UV Index in Cacu, Brazil

Last updated: July 2, 2025

In Cacu, Brazil, understanding the UV Index is crucial for safeguarding your skin health against the intense sun exposure typical of its tropical climate. With peak UV levels soaring to 9 during midday, awareness of these fluctuations can be the difference between enjoying the sun safely and risking painful sunburn or long-term skin damage. By being informed about the local UV risks, residents and visitors can take essential precautions, ensuring a fun and safe outdoor experience while protecting against harmful effects of ultraviolet radiation. Remember, sun safety starts with knowledge!

Hourly UV Index in Cacu

As the day unfolds, the UV Index experiences a significant rise, starting from a gentle 1 at 7:00 AM and steadily escalating to a peak of 9 from 12:00 to 13:00. During these hours, the sun's rays are at their most intense, urging caution for those outdoors. Just before noon, the index hits 7, signaling a strong recommendation for sun protection. As the afternoon wanes, the UV levels begin to taper off, dropping to 5 by 15:00 and decreasing further to 2 at 16:00. By 18:00, the index falls to 0, marking the end of a day where sun safety was paramount until the early evening. Remember, while enjoying the outdoors, staying informed about the UV index is essential for protecting your skin!

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	7	high	25 min
15:00	5	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 Cacu

Throughout the year, the UV Index in the region displays notable seasonal variations, with extreme values recorded from January to April and again in late summer and fall. The highest risk months are January (UV Index 15), February (UV Index 16), and December (UV Index 16), where sun exposure should be limited to 10 minutes to avoid severe burns. In contrast, May to July sees a drop to very high levels, allowing for slightly longer exposure times of 15 minutes. As visitors and residents plan their outdoor activities, it is crucial to remain vigilant, particularly during the high-risk months, and to employ protective measures such as wearing sunscreen, hats, and sunglasses, especially during peak sun hours. Always monitor the UV Index and adapt your sun safety practices accordingly!

Monthly Maximum UV Index for Cacu, Brazil

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

The table above highlights how UV exposure in Cacu 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.

Cacu'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
Cacu	15	16	14	12	10	8	9	11	12	15	15	16
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13