UV Index in Mana, French Guiana

Last updated: May 3, 2025

Understanding the UV Index is essential for residents and visitors in Mana, French Guiana, where the tropical climate brings both beauty and challenges. Being aware of UV levels is crucial for preventing sunburn and promoting long-term skin health. With peak UV exposure reaching a high of 14 around midday, knowing when to seek shade or apply sunscreen can make a significant difference. In Mana's warm, humid conditions, it's vital to stay informed about UV risks to enjoy the outdoors safely and comfortably.

Hourly UV Index in Mana

The UV Index data unfolds a fascinating narrative of sun intensity throughout the day. Starting at a low of 1 at 07:00, the sun gradually awakens, with the index climbing to 2 by 08:00. A noticeable surge occurs between 09:00 and 12:00, where the UV Index rockets to a peak of 14, marking the sun's most potent hours. As the afternoon progresses, from 13:00 to 14:00, the index stabilizes at this zenith of 14, urging sun-seekers to take precautions. Thereafter, a gentle decline commences; the levels drop to 8 by 15:00 and continue to wane, reaching 1 by 18:00 and finally plummeting to 0 by 19:00. This rhythmic rise and fall of sunlight intensity clearly emphasizes the importance of staying sun-safe during those high UV periods!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	14	extreme	10 min
14:00	12	extreme	10 min
15:00	8	very high	15 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Mana

Throughout the year, the UV Index remains exceptionally high in this region, peaking at 16 during both March and April, categorizing these months as high-risk for UV exposure. The extreme exposure category applies from January through May, with consistent burn times of just 10 minutes, indicating that prolonged sun exposure can lead to severe skin damage. While the UV Index slightly decreases during the summer months, it remains at a concerning level, particularly during February to May. Visitors and residents are strongly advised to take protective measures by wearing sunscreen, long sleeves, and UV-blocking sunglasses, especially during these high-risk months to minimize the risk of skin damage. Regular checks of the UV Index are recommended to stay informed and safe.

Monthly Maximum UV Index for Mana, French Guiana

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Mana. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Mana, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Mana UV Index with Other French Guiana Cities

The table above highlights how UV exposure in Mana compares to other major locations across French Guiana. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Mana's solar exposure compared to other cities in French Guiana. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Matoury UVI	13	14	16	16	14	13	12	13	13	13	13	12
Mana	13	14	16	16	14	13	12	13	13	13	13	11
Remire-Montjoly UVI	13	14	16	16	14	13	12	13	13	13	13	12
Cayenne UVI	13	14	16	16	14	13	12	13	13	13	13	12
Kourou UVI	13	14	16	16	14	13	12	13	13	13	13	12
Saint-Laurent-du-Maroni UVI	13	14	16	15	14	13	12	13	13	13	13	11