UV Index in Atar, Mauritania

Last updated: June 2, 2025

Understanding the UV Index in Atar, Mauritania, is essential for protecting your skin and overall health in this sun-drenched region. With the harsh BWh climate, residents and visitors alike face significant risks from harmful UV radiation, especially during peak hours when the index soars to 13. Awareness of UV levels can help prevent painful sunburns and long-term skin damage, allowing you to enjoy Atar's beautiful outdoors safely. Whether you're exploring the stunning landscapes or simply going about your day, checking the UV Index is a vital step in ensuring your well-being under the intense sun.

Hourly UV Index in Atar

The UV Index for today reveals a striking pattern of sun intensity throughout the day. Starting at 7:00 AM, the index is a modest 1, but as the sun rises, so does the intensity—by 10:00 AM, it skyrockets to 7. The peak arrives at noon and 1:00 PM with a blistering 13, indicating a crucial time to protect your skin. As the afternoon progresses, from 2:00 PM to 3:00 PM, the index remains high but begins to taper off, dropping to 9 by 3:00 PM. The gentle decline continues into the evening, with UV levels plummeting to 1 by 6:00 PM and holding steady until sunset. Be mindful of the midday sun—it’s when the rays are most potent and protection is essential.

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	11	extreme	10 min
12:00	13	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 Atar

The UV Index exhibits significant seasonal changes, with the highest values occurring from March to October, where it reaches an extreme level of 12-14 and a burn time as short as 10 minutes. The highest risk months are April and May, both showing a peak UV Index of 14, emphasizing the importance of sun protection during this period. In contrast, January and February start at a very high UV Index of 8-9, with slightly longer burn times of 15 minutes. As the year progresses into November and December, the UV Index lowers, with December presenting a high reading of 7 and a burn time of 25 minutes. Visitors and residents are strongly advised to take safety precautions from March to October, including seeking shade, wearing protective clothing, and applying sunscreen frequently, especially during midday hours when the sun's rays are most intense.

Monthly Maximum UV Index for Atar, Mauritania

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

The table above highlights how UV exposure in Atar 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.

Atar'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
Atar	8	9	12	14	13	13	11	13	13	11	9	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 UVI	9	10	12	13	13	13	13	13	14	12	10	8