UV Index in Passos, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Passos, Brazil, where the sunny climate can present significant exposure risks. Being aware of UV levels is essential not only for preventing painful sunburns but also for maintaining long-term skin health. In Passos, where the typical climate falls under zone Cwa, the UV Index can soar to 8 during the peak hours of 12 PM to 1 PM, highlighting the importance of protective measures. Stay informed to enjoy the beautiful weather safely!

Hourly UV Index in Passos

At sunrise, the UV Index starts gently at 1, peaking at 8 during the midday hours of 12:00 PM and 1:00 PM, indicating the sun's intensity is at its highest. As the day progresses, the index climbs steadily from 3 at 9:00 AM to its maximum of 7 at 11:00 AM, encouraging everyone to seek shade and wear sunscreen. By 2:00 PM, it begins to decline to 6, and continues to decrease, settling back to 1 by 5:00 PM and fading to 0 by 6:00 PM, signaling that the day is winding down. This fluctuation highlights the importance of being sun-smart during the 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	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	8	very high	15 min
14:00	6	high	25 min
15:00	3	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 Passos

The UV Index exhibits significant seasonal variability, with high-risk months occurring from January through April and in August, September, and October, where the index frequently reaches extreme levels. During these months, the UV Index ranges from 12 to 16, with a minimal burn time of just 10 minutes for unprotected skin. Notably, while May presents a slightly reduced risk with a UV Index of 9 (burn time of 15 minutes), conditions ramp back up in July with a very high index of 8. As summer transitions into fall, the UV levels return to extreme readings. Residents and visitors are advised to take protective measures during these peak times, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours to mitigate risks associated with excessive UV exposure.

Monthly Maximum UV Index for Passos, Brazil

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

The table above highlights how UV exposure in Passos 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.

Passos'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
Passos	16	16	14	12	9	7	8	11	12	14	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