UV Index in Porto Walter, Brazil

Last updated: July 2, 2025

In Porto Walter, Brazil, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding the daily UV levels helps residents and visitors alike prevent sunburn and long-term skin damage, allowing for safer outdoor activities in this beautiful region. With its tropical climate, Porto Walter experiences heightened UV exposure, especially during peak hours between 10 AM and 2 PM, when the index can soar to a staggering 11. By being aware of these levels, you can enjoy the sun while keeping your skin safe and healthy.

Hourly UV Index in Porto Walter

The UV Index today peaked dramatically in the late morning, starting from a low of 1 at 07:00 and climbing to an impressive 11 by 12:00. This intense exposure reached its zenith at 11:00, where precautions were essential as the Index hit 10. As the afternoon progressed, the UV levels began to gradually decline, dropping to 4 by 15:00 and further down to a modest 2 by 16:00. By the evening, the sun had softened, bringing the UV Index back to 1 at 17:00, and ultimately fading to 0 by 18:00, when the day's light had nearly vanished. Make sure to stay protected during peak hours to enjoy the sunshine safely!

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	2	low	45 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	7	high	25 min
15:00	4	moderate	30 min
16:00	2	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 Porto Walter

Throughout the year, UV Index values remain consistently high, with extreme exposure categories observed from January to December. Notably, the high-risk months include January through April, during which the UV Index peaks at 16, indicating a burn time of just 10 minutes. Even in the summer months of June and July, the UV Index remains elevated at 11 to 12, requiring caution for sun exposure. To protect yourself and enjoy outdoor activities safely, it is essential for both visitors and residents to apply broad-spectrum sunscreen, wear protective clothing, and seek shade during these peak months, particularly from January to April and into September, when the UV Index is also notably high.

Monthly Maximum UV Index for Porto Walter, Brazil

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

The table above highlights how UV exposure in Porto Walter 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.

Porto Walter'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
Porto Walter	15	16	16	15	12	11	11	12	13	15	15	14