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The climate of Cayenne (French Guiana)
Cayenne is the capital of French Guiana, a French overseas department situated in the northern part of South America. Cayenne lies on the coast of French Guiana and is named after the river of the same name. The most important source of income of the multi-cultural town of Cayenne is the shrimp-industry. Cayenne has a tropical monsoon climate (type Am according to the Koeppen climate classification) with tropical day temperatures throughout the year (29-32 degrees Centigrade), sultry nights (average temperatures of 23 degrees) and much precipitation, with which there is clearly question of a rainy season (monsoon period) and a dry season. This dry season starts in August and has mostly ended in the second half of November. Totally Cayenne yearly counts on an average ample 3700 millimeters of precipitation, which always falls in the shape of rain. With respectively 261 and 267 hours of sunshine a month September and October are by far the sunniest months, the dullest month of February on an average only counts 116 hours of sunshine.

 

Climate information
The data below is based on registered weather data and applies to Cayenne:

average
 maximum
temperature (įC)

average
minimum

temperature (įC)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (įC)
January 29 23 4 21 27
February 29 23 4 17 27
March 29 23 5 22 27
April 30 24 5 22 28
May 29 23 4 27 28
June 30 23 5 24 28
July 31 23 7 19 28
August 32 22 8 10 28
September 32 23 8 5 28
October 32 23 8 5 28
November 31 23 7 11 28
December 30 23 5 18 27
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate figures are very useful but donít present a general impression of the climate and the eventual weather circumstances within a certain period. The figures donít always reflect the chance of wintry weather, extreme heat or hurricanes. That is why we offer useful extra climate information for each month of the year:
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. ďMore climate infoĒ 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, itís up to the reader to use it to itís benefit.

 

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