Weather in May
Sea temperature
In Saint Helena Bay, South Africa, the average seawater temperature in May is 15.3°C (59.5°F).Note: Swimming in 15.3°C (59.5°F) is not an enjoyable experience for most. Breathing becomes progressively more challenging as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
In May, the average length of the day is 10h and 26min.On the first day of the month, sunrise is at 07:21 and sunset at 18:08. On the last day of May, sunrise is at 07:41 and sunset at 17:49 SAST.
Frequently asked questions
How cold is the water in May in Saint Helena Bay?
In Saint Helena Bay, South Africa, the average seawater temperature in May is 15.3°C (59.5°F). Swimming in 15.3°C (59.5°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
How many hours of daylight does Saint Helena Bay have in May?
The average day length in May in Saint Helena Bay is 10h and 26min.
When are sunrise and sunset in May in Saint Helena Bay?
In May, on the first day of the month, sunrise is at 07:21 and sunset at 18:08. On the last day of the month, in Saint Helena Bay, sunrise is at 07:41 and sunset at 17:49 SAST.
Average sea temperature in May
Saint Helena Bay, South Africa
- Average sea temperature in May: 15.3°C
The best months for swimming (with the highest average sea temperature) are January and March (17.3°C).
The coldest month (with the lowest average sea temperature) is July (14.4°C).
Average daylight in May
Saint Helena Bay, South Africa
- Average daylight in May: 10h and 2min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
Saint Helena Bay, South Africa
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