Grabouw monthly weather averages

Average daytime temperature

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

Grabouw average temperature chart (Celsius) Grabouw average temperature chart (Fahrenheit)
Average monthly temperatures in Grabouw (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.6 24.9 23.4 20.8 17.5 15.5 14.9 15.1 16.7 18.9 21.3 23.2
°F 76.3 76.7 74.1 69.4 63.4 60 58.9 59.2 62 66 70.4 73.8

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.

Grabouw monthly rainfall chart (mm) Grabouw monthly rainfall chart (inches)
Average monthly rainfall in Grabouw (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 38 31 44 69 120 153 144 160 89 66 48 45
inches 1.5 1.2 1.7 2.7 4.7 6 5.7 6.3 3.5 2.6 1.9 1.8
Rainy days 5 5 6 9 11 12 11 13 11 9 7 7

Average annual rainfall in Grabouw: 990.7mm (390 inches)

Average daily sunshine

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

Grabouw average daily sunshine chart
Average daily sunshine Grabouw
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 11.4 10.5 9.4 7.7 6.5 6.1 6.7 7 7.7 8.9 10.2 11.2

Day / night temperatures

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

Grabouw average minimum / maximum temperatures (Celsius) Grabouw average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Grabouw (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 12.7 12.9 11.7 10 7.9 6.7 5.9 6.1 6.9 8.3 10.2 11.7
Max °C 24.9 25.2 23.7 21.1 17.7 15.8 15.2 15.4 16.9 19.2 21.6 23.5
Min °F 54.9 55.1 53.1 49.9 46.2 44 42.5 42.9 44.4 46.9 50.4 53.1
Max °F 65.8 66.2 63.9 59.9 55 52.2 50.9 51.3 53.4 56.7 60.6 63.7

Sea temperature

The graph below shows the average sea temperature.

Grabouw average sea temperature chart (Celsius) Grabouw average sea temperature chart (Fahrenheit)
Average sea temperature around Grabouw in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.3 20.5 19.6 18.1 16.9 16 15.5 15.4 15.7 16.4 17.7 19.4
°F 68.6 68.8 67.3 64.5 62.3 60.8 59.8 59.7 60.2 61.5 63.8 66.8

Wind speed

The graph below shows the average wind speed.

Grabouw average winspeed by month (km/h) Grabouw average winspeed by month (mph)
Average wind speed in Grabouw (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 19 17 15 14 14 15 16 17 19 21 21
mph 13 12 11 9 9 9 9 10 11 12 13 13

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.

Grabouw relative humidity averages
Average relative humidity in Grabouw
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
67% 67% 68% 70% 72% 73% 72% 72% 70% 68% 67% 67%

Other monthly averages

UV index Best time to go?

Grabouw weather stats

Grabouw weather statistics
Hottest month: February 24.9°C 76.8°F
Driest month: February 31mm 1.2ins
Sunniest month: January 11.4hrs
Coldest month: July 14.9°C 58.8°F
Wettest month: August 160mm 6.3ins
Warmest sea: February 20.5°C 68.9°F
Map showing location of Grabouw (-34.15152, 19.01509) Grabouw map pin © Google

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