Last updated: August 1, 2025
Understanding the UV Index is crucial for the residents of Guichón, Uruguay, where the climate is characterized by hot summers and mild winters. With UV levels peaking during midday hours, being aware of these fluctuations is essential for preventing sunburn and protecting your skin health. Even when the UV Index is low during early mornings and late afternoons, Guichón's sunny disposition can still pose a risk. By keeping an eye on the UV Index, you can enjoy the beautiful weather while taking the necessary precautions to shield yourself from harmful radiation.
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 |
Guichon | 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 |