UV Index in Valparaiso, Brazil

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Valparaiso, Brazil. With peak UV levels typically reaching 7 during midday, awareness of UV exposure can help prevent sunburn and protect your skin health. This coastal city enjoys a warm climate, making it essential to monitor UV levels, especially during the summer months when the risk of overexposure is higher. By staying informed about the UV Index, you can enjoy the vibrant outdoor life of Valparaiso while keeping your skin safe from harmful rays.

Hourly UV Index in Valparaiso

The UV Index highlights a dynamic shift in sun exposure throughout the day. Starting off at a modest level of 1 at 07:00 and 08:00, the intensity gradually increases, peaking at 7 from 12:00 to 13:00, indicating high risk for harm from unprotected sun exposure. As the afternoon progresses, the index dips to 5 at 14:00 before gracefully descending to 3 by 15:00. The day winds down with the UV Index returning to its initial levels at 1 by 17:00, and then falling to 0 after 18:00, marking a safe end to sun exposure. It's a clear reminder to plan sun protection strategies, especially during the peak hours when the index reaches its zenith!

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	2	low	45 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	7	high	25 min
13:00	7	high	25 min
14:00	5	moderate	30 min
15:00	3	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 Valparaiso

The seasonal UV changes indicate that exposure levels are consistently high, particularly from January to April, where the UV Index remains in the extreme category, peaking at 16 in February and December. High-risk months include January, February, March, April, September, October, and November, as they all feature an extreme UV Index that can lead to sunburn in as little as 10 minutes. Conversely, the summer months of May, June, July, and August experience a drop to very high and high categories, with slightly longer burn times of 15 to 25 minutes. Visitors and residents should take precautions during all months, especially in extreme UV conditions, by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize the risk of skin damage.

Monthly Maximum UV Index for Valparaiso, Brazil

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

The table above highlights how UV exposure in Valparaiso 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.

Valparaiso'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
Valparaiso	15	16	13	11	8	7	8	10	12	14	14	16
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