UV Index in Rosso, Mauritania

Last updated: May 3, 2025

In Rosso, Mauritania, awareness of the UV Index is crucial for safeguarding your skin and overall health. The UV Index provides essential information about the level of ultraviolet radiation on a given day, helping residents and visitors alike to make informed decisions about sun exposure and sunburn prevention. Typically basking under a BWh climate, Rosso experiences high UV levels, particularly during midday when values peak at 12 to 13—an indicator of severe risk. Understanding these fluctuations allows individuals to take proactive measures against harmful radiation, ensuring a healthier and more enjoyable time in the sun.

Hourly UV Index in Rosso

From 7:00 AM to 8:00 AM, the UV Index begins its climb, starting at a mild 1 and reaching 2. The real intensity kicks in by 9:00 AM, as it jumps to 4, signaling a need for sun protection. The peak arrives at 12:00 PM, where the UV Index reaches its zenith at a sizzling 12. For those outdoors at 1:00 PM, be especially cautious as it hits a scorching 13—the highest of the day. As the sun begins its descent, the index gradually decreases, settling at 9 by 3:00 PM, before tapering off to 3 at 5:00 PM, and finally sinking back to 1 from 6:00 PM onward. This hourly breakdown underscores the importance of being sun-smart, especially during those midday 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	6	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Rosso

Throughout the year, the UV Index experiences significant fluctuations, with the most hazardous months falling between March and October, where the index often reaches extreme levels of 12 to 14. March through August sees the peak UV Index at 13, while September is even higher at 14. During these months, the recommended burn time can be as short as 10 minutes, indicating a critical need for sun protection. Consequently, visitors and residents should take extensive precautions during these high-risk months by using sunscreen, wearing protective clothing, and limiting sun exposure, especially during midday hours. In contrast, the winter months of December and January have lower UV levels, with burn times extending to 15 minutes, but sun safety should still be a priority year-round.

Monthly Maximum UV Index for Rosso, Mauritania

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

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

Rosso's solar exposure compared to other cities in Mauritania. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Nouadhibou UVI	7	9	11	13	13	12	10	11	12	10	8	7
Nouakchott UVI	8	9	12	13	13	13	12	12	14	11	9	8
Kaedi UVI	9	9	12	12	12	13	13	14	13	11	10	8
Nema UVI	9	11	12	14	13	12	12	13	12	11	10	9
Rosso	9	10	12	13	13	13	13	13	14	12	10	8