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The climate of American Samoa
In Oceania lies American Samoa, an overseas territory of the United
States of America. American Samoa is also described as Eastern Samoa,
which has to do with the fact that the territory, together with
sovereign Samoa, formed one country. Therefore the Independent State
of Samoa is regularly described by Americans as Western Samoa.
American Samoa has a tropical rainforest climate (type Af according to
the Köppen climate classification), of which a fairly high air
humidity, regular rain showers and a rather constant temperature are
the most important factors. The average maximum temperature is around
thirty degrees practically throughout the year. After sunset the
temperature slowly drops to finally end with a lowest 24 hour
temperature of approximately 22 to 25 degrees centigrade.
Rain
With an average of ample three-thousand millimeters of rain American
Samoa can be called fairly wet. American Samoa has a distinct wetter
season lasting from the end of October up to and including May. The
months of June, July, August and September are somewhat drier,
although also in these months there is an obvious chance of
rain-showers . Rain-showers in American Samoa often fall unexpectedly
and can be very heavy. They are also often of very short duration.
Therefore it is advisable to always have an umbrella with you if you
go for a walk, unless you do not mind getting wet.
Hurricanes
American Samoa lies in a zone where heavy tropical storms may occur.
These hurricanes, locally called cyclones, may particularly develop in
the months of January, February, March and April. In the months
limiting the hurricane season, December and May, the chance of this is
already considerably smaller. A cyclone that caused a substantial
amount of damage is Val, which struck already early in the hurricane
season 1991/1992. In the beginning of December Val caused damage in
American Samoa running into an estimated 200 million US dollar.
Climate figures
The figures below are based on registered long-term weather
information and go for the whole of American Samoa.
(locally slight deviations may occur).
More climate information
Climate figures come in handy but do not offer an overall picture of
the climate and the possible weather conditions within a particular
period. You cannot often find in figures how big the chance is of
wintry weather, (extreme) heat or hurricanes. Therefore we monthly
offer useful extra climate information:
Disclaimer
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.
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= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm
