UV Index in Sirisia, Kenya

Last updated: June 2, 2025

Understanding the UV Index in Sirisia, Kenya, is essential for safeguarding your skin and overall health. With the region's tropical climate and a significant UV exposure risk, knowing the daily UV levels can help you prevent sunburn and long-term skin damage. During peak hours, particularly between 10 AM and 2 PM, the UV Index can soar as high as 11, indicating extreme exposure levels. This awareness empowers residents and visitors to take appropriate precautions, ensuring that enjoying the beautiful Kenyan sun does not come at the expense of skin health.

Hourly UV Index in Sirisia

As the sun rises and warms the day, the UV Index begins at a mild 1 at 07:00 and 08:00, making it safe to venture outdoors without much protection. By 09:00, it jumps to a moderate 3, hinting at the increasing intensity. The real peak arrives between 11:00 and 13:00, where the index soars to an impressive 11, signifying a high risk of harm from unprotected sun exposure. As the afternoon rolls on, the index gradually dips, dropping to 10 at 14:00 and then descending through the late afternoon to 2 by 17:00. The sun sets the scene for a safe evening as the index returns to 1 at 18:00, finally resting at 0 by 19:00. This hourly dance of UV radiation highlights the importance of sun safety 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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Sirisia

The UV Index remains consistently high throughout the year, with extreme levels recorded from January to May, reaching a peak of 16 in March. The high-risk months are from January to April, where the index varies between 14 and 16 and the burn time is just 10 minutes, indicating a serious risk of skin damage without adequate protection. Even as summer approaches, the UV Index decreases slightly in June and July but remains significant, hovering around 11 to 12. Visitors and residents are advised to take precautions year-round: apply broad-spectrum sunscreen, wear protective clothing, and limit sun exposure, especially during midday hours, to mitigate the risks associated with the extreme UV levels.

Monthly Maximum UV Index for Sirisia, Kenya

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

The table above highlights how UV exposure in Sirisia 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.

Sirisia's solar exposure compared to other cities in Kenya. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mombasa UVI	14	14	15	14	13	11	11	12	13	13	13	12
Sirisia	14	15	16	15	13	11	11	12	13	13	12	12
Kikuyu UVI	15	16	16	16	13	11	11	13	14	14	13	13
Ruiru UVI	15	16	16	16	13	11	11	13	14	14	13	13
Nairobi UVI	15	16	16	16	13	11	11	13	14	14	13	13
Nakuru UVI	16	17	17	17	14	12	13	14	15	15	14	14