UV Index in Bo, Sierra Leone

Last updated: July 2, 2025

Understanding the UV Index in Bo, Sierra Leone is crucial for protecting your skin and maintaining overall health in this tropical climate. With UV levels peaking at a high of 12 around noon, awareness of daily UV fluctuations can help prevent sunburn and long-term skin damage. The region's Am climate means strong sun exposure, particularly during the mid-day hours. By regularly checking the UV Index, residents and visitors can make informed decisions about sun safety, ensuring that outdoor activities remain enjoyable without compromising skin health.

Hourly UV Index in Bo

As the sun rises, the UV Index remains low, starting at 1 between 07:00 and 08:00. However, by 09:00, it climbs to 4, hinting at a more intense day ahead. The peak arrives at 12:00, where it reaches a blistering 12, indicating a significant risk for unprotected skin. This high level of UV exposure persists through the early afternoon, maintaining 12 until 13:00, before gradually tapering off to 11 at 14:00. As the day wanes, the index declines to 8 at 15:00, 5 at 16:00, and finally settles back to 1 by 18:00. Thankfully, by 19:00, it drops to 0, signaling a safe end to sun exposure. Plan your day wisely to dodge those midday rays!

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	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 Bo

The UV Index exhibits significant variations throughout the year, with the highest levels observed in the spring and summer months. From February to October, the indices range from 11 to 13, categorizing these months as having extreme exposure risks, resulting in a burn time of just 10 minutes for unprotected skin. Particularly high-risk months are March, April, May, August, and September, where the UV index peaks at 13. Conversely, the winter months of January, November, and December present a slightly lower risk, classified as very high, but still necessitate caution, with a burn time of 15 minutes. Visitors and residents are strongly advised to protect their skin by wearing sunscreen, hats, and clothing that offers UV protection, especially during the high-risk months. Regular checks of the UV index are recommended to ensure safe outdoor activities.

Monthly Maximum UV Index for Bo, Sierra Leone

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

The table above highlights how UV exposure in Bo 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.

Bo'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	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