Last updated: May 3, 2025
Understanding the UV Index is essential for residents and visitors of San Miguel de Tucumán, Argentina, where the warm Cwa climate brings a mix of sun and exposure risks. As UV levels can rapidly rise throughout the day—peaking at 7 between 1 PM and 2 PM—being aware of these values is crucial for sunburn prevention and maintaining long-term skin health. Recognizing UV Index ratings can empower you to enjoy the beautiful outdoor lifestyle that San Miguel de Tucumán offers, while minimizing the risk of harmful skin damage. Stay informed and protect your skin!
At dawn, the UV Index starts off at 0, indicating safe sun exposure. As the morning progresses, it gradually creeps up, reaching 1 by 8:00 AM and 9:00 AM. By 10:00 AM, the sun is more assertive at 2, but it truly makes its mark between 11:00 AM and 1:00 PM, spiking to a peak of 7 by 1:00 PM—a signal for sun safety measures. The UV intensity begins to wane as the afternoon rolls in, dropping to 5 by 3:00 PM and falling further to 1 by 6:00 PM. Finally, by 7:00 PM, the UV Index returns to 0, marking the end of a day where midday vigilance was key to enjoying the sun safely.
| 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 | 2 | low | 45 min |
| 11:00 | 4 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | 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 exhibits significant seasonal variations, with the highest risk occurring during the winter and early spring months of January through March, where the index hovers between 14 to 15 and is categorized as extreme, allowing for a burn time of just 10 minutes. November and December also remain critical months with an index of 15, emphasizing the need for protective measures. As spring approaches into April and September, the UV Index drops to 10—still within the very high exposure category, with a burn time of 15 minutes. Moving into the summer, from May to August, the risk reduces somewhat with indices of 7 to 6, categorized as high to moderate, allowing for slightly longer safe exposure times. Visitors and residents should take priority in protecting their skin, particularly during high-risk months—applying sunscreen, wearing protective clothing, and seeking shade—especially in those extreme months for their safety.
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 |
| San Miguel de Tucuman | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |