The hottest month in Cape Town is February when the average maximum temperature is 27°, average temperature is 22° and average minimum temperature is 17°.
The coolest month in Cape Town is July when the average maximum temperature is 18°, average temperature is 13° and average minimum temperature is 8°.
The longest days in Cape Town are in December, with an average of 14.4 hours of daylight per day. June has the shortest days with an average of 9.9 hours of daylight per day.
The sunniest days in Cape Town are in January which has the most hours of sunshine per day with an average of 10.3 hours of sunshine per day, making it a very sunny and pleasant month with long bright days. June has the least sunshine with an average of 5.5 hours of sunshine per day, making it a sunny month that is overcast at times.
The ultraviolet index is the highest in January when it reaches 14 and lowest in June when it reaches 2.9.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in Cape Town are found in February when they peak at 20° and lowest in September when they dip to 15°.
The sea is best for swimming between December and April when the temperature is above 17° which is cool for swimming, shorty wetsuit may help you extend your time in the water.
The wettest month in Cape Town is June with 23.5cm of rain and the most days of rain with 13.7 days with some rain, a slightly wet time to visit the beach.
The driest month in Cape Town is December with 0.6cm of rain and the least days of rain with 4.5 days with some rain, a very dry time to visit the beach.
The most humid month in Cape Town is February with a dew point (an indicator of humidity) of 18° which is OK for most but slightly uncomfortable for some.
The least humid month in Cape Town is July with a dew point of 11° which is very comfortable.
The most windy month in Cape Town is December when the average maximum windspeed is 37kmh and the average wind speed is 21kmh.
The least windy month in Cape Town is July when the average maximum windspeed is 25kmh and the average wind speed is 13kmh.