UV Index in Puente Alto, Chile

Last updated: June 2, 2025

In the vibrant region of Puente Alto, Chile, understanding the UV Index is essential for protecting your skin and overall health. With the city’s climate characterized by a Mediterranean influence (Csb zone), residents face unique challenges when it comes to sun exposure. The UV levels can peak significantly during midday hours, making awareness crucial for preventing sunburn and long-term skin damage. By keeping an eye on the UV Index throughout the day, you can take proactive steps to enjoy the sun safely, especially between 11:00 AM and 1:00 PM when the index often reaches levels 4, indicating a moderate risk of harm from unprotected sun exposure.

Hourly UV Index in Puente Alto

As the sun rises, the UV Index begins at a maximum of 0 at 07:00, indicating a low risk for sun exposure. By 08:00 and 09:00, it gradually climbs to 1, maintaining a safe level. The intensity peaks between 10:00 and 13:00, reaching 4—a reminder to protect your skin during these hours. By 14:00, the index dips slightly to 3, still suggesting caution, before it declines further in the late afternoon to 2 at 15:00 and remains at 1 through 16:00 and 17:00. The day winds down with the UV Index dropping back to 0 by 18:00, marking a safe end to sun exposure for the day. Enjoy the sunshine, but remember to stay protected when the UV rays are strongest!

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.
TimeUVICategoryTime to Burn
07:000low45 min
08:001low45 min
09:001low45 min
10:002low45 min
11:004moderate30 min
12:004moderate30 min
13:004moderate30 min
14:003moderate30 min
15:002low45 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Puente Alto

The UV Index demonstrates significant seasonal changes, with extreme readings from January to March and again in September through November, indicating a heightened risk for sunburn during these months. Notably, January and December both reach an index of 15, while February and November register 14, making them the highest-risk months. As the year progresses, April and August are classified as very high (UV index 8), while May and July are categorized as high (UV index 6). During periods of extreme and very high exposure, burn times are dangerously short—only 10 to 15 minutes—which underscores the necessity for vigilant sun protection. Residents and visitors are strongly advised to adopt protective measures, including wearing sunscreen, hats, and UV-blocking clothing, particularly during the peak months to mitigate the risks associated with high UV exposure.

Monthly Maximum UV Index for Puente Alto, Chile

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Puente Alto. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec1514128646811121415
Data source: Statistical UV Index data for Puente Alto, 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 Puente Alto UV Index with Other Chile Cities

The table above highlights how UV exposure in Puente Alto compares to other major locations across Chile. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Puente Alto's solar exposure compared to other cities in Chile. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Santiago UVI141211753468111214
Valparaiso UVI141211854468111214
Vina del Mar UVI141211854468111214
Puente Alto1514128646811121415
Antofagasta UVI15151310867911141515