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 11.3 10.1 9.6 9.4 9.5 9.3 10 10.7 10.5 10.9 11.5 12

Day / night temperatures

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

Postmasburg average minimum / maximum temperatures (Celsius) Postmasburg average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Postmasburg (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.5 17.1 14.9 10.6 5.6 2.1 1.5 3.6 7.8 11.2 14.1 16.2
Max °C 32.7 31.2 29 25 21.5 18.2 18.7 21.1 25.1 27.7 30.2 32
Min °F 63.5 62.7 58.7 51.1 42 35.7 34.7 38.4 46 52.1 57.3 61.2
Max °F 77.2 75.4 71.4 64 56.3 50.2 50.2 54.1 61.5 66.9 71.8 75.4

Sea temperature

The graph below shows the average sea temperature.

Postmasburg average sea temperature chart (Celsius) Postmasburg average sea temperature chart (Fahrenheit)
Average sea temperature around Postmasburg in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 22 22.2 21.7 20.7 19.7 18.6 17.9 17.7 18 18.7 19.8 21.1
°F 71.6 71.9 71 69.3 67.4 65.5 64.3 63.9 64.4 65.6 67.6 70

Wind speed

The graph below shows the average wind speed.

Postmasburg average winspeed by month (km/h) Postmasburg average winspeed by month (mph)
Average wind speed in Postmasburg (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 8 7 6 7 7 8 8 9 10 10 10
mph 6 5 5 4 4 4 5 5 6 6 7 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.

Postmasburg relative humidity averages
Average relative humidity in Postmasburg
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
40% 48% 52% 55% 53% 54% 49% 43% 38% 38% 39% 39%

Other monthly averages

UV index Best time to go?

Postmasburg weather stats

Postmasburg weather statistics
Hottest month: January 32.3°C 90.1°F
Driest month: July 5mm 0.2ins
Sunniest month: August 10.7hrs
Coldest month: June 17.8°C 64°F
Wettest month: March 67mm 2.6ins
Warmest sea: February 22.2°C 72°F
Map showing location of Postmasburg (-28.33392, 23.06541) Postmasburg map pin © Google

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