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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 August

Great month. Dry season starts; best weather.

Key facts

Verdict
Great
Temperature
31° / 23°
average high / low
Rain days
10
Crowds
Medium
French Guiana overall
Prices
High
French Guiana overall

Verdict

GreatVoykit month rating for Cayenne

Dry season starts; best weather.

Weather in August

Long-term averages
  • CayenneHighs around 31 °C, lows around 23 °C, rain on about 10 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.

Sea-turtle nesting season

Leatherback and green turtles nest on beaches near Cayenne; guided night visits are the responsible way to see it.

Watch: Confirm current-year dates and any beach access restrictions locally.

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.

  • Assumption Day

    15 August · Nationwide

    Public holiday; many shops close.

  • Sea-turtle nesting season check

    Roughly April to August, peak varies by species · Beaches near Cayenne and further along the coast

    Guided night visits become possible; independent access to nesting beaches may be restricted at night — confirm locally.

  • 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
Medium
Prices · French Guiana overall
High

French Guiana overall: Dry season starts; hatchlings on beaches.

High-price month: see what to book ahead.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across French Guiana in August →