UV Index in Yonibana, Sierra Leone

Last updated: August 1, 2025

Awareness of the UV Index is crucial for the residents of Yonibana, Sierra Leone, where the sun's rays can become intense, especially during peak hours. Understanding UV levels is essential not just for sunburn prevention but also for maintaining long-term skin health. With Yonibana's tropical climate, UV exposure risks can be significantly heightened, particularly around midday when the UV Index frequently reaches dangerous levels of 12 to 13. By staying informed about the UV Index, locals can take proactive measures to protect themselves and enjoy the sun safely.

Hourly UV Index in Yonibana

The UV Index today presents a notable peak at 12:00 PM, where it reaches a striking 12, indicating very high risk of harm from unprotected sun exposure. The day starts off gently, with a low UV Index of 1 from 07:00 to 08:00, providing a safe window for morning activities. As the sun climbs, intensity builds, escalating to 10 by 11:00 AM and peaking at 1 PM. After this zenith, the UV Index gradually tapers, dropping to 9 at 3:00 PM, and continues to decline, finally settling back to a safe level of 1 by 6:00 PM. For safety and health, it’s ideal to seek shade, wear protective clothing, and apply sunscreen between 11:00 AM and 3:00 PM, when UV levels are at their most aggressive.

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	10	very high	15 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	9	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 Yonibana

Throughout the year, the UV Index experiences significant changes, peaking in the summer months and indicating a higher risk of skin damage. The high-risk months for UV exposure are from March to October, where the UV Index consistently reaches extreme levels of 11 to 13, with a rapid burn time of only 10 minutes. Specifically, May to September sees the highest UV levels, prompting precautionary measures. In contrast, November to February presents a marginal decrease, with UV Index values dropping back to 10, categorized as very high. Visitors and residents are strongly advised to take protective actions, such as wearing sunscreen, protective clothing, and sunglasses, especially during the peak UV months, to reduce the risk of UV-related health issues.

Monthly Maximum UV Index for Yonibana, Sierra Leone

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

The table above highlights how UV exposure in Yonibana 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.

Yonibana'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
Yonibana	10	11	11	12	13	12	13	13	13	12	10	10
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
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