UV Index in Geiro, Tanzania

Last updated: May 3, 2025

Understanding the UV Index in Geiro, Tanzania, is crucial for protecting your skin and overall health. With its warm Aw climate, residents and visitors alike face varying levels of sun exposure throughout the day, making awareness of UV levels all the more vital. The risk of sunburn increases significantly between 11:00 AM and 1:00 PM, reaching a peak UV Index of 13—a warning to take precautions. By staying informed about these levels, you can safeguard your skin from harmful effects and enjoy the beautiful Tanzanian sunshine with confidence.

Hourly UV Index in Geiro

The hourly UV Index paints a vivid picture of the sun's intensity throughout the day. Morning hours start with a gentle rise, peaking at 8 by 10:00 AM. As the clock strikes 11:00 AM, the index climbs to a robust 11, reaching its zenith of 13 at noon and continuing at that level until 1:00 PM. Early afternoon maintains a strong presence with readings of 10 at 2:00 PM, before a gradual decline begins. By 3:00 PM, it dips to 7, and as the day winds down, the UV Index decreases significantly to 3 at 4:00 PM, then falls sharply back to 1 by 5:00 PM, where it remains until the day closes with a 0 by 7:00 PM. If you’re planning outdoor activities, the most intense sun exposure is clearly between 11:00 AM and 1:00 PM, making those hours the ones to seek shade or apply sunscreen for protection.

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	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	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 Geiro

The UV Index in this region remains consistently high throughout the year, with monthly readings peaking at 16 in March. The highest-risk months for UV exposure are January through April and September through November, where the index values hover around 14 to 16, categorized as extreme. Visitors and residents should take precautionary measures during these months, ensuring to limit sun exposure to less than 10 minutes during peak hours, and always employing protective measures such as sunscreen, hats, and protective clothing. It is crucial to stay vigilant about UV safety to minimize the risk of skin damage and health issues.

Monthly Maximum UV Index for Geiro, Tanzania

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

The table above highlights how UV exposure in Geiro 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.

Geiro'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
Geiro	15	15	16	15	13	11	11	13	14	14	14	15
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