Cayenne weather in September 2021

Get the latest coronavirus (COVID-19) updates for French Guiana with current travel advice, statistics and online resources.

  • 32°C maximum daytime temperature in September in Cayenne32
    32°C max day temperature
  • 8 hours of sunshine per day
  • 4 days with some rainfall in September in Cayenne4
    4 days with some rainfall
  • 23°C minimum night-time temperature in September in Cayenne23
    23°C min night temperature
  • 12 hours of daylight per day in September in Cayenne12
    12 hours of daylight per day
  • Very high heat & humidity in September in CayenneVH
    Very High heat & humidity
  • 40 mm monthly rainfall in September in Cayenne40
    40 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Cayenne11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Cayenne28
    28°C sea temperature

Recommended for French Guiana

  • Top deals & discounts
  • Cayenne weather overview
  • Cayenne climate averages by month
  • More destinations
  • Best time to go to Cayenne
  • Cayenne 5-day weather forecast

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

The September weather guide for Cayenne, French Guiana 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.

Holiday Autos discount code: 10% off car hire worldwide

  • Save EXTRA 10% on cheap car hire worldwide
  • With this exclusive Holiday Autos discount code
  • Travel before 31st December 2020 (inclusive)
Show discount codeShow discount code ******vel
Redeem Holiday Autos discount code >>

Expires at 23:59 on Thursday 31st Dec 2020 · View all Holiday Autos offers

How hot is it in Cayenne in September?

Daytime temperatures usually reach 32°C in Cayenne in September with very high heat and humidity, falling to 23°C 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 28°C.

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 40mm.

Cayenne sunrise & sunset times for September 2021

Browse the sunrise & sunset times for Cayenne in September 2021. Select a month to view Cayenne sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 06:23 18:35
Wednesday, 15th September 2021 06:20 18:29
Thursday, 30th September 2021 06:17 18:21

Travel Up: Current hotel special offers & deals

  • Find hotel deals & special offers for popular destinations
  • Filter hotel deals by price, board basis, star rating & more
  • Choose from over 400,000 hotels worldwide
Go to Travel Up deal >>

View all Travel Up offers

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More French Guiana destinations

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.