UV Index in Grootfontein, Namibia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of Grootfontein, Namibia, where the sun can be both a lifegiver and a threat. With its BSh climate, this region experiences high UV levels, peaking around midday when the index can soar to 8, meaning that unprotected skin is at significant risk of sunburn within minutes. Awareness of UV levels not only helps in skin health and sunburn prevention but also empowers the community to enjoy the outdoors safely. As you navigate the sunny days in Grootfontein, staying informed about the UV Index can make all the difference in protecting yourself from harmful rays.

Hourly UV Index in Grootfontein

As the day unfolds, the UV Index paints a vivid picture of sun exposure. At 07:00, the sun is just waking up with a UV Index of 0, then steadily rises to 1 by 08:00. By 09:00, it nudges up to 2, before hitting a moderate 4 at 10:00. The intensity peaks at 12:00 and 13:00, reaching a notable 8, indicating a time when protective measures are crucial. As the afternoon rolls on, the index begins to descend, dropping to 7 at 14:00, then falling further to 5 by 15:00. The sun's strength wanes into the evening, landing at 2 by 16:00, and tapering off to 1 by 17:00 and 18:00. Finally, by 19:00, the index returns to 0, as the sun sets, marking the end of the high UV exposure day. Remember to protect your skin during those peak 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.
TimeUVICategoryTime to Burn
07:000low45 min
08:001low45 min
09:002low45 min
10:004moderate30 min
11:006high25 min
12:008very high15 min
13:008very high15 min
14:007high25 min
15:005moderate30 min
16:002low45 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Grootfontein

Throughout the year, UV Index levels reveal significant seasonal changes, with high-risk months primarily occurring from January to April and again in September to November, where the index remains at extreme or very high levels. Specifically, during the first four months, the UV Index consistently reaches 17 to 14, and in September, it spikes back to 13. By contrast, the summer months of May through August present a slight decrease, with indices ranging from 9 to 10. Despite this dip, precautions remain essential, especially as high burn times of 10 to 15 minutes are necessary throughout the year. Visitors and residents are strongly advised to wear protective clothing, apply sunscreen regularly, and seek shade, particularly during peak hours, to mitigate the risks of excessive sun exposure.

Monthly Maximum UV Index for Grootfontein, Namibia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Grootfontein. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec171714129881013131516
Data source: Statistical UV Index data for Grootfontein, 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 Grootfontein UV Index with Other Namibia Cities

The table above highlights how UV exposure in Grootfontein 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.
Grootfontein's solar exposure compared to other cities in Namibia. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Swakopmund UVI14141211866811121314
Walvis Bay UVI14141211866811121314
Windhoek UVI161714129771012141516
Rundu UVI1717151310881012121515
Grootfontein171714139881013131516
Oshakati UVI1717161310991113141516