Cayenne weather in September 2024

Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cayenne in September. Check more long-term weather averages for Cayenne in September before you book your next holiday to French Guiana in 2024/2025.

90
90°F max day temperature
8
8 hours of sunshine per day
4
4 days with some rainfall
73
73°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
1.6
1.6 inches of monthly rainfall
11
11+ (Extreme) UV index
82
82°F sea temperature

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The September weather guide for French Guiana, represented by Cayenne, (Cayenne) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

How hot is it in Cayenne in September?

Daytime temperatures usually reach 90°F in Cayenne in September with very high heat and humidity, falling to 73°F at night.

How sunny is it in Cayenne in September?

There are normally 8 hours of bright sunshine each day in Cayenne in September - that's 68% of daylight hours.

How warm is the sea around Cayenne in September?

The average sea temperature around Cayenne in September is 82°F.

Does it rain in Cayenne in September?

There are usually 4 days with some rain in Cayenne in September and the average monthly rainfall is 1.6 inches.

Cayenne September sunrise & sunset times

Browse the sunrise and sunset times for Cayenne in September 2024. Select a month to view Cayenne sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st September 2024	06:23	18:35
Sunday, 15th September 2024	06:20	18:28
Monday, 30th September 2024	06:17	18:21

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French Guiana - quick facts
Time difference	UK -3 hours
Language(s)	French
Currency	Euro
Electricity	C + E plug (230V)
Driving side	Right
Tourist info	Atout France