UV Index in Zimmi, Sierra Leone

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Zimmi, Sierra Leone, where the tropical climate poses unique challenges for skin health. As UV levels can soar to a high of 12 during midday, being aware of these fluctuations helps prevent sunburn and long-term skin damage. With daily exposure risks varying significantly throughout the day, knowing when to seek shade or apply sunscreen is vital. Protect your skin and enjoy the beautiful sunny days in Zimmi by keeping an eye on the UV Index!

Hourly UV Index in Zimmi

Throughout the day, the UV Index exhibits a dynamic rise and fall, peaking dramatically at 12 between noon and 1 PM. Starting off at a low 1 in the early morning hours, the index gradually climbs as the sun ascends, reaching 6 by mid-morning. The ascent continues, with a notable spike to 10 at 11 AM, before hitting its zenith at 12 at both 12 PM and 1 PM. As the afternoon wears on, a gentle decline begins, dropping to 8 by 3 PM and further to 5 at 4 PM. The evening brings a swift descent, falling back to 2 by 5 PM, and ultimately dwindling down to a 0 by 7 PM. This data serves as a reminder to stay protected during those peak hours, especially from noon to 1 PM, when the sun's rays are the strongest.

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	6	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	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