UV Index in Cajueiro, Brazil

Last updated: July 2, 2025

In Cajueiro, Brazil, staying aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels allows residents and visitors alike to take necessary precautions against sunburn and long-term skin damage, especially in a region known for its tropical climate and intense sun exposure. With the UV Index peaking at 10 during midday, it's essential to be informed about the potential risks and how to protect yourself. By keeping an eye on the UV forecast, you can enjoy the sun safely and make the most of everything Cajueiro has to offer while prioritizing your skin's health.

Hourly UV Index in Cajueiro

The UV Index for the day shows a steady climb as the sun rises, hitting its peak between 11:00 AM and 12:00 PM with a maximum value of 10. During this peak period, caution is advised as UV radiation can be extremely harmful. As the afternoon progresses, the index begins a gradual decline, dropping to 8 by 1:00 PM and tapering off to 3 at 3:00 PM. As the sun sets, the UV Index decreases further, reaching 0 by 6:00 PM and remaining there for the evening, signaling a safe time to enjoy outdoor activities without the risk of overexposure. Remember to wear sunscreen and protective clothing during the peak hours!

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	9	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 Cajueiro

The UV Index in this region remains predominantly extreme throughout the year, with January through April and November consistently registering an index of 14. May and June slightly drop to an index of 12 and 11, respectively, while July shows a reduced yet still significant index of 10, categorized as very high. The UV levels rebound with August and September at 12 and 13, before returning to 14 in October and December. Consequently, the highest risk months are November and December, where the UV Index reaches 15. Visitors and residents are strongly advised to take protective measures, such as applying sunscreen, wearing protective clothing, and limiting daytime sun exposure, especially during peak hours, to mitigate the risks of skin damage and related health issues.

Monthly Maximum UV Index for Cajueiro, Brazil

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

The table above highlights how UV exposure in Cajueiro 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.

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