UV Index in Kasulu, Tanzania

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Kasulu, Tanzania, where the Aw climate brings a unique set of sun exposure challenges. With peak UV levels soaring to 13 during midday, awareness of these UV levels can play a vital role in preventing sunburn and promoting long-term skin health. As the sun’s intensity rises throughout the day, especially between 10:00 AM and 2:00 PM, it’s essential to take precautions. By staying informed about the UV Index, you can better protect yourself and enjoy the beautiful, sunny days Kasulu has to offer while minimizing skin damage risks.

Hourly UV Index in Kasulu

The UV index throughout the day presents a striking pattern, starting at a mild 1 from 07:00 to 09:00, making early hours a safe time for outdoor activities. As the sun rises higher, the index escalates sharply, hitting 6 by 10:00 and soaring to a peak of 13 by noon. This intensity remains consistent until 14:00 when it gradually declines, showcasing a protective drop to 2 by 17:00 and settling back to a safe 0 by dusk. With such fluctuating levels, it’s essential to stay sun-smart and take adequate precautions during peak hours—especially between 11:00 and 13:00 when UV exposure is most dangerous. So, plan your outdoor adventures wisely and keep that sunscreen handy!

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	10	very high	15 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	5	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 Kasulu

The UV Index in this region experiences extreme levels throughout the year, with particularly high readings in the early months. From January to April, the UV Index peaks at 16, maintaining a severe risk with a burn time of just 10 minutes. May marks a slight decrease to 13, but the extreme exposure continues into June and July with an Index of 11. The high-risk months for UV exposure are January through April, with significant caution advised. As a rule of thumb, all visitors and residents should take precautions such as wearing sunscreen, protective clothing, and sunglasses during these months and throughout the year, given the consistently high UV levels. It's crucial to limit sun exposure, especially around midday, to safeguard against harmful effects.

Monthly Maximum UV Index for Kasulu, Tanzania

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

The table above highlights how UV exposure in Kasulu 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.

Kasulu'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
Kasulu	15	16	16	16	13	11	11	13	14	13	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