UV Index in Mwanga, Tanzania

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Mwanga, Tanzania, where the tropical climate can expose individuals to harmful ultraviolet radiation. The UV Index measures sun exposure levels throughout the day, helping to inform effective sunburn prevention strategies and promote long-term skin health. With typical midday values peaking at 11, the risk of skin damage is significant, especially from 10 AM to 2 PM, when the sun's intensity is at its highest. Staying informed about UV levels allows you to enjoy Mwanga's beautiful sunny days while protecting yourself from the potential risks associated with high UV exposure.

Hourly UV Index in Mwanga

At dawn, the UV Index starts at a gentle 1 by 7:00 AM, gradually rising as the sun climbs higher in the sky. By 9:00 AM, it reaches a moderate 4, urging early risers to stay vigilant. The intensity peaks at noon, hitting a scorching 11, indicating a high risk of harm from unprotected sun exposure. This peak continues until 1:00 PM, where it remains at 11 before beginning its descent. The afternoon sees a noticeable drop, with the index falling to 6 by 3:00 PM and further decreasing to 3 by 4:00 PM. As the day winds down, the UV Index drops to a safe 1 by 5:00 PM and finally falls to 0 by 7:00 PM, signaling the end of the sun's powerful rays. Stay informed and protect your skin 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	9	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 Mwanga

The UV Index exhibits particularly high levels throughout the year, with extreme exposure categories dominating from January to April, where values range from 15 to 16. The high-risk months for UV exposure are notably from January to March. As the year progresses into the summer months of May through August, the UV Index gradually decreases but remains in the high range, hitting 11 to 13. Even during the fall and winter months, from September to December, the UV Index stays elevated, averaging between 13 to 14. Visitors and residents should take caution during these months, particularly from January to March, and apply protective measures such as sunscreen and protective clothing, as burn times can occur in just 10 minutes in extreme conditions.

Monthly Maximum UV Index for Mwanga, Tanzania

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

The table above highlights how UV exposure in Mwanga 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.

Mwanga'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
Mwanga	15	15	16	15	13	11	11	13	14	14	14	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