UV Index in Nangwa, Tanzania

Last updated: July 2, 2025

In the vibrant town of Nangwa, Tanzania, understanding the UV Index is crucial for protecting your skin and overall health under the intense sun. With the region's Aw climate, the risk of harmful UV exposure can peak dramatically, particularly during midday hours when the index reaches a staggering 12. This level signifies a critical need for sunburn prevention measures to safeguard against skin damage and long-term health issues. By staying informed about UV levels, residents and visitors can enjoy the warm, sunny days while minimizing the risks associated with excessive sun exposure. Don't underestimate the power of the sun—knowledge is your best defense!

Hourly UV Index in Nangwa

The UV Index fluctuates dramatically throughout the day, peaking in intensity around noon. Starting at a mild 1 at 07:00, the index gradually climbs, reaching 6 by 10:00. The sun's strength culminates at a blazing 12 from 12:00 to 13:00, making this the most crucial time to protect your skin. As the afternoon progresses, the index begins to dip, dropping to 10 at 14:00, then easing down to 7 by 15:00. By evening, the levels plummet, settling back to a safe 0 by 19:00. It's wise to stay sun-savvy: midday is when the UV rays can be most harmful!

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	12	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 Nangwa

The UV Index in the region indicates consistently extreme levels throughout the year, with particularly high readings from January to April where the index notably peaks at 17. The months of January through March are the highest risk, maintaining a UV Index of 16-17 and a dangerously short burn time of just 10 minutes. After April, values gradually decline yet remain significant, with readings ranging from 11 to 15 through November. As such, it is crucial for both visitors and residents to take extra precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours, especially from late morning to early afternoon.

Monthly Maximum UV Index for Nangwa, Tanzania

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

The table above highlights how UV exposure in Nangwa 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.

Nangwa'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
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
Nangwa	16	17	17	16	14	11	12	14	15	14	14	15