UV Index in Parnaiba, Brazil

Last updated: May 3, 2025

Understanding the UV Index is essential for residents and visitors of Parnaiba, Brazil, where the tropical climate brings intense sun exposure year-round. With UV levels peaking at a staggering 13 during midday, awareness of these numbers is crucial for preventing sunburn and maintaining skin health. High UV exposure can lead to long-term skin damage, making it vital to monitor daily fluctuations for safe outdoor activities. Whether you’re soaking up the sun on the beautiful beaches or exploring the vibrant local culture, staying informed about the UV Index will help protect your skin from harmful rays and ensure a safe and enjoyable experience.

Hourly UV Index in Parnaiba

The UV Index throughout the day showcases a dramatic rise and fall in sun exposure. Starting at a mild 1 at 07:00, it quickly escalates to reach a peak of 13 by 11:00 and 12:00, signaling optimal conditions for sun protection. As the afternoon unfolds, the index gently declines, dropping to 4 at 15:00 before tapering off to 0 by 19:00. It’s clear that the morning and early afternoon hours require caution, with UV levels hitting 11 at 10:00, urging sun safety practices like wearing sunscreen and protective clothing.

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	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 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