UV Index in Mumias, Kenya

Last updated: July 2, 2025

In Mumias, Kenya, being aware of the UV Index is crucial for protecting your skin and maintaining overall health. With UV levels peaking at a staggering 11 during midday hours, understanding these fluctuations can empower you to take necessary precautions against sunburn and long-term skin damage. Mumias experiences a warm, tropical climate, which increases your exposure risk, especially between 10 AM and 2 PM when the sun's rays can be particularly intense. By staying informed about the UV Index, you can enjoy the beautiful Kenyan sun while keeping your skin safe and healthy.

Hourly UV Index in Mumias

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 Mumias

Throughout the year, the UV Index remains consistently high in this region, indicating extreme exposure levels particularly from January to April, where the index peaks at 16 in March. As summer approaches, the UV Index slightly decreases, stabilizing around 11 to 13 from June to October, but still implies a high risk of harm from unprotected sun exposure. November and December also maintain a high index of 13 and 12, respectively. Visitors and residents are strongly advised to take precautions, such as wearing sunscreen, protective clothing, and seeking shade, especially during the high-risk months of January through April when the burn time is only 10 minutes. Staying informed and vigilant is essential to mitigate the risks associated with extreme UV exposure year-round.

Monthly Maximum UV Index for Mumias, Kenya

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

The table above highlights how UV exposure in Mumias 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.

Mumias'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
Mumias	14	15	16	15	13	11	11	13	13	13	13	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