UV Index in Usagara, Tanzania

Last updated: July 2, 2025

Understanding the UV Index is vital for residents and visitors in Usagara, Tanzania, where the tropical climate brings unique challenges regarding sun exposure. With high UV levels, particularly around midday, awareness of these values can help prevent sunburn and long-term skin damage. Usagara’s typical weather showcases stunning sunlit days, but its associated UV risks peak at levels that can lead to severe skin harm if protective measures aren't taken. By staying informed about the daily UV Index, you can enjoy the beautiful outdoors safely while protecting your skin and health.

Hourly UV Index in Usagara

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 Usagara

Throughout the year, the UV Index varies little, consistently remaining in the extreme exposure category, particularly from January to April, where it peaks at 16 in March. This indicates a significant risk of harm from unprotected sun exposure, especially during these high-risk months. Even in late spring and summer, when the UV Index drops slightly, burn times remain dangerously low at just 10 minutes. Visitors and residents are strongly advised to take precautionary measures year-round, including wearing sunscreen, protective clothing, and seeking shade, particularly from January through April and during other months when UV levels are elevated. Always be mindful of your time in the sun to avoid skin damage.

Monthly Maximum UV Index for Usagara, Tanzania

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

The table above highlights how UV exposure in Usagara 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.

Usagara'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
Usagara	14	15	16	15	13	11	12	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