UV Index in Horizontina, Brazil

Last updated: August 1, 2025

Understanding the UV Index in Horizontina, Brazil, is crucial for protecting your skin and overall health under the sun. With its Cfa climate, Horizontina experiences diverse weather patterns that can impact UV exposure throughout the day. Knowing the UV levels helps in preventing sunburns, reducing the risk of skin cancer, and ensuring you enjoy the outdoors safely. During peak hours, particularly from 12 PM to 1 PM when the UV Index rises to 6, it's essential to take precautions. Stay informed and safeguard your skin while enjoying Horizontina’s beautiful sunny days!

Hourly UV Index in Horizontina

The UV Index starts the day at a cool 0 by 7:00 AM, offering a gentle rise in sunlight exposure. As the hours unfold, it gradually climbs to a moderate 5 by 12:00 PM and reaches its peak of 6 at 1:00 PM, a time when sun safety is particularly essential. Afterward, the intensity wanes, dipping back down to 3 by 3:00 PM, offering a more manageable environment for outdoor activities. As the afternoon progresses into the evening, the UV Index retreats to 1 by 5:00 PM, settling back to 0 by 6:00 PM, signaling the end of the peak UV exposure for the day. It's a perfect reminder to enjoy the sun early while staying mindful of its intensity!

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	4	moderate	30 min
11:00	6	high	25 min
12:00	7	high	25 min
13:00	7	high	25 min
14:00	6	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Horizontina

Throughout the year, the UV Index experiences significant seasonal variations, with highest levels occurring from January to March, where it reaches an extreme index of 15 to 12 and a burn time as low as 10 minutes. This trend continues with high-risk months in October and November that again escalate to index levels of 14. During the spring and summer months, the index decreases slightly: in April, it drops to 10, and by May, it sits at 6. While summer sees lower levels, July and August maintain a high exposure category of 6 to 7, with longer burn times of 25-30 minutes. Visitors and residents should take extra precautions during the extreme months—particularly from January to March and in late October to November—by wearing protective clothing, applying sunscreen, and seeking shade to minimize harmful UV exposure.

Monthly Maximum UV Index for Horizontina, Brazil

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

The table above highlights how UV exposure in Horizontina 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.

Horizontina'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
Horizontina	15	14	12	10	6	5	6	7	10	13	14	14
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