UV Index in Isaka, Tanzania

Last updated: May 3, 2025

Understanding the UV Index in Isaka, Tanzania, is crucial for protecting your skin from harmful ultraviolet rays. With a climate classified as Aw, Isaka experiences significant UV exposure, particularly during midday hours when the index can soar to a staggering 13. Being aware of these UV levels is essential not only for sunburn prevention but also for long-term skin health. By staying informed about the daily UV Index, you can take appropriate precautions to enjoy the beautiful Tanzanian sun while minimizing your risk of skin damage. Remember, smart sun safety starts with understanding the UV Index!

Hourly UV Index in Isaka

As the sun rises, the UV Index starts fairly low, peaking at 1 at both 07:00 and 08:00. By 09:00, the index climbs to 4, signaling the onset of stronger rays. The real intensity kicks in around 10:00, where it reaches 7, and it soars to a striking 11 at 11:00—making it crucial to seek shade or wear protection. The UV Index hits its maximum at 12:00, soaring to 13, and remains high until 13:00. From there, it begins to decline, dropping to 12 by 14:00, and further diminishing to 8 by 15:00. As the sun sets, the levels continue to fall, landing at 4 by 16:00, then easing down to 2, 1, and finally 0 by 19:00. This pattern clearly underscores the importance of sun safety during the peak hours, especially between 11:00 and 13:00.

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	4	moderate	30 min
10:00	7	high	25 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	8	very high	15 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 Isaka

Throughout the year, the UV Index exhibits consistently extreme levels, with values peaking from January to April at 16, and remaining elevated until October. The highest risk months, January through April, necessitate particular caution as the UV Index reaches its peak. Visitors and residents are strongly advised to limit sun exposure during these periods, utilizing protective measures such as sunscreen, hats, and long-sleeved clothing to mitigate the risk of skin damage. Even in the slightly lower UV conditions of May to November, vigilance is essential, as the UV Index remains above 10 with a persistent burn time of just 10 minutes. Always prioritize skin safety when enjoying outdoor activities.

Monthly Maximum UV Index for Isaka, Tanzania

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

The table above highlights how UV exposure in Isaka 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.

Isaka'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
Isaka	15	16	16	16	13	11	12	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