UV Index in Guapimirim, Brazil

Last updated: July 2, 2025

Understanding the UV Index in Guapimirim, Brazil, is essential for safeguarding your skin and overall health. With the area's Aw climate, residents and visitors alike are often exposed to varying UV levels that can lead to sunburn and long-term skin damage. During peak hours, notably from 11:00 AM to 1:00 PM, the UV Index can reach up to 7, indicating a high risk of harm from unprotected sun exposure. Being aware of these levels allows you to take necessary precautions, ensuring enjoyable and safe outdoor activities in this beautiful Brazilian locale. Stay informed and protect your skin!

Hourly UV Index in Guapimirim

The UV Index throughout the day paints a vivid picture of sun intensity, starting at a modest 1 at 07:00 and gradually climbing to its peak of 7 from 11:00 to 13:00. This high level signifies a heightened risk for prolonged sun exposure, perfect for sun lovers but cautionary for the rest. From the peak, the index starts to dip, dropping to 5 at 14:00 and dwindling to 1 by 16:00. As the sun begins to set, the UV Index plummets to 0 by 18:00 and remains in the safe zone through the evening. Plan your outdoor activities wisely, ensuring midday sun protection while enjoying the earlier and later 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	2	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	7	high	25 min
13:00	7	high	25 min
14:00	5	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 Guapimirim

Throughout the year, UV Index levels exhibit significant seasonal variations, with extreme levels predominantly occurring from January to April and again in September to November. High-risk months include January to April and September to November, where the UV Index consistently reaches extreme levels (10 or above) with burn times as short as 10 minutes. In contrast, May to August shows a decrease in UV intensity, although May and August still classify as very high with burn times of 15 minutes. To ensure safety, it is crucial for both visitors and residents to take precautions during peak UV months by wearing suitable sun protection like sunscreen, hats, and sunglasses, particularly during midday hours when UV exposure is at its highest.

Monthly Maximum UV Index for Guapimirim, Brazil

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

The table above highlights how UV exposure in Guapimirim 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.

Guapimirim'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
Guapimirim	16	15	13	11	8	6	7	9	12	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