French Guiana in August

Dry season starts; hatchlings on beaches.

No other month rates higher than August for French Guiana in this guide.

• Coast (Cayenne to Saint-Laurent) · Cayenne, Kourou, Sinnamary, Saint-Laurent, Awala-Yalimapobest weather

  Hot and humid, 23–32 °C (73–90 °F). Dry season mid-August–November; the 'petit été de mars' brings a short drier break in March; heaviest rain April–June.Hot and humid, 73–90 °F (23–32 °C). Dry season mid-August–November; the 'petit été de mars' brings a short drier break in March; heaviest rain April–June.

• Interior rainforest · Saül, Maripasoula, upper Maroni and Oyapockbest weather

  Wetter; river levels drop from September, which makes some rapids harder for canoes by November.

• Cayenne31 °C (88 °F) / 23 °C (73 °F), 10 rain days88 °F (31 °C) / 73 °F (23 °C), 10 rain days

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

  15 Aug

  Closures.

• Assumption Day

  15 August · Cayenne

  Public holiday; many shops close.

• Sea-turtle nesting season check

  Roughly April to August, peak varies by species · Cayenne

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

• Dry season (carême)

  August to November · Cayenne

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

Crowds · French Guiana

Medium

Prices · French Guiana

High

High-price month: see what to book ahead.

Weather, crowds and prices for any two months in French Guiana, side by side.

Nothing unusual for the weather this month.

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Rated best or good this month

• Coast (Cayenne to Saint-Laurent)

  Best weather of the year (Cayenne, Kourou, Sinnamary, Saint-Laurent, Awala-Yalimapo)

• Interior rainforest

  Best weather of the year (Saül, Maripasoula, upper Maroni and Oyapock)

• Cayenne

  Dry season starts; best weather.