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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Cayenne

Cayenne in September

Great month. Dry season.

Key facts

Verdict
Great
Temperature
32° / 23°
average high / low
Rain days
6
Crowds
Low
French Guiana overall
Prices
Medium
French Guiana overall

Verdict

GreatVoykit month rating for Cayenne

Dry season.

Weather in September

Long-term averages
  • CayenneHighs around 32 °C, lows around 23 °C, rain on about 6 days
  • Coast (Cayenne to Saint-Laurent), French Guiana · Cayenne, Kourou, Sinnamary, Saint-Laurent, Awala-Yalimapobest weather

    Hot and humid, 23–32 °C. Dry season mid-August–November; the 'petit été de mars' brings a short drier break in March; heaviest rain April–June.

Dry season season

The most reliable window for walking, the beach and day trips; September–October are typically the driest and hottest.

Watch: Still hot and humid by any temperate-climate standard — this is a dry season, not a cool one.

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Dry season (carême)

    August to November · Citywide

    The most reliable weather window for walking, the beach and day trips to Kourou.

Crowds and prices

Crowds · French Guiana overall
Low
Prices · French Guiana overall
Medium

French Guiana overall: Dry and sunny; best month overall.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen

Build the full packing list for your trip →

Across French Guiana in September →