UV Index in Cidreira, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Cidreira, Brazil, where the sun’s intensity can pose significant risks to skin health. With a climate characterized by warm, humid summers (Cfa), the potential for sunburn increases as UV levels peak during midday hours. Being aware of these UV levels not only helps in preventing immediate discomfort such as sunburn but also plays a vital role in reducing the long-term risks of skin damage and conditions like melanoma. As the UV Index reaches values as high as 6 around noon, it's essential to take precautions to protect your skin and enjoy the beautiful outdoors safely!

Hourly UV Index in Cidreira

The UV Index over the day shows a dynamic range of exposure, starting off calm in the early hours. At 07:00 and 08:00, it remains at a gentle 1, perfect for a leisurely morning. As the sun climbs higher, the index rises steadily, reaching 2 by 09:00 and peaking at 6 around 12:00, indicating caution is necessary for outdoor activities. The intensity slightly dips from there, down to 5 by 13:00 and then to 4 at 14:00, before gradually decreasing to 1 by 16:00. Finally, the UV exposure diminishes to 0 by 18:00, signaling a safe end to the day. Stay mindful of those peak hours for a fun and safe experience in the 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	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	5	moderate	30 min
12:00	6	high	25 min
13:00	5	moderate	30 min
14:00	4	moderate	30 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 Cidreira

Throughout the year, UV Index levels exhibit significant seasonal fluctuations, with high-risk months occurring primarily from January to March and again in November and December when the index reaches extreme levels (12 to 15), indicating a burn time of just 10 minutes. In April and September, the UV Index falls to very high levels (9), allowing slightly longer exposure times of 15 minutes, while May to August experience moderate to high levels (4 to 6) with burn times extending to 25-30 minutes. As such, it is strongly advised for both visitors and residents to take proactive sun protection measures during the extreme and very high UV Index months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade when necessary to minimize the risk of skin damage.

Monthly Maximum UV Index for Cidreira, Brazil

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

The table above highlights how UV exposure in Cidreira 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.

Cidreira'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
Cidreira	14	13	12	9	6	4	5	6	9	12	13	15
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