UV Index in Caxias, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Caxias, Brazil, where the sun's rays can pose significant health risks. With maximum UV levels peaking at 12 during midday, awareness and preparation are essential for preventing sunburn and protecting your skin's long-term health. Caxias, characterized by its Aw climate, experiences varied UV exposure throughout the day, particularly in the late morning to early afternoon. By monitoring the UV Index, you can take proactive steps to enjoy the outdoors safely and preserve your skin's vitality in this vibrant region.

Hourly UV Index in Caxias

The UV Index throughout the day showcases a dramatic rise and fall, peaking at 12 around 12:00 PM. The morning starts gently, with a maximum of 3 at 08:00 AM, but by 10:00 AM, it escalates to 10, indicating a significant increase in sun intensity. This reaches its zenith at 12:00 PM, where a UV Index of 13 emphasizes the need for sun protection. The intensity begins to taper off after this peak, dropping to 4 by 15:00 PM and further declining to 1 by 17:00 PM. As the evening approaches, the UV Index effectively returns to 0 after 18:00 PM, signaling the end of sun exposure risk for the day. Be mindful of these fluctuations and prioritize sun safety during 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	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 Caxias

The UV Index remains consistently high throughout the year, indicating extreme risk of harm from unprotected sun exposure. January to April experience the highest values, peaking at 16 in March, which signifies a burn time as short as 10 minutes. From May to October, the index slightly drops but remains above 10, with monthly values ranging from 11 to 13, and continues to maintain a 10-minute burn time. November and December round out the year with values at 13, reinforcing the need for vigilance throughout all seasons. Given these alarming UV levels, it is crucial for both visitors and residents to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade, especially during peak sunlight hours.

Monthly Maximum UV Index for Caxias, Brazil

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

The table above highlights how UV exposure in Caxias 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.

Caxias'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
Caxias	14	14	16	15	13	11	11	12	13	12	13	13