Discover French Guiana
Very few tourists make it to this small South American country. It's a shame, because nature in French Guiana is still pure and unspoiled.
Cayenne Weather in September
September in Cayenne brings very high temperatures, with daytime highs of 32°C (90°F) and nights around 24°C (75°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
Rainfall in Cayenne in September
With the driest weather of the year, this month is ideal for outdoor fun. This month experiences about 4 days of rain according to historical data, averaging 50 mm (2 in). Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Cayenne in September
If you're visiting Cayenne in September, expect highs of 32°C (90°F) and overnight lows around 24°C (75°F). For most visitors, the main thing to prepare for is the heat during the day. Nights stay warm at around 24°C (75°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Cayenne in September
Enjoy a sunny month with about 255 hours of sunshine, the clear skies make Cayenne even more beautiful.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Cayenne Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
32°C (90°F)
Chance of Rain
15%
Precipitation
50 mm (2 in)
Rainy days
4 days
Sunshine
255 hours
Percentage Sunshine
Cayenne Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cayenne - and find the best time to visit.
Best Places in French Guiana in September
Find out more about the weather in French Guiana and which places have the best travel conditions in this month. See all of French Guiana in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Cayenne in September
Warm but pleasant conditions in Cayenne in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Cayenne in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping8/10 -
Outdoor sports8/10
Cayenne 3-Day Forecast
More climate data for Cayenne
See the full Cayenne climate overview or explore weather in French Guiana.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
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