UV Index in Cumaru, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Cumaru, Brazil, where sunny days are abundant. With the potential for high UV levels, especially during midday hours, awareness of these indices can play a vital role in preventing sunburn and promoting long-term skin health. Cumaru’s diverse climate brings its fair share of sun exposure, making it essential to recognize the risks associated with UV radiation. From a maximum UV Index of 11 between 11:00 AM and 12:00 PM, it's clear that taking protective measures during peak hours is necessary for everyone to enjoy the sun safely!

Hourly UV Index in Cumaru

The UV Index rises dramatically throughout the morning, with a maximum peak of 11 recorded at 11:00 AM and 12:00 PM, indicating a high risk of harm from unprotected sun exposure. As the day progresses, the intensity gradually declines, dropping to 9 by 1:00 PM and then to 6 at 2:00 PM. By late afternoon, UV levels continue to fall, reaching 3 at 3:00 PM and tapering off to 1 by 4:00 PM. Finally, after 5:00 PM, the UV Index dips to 0, signaling a complete reduction in sun exposure risk. It’s essential for sun safety enthusiasts to prioritize outdoor activities during the early hours when UV levels are more manageable, while taking care against the intense midday sun.

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	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	9	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 Cumaru

The UV Index throughout the year displays extreme levels, particularly from January through November, with values consistently between 12 and 15, indicating a high risk of harm from unprotected sun exposure. Notably, the highest UV Index occurs in March at 15, closely followed by February and April at 14. Visitors and residents should take special care during these high-risk months and consistently throughout the year, ensuring they wear appropriate sun protection, including sunscreen, hats, and UV-protective clothing. With a burn time of only 10 minutes, it is crucial to limit sun exposure, especially during midday when UV radiation is at its peak.

Monthly Maximum UV Index for Cumaru, Brazil

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

The table above highlights how UV exposure in Cumaru 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.

Cumaru'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
Cumaru	14	14	15	14	12	11	11	12	13	13	14	14