Discover French Guiana
Very few tourists make it to this small South American country. It's a shame, because nature in French Guiana is still pure and unspoiled.
April in Cayenne brings very high temperatures, with daytime highs of 30°C (86°F) and nights around 24°C (75°F). It's part of the rainy season, with 275 mm (11 in) of rainfall on average, so an umbrella or poncho is a good idea.
April in Cayenne has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Cayenne - and find the best time to visit.
48-year average (1976-2025)
Based on our historical records, temperatures in Cayenne typically stay consistent throughout April, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
48-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Cayenne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 34 years of weather observations in Cayenne between 1992 and 2026, these are the recorded extremes.
Find out more about the weather in French Guiana and which places have the best travel conditions in this month. See all of French Guiana in April →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in April. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Bring sunglasses since you'll have some sunny periods throughout the month
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cayenne climate overview or explore weather in French Guiana.
Where to go in April - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Discover French Guiana
Very few tourists make it to this small South American country. It's a shame, because nature in French Guiana is still pure and unspoiled.
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