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UV Index in Cayenne

Day Summary

Today's UV index in Cayenne, French Guiana French Guiana will be up to 12.1, indicating a extreme level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.

Last checked: 2025-06-01

Forecast

Today's tips

UV index at 12.1 in Cayenne means extreme risk: limit outdoor time especially from 10 a.m. to 4 p.m., actively seek shade, wear protective clothing, broad-brimmed hat, apply SPF 30+ sunscreen every 2 hours, and wear UV-blocking sunglasses. Watch for bright surfaces like water and snow increasing UV exposure.

Cayenne's UV Index

Cayenne has a UV index that ranges from moderate to very high, typically peaking around 11 during the equinox months. This means the sun's rays can be very strong for much of the year.

Weather Seasons

UV index

The city experiences an equatorial climate with a wet season from December to July and a drier season from August to November. Temperatures stay warm all year, usually between 24°C and 31°C.

Cayenne's Climate

Compared to neighboring Suriname and Brazil, Cayenne has similar tropical weather but often more rainfall due to its coastal location. The nearby countries also have wet and dry seasons, but the rainfall and humidity levels can vary slightly.

Hourly Trend

See the UV index hour by hour for Cayenne, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.

Disclaimer

* This page's content about the UV index in Cayenne (French Guiana) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.