UV Index in Aracaju, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Aracaju, Brazil, where the sun’s rays can be particularly strong. With a climate that boasts ample sunshine throughout the year, being aware of UV levels helps in preventing sunburn and protecting skin health. The UV Index typically peaks in Aracaju, reaching highs of 10 around midday, signifying an elevated risk of harm from unprotected sun exposure. By understanding these levels, you can enjoy the beautiful beaches and outdoor activities while ensuring your skin remains safe from the sun's potentially damaging effects.

Hourly UV Index in Aracaju

As the sun rises, the UV Index starts low at 1 at 07:00, making it a safe time for early birds. By 08:00, it climbs to 3, indicating a slight increase in UV exposure. The peak arrives sharply at 11:00 and 12:00, hitting a maximum of 10—a strong reminder to wear sunscreen and seek shade. Following this, the index gradually decreases, dipping to 6 by 14:00 and dropping further to 3 by 15:00. As the day winds down, UV levels return to a comfortable 1 by 16:00, fading to 0 by 18:00. This hourly pattern emphasizes the importance of midday protection while reminding us of the sun's dynamic presence throughout the day.

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	6	high	25 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 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 Aracaju

Throughout the year, the UV index in this region remains consistently high, with several months categorized as extreme exposure. The high-risk months for sun exposure are from January to April, and then again in August and October, where the UV index consistently reaches levels of 14 or 13, leading to a very short burn time of just 10 minutes. Visitors and residents are strongly advised to take necessary precautions during these months, such as wearing protective clothing, applying a high-SPF sunscreen, and seeking shade to minimize the risk of skin damage. June and July present slightly lower UV indices at 10, but caution is still warranted due to the very high exposure category, with a burn time of 15 minutes. Staying aware of the UV levels and taking proactive measures is essential for maintaining skin health year-round.

Monthly Maximum UV Index for Aracaju, Brazil

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

The table above highlights how UV exposure in Aracaju 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.

Aracaju'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
Aracaju	14	14	14	13	11	10	10	12	13	14	14	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13