UV Index in Mariental, Namibia

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Mariental, Namibia. This knowledge not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. With its semi-arid climate classified as BWh, Mariental experiences high UV exposure, especially during midday hours when the UV Index peaks at 8 between 12:00 PM and 1:00 PM. Being aware of these levels helps you make informed decisions about sun protection, ensuring a safer and more enjoyable outdoor experience in this vibrant region.

Hourly UV Index in Mariental

At dawn, the UV Index starts at a cool 0 at 07:00, indicating minimal sun exposure risk. As the day unfolds, it slowly rises, reaching 1 by 08:00 and climbing to 2 by 09:00. The sun gains strength, peaking at 8 from 12:00 to 13:00—be sure to wear sunscreen during these hours! A gradual decline follows, with the index dropping to 7 at 14:00, then tapering off to 5 by 15:00. By late afternoon, the UV Index decreases further, sinking to 3 at 16:00, before returning to 1 by 17:00 and settling back at 0 as night falls at 19:00. This hourly trend underscores the importance of protecting your skin when the sun is at its zenith!

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Mariental

Throughout the year, the UV Index reflects significant seasonal changes, with particularly high risks from January to April and again in September to November. These months fall into the extreme exposure category, with a consistent burn time of just 10 minutes. February tops the list with a UV Index of 17, highlighting its high risk. From May to August, the UV Index decreases slightly, transitioning to the very high and high categories, where burn times extend to 15-25 minutes. Visitors and residents should exercise utmost caution during high-risk months by seeking shade, wearing protective clothing, and applying sunscreen frequently, especially during midday hours when UV rays are the strongest. Awareness and preparation are key to enjoying the outdoors safely!

Monthly Maximum UV Index for Mariental, Namibia

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

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

Mariental's solar exposure compared to other cities in Namibia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Swakopmund UVI	14	14	12	11	8	6	6	8	11	12	13	14
Walvis Bay UVI	14	14	12	11	8	6	6	8	11	12	13	14
Mariental	16	17	14	11	8	6	7	9	11	14	15	16
Windhoek UVI	16	17	14	12	9	7	7	10	12	14	15	16
Rundu UVI	17	17	15	13	10	8	8	10	12	12	15	15
Oshakati UVI	17	17	16	13	10	9	9	11	13	14	15	16