Cayenne weather in July
July in Cayenne: hot, soaked, with clean air — a gamble, with 28 rainy days.
#6 of 12 months in Cayenne · #739 of 897 destinations to visit in July · comfort 61/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cayenne in July
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Cayenne climate normals — July
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Rainfall | 290 mm / 11.4 in | ⛈ soaked |
| Rainy days | 28 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 9.7 h/day | |
| Daylight | 12.4 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cayenne in July — FAQ
- Is July a good time to visit Cayenne?
- July in Cayenne: hot, soaked, with clean air — a gamble, with 28 rainy days. It ranks #6 of 12 months for Cayenne on SeasonMap's comfort score (61/100).
- What is the weather like in Cayenne in July?
- In July, Cayenne averages a daily high of 29.1°C and a low of 23.4°C, with about 290.1 mm of rain over roughly 28 rainy days.
- What is the air quality in Cayenne in July?
- Cayenne has a mean US Air Quality Index of about 25 in July.