Last updated: May 3, 2025
In Calchaquí, Argentina, being aware of the UV Index is crucial for safeguarding your skin's health. Understanding UV levels can significantly aid in sunburn prevention and reducing the risk of long-term skin damage, especially during the hottest parts of the day. With a Cfa climate, locals can often enjoy sunny weather, but this also means heightened exposure to UV rays—reaching a peak index of 6 around midday. By staying informed about the UV Index, residents and visitors can take proactive measures to protect themselves from harmful effects, ensuring they can bask in the sun safely.
The UV Index data presents a fascinating glimpse into the day's sun exposure. The morning begins with a calm UV Index of 0 at 7:00 AM, gradually rising to a mild 1 by 8:00 AM and 9:00 AM. As the sun climbs higher, the index reaches 3 by 10:00 AM and peaks at a robust 6 at 1:00 PM, indicating the strongest sun intensity. The intensity starts to wane in the afternoon, dropping back to 5 at 2:00 PM and 4 by 3:00 PM. As evening approaches, the UV levels dip to 2 at 4:00 PM, before settling at 1 by 5:00 PM and tapering off to 0 by 7:00 PM. This data underscores the importance of sun safety during midday hours when the UV radiation is at its highest.
| 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 | 4 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 4 | moderate | 30 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 |
The UV Index reveals significant seasonal variations in sun exposure, with the highest risk months occurring from January to March and November to December, where the index consistently falls within the extreme category (UV Index 14-15) and a mere 10 minutes of unprotected skin exposure can lead to burns. In contrast, April marks a transition to very high exposure (UV Index 9), allowing for 15 minutes before sunburn sets in, while May through July see a slight decrease in UV intensity, with May being high (UV Index 6) and a burn time of 25 minutes, and June and July maintaining moderate levels (UV Index 5, 30 minutes burnout). As summer fades into fall, August and September return to high and very high risk (UV Index 7-9, 15-25 minutes), suggesting that careful sun protection is vital, especially during these months. It's essential for both residents and visitors to remain vigilant about sun safety, particularly in high-risk months when exposure can quickly lead to skin damage. Regular application of sunscreen, wearing protective clothing, and seeking shade can significantly mitigate the risks associated with harmful UV rays.
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 |
| Calchaqui | 15 | 13 | 12 | 9 | 6 | 5 | 5 | 7 | 9 | 12 | 14 | 14 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |