UV Index in Entre Rios, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Entre Rios, Brazil, is essential for promoting skin health and preventing sunburn. With UV levels reaching as high as 9 during midday hours, awareness is crucial for both residents and visitors to enjoy the beautiful sun safely. Entre Rios, characterized by its tropical climate, often exposes individuals to significant UV radiation, particularly from 10 AM to 2 PM when the risk is at its peak. Arm yourself with knowledge about the UV Index to protect your skin from harmful effects and make the most of your time outdoors!

Hourly UV Index in Entre Rios

The UV Index throughout the day showcases a distinctive pattern, peaking dramatically as the sun ascends. From 7:00 AM to 8:00 AM, the index starts at a low 1, gradually climbing to a moderate 3. By 9:00 AM, the intensity rises to 5, but the real surge occurs between 10:00 AM and 12:00 PM, where it reaches a maximum of 9, indicating a high risk for sun exposure. As afternoon approaches, the UV Index begins to taper off, dropping to 5 by 2:00 PM, and further declining to 3 at 3:00 PM. The day winds down with 1 at 4:00 PM and dwindling to 0 by 6:00 PM. To ensure safety during peak hours, it's crucial to take precautions from 10:00 AM to 12:00 PM, when UV radiation is at its strongest.

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	9	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 min
14:00	5	moderate	30 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 Entre Rios

Throughout the year, UV radiation levels remain notably high, with the most extreme months identified as November (UV Index 15), followed closely by January, February, March, April, August, September, and October (UV Index 14). During these months, the burn time is as short as 10 minutes, necessitating heightened awareness and protection. Conversely, June and July see a slight reduction in risk (UV Index 9 and 10, respectively), extending burn time to 15 minutes. Residents and visitors are strongly advised to take precautionary measures year-round, wearing sunscreen, protective clothing, and sunglasses, especially during the high-risk months to minimize the likelihood of skin damage from UV exposure.

Monthly Maximum UV Index for Entre Rios, Brazil

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

The table above highlights how UV exposure in Entre Rios 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.

Entre Rios'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
Entre Rios	14	14	14	13	11	9	10	12	13	14	15	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13