UV Index in Reserva, Brazil

Last updated: July 2, 2025

In Reserva, Brazil, understanding the UV Index is crucial for protecting your skin from harmful sun exposure. With a climate characterized by warm, humid summers, the UV levels can spike dramatically, especially between 10 AM and 2 PM. Awareness of the UV Index helps prevent sunburn and long-term skin damage, making it essential for outdoor enthusiasts and residents alike. During peak hours, the UV Index can reach values as high as 7, indicating a need for protective measures. Stay informed and safeguard your skin against the sun’s intensity while enjoying the beautiful Brazilian outdoors!

Hourly UV Index in Reserva

The UV Index data reveals a significant fluctuation in solar intensity throughout the day. Starting at 07:00, the index registers a low 1, indicating minimal risk. As the sun climbs higher, it peaks dramatically at 12:00 with a 7, categorizing it as high. This midday zenith is crucial for outdoor activities; however, caution is advised. The afternoon sees a slight decline, dropping to 3 by 15:00, and eventually receding to 0 after 18:00. Thus, while the early hours offer safe sun exposure, midday warrants protective measures to shield against harmful UV rays.

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	6	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 Reserva

The UV Index demonstrates significant seasonal variations, with extreme levels persisting from January to April, and recurring in September, October, and November. These months are considered high-risk, with a burn time as short as 10 minutes, meaning individuals need to take precautions to avoid skin damage. From May to August, the UV Index shows a slight decline, ranging from very high to high levels, allowing for slightly longer exposure times of 15 to 25 minutes. Visitors and residents are advised to wear protective clothing, apply broad-spectrum sunscreen frequently, and seek shade during peak hours, especially in high-risk months. Staying informed about the UV Index can help ensure safety while enjoying outdoor activities.

Monthly Maximum UV Index for Reserva, Brazil

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

The table above highlights how UV exposure in Reserva 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.

Reserva'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
Reserva	15	15	13	11	8	6	7	9	11	14	15	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