The climate of Saint Helena, Ascension and Tristan da Cunha (United
Saint Helena, Ascension and Tristan da Cunha are located in the south
Atlantic Ocean far from the coast of Africa. These three islands and
the smaller islands of Tristan da Cunha are British overseas
territories. The capital of these islands is Jamestown which is
located on the islands of Saint Helena. The smaller islands that are
part of Tristan da Cunha are: Gough, Inaccessible and the Nightingale
Islands which are all uninhabited. Saint Helena is known for the fact
that Napoleon Bonaparte spent his last days here in exile. The islands
have a total population of about 6,000, most of which live on Saint
Helena. Because the islands have no airport the inhabitants solely
depend on ships. The islands used to be an important stop over for
navigation to and from South East Asia. The long journey was
interrupted by a stopover on these islands to stock up supplies and
fresh drinking water. In the 17th century Saint Helena was claimed by
the Dutch for several years.
All of the islands have a maritime climate varying
from a tropical to a moderate maritime climate. the climate on most of
the islands is influenced by the trade wind. Temperatures on Saint
Helena are much higher than on Tristan da Cunha on average. Trade
winds seem to be colder here as well. Precipitation figures are not
far apart. Ascension is situated more to the north than the other
islands; trade winds have a smaller influence here. Precipitation
figures are much lower here as well. It is even dry on Ascension.
The figures below are based on long term weather and climate
records. They are an average for Saint Helena. Because of the large
distance the figures do not apply to Ascension and Tristan da Cunha.
More climate information
Climate tables are useful but they don’t give an overall picture of
the climate and possible weather conditions during a period of time.
How high the chances are of hot or cold weather or hurricanes can
often not be found in these tables. This is why we offer extra climate
information per month. The figures below are for Saint Helena. Because
of the large distance the figures do not apply to Ascension and
Tristan da Cunha.
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.