UV Index in Caraguatatuba, Brazil

Last updated: August 1, 2025

In Caraguatatuba, Brazil, understanding the UV Index is essential for safeguarding your skin amidst the region’s tropical climate. With its sunny days and high UV exposure, awareness of UV levels can prevent painful sunburns and long-term skin damage. On a typical day, UV levels fluctuate significantly, peaking at a hazardous 7 around midday. This makes it crucial for residents and visitors alike to monitor the UV Index regularly to enjoy the stunning beaches safely while prioritizing skin health. Stay informed and protect yourself from the sun’s harmful effects!

Hourly UV Index in Caraguatatuba

At dawn, the UV Index starts off low, with a maximum of 1 at 07:00 and 08:00. As the sun rises higher, it reaches 3 by 09:00, before climbing to a peak of 7 at 12:00. This midday intensity signifies a need for sun protection, especially during the height of the day when UV exposure is most potent. The index begins to decline in the afternoon, dropping to 5 at 14:00 and settling back to 1 by 17:00. By 18:00 and into the evening, the UV Index sharply drops to 0, marking a safe time to enjoy outdoor activities without the risk of sunburn. Stay sun-safe!

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	4	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 min
14:00	6	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 Caraguatatuba

Throughout the year, the UV Index reveals significant seasonal changes in sun exposure risk. The months of January, February, March, April, September, October, November, and December consistently showcase an extreme exposure category with a high UV Index ranging from 12 to 15 and a quick burn time of 10 minutes, marking them as high-risk months for sunburn. Conversely, during May and August, the UV Index lowers to 8 and 9 respectively, though still classified as very high, offering a slightly longer burn time of 15 minutes. In the summer, June and July present a lower UV Index of 6 and 7 classified as high, with a burn time extending to 25 minutes. Visitors and residents alike should exercise caution, especially during extreme months, by seeking shade, wearing protective clothing, and applying sunscreen frequently to minimize health risks.

Monthly Maximum UV Index for Caraguatatuba, Brazil

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

The table above highlights how UV exposure in Caraguatatuba 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.

Caraguatatuba'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
Caraguatatuba	15	15	12	11	8	6	7	9	11	13	14	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