UV Index in Sumbawanga, Tanzania

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Sumbawanga, Tanzania, where the sun’s rays can be intense. With a climate classified as Aw, the region experiences significant UV exposure, particularly during midday hours. Knowledge of UV levels not only helps in preventing sunburn but also plays a vital role in maintaining overall skin health. During peak times, such as between 11:00 AM and 1:00 PM, the UV Index can soar to as high as 11, posing serious risks if proper precautions aren’t taken. Staying informed about these levels empowers individuals to enjoy the beautiful sunny days while safeguarding their skin from harmful effects.

Hourly UV Index in Sumbawanga

As the day unfolds, the UV Index reveals a striking increase in sun intensity, peaking at a remarkable 11 at 1 PM. Early on, from 7 AM to 9 AM, the levels hover low between 1 and 3, making it a safe time for morning strolls. However, by 10 AM, the index climbs to 5, signaling a need for protection as the sun becomes more potent. The crucial hours follow with the UV index reaching its zenith at 12 PM with a 10, before slightly receding to 7 by 3 PM. As the afternoon wanes, the index descends to 4 at 4 PM and dwindles to a safe 0 by 7 PM, marking the end of the day’s intense solar exposure. Remember, when the sun shines bright, especially around noon, it’s essential to safeguard your skin!

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	5	moderate	30 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	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 Sumbawanga

Throughout the year, the UV Index remains alarmingly high, consistently categorized as extreme with burn times as low as 10 minutes across every month. The standout months exhibiting the highest UV levels are January, February, March, and April, all with a UV Index of 17. Even in the summer months, UV levels remain dangerously elevated, peaking at 13 in May and August. Consequently, visitors and residents should exercise extreme caution during this period. It is crucial to apply sunscreen liberally, wear protective clothing, and seek shade whenever possible to minimize the risk of skin damage. Regular monitoring of the UV Index is also advised to stay informed about daily fluctuations in UV exposure.

Monthly Maximum UV Index for Sumbawanga, Tanzania

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

The table above highlights how UV exposure in Sumbawanga 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.

Sumbawanga'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
Sumbawanga	17	16	17	16	13	11	12	13	14	14	14	15