UV Index in Parnaiba, Brazil

Last updated: July 2, 2025

In Parnaiba, Brazil, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding the UV levels throughout the day can help residents and visitors make informed decisions about sun exposure. With a tropical climate (Aw), Parnaiba experiences intense sunlight, especially from 10 AM to 2 PM when the UV Index peaks at 11, indicating a very high risk of harm from unprotected sun exposure. By staying informed about these risks, everyone can enjoy the beautiful outdoors while safeguarding their skin from potential damage.

Hourly UV Index in Parnaiba

The UV Index rises sharply throughout the morning, starting from a modest 1 at 07:00 and making a steady climb to reach its peak of 11 at both 11:00 and 12:00. During this prime time, sun protection is essential to safeguard against harmful rays. As the afternoon progresses, the index begins to decline, dropping to 10 at 13:00 and then tapering off to 4 by 15:00. By late afternoon, the UV Index diminishes significantly, falling to 1 by 17:00 and ultimately reaching 0 at 18:00 and 19:00. This trend emphasizes the importance of planning outdoor activities for early morning or late afternoon to enjoy the sun safely!

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	5	moderate	30 min
10:00	8	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 Parnaiba

The UV Index remains consistently high throughout the year, with extreme levels noted from January to March, peaking at 16 in March. All months show a burn time of just 10 minutes, indicating that visitors and residents should exercise caution at all times. The high-risk months for UV exposure are from January to April, where the UV Index ranges between 14 and 16. During these months, it is crucial to wear protective clothing, apply sunscreen liberally, and seek shade whenever possible. As UV levels decline slightly from June through August, they remain in the extreme category, reminding everyone that sun safety should be a year-round priority. Stay vigilant and protect your skin!

Monthly Maximum UV Index for Parnaiba, Brazil

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

The table above highlights how UV exposure in Parnaiba 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.

Parnaiba'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
Parnaiba	14	14	16	15	13	12	11	12	13	13	13	13