UV Index in Maripasoula, French Guiana

Last updated: July 2, 2025

In Maripasoula, French Guiana, being aware of the UV Index is crucial for protecting your skin and overall health. With a tropical climate typical of the region, the sun’s rays can be particularly intense, reaching a maximum UV Index of 12 during midday hours. Understanding these UV levels is vital in preventing sunburn and long-term skin damage, especially given that exposure risks peak between 10:00 AM and 2:00 PM. By staying informed about the UV Index, residents and visitors alike can take proactive measures to enjoy the sun safely while safeguarding their skin health.

Hourly UV Index in Maripasoula

The UV Index data for the day reveals a dramatic rise in sun exposure as the hours progress. Starting at a gentle 1 at 07:00, it swiftly climbs to 2 by 08:00. By 09:00, the index reaches a moderate 4, but it’s from 10:00 onwards that the sun’s strength truly shines, peaking at an intense 12 during the noon hours of 12:00 and 13:00. This memorable midday height signifies the critical time for protection against harmful UV rays. The afternoon sees a slight drop, with values decreasing to 11 at 14:00 and then tapering down to 7 at 15:00. As the sun begins its descent, the UVI returns to safer levels, falling to 4 by 16:00, and dwindling to 1 at 18:00 before settling at 0 by 19:00. As such, it’s crucial to stay vigilant and protect your skin during peak UV hours!

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	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 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 Maripasoula

The UV Index exhibits extremely high levels throughout the year, peaking at 16 in March and April. The highest risk months for UV exposure are from January to May, where the index remains consistently at 14-16, leading to a burn time of only 10 minutes. As summer approaches, the index slightly declines to 12 in June and July, maintaining a high-risk status. Visitors and residents are strongly advised to take necessary precautions during these months, including wearing broad-spectrum sunscreen, protective clothing, and seeking shade to minimize the risk of skin damage. Maintain awareness of the UV Index even during other months, as levels remain consistently high at 12-13 from August through December.

Monthly Maximum UV Index for Maripasoula, French Guiana

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Maripasoula. 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 Maripasoula, 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 Maripasoula UV Index with Other French Guiana Cities

The table above highlights how UV exposure in Maripasoula 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.

Maripasoula'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
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
Maripasoula	14	15	16	16	14	12	12	13	13	13	13	12