UV Index in Aracatuba, Brazil

Last updated: June 2, 2025

In Aracatuba, Brazil, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike make informed decisions about sun exposure, especially during the peak hours when UV radiation is at its highest. With a tropical climate characterized by warm temperatures and significant sunlight, Aracatuba presents unique challenges when it comes to UV exposure. During midday hours, for instance, the UV Index can soar to 7, indicating a high risk of harm from unprotected sun exposure. Stay informed and protect your skin while enjoying all that this vibrant city has to offer!

Hourly UV Index in Aracatuba

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 Aracatuba

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 Aracatuba, Brazil

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

The table above highlights how UV exposure in Aracatuba 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.

Aracatuba'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
Aracatuba	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