Cayenne weather in May
May in Cayenne: warm, soaked, with clean air — a gamble, with 30 rainy days.
#12 of 12 months in Cayenne · #855 of 897 destinations to visit in May · comfort 55/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cayenne in May
No notes yet. Open Cayenne on the map to add the first one.
Cayenne climate normals — May
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Rainfall | 564 mm / 22.2 in | ⛈ soaked |
| Rainy days | 30 days | |
| Humidity | 89% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 7.8 h/day | |
| Daylight | 12.3 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Cayenne?
Loading map…
Cayenne in May — FAQ
- Is May a good time to visit Cayenne?
- May in Cayenne: warm, soaked, with clean air — a gamble, with 30 rainy days. It ranks #12 of 12 months for Cayenne on SeasonMap's comfort score (55/100).
- What is the weather like in Cayenne in May?
- In May, Cayenne averages a daily high of 28.2°C and a low of 23.7°C, with about 564.4 mm of rain over roughly 30 rainy days.
- What is the air quality in Cayenne in May?
- Cayenne has a mean US Air Quality Index of about 32 in May.