Best Time to Visit French Guiana
French Guiana is at its sunniest and driest in September.
The best time to visit French Guiana for sunny, dry weather is September — 1 month of the year match our sunny profiles at a country-wide average. The drier half of the year covers February–March and July–November, while the wetter half runs through April–June and December–January. Country-wide monthly temperatures range from 26°C / 78.8°F in January to 28°C / 82.4°F in September, and monthly rainfall from 40 mm / 1.6 in (September) to 550 mm / 21.7 in (May). French Guiana's climate is broadly tropical. These are national area-weighted averages from long-term climate normals — regional variation within French Guiana can be substantial, especially for large or geographically diverse countries. Below, every month is classified against our five weather profiles so you can match your travel window to your preferred weather.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| September | 28°C82.4°F | 40 mm1.6″ | Sunny & Hot |
Frequently asked questions
When is the best time to visit French Guiana?
The best time to visit French Guiana for sunny, dry weather is September. The warmest month is September (28°C / 82.4°F country-wide average) and the driest is September (about 40 mm / 1.6 in). These months combine warmth with low rainfall based on long-term climate normals.
When is the rainy season in French Guiana?
The rainy season in French Guiana runs through April–June and December–January, when monthly rainfall exceeds the national annual median of about 320 mm / 12.6 in. The wettest single month is May, averaging 550 mm / 21.7 in.
What is the dry season in French Guiana?
The drier half of the year in French Guiana covers February–March and July–November, when monthly rainfall stays at or below the annual median of about 320 mm / 12.6 in. The driest single month is September with about 40 mm / 1.6 in.
What months should I avoid visiting French Guiana?
The least comfortable months for travel in French Guiana — based on our climate data — are January, February, March, April, May, June, July, December. These are French Guiana's wettest or coolest months. Rainfall peaks at 550 mm / 21.7 in in May, and temperatures bottom out at 26°C / 78.8°F in January.
Is there a shoulder season in French Guiana?
Shoulder-season months in French Guiana — moderate weather, lower rainfall than the wet season — include January, February, March, June, July, August, October, November, December. These are typically the quietest and cheapest months for travel, and often deliver decent weather without the peak-season crowd.