UV Index in Formosa, Brazil

Last updated: July 2, 2025

Understanding the UV Index in Formosa, Brazil is crucial for maintaining optimal skin health and preventing sunburn. With the region's tropical climate, residents and visitors alike should be mindful of the UV levels throughout the day, particularly during the peak hours when the index reaches its maximum of 10 around noon. Being aware of these UV levels not only helps in enjoying outdoor activities safely but also plays a significant role in long-term skin protection. With typical UV exposure risks increasing significantly from late morning to early afternoon, it's essential to take appropriate precautions to safeguard your skin while enjoying the beauty of Formosa.

Hourly UV Index in Formosa

The hourly UV Index reveals a dynamic range of sun exposure today. Starting off at a gentle 1 at 7:00 AM, the index steadily climbs, peaking at a striking 10 by 12:00 PM—the peak exposure time. As the sun reaches its zenith, caution is advised for outdoor activities during the 11:00 AM to 1:00 PM window when the index remains high at 9 and 10. Following this midday surge, the index gracefully descends; by 3:00 PM, it dips to 4 and continues to decline to 1 by 5:00 PM. Finally, after a brief respite, the UV rays fade to 0 by 6:00 PM, signaling a safe return for evening outdoor plans. Stay sun-smart and enjoy the day wisely!

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	4	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	7	high	25 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 Formosa

The UV Index experiences significant extremes throughout the year, with high-risk months spanning from January to April and again in November and December, where values soar to 16 or 17, indicating an extreme exposure category. March and October also see particularly high levels at 15. While June and July offer a slight reprieve with a very high rating of 9 and 10 respectively, visitors and residents should remain vigilant. It's crucial for everyone to take precautions, particularly during these high-risk months, by applying sunscreen, wearing protective clothing, and seeking shade, especially during peak sunlight hours. With a 10-minute burn time in most months, being proactive can help prevent skin damage and ensure a safer outdoor experience.

Monthly Maximum UV Index for Formosa, Brazil

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

The table above highlights how UV exposure in Formosa 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.

Formosa'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
Formosa	16	16	15	13	11	9	10	12	14	15	16	17