UV Index in Cartagena, Chile

Last updated: June 2, 2025

In Cartagena, Chile, being aware of the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding UV levels helps prevent sunburn, reduces the risk of skin damage, and promotes overall skin health. Nestled in a Csb climate zone, Cartagena experiences distinct seasonal changes, yet the midday sun can bring elevated UV levels, particularly between 11:00 AM and 2:00 PM when the index peaks at 3. By staying informed about the UV Index, you can take simple steps to protect yourself and enjoy the beautiful coastal surroundings safely.

Hourly UV Index in Cartagena

The UV Index throughout the day reveals a gradual increase in sun intensity, peaking mid-afternoon. Starting at 0 at 07:00, the index rises to 1 by 08:00 and remains moderate at 1 for the following hour. As the sun ascends, the intensity reaches 2 by 10:00, climbing further to 3 at 11:00, sustaining this level until 14:00. After this peak, a gentle decline begins, with the index dropping to 2 at 15:00, and gradually easing back to 1 by 17:00, before retreating to 0 by 18:00. For anyone spending time outdoors, the late morning to early afternoon presents the highest UV exposure; thus, caution and sun protection are highly advisable during these 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
09:001low45 min
10:002low45 min
11:003moderate30 min
12:003moderate30 min
13:003moderate30 min
14:003moderate30 min
15:002low45 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Cartagena

The UV index exhibits significant seasonal variation, with extreme levels persisting from January to March and returning in October to November, highlighting these months as high-risk periods for skin damage, with a rapid burn time of just 10 minutes. The spring month of April marks a transition to a very high category with a slightly increased burn time of 15 minutes before tapering to moderate levels in May through July, where individuals can safely enjoy up to 30 minutes of sun exposure. However, by August, UV levels rise to high, necessitating 25 minutes of careful exposure. In September, the risk escalates again to very high before returning to extreme levels by late autumn. Residents and visitors should take precautions during high-risk months by applying sunscreen, wearing protective clothing, and seeking shade during peak sun hours to minimize UV-related health risks.

Monthly Maximum UV Index for Cartagena, Chile

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cartagena. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec141311853468111314
Data source: Statistical UV Index data for Cartagena, 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 Cartagena UV Index with Other Chile Cities

The table above highlights how UV exposure in Cartagena 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.
Cartagena'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
Cartagena141311853468111314
Puente Alto UVI1514128646811121415
Antofagasta UVI15151310867911141515