UV Index in Rancagua, Chile

Last updated: August 1, 2025

Understanding the UV Index in Rancagua, Chile is crucial for protecting your skin and overall health. With UV levels peaking at 4 during midday, being aware of these fluctuations can help you prevent sunburn and reduce long-term skin damage. Rancagua's temperate climate, characterized by mild summers, still carries significant UV exposure risks, especially during the midday hours when the sun is most intense. Staying informed about the UV Index not only promotes safer outdoor activities but also enhances your overall well-being. Stay vigilant and enjoy the sun wisely!

Hourly UV Index in Rancagua

The UV Index today starts low, with maximum values reaching 0 by 7:00 AM. As the sun rises, it gradually climbs to 1 at 8:00 AM and stays steady until 9:00 AM. By 10:00 AM, the index jumps to 2, marking the onset of more direct sunlight. The UV exposure peaks at 4 from 12:00 PM to 14:00 PM, signaling a critical time for sun protection. Following this peak, it dips back to 2 at 15:00 PM before easing further to 1 by 16:00 PM. Finally, the day wraps up with 0 UV exposure by 19:00 PM, making the late afternoon a much safer time for outdoor activities. Don't forget to apply sunscreen during the midday 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.
TimeUVICategoryTime to Burn
07:000low45 min
08:001low45 min
09:002low45 min
10:003moderate30 min
11:005moderate30 min
12:006high25 min
13:006high25 min
14:005moderate30 min
15:003moderate30 min
16:002low45 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Rancagua

The UV Index exhibits significant seasonal fluctuations, with January, February, March, October, November, and December classified as high-risk months due to extreme levels, where a mere 10 minutes of exposure can lead to sunburn. April transitions to very high exposure with a 15-minute burn time, while May and June see a drop to moderate levels, allowing for safer exposure of 30 minutes. As summer progresses, July maintains a moderate index, but the risk increases again in August with a high category and a burn time of 25 minutes. September returns to very high levels, emphasizing caution. Visitors and residents should exercise heightened vigilance during these high-risk months by applying sunscreen, wearing protective clothing, and seeking shade, particularly from late fall through early spring when UV exposure remains dangerously high.

Monthly Maximum UV Index for Rancagua, Chile

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Rancagua. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec141311854468111314
Data source: Statistical UV Index data for Rancagua, 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 Rancagua UV Index with Other Chile Cities

The table above highlights how UV exposure in Rancagua 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.
Rancagua'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
Rancagua141311854468111314
Puente Alto UVI1514128646811121415
Antofagasta UVI15151310867911141515