UV Index in Kisii, Kenya

Last updated: July 2, 2025

In Kisii, Kenya, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps residents and visitors alike to prevent sunburn and long-term skin damage, especially during peak hours when the risk is highest. With Kisii's tropical climate and high UV exposure—rising to a maximum of 12 at noon—it's essential to stay informed about UV conditions throughout the day. By being proactive, you can enjoy the beautiful outdoors while safeguarding your skin from harmful rays!

Hourly UV Index in Kisii

The UV Index throughout the day reveals a dynamic shift in sun strength. Starting off with a gentle maximum of 1 at both 07:00 and 08:00, the intensity begins to rise, reaching a moderate level of 3 by 09:00. As the clock strikes 10:00, the index leaps to 6, and by 11:00, it surges to 9, indicating increasing caution is needed. The day peaks at a scorching 11 at 12:00 and reaches its zenith with an astounding 12 at 13:00. A gradual decline follows, with levels dropping to 10 at 14:00, then 7 at 15:00, and finally settling back to 4 at 16:00. As the sun starts to set, the index plummets to 2 at 17:00, then quiets to 1 by 18:00, before dropping to 0 at 19:00. Be sure to take care 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	12	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 Kisii

The UV Index displays high levels of solar radiation throughout the year, with extreme exposure categories persisting from January through December. Notably, the highest UV Index values occur in February and March, reaching 16, indicating a risk of severe sunburn within just 10 minutes of exposure. Other high-risk months include January and April, both at 15, and May at 14. Even during the summer months of June and July, the UV Index remains at extreme levels of 12. For both visitors and residents, it is crucial to take sun safety precautions year-round, especially during these high UV months. Recommendations include applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade to minimize risk of skin damage.

Monthly Maximum UV Index for Kisii, Kenya

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

The table above highlights how UV exposure in Kisii 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.

Kisii'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
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
Kisii	15	16	16	15	14	12	12	13	14	14	13	13
Nakuru UVI	16	17	17	17	14	12	13	14	15	15	14	14