UV Index in Kisiwani, Tanzania

Last updated: June 2, 2025

Understanding the UV Index in Kisiwani, Tanzania is essential for safeguarding your skin against damaging ultraviolet radiation. With the region's Aw climate, exposure to sunlight can lead to increased risks of sunburn and long-term skin health issues. The daily UV levels can fluctuate significantly, peaking between 11:00 AM and 1:00 PM when the index reaches a high of 11, making it crucial to stay informed about UV intensity. By monitoring these levels, you can take proactive measures to protect yourself and enjoy the sun safely in this vibrant location.

Hourly UV Index in Kisiwani

The UV Index for the day presents a clear picture of sun intensity, starting off gentle in the early hours. At 7:00 AM, it begins at a mild 1, increasing to 2 by 8:00 AM. As the sun rises higher, the index climbs rapidly; by 10:00 AM, it reaches 7 and peaks at an intense 11 around 12:00 PM and 1:00 PM. After this zenith, the levels gradually decline, dropping to 9 by 2:00 PM, 6 at 3:00 PM, and settling back to a safe 1 by 5:00 PM. The UV exposure diminishes further, reaching a low of 0 by 7:00 PM. Stay protected 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Kisiwani

Throughout the year, the UV Index remains consistently extreme, with the highest values recorded from January to April, averaging between 15 and 16. High-risk months for UV exposure include February and March, where the UV Index peaks at 16, indicating a very short burn time of only 10 minutes. Despite slightly lower values in the summer months of June and July (UV Index 11), precautions remain essential, as the exposure level remains extreme. Visitors and residents are advised to take protective measures seriously, especially during these high-risk months, by using sunscreen, wearing protective clothing, and seeking shade to mitigate the risk of UV-related health issues. As a general guideline, it's crucial to stay vigilant against UV exposure throughout the year, as the burn time remains constant at just 10 minutes across all months.

Monthly Maximum UV Index for Kisiwani, Tanzania

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

The table above highlights how UV exposure in Kisiwani compares to other major locations across Tanzania. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Kisiwani's solar exposure compared to other cities in Tanzania. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Zanzibar UVI	14	14	14	14	12	10	10	12	13	13	13	13
Dar es Salaam UVI	14	14	15	14	12	10	10	12	13	13	13	13
Mwanza UVI	14	15	16	15	13	11	11	13	14	13	13	13
Kisiwani	15	16	16	15	13	11	11	13	14	14	13	14
Arusha UVI	15	16	16	16	14	12	12	13	14	14	13	14
Mbeya UVI	16	16	16	16	13	11	11	13	14	14	14	15