UV Index in Acarau, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of Acarau, Brazil, where intense sun exposure is common due to its tropical climate. Awareness of UV levels helps in preventing sunburn and promoting long-term skin health, making it essential to monitor the daily UV Index. In Acarau, UV levels can soar, peaking at a staggering 13 from 11:00 AM to 12:00 PM, indicating a high risk for harmful effects during midday. By staying informed, you can enjoy the sun safely while minimizing your risk of skin damage.

Hourly UV Index in Acarau

The UV Index throughout the day reveals a striking pattern of intensity that peaks during the midday hours. It starts off at a gentle 2 at 07:00, gradually climbing to 4 by 08:00. The real surge occurs between 09:00 and 11:00, where it skyrockets to a high of 13, indicating a strong need for sun protection. As the afternoon progresses, the index begins to taper off, descending from 11 at 13:00 to 4 by 15:00, and finally dropping to a calm 0 by 19:00. To sum up, the day's UV exposure is intense yet fleeting, making the hours from 10:00 to 13:00 critical for sun safety!

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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 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 Acarau

The UV Index remains consistently extreme throughout the year, with January through March showing particularly high values, peaking at 16 in March. The high-risk months for UV exposure are from January to April, where the index reaches 14 to 16, indicating a very short burn time of just 10 minutes. Even during the summer months from June to August, while the index drops slightly to 11-12, the risk remains significant. It is crucial for both residents and visitors to take appropriate precautions, such as wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially during these high UV periods to minimize the risk of skin damage.

Monthly Maximum UV Index for Acarau, Brazil

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

The table above highlights how UV exposure in Acarau 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.

Acarau'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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Acarau	14	14	16	15	13	11	11	12	13	13	13	13