UV Index in Njombe, Tanzania

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Njombe, Tanzania, where exposure to UV radiation can significantly affect skin health and increase the risk of sunburn. With Njombe's climate categorized as Cwb, residents experience distinct seasonal variations, leading to fluctuating UV levels. During the peak hours, particularly between 10:00 AM and 2:00 PM, the UV Index can rise to as high as 11, indicating an extreme risk of harm from unprotected sun exposure. By staying informed about daily UV levels, you can take essential precautions to protect your skin, ensuring a healthier and more enjoyable time outdoors.

Hourly UV Index in Njombe

As the sun rises and warms the day, the UV Index begins at a mild 1 at 07:00 and 08:00, making it safe to venture outdoors without much protection. By 09:00, it jumps to a moderate 3, hinting at the increasing intensity. The real peak arrives between 11:00 and 13:00, where the index soars to an impressive 11, signifying a high risk of harm from unprotected sun exposure. As the afternoon rolls on, the index gradually dips, dropping to 10 at 14:00 and then descending through the late afternoon to 2 by 17:00. The sun sets the scene for a safe evening as the index returns to 1 at 18:00, finally resting at 0 by 19:00. This hourly dance of UV radiation highlights the importance of sun safety 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	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 Njombe

The UV Index data reveals significant seasonal changes, with extreme exposure levels throughout the year. The highest-risk months are from January to April and August to October, where the UV Index remains consistently between 16 and 17, indicating a burn time of just 10 minutes. Even during the summer months of June and July, the UV Index remains high at 11. Residents and visitors should take precautions year-round, particularly during these high-risk periods, by wearing appropriate sun protection such as sunscreen, hats, and sunglasses, and seeking shade during peak sunlight hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Njombe, Tanzania

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

The table above highlights how UV exposure in Njombe 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.

Njombe'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
Njombe	16	17	17	16	13	11	11	13	14	14	14	16