UV Index in Londrina, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Londrina, Brazil, where the warm Cfa climate brings a mix of sunny and humid days. With peak UV levels reaching an 8 around noon, it's essential to be aware of these values to protect against sunburn and maintain skin health. The risk of overexposure increases throughout the day, especially from 10 a.m. to 2 p.m., making it vital for locals to stay informed and take preventive measures against harmful ultraviolet radiation. Embrace the sun safely by staying updated on the UV Index and safeguarding your skin!

Hourly UV Index in Londrina

As the day breaks, the UV Index gradually rises, peaking at a robust 8 at 12:00 PM, signaling the sun's intensity is at its highest. Starting from a mild 1 at 07:00 AM and 08:00 AM, the UV levels steadily climb, hitting 5 by 10:00 AM. By 11:00 AM, a brisk 7 indicates that sun safety measures are essential. The intensity slightly declines after noon, tapering off to 6 at 2:00 PM, and then gradually decreases to a 4 by 3:00 PM. By evening, the UV Index drops back to a mere 1 at 5:00 PM and ultimately falls to 0 after 6:00 PM, signaling a safe return home as the sun sets. Keep this UV pattern in mind for outdoor activities to protect your skin and enjoy the day!

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 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	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Londrina

The UV Index exhibits significant seasonal variations, with extreme levels recorded from January to April and again in September to November. The highest risk months are January, February, December, and November, where the UV Index soars to 15 or higher, indicating a burn time of just 10 minutes. As spring approaches, the risk slightly decreases, peaking in April before dropping to 8 in May and settling into the high category during June and July. August sees a return to very high levels. Visitors and residents are strongly advised to take precautions during these high-risk months, including wearing protective clothing, applying sunscreen, and seeking shade to minimize exposure and reduce the risk of skin damage.

Monthly Maximum UV Index for Londrina, Brazil

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

The table above highlights how UV exposure in Londrina 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.

Londrina'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
Londrina	15	15	13	11	8	6	7	9	12	13	14	16
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