UV Index in San Antonio, Colombia

Last updated: July 2, 2025

Understanding the UV Index in San Antonio, Colombia is crucial for anyone who enjoys the vibrant outdoor lifestyle that the region offers. With peak UV levels reaching an impressive 12 around midday, awareness of these values is not just about preventing sunburn; it’s essential for maintaining long-term skin health. The region's tropical climate poses significant exposure risks, especially during the late morning and early afternoon hours. By staying informed about the UV Index, you can take proactive measures to safeguard your skin, ensuring that your time in the sun remains both enjoyable and safe.

Hourly UV Index in San Antonio

As the day unfolds, the UV Index rises significantly, reaching its peak at 12:00 PM with an impressive value of 12. Beginning the day at a manageable 1 at 07:00 AM, the index gradually climbs, hitting 11 by 11:00 AM and maintaining a strong 11 until 1:00 PM. Following this midday zenith, the UV levels begin to decline, dipping to 9 at 2:00 PM and further down to 6 by 3:00 PM. The late afternoon sees a gentle fall, as the index hovers back to 3 at 4:00 PM and eventually settles at 1 by 5:00 PM, wrapping up the day with no UV exposure at 7:00 PM. For those planning outdoor activities, the hours around noon present the highest risk, making protective measures essential during this sunny stretch!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Antonio

Seasonal UV changes reveal consistently high UV Index numbers throughout the year, with the peak occurring between March and May, where the UV Index reaches 14. High-risk months for UV exposure are notably from February to May, characterized by an extreme exposure category and a minimal burn time of just 10 minutes. While June to October maintain similarly high levels, December sees a slight decrease, classified as very high with a burn time of 15 minutes. To protect against harmful UV rays, it is crucial for both visitors and residents to wear protective clothing, use broad-spectrum sunscreen, and seek shade, especially during the peak hours of sun exposure.

Monthly Maximum UV Index for San Antonio, Colombia

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

The table above highlights how UV exposure in San Antonio compares to other major locations across Colombia. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

San Antonio's solar exposure compared to other cities in Colombia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barranquilla UVI	11	12	14	14	13	12	13	13	13	13	11	10
Cartagena UVI	11	11	13	15	13	13	12	13	13	13	11	10
San Antonio	11	12	14	14	14	13	12	13	13	13	11	10
Medellin UVI	14	15	17	16	16	14	14	15	14	14	13	12
Cali UVI	15	16	17	17	15	14	14	14	15	14	13	12
Bogota UVI	15	16	18	18	17	15	15	16	15	15	14	13