Last updated: May 3, 2025
In Castelli, Argentina, being aware of the UV Index is crucial for protecting your skin and maintaining overall health. Understanding UV levels helps you take proactive measures against sunburn and long-term skin damage, especially as the sun's intensity peaks during the day. Known for its Cfa climate, Castelli experiences significant UV exposure, particularly between 11:00 AM and 1:00 PM, when the index can reach as high as 7. By staying informed about UV Index readings, you can enjoy the beautiful Argentine sun safely and keep your skin healthy year-round.
The UV Index throughout the day showcases a clear pattern of increasing intensity under the sun. Starting at 07:00, the index registers a maximum of 0, indicating a safe time for outdoor activities. As the day progresses, 08:00 and 09:00 see minimal exposure, with values of 1. By 10:00, the index climbs to 3, signaling a slight rise in UV radiation. Peak exposure occurs between 12:00 and 13:00, reaching a high of 7 at 13:00—a critical time for sun safety precautions. As the afternoon rolls in, the index gradually decreases, dipping to 4 by 15:00, then to 3 by 16:00. The sun's intensity wanes further as evening approaches, with the index falling back to 1 by 17:00 and returning to 0 at 19:00. Staying sun-safe, especially during the peak hours of 12:00 to 14:00, is crucial for skin health.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 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 |
The UV Index demonstrates significant seasonal variation, with extreme risk months occurring from January to March, as well as October to December, where the UV Index consistently reaches levels between 14 and 15, leading to a very short burn time of just 10 minutes. April marks a slight decline in the UV Index to 10, categorized as very high, while May and July present intermediate high-risk periods with indexes of 7 and 6, respectively, allowing for longer burn times of 25 minutes. As visitors and residents engage in outdoor activities, it's crucial to remain vigilant during these higher UV exposure months. Protective measures, such as wearing sunscreen, hats, and protective clothing, are highly recommended, especially during late fall and winter months when UV rays can still cause significant skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Buenos Aires UVI | 14 | 13 | 11 | 7 | 5 | 4 | 4 | 6 | 8 | 10 | 13 | 14 |
| Rosario UVI | 14 | 13 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
| Mendoza UVI | 15 | 14 | 12 | 8 | 6 | 4 | 5 | 6 | 9 | 12 | 14 | 15 |
| Cordoba UVI | 15 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |
| Castelli | 14 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |