UV Index in Athi River, Kenya

Last updated: July 2, 2025

Understanding the UV Index in Athi River, Kenya is crucial for protecting your skin and overall health. High UV levels can lead to sunburns, premature aging, and increase the risk of skin cancer, making it essential for residents and visitors alike to stay informed. Athi River's Cfb climate brings warm temperatures year-round, with peak UV readings soaring to 12 during midday hours, posing significant exposure risks. By regularly checking the UV Index, you can take the necessary precautions to enjoy the sun safely, ensuring a healthier outdoor experience in this vibrant location.

Hourly UV Index in Athi River

As the day unfolds, the UV Index reveals a dynamic dance of sunlight intensity. Starting off gently at 1 during the early hours, the index climbs steadily, reaching a manageable 4 by 9 AM. The ascent peaks drastically at 12 between 12 PM and 1 PM, signaling the sun's strength at its zenith. A gradual decline begins post-lunch, with the index dropping to 7 by 3 PM, then continuing its descent to 2 by 5 PM. As daylight wanes, the UV Index returns to safe levels, resting at 1 by 6 PM and finally tapering off to 0 by 7 PM. This hourly progression highlights the importance of sun safety, particularly during midday when the UV rays are at their most potent. Remember, protection during high UV Index hours is crucial!

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
07:001low45 min
08:001low45 min
09:004moderate30 min
10:007high25 min
11:0010very high15 min
12:0012extreme10 min
13:0012extreme10 min
14:0010very high15 min
15:007high25 min
16:004moderate30 min
17:002low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Athi River

Throughout the year, the UV Index remains notably high, consistently categorized as extreme, with optimal exposure times capped at just 10 minutes across all months. January through April presents the peak period, with UV Index values ranging from 15 to 16, marking it as a critical time for sun exposure. While May through August sees a slight dip in UV Index, values remain close to 12-14, continuing to pose significant risks for sunburn. September through December exhibits a return to higher UV readings, particularly in September with an index of 15. It is crucial for both visitors and residents to take precautionary measures during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during the peak sun hours to mitigate the risk of UV exposure.

Monthly Maximum UV Index for Athi River, Kenya

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Athi River. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec151616161412121315141314
Data source: Statistical UV Index data for Athi River, 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 Athi River UV Index with Other Kenya Cities

The table above highlights how UV exposure in Athi River compares to other major locations across Kenya. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Athi River's solar exposure compared to other cities in Kenya. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mombasa UVI141415141311111213131312
Kikuyu UVI151616161311111314141313
Ruiru UVI151616161311111314141313
Nairobi UVI151616161311111314141313
Athi River151616161412121315141314
Nakuru UVI161717171412131415151414