Last updated: July 2, 2025
In Sierra Colorada, Argentina, staying informed about the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels can help residents and visitors alike take proactive steps to prevent sunburn and lower the risk of skin damage. Nestled in a BSk climate zone, Sierra Colorada experiences unique weather patterns that contribute to fluctuating UV exposure throughout the day. With UV Index readings peaking at 3 around midday, it’s essential to recognize when sun protection is most needed to enjoy the warm, sunny days while keeping your skin safe from harm.
The UV Index throughout the day exhibits a distinct pattern, beginning with zero exposure from 7 AM to 8 AM, ideal for outdoor morning activities without concern for sun safety. As the sun climbs higher, the index rises gradually, reaching 1 by 9 AM and 10 AM, signaling a slight increase in UV radiation. The warmth peaks around noon to 1 PM, where the index hits 3, indicating moderate exposure that calls for sun protection. By 2 PM, the index remains at this level before tapering off to 2 from 3 PM to 4 PM, and gradually descending to 1 by the late afternoon. Finally, the UV Index drops to zero again by 7 PM, allowing for a safe conclusion to the day’s activities. Remember, even during lower readings, sunscreen and protective gear are always wise companions!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 0 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 1 | low | 45 min |
| 11:00 | 2 | low | 45 min |
| 12:00 | 2 | low | 45 min |
| 13:00 | 3 | moderate | 30 min |
| 14:00 | 3 | moderate | 30 min |
| 15:00 | 2 | low | 45 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, UV exposure varies significantly, with January and December showing the highest UV Index values of 14 and falling into the extreme exposure category, necessitating careful sun protection within just 10 minutes. February and November also present high risks, with UV indices of 12 and 13, respectively. As we transition into spring, March reaches a very high exposure category at 10, with a burn time of 15 minutes. Risk decreases in April and May to high and moderate, allowing for longer safe exposure times of 25 and 30 minutes. The summer months of June, July, and August maintain a moderate index around 3-5, providing a more hospitable environment for outdoor activities. However, risks increase again in September and October, with UV indices rising to 7 and 9, indicating high and very high risks. For residents and visitors, it is crucial to be vigilant during the extreme and very high months, particularly from November to March, and to apply sun protection measures such as sunscreen, protective clothing, and seeking shade when necessary, especially during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sierra Colorada | 14 | 12 | 10 | 6 | 4 | 3 | 3 | 5 | 7 | 9 | 13 | 14 |
| 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 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |