UV Index in Teresina, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Teresina, Brazil is crucial for maintaining healthy skin and preventing sunburn. With the city’s tropical climate, residents and visitors alike face significant risks from high UV levels, especially during peak hours when values can soar to 11. This makes awareness and precautionary measures essential for protecting yourself from potentially harmful effects of solar radiation. By monitoring the UV Index, you can make informed decisions about sun protection, ensuring a safe and enjoyable experience under Teresina’s bright sun.

Hourly UV Index in Teresina

The UV Index today starts off modestly at 1 by 07:00, but as the sun rises higher, it peaks dramatically at 11 between 11:00 and 12:00, indicating a period of high risk for harm from unprotected sun exposure. At 09:00, it reaches 6, prompting a bit more caution, while 10:00 brings a significant jump to 9. As the afternoon unfolds, the index begins to decline, dropping to 4 by 15:00 and tapering off to 1 by 17:00. After 18:00, the UV Index falls to 0, ensuring that later in the day, the risk of UV exposure diminishes completely. Stay protected during those 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	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	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 Teresina

The UV Index in our region exhibits extremely high levels consistently throughout the year, peaking in March at 16 and remaining at 13-14 during the other months. January through April shows the highest UV exposure, making these high-risk months for sunburn, with a burn time as short as 10 minutes under direct sunlight. Visitors and residents should take precautions year-round, including wearing protective clothing, applying broad-spectrum sunscreen, seeking shade, and limiting sun exposure, especially during the midday hours to minimize skin damage and ensure safety.

Monthly Maximum UV Index for Teresina, Brazil

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

The table above highlights how UV exposure in Teresina 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.

Teresina'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
Teresina	14	14	16	15	13	11	11	12	13	13	13	14