French Guiana, month by month

1. JanuaryMixedWet; carnival season begins at Epiphany.Coast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 30 °C (86 °F) / 23 °C (73 °F), 20 rain daysCoast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 86 °F (30 °C) / 73 °F (23 °C), 20 rain daysCrowds: Medium · 3 festivals or holidays
2. FebruaryMixedCarnival peak and Mardi Gras parades; rain.Coast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 30 °C (86 °F) / 23 °C (73 °F), 17 rain daysCoast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 86 °F (30 °C) / 73 °F (23 °C), 17 rain daysCrowds: High · 2 festivals or holidays
3. MarchGoodShort dry spell ('petit été').Coast (Cayenne to Saint-Laurent): fine · Interior rainforest: fine · Cayenne: 31 °C (88 °F) / 23 °C (73 °F), 15 rain daysCoast (Cayenne to Saint-Laurent): fine · Interior rainforest: fine · Cayenne: 88 °F (31 °C) / 73 °F (23 °C), 15 rain daysCrowds: Medium · 2 festivals or holidays
4. AprilMixedRains return; turtles start nesting; Easter bouillon d'awara.Coast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 31 °C (88 °F) / 23 °C (73 °F), 17 rain daysCoast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 88 °F (31 °C) / 73 °F (23 °C), 17 rain daysCrowds: Low · 2 festivals or holidays
5. MayMixedWettest weeks; turtles nesting.Coast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 30 °C (86 °F) / 23 °C (73 °F), 22 rain daysCoast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 86 °F (30 °C) / 73 °F (23 °C), 22 rain daysCrowds: Low · 4 festivals or holidays
6. JuneMixedVery wet; turtle nesting peak.Coast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 30 °C (86 °F) / 23 °C (73 °F), 21 rain daysCoast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 86 °F (30 °C) / 73 °F (23 °C), 21 rain daysCrowds: Low · 3 festivals or holidays
7. JulyMixedRain easing; French holidays push fares up.Coast (Cayenne to Saint-Laurent): fine · Interior rainforest: fine · Cayenne: 30 °C (86 °F) / 23 °C (73 °F), 15 rain daysCoast (Cayenne to Saint-Laurent): fine · Interior rainforest: fine · Cayenne: 86 °F (30 °C) / 73 °F (23 °C), 15 rain daysCrowds: Medium · 2 festivals or holidays
8. AugustGreatDry season starts; hatchlings on beaches.Coast (Cayenne to Saint-Laurent): best weather · Interior rainforest: best weather · Cayenne: 31 °C (88 °F) / 23 °C (73 °F), 10 rain daysCoast (Cayenne to Saint-Laurent): best weather · Interior rainforest: best weather · Cayenne: 88 °F (31 °C) / 73 °F (23 °C), 10 rain daysCrowds: Medium · 4 festivals or holidays
9. SeptemberGreatDry and sunny; best month overall.Coast (Cayenne to Saint-Laurent): best weather · Interior rainforest: best weather · Cayenne: 32 °C (90 °F) / 23 °C (73 °F), 6 rain daysCoast (Cayenne to Saint-Laurent): best weather · Interior rainforest: best weather · Cayenne: 90 °F (32 °C) / 73 °F (23 °C), 6 rain daysCrowds: Low · 1 festival or holiday
10. OctoberGreatDry; good for river trips.Coast (Cayenne to Saint-Laurent): best weather · Interior rainforest: best weather · Cayenne: 32 °C (90 °F) / 23 °C (73 °F), 6 rain daysCoast (Cayenne to Saint-Laurent): best weather · Interior rainforest: best weather · Cayenne: 90 °F (32 °C) / 73 °F (23 °C), 6 rain daysCrowds: Low · 1 festival or holiday
11. NovemberGreatDry; rivers low.Coast (Cayenne to Saint-Laurent): best weather · Interior rainforest: fine · Cayenne: 32 °C (90 °F) / 23 °C (73 °F), 9 rain daysCoast (Cayenne to Saint-Laurent): best weather · Interior rainforest: fine · Cayenne: 90 °F (32 °C) / 73 °F (23 °C), 9 rain daysCrowds: Low · 3 festivals or holidays
12. DecemberMixedRains begin; Christmas flights full.Coast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 31 °C (88 °F) / 23 °C (73 °F), 15 rain daysCoast (Cayenne to Saint-Laurent): rainy · Interior rainforest: rainy · Cayenne: 88 °F (31 °C) / 73 °F (23 °C), 15 rain daysCrowds: Medium · 1 festival or holiday

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

How each climate zone rates each month.