UV Index in Alexandria, Brazil

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Alexandria, Brazil, where sunny days often lead to high levels of ultraviolet radiation. Monitoring UV levels not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. Given Alexandria's tropical climate marked by intense sunlight, especially between 10 AM and 2 PM when the UV Index peaks at a critical level of 11, it's essential to stay informed and take appropriate precautions to safeguard your skin. Embrace the sun wisely!

Hourly UV Index in Alexandria

The UV Index throughout the day reveals a striking peak in intensity around midday. Beginning at a gentle 1 by 7:00 AM, the index escalates progressively, reaching a notable 11 by 11:00 AM and remaining high until 12:00 PM. As the afternoon unfolds, the intensity gradually diminishes, diving to 6 by 2:00 PM, then tapering off further to a soft 3 by 3:00 PM. By 4:00 PM and beyond, UV exposure recedes, settling back to a low 1 by 5:00 PM, and disappearing entirely after 6:00 PM. This dramatic rise and fall underscore the importance of sun safety during those 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	4	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	9	very high	15 min
14:00	6	high	25 min
15:00	3	moderate	30 min
16:00	1	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 Alexandria

During the year, the UV Index remains consistently high, reflecting extreme exposure risks for all months. From January to March, the UV Index peaks at 15, while it fluctuates between 11 and 14 in the subsequent months. April to June sees a slight decrease, but the risk remains significant, maintaining a UV Index of 11 to 14. The high-risk months are prevalent from February to November, all registering a UV index of 14 or greater. Visitors and residents are advised to take precautions, such as wearing protective clothing and using sunscreen, particularly during peak hours, as burn time is as low as 10 minutes throughout the year.

Monthly Maximum UV Index for Alexandria, Brazil

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

The table above highlights how UV exposure in Alexandria 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.

Alexandria'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
Alexandria	14	14	15	14	13	11	11	12	14	13	14	14