UV Index in Byumba, Rwanda

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors of Byumba, Rwanda, where the sun’s rays can be intense, particularly during midday hours. With UV levels peaking at a striking 12 around noon, being aware of these daily fluctuations is essential for effective sunburn prevention and safeguarding your skin health. Byumba's Aw climate contributes to significant UV exposure risks, especially between 10 AM and 2 PM, making it important to protect yourself from harmful UV radiation to enjoy the beautiful outdoors safely. Stay informed and protect your skin—your future self will thank you!

Hourly UV Index in Byumba

As the day unfolds, the UV Index begins to rise steadily, peaking at 12 around noon, indicating a high risk of harm from unprotected sun exposure. Starting from a mild 1 at 07:00, it climbs to 2 by 08:00, then surges to a significant 9 by 10:00. The intensity continues to escalate, reaching its maximum at 11 by 11:00, just before noon. After a slight dip to 8 by 14:00, the UV Index begins its gradual decline, dropping to 2 by 16:00, and finally resting at 0 by 18:00—a clear indication that the sun's rays are no longer a concern. To protect your skin, it's crucial to seek shade and apply sunscreen during those peak hours!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Byumba

Throughout the year, seasonal UV changes indicate consistently high levels of UV radiation across every month, with an extreme exposure category and a quick burn time of just 10 minutes. The high-risk months are particularly prominent from January to April, where UV Index readings peak at 15 to 17. Visitors and residents are strongly advised to take preventive measures during these months, including wearing broad-spectrum sunscreen, protective clothing, and seeking shade when outdoors. Maintaining vigilance about sun exposure is essential year-round, as even the lower index months still reflect significant UV intensity.

Monthly Maximum UV Index for Byumba, Rwanda

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

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

Byumba's solar exposure compared to other cities in Rwanda. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Gisenyi UVI	15	16	16	16	14	12	11	13	14	13	13	13
Kigali UVI	15	16	16	15	14	12	12	13	14	13	13	13
Gitarama UVI	15	16	16	16	14	12	12	13	14	13	13	13
Butare UVI	14	16	17	16	14	12	12	13	15	13	13	13
Byumba	15	16	17	16	14	12	12	13	14	14	13	13
Musanze UVI	15	16	17	16	14	12	12	13	14	14	13	14