UV Index in Franca, Brazil

Last updated: August 1, 2025

Understanding the UV Index in Franca, Brazil, is crucial for safeguarding your skin health and preventing sunburn. With a climate characterized by warm summers and a distinct wet and dry season, residents and visitors alike should be aware of the varying UV levels throughout the day. From a moderate rating of 3 in the morning to a peak of 8 during midday, the risk of harmful UV exposure increases significantly. By being informed about these levels, you can take proactive measures to protect yourself and enjoy the sunny days while minimizing long-term skin damage. Stay aware, stay safe!

Hourly UV Index in Franca

At dawn, the UV Index remains low, peaking at 1 by 08:00. As the sun rises higher, a notable increase occurs, reaching 3 at 09:00 and escalating dramatically to a maximum of 8 from 12:00 to 13:00. This midday surge indicates a higher risk for sun exposure, making it essential to take precautions such as wearing sunscreen and protective clothing. The intensity then gradually declines, dropping to 4 by 15:00, and continuing its descent to 0 by 19:00, marking the end of the sun’s peak influence for the day. Stay mindful of these hourly fluctuations 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	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 Franca

Throughout the year, the UV Index fluctuates significantly, with January to April showcasing extreme levels (UV Index of 12-16) and a minimal burn time of just 10 minutes. May marks a transition to a very high exposure category (UV Index of 9) with increased burn time of 15 minutes, while June and July see a slight reduction (UV Index of 7-8) but remain high risk, with burn times of 25 and 15 minutes, respectively. As summer shifts into early autumn, August and September revert to extreme levels, prompting a return to quick burn times of 10 minutes. October and November continue to exhibit extreme UV levels, ultimately peaking again in December. Visitors and residents should exercise caution during the high-risk months, particularly from January through April and again in August through November, always using appropriate sun protection measures and seeking shade during peak hours.

Monthly Maximum UV Index for Franca, Brazil

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

The table above highlights how UV exposure in Franca 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.

Franca'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
Franca	16	16	14	12	9	7	8	11	12	14	15	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