French Guiana weather

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

  • Top deals & discounts
  • French Guiana climate averages by month
  • More destinations
  • Best time to go to French Guiana
  • French Guiana 5-day weather forecast
  • French Guiana weather today - current conditions (last 24-hours)

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

The weather guide for French Guiana shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

Recommended for French Guiana

  • Claim for delayed & cancelled flights + missed connections
  • Receive up to 600 Euros compensation
  • Enter flight number or from/to airports + date

Which is the hottest month in French Guiana?

The hottest time of year in Cayenne, French Guiana is normally October. Expect maximum daytime temperatures to reach 32°C with very high heat and humidity.

Which month has the most rain in French Guiana?

In terms of rainfall, May is usually the wettest month in Cayenne, French Guiana with 544mm on average. There are normally 26 days in May with some rain.

When is it sunniest in French Guiana?

The sunniest time of year in Cayenne, French Guiana is normally October with bright sunshine on average for 70% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in French Guiana?

The sea is usually at its warmest in Cayenne, French Guiana in August when the water temperature reaches 28°C.

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

Back to top

Compare French Guiana weather with the USA

Below the French Guiana weather chart shows average maximum daytime temperature for French Guiana (Cayenne) and the USA (Washington).

Maximum daytime temperature (°C)

French Guiana (Cayenne)
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

Compare more French Guiana weather >>

  • Save on holidays in summer 2020 with top deals from TUI
  • Book holidays to the Greece, Cyprus, Turkey & more
  • FREE amends & overseas medical assistance with COVID cover

TUITUI deal finder

Back to top

French Guiana weather overview

French Guiana is a small country in South America bordering Brazil and Suriname, with an Atlantic coastline at its northern edge. It consists largely of lowland plains with small hills to the south, and has an equatorial rainforest interior. Expect a climate of Turkish bath-style sultriness throughout the year, though conditions are at their most steamy during the rainy season, which stretches from December to mid-July.

Best time to visit is August and November, when conditions are driest and sunniest, and humidity not too oppressive.

What to pack for French Guiana weather

Take very light cotton clothing and reliable waterproofs if you are visiting in the long wet season. Add a wrap for cooler evenings.

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.