May weather forecast
Knysna, South Africa

May marks a clear downturn in the weather conditions as it moves into the cooler months. The rainfall is reduced to 39mm (1.54") over nine days, indicating a relative dryness compared to April. The crisp air and cooler weather make this an excellent time for scenic drives through the region, with less crowding on the popular routes. Sightseeing opportunities remain abundant as the local vegetation changes to accommodate the cooler temperatures. With a dip in sea temperatures, beach activities give way to breathtaking views of the peaceful ocean waves, adding to the beauty of Knysna.

Temperature

The initiation of May records an average high-temperature of a still moderately hot 23°C (73.4°F), displaying a near consistency with the previous month. Despite high daytime temperatures, the average temperature lowers to a fresh 10°C (50°F) during May nights.

Rainfall

In Knysna, during May, the rain falls for 9 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, there are 145 rainfall days, and 719mm (28.31") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Knysna, South Africa, is 17.5°C (63.5°F).
Note: Most people find it challenging to enjoy swimming in water that is 17.5°C (63.5°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.

Daylight

In May, the average length of the day in Knysna is 10h and 22min.
On the first day of the month, sunrise is at 07:03 and sunset at 17:46. On the last day of May, in Knysna, sunrise is at 07:24 and sunset at 17:26 SAST.

Sunshine

The months with the least sunshine are May and June, with an average of 7h of sunshine.

UV index

May through July, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 3 in May, converts into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.