Cayenne weather in March
March in Cayenne: warm, soaked, with clean air — fine if you can take 21 rainy days.
#4 of 12 months in Cayenne · #743 of 897 destinations to visit in March · comfort 66/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cayenne in March
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Cayenne climate normals — March
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Rainfall | 215 mm / 8.5 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 12.1 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cayenne in March — FAQ
- Is March a good time to visit Cayenne?
- March in Cayenne: warm, soaked, with clean air — fine if you can take 21 rainy days. It ranks #4 of 12 months for Cayenne on SeasonMap's comfort score (66/100).
- What is the weather like in Cayenne in March?
- In March, Cayenne averages a daily high of 28.1°C and a low of 23.8°C, with about 214.8 mm of rain over roughly 20.8 rainy days.
- What is the air quality in Cayenne in March?
- Cayenne has a mean US Air Quality Index of about 42 in March.