August weather forecast
Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha

August upholds the cool trend established by July, with the weather remaining relatively stable. Although this may not be the sunniest of months, it offers an overall comfortable climate for both outdoor activities and indoor relaxation. The month marks a slight drop in the average sea temperature to 21°C (69.8°F), while abating rainfall patterns become more noticeable. Less frequent showers provide a break from the wet weather, allowing for more opportunities to enjoy the outdoors. Consequently, this month has a distinctly cooler and calmer demeanor compared to the vibrant previous months.

Temperature

August brings the lowest temperatures in Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha, with an average high of 17°C (62.6°F) and an average low of 14°C (57.2°F).

Rainfall

In Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha, in August, during 15 rainfall days, 68mm (2.68") of precipitation is typically accumulated. In Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha, during the entire year, the rain falls for 170 days and collects up to 748mm (29.45") of precipitation.

Sea temperature

In Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha, the average seawater temperature in August is 21°C (69.8°F).
Note: Swimming in 21°C (69.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In August, the average length of the day in Saint Helena Island is 11h and 36min.
On the first day of the month, sunrise is at 06:46 and sunset at 18:11. On the last day of August, in Saint Helena Island, sunrise is at 06:29 and sunset at 18:16 GMT.

Sunshine

In Saint Helena Island, the average sunshine in August is 15h.

UV index

In August, the average daily maximum UV index in Saint Helena Island is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: During August, 9 as the daily maximum UV index converts into the following advice:
Always be careful, as unprotected skin and eyes might burn in no time. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.