UV Index in Crateus, Brazil

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents of Crateus, Brazil, where the sun's rays can be particularly intense due to its tropical climate (Aw). By staying informed about UV levels, you can effectively prevent sunburns and safeguard your skin health. With peak UV Index values soaring to 12 during midday, it’s essential to recognize the risks associated with outdoor activities, ensuring you take appropriate measures to protect yourself from harmful solar exposure.

Hourly UV Index in Crateus

At dawn, the UV Index starts off gently at 1 by 07:00, but as the morning unfolds, it swiftly climbs. By 09:00, the index hits 6, indicating a moderate risk of harm from unprotected sun exposure. The sun reaches its zenith around noon, peaking at a scorching 12 at 12:00. 11:00 to 12:00 marks the most dangerous hours for sun exposure, with the UV Index staying at 11 and 12, so sunscreen is essential! After this peak, a gradual decline begins. By 14:00, it drops to 7, and then further descends into the afternoon and evening, stabilizing at 0 by 19:00, indicating a safe end to sun exposure for the day. This data serves as a reminder to stay sun-safe during those critical midday 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	7	high	25 min
10:00	10	very high	15 min
11:00	12	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 Crateus

Throughout the year, the UV index in this region remains consistently high, with extreme levels recorded from January through November, particularly peaking at 15 in March and April. The high-risk months for UV exposure are from January to November, where the burn time of only 10 minutes is significant, highlighting the urgency for protective measures. Visitors and residents are strongly advised to take precautions year-round by wearing broad-spectrum sunscreen, protective clothing, and seeking shade during peak sunlight hours, especially when planning outdoor activities. With these measures in mind, one can safely enjoy the beautiful, sunny climate while minimizing the risk of UV-related health issues.

Monthly Maximum UV Index for Crateus, Brazil

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

The table above highlights how UV exposure in Crateus 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.

Crateus'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
Crateus	14	14	15	15	13	11	12	13	13	13	14	14