Koolbaai Weather & Climate: Best Time to Visit

With minimal seasonal shifts, Koolbaai experiences a constant climate year-round. Average daytime temperatures reach a comfortable 30°C (86°F) in August. In February, the coolest month of the year, temperatures drop to a comfortable 27°C (81°F).

At night, temperatures range from around 27°C (81°F) in August to 24°C (75°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Koolbaai receives mid-range precipitation levels, with 917 mm (36 in) annually. Koolbaai can be quite wet during October, receiving approximately 139 mm (5.5 in) of precipitation over 20 rainy days.

In contrast, during the driest month (March), you will experience much drier conditions, with 32 mm (1.3 in) of precipitation spread across 13 rainy days. For more details, please visit our Koolbaai Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Despite minor fluctuations, Koolbaai enjoys a fairly consistent amount of sunshine throughout the year. In August, you can expect approximately 9.5 hours of daily sunshine, while even in September, Koolbaai still receives about 7.7 hours.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The mean water temperature over the year ranges from 26°C (79°F) in January to 29°C (84°F) in September.

Water temperature over the year

The relative humidity is high throughout the year in Koolbaai.

The city experiences its highest humidity in October, reaching 80%. In February, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The average wind speed over the year ranges from 4 m/s (8 knots) to 5 m/s (10 knots). It is lower in October and November and higher in January, February, March, April, May, June, July, August, September and December. What does this mean?

The mean monthly wind speed over the year (meters per second)