Last updated: August 1, 2025
Understanding the UV Index in Merinos, Uruguay is crucial for protecting your skin and maintaining overall health. With UV levels varying throughout the day, being aware of these changes helps prevent sunburn and long-term skin damage. Merinos experiences a Cfa climate, characterized by warm summers and adequate sunshine, making it vital for residents and visitors alike to monitor their UV exposure, especially during peak hours when the index can reach up to 4. Stay protected and enjoy the sun safely by staying informed about the UV Index in your area!
At dawn, the UV Index remains nonexistent until 8:00 AM, when it registers a low 1, gradually climbing as the day unfolds. By 10:00 AM, it reaches 2, and as the sun reaches its zenith at 12:00 PM, the index peaks at a moderate 4. This peak is maintained until 2:00 PM, where the sun’s intensity persists, before gradually tapering off in the afternoon. At 3:00 PM, the UV Index drops back down to 3, continuing its decline to 1 by 5:00 PM, and ultimately settling back to 0 by 6:00 PM. As evening approaches, the UV radiation fades, highlighting the importance of sun protection during those midday hours when it’s most potent.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 min |
10:00 | 3 | moderate | 30 min |
11:00 | 5 | moderate | 30 min |
12:00 | 6 | high | 25 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 experiences significant fluctuations throughout the year, with high-risk months typically occurring between January and March and returning in October and November, all classified as having an extreme exposure category and a rapid burn time of just 10 minutes. April marks a transition to a very high index, making it essential for outdoor activity precautions. As the index moderates in the warmer months of May to July with a category ranging from moderate to high, the burn time increases, allowing for more prolonged exposure. However, August and September see a return to a very high level in September, reminding residents and visitors to remain vigilant. To minimize the risk of sunburn and long-term skin damage, it is crucial to wear protective clothing, apply sunscreen regularly, and seek shade, particularly during the hours of peak UV intensity.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Las Piedras UVI | 14 | 13 | 11 | 7 | 5 | 3 | 4 | 6 | 8 | 10 | 13 | 14 |
Montevideo UVI | 14 | 13 | 11 | 7 | 5 | 3 | 4 | 6 | 8 | 10 | 13 | 14 |
Paysandu UVI | 15 | 13 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
Merinos | 15 | 13 | 12 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
Salto UVI | 15 | 13 | 12 | 8 | 5 | 4 | 5 | 6 | 9 | 11 | 13 | 14 |
Rivera UVI | 15 | 14 | 12 | 9 | 5 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |