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The South Atlantic high pressure cell and the equatorial trough control the climate of St Helena. Despite the island's locality within the tropics,
its climate is kept mild and equable by the south-east trade winds.
TODAY'S WEATHER WATCH
Rainfall
The interior of the island gets an average of three to four times more rain than the coastal regions. Rainfall averages for 1995 and 2000 are recorded in the chart below.
The trade winds make the island's weather very changeable with a rainy humid morning often leading into a bright hot sunny afternoon in a matter of hours.
The temperatures in the central areas are, on average, 5°C -6°C lower.
St Helena Island's weather is typical sub-tropical but mild with occasional South-East trade winds influenced by the cool Benguela Current.
Temperature
Temperatures are moderate throughout the year with averages of 20°C - 25°C in summer and 13°C - 19°C in winter.
TODAYS SATELLITE WATCH South Atlantic Satellite Watch: Click on the image for the latest satellite image.
Visitors are advised to bring a small range of clothes and accessories, such as a rain jacket and umbrella, when visiting our island.
Enquiries or questions about visiting the Island of St Helena can be addressed to the
St Helena Tourist Office. Remember to include your full name and return contact details.
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The trade winds make the island's weather very changeable with a rainy humid morning often leading into a bright hot sunny afternoon in a matter of hours.
