UV Index in Zimmi, Sierra Leone

Last updated: June 2, 2025

Understanding the UV Index in Zimmi, Sierra Leone is crucial for safeguarding your skin health and preventing sunburn, especially in the region's tropical climate. With UV levels peaking at 12 during midday, it's essential to be aware of when to seek shade or apply sunscreen. Knowledge of these UV exposure risks can help you protect yourself and your loved ones while enjoying the outdoor beauty of Zimmi. Stay informed, stay safe, and embrace the sun wisely!

Hourly UV Index in Zimmi

As the sun rises, the UV Index begins its climb, starting at a mere 1 at 7:00 AM. By 8:00 AM, it nudges up to 2, a gentle reminder to take precautions under the sun. However, from 9:00 AM onward, the intensity ramps up quickly, reaching a peak of 12 between noon and 1:00 PM—a peak time for sun exposure. As midday passes, the index gradually descends, dipping to 10 at 2:00 PM, then tapering off to 4 by 4:00 PM and continuing down to 0 by 7:00 PM. This hourly fluctuation illustrates the need for vigilant sun safety during the day, particularly during those midday hours when the UV intensity is at its highest.

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	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 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 Zimmi

Throughout the year, UV index levels remain notably high, with extreme exposure risks from January to October where the index frequently reaches 11 to 13. The peak months for UV exposure are April, May, August, and September, where the index consistently hits 13, indicating an extreme burn time of just 10 minutes. As we move into November and December, the risk slightly decreases to a very high category, with a UV index of 10 and an extended burn time of 15 minutes. Visitors and residents should take precautions during these high-risk months by wearing sunscreen, protective clothing, and minimizing sun exposure, particularly during peak hours, to safeguard against harmful UV radiation.

Monthly Maximum UV Index for Zimmi, Sierra Leone

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

The table above highlights how UV exposure in Zimmi compares to other major locations across Sierra Leone. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Zimmi's solar exposure compared to other cities in Sierra Leone. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Freetown UVI	10	11	11	12	13	12	13	13	13	12	10	9
Bo UVI	10	11	11	13	13	12	12	13	13	12	10	10
Makeni UVI	10	11	11	12	13	13	13	13	14	12	10	9
Zimmi	11	11	12	13	13	12	12	13	13	12	10	10
Kenema UVI	11	11	11	13	13	12	13	13	13	12	10	10
Koidu UVI	11	11	12	13	13	13	13	13	14	12	10	10