UV Index in Belem de Sao Francisco, Brazil

Last updated: July 2, 2025

In Belém de São Francisco, Brazil, awareness of the UV Index is crucial for protecting your skin from harmful solar radiation. Understanding the UV levels throughout the day can help you take preventive measures against sunburn and long-term skin damage. With a BSh climate that boasts plenty of sunshine, Belem experiences elevated UV exposure, peaking around midday with an index of 11—category very high. By staying informed about the UV Index, residents and visitors can enjoy the sun safely while prioritizing skin health.

Hourly UV Index in Belem de Sao Francisco

Starting off the day, the UV Index begins at a mild 1 at 07:00, ideal for morning strolls. As the sun climbs higher, the intensity picks up, reaching 3 by 08:00 and surging to a notable 6 by 09:00. The peak occurs around 12:00 when the UV Index hits a strong 11, signaling the need for sun protection. After midday, the index gradually declines, falling to 9 by 13:00, then dipping to 6 at 14:00. As the afternoon wanes, levels continue to drop, hitting 3 at 15:00, before dropping back to 1 by 16:00 and finally settling to 0 after 18:00. This pattern highlights the importance of sun safety during the peak hours from 11:00 to 13:00.

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

Monthly UV Index Trends in Belem de Sao Francisco

The UV Index reveals a significant seasonal variation in ultraviolet exposure, with the peak occurring from March to November, where values consistently remain in the extreme category. Notably, the months of January, February, March, April, July, August, and November exhibit particularly high UV levels, often reaching or exceeding 14. High-risk months for UV exposure include March, November, and April, when the Index peaks at 15, indicating an urgent need for protective measures. Visitors and residents alike are strongly advised to take precautions during these months, such as wearing protective clothing, using broad-spectrum sunscreen, and minimizing sun exposure, especially during peak hours.

Monthly Maximum UV Index for Belem de Sao Francisco, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Belem de Sao Francisco. 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 Belem de Sao Francisco, 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 Belem de Sao Francisco UV Index with Other Brazil Cities

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

Belem de Sao Francisco's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rio de Janeiro UVI	15	14	13	10	7	6	7	9	11	12	13	15
Sao Paulo UVI	16	15	12	11	8	6	7	9	11	13	14	15
Belo Horizonte UVI	17	16	14	12	9	7	8	10	12	13	14	16
Salvador UVI	14	14	14	13	10	9	9	12	12	15	15	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Belem de Sao Francisco	14	14	15	14	12	10	11	12	13	14	15	14