Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Baltasar Brum, Uruguay, as it serves as a vital tool in protecting skin health. With a climate characterized by warm summers and a Cfa classification, the UV levels can spike, particularly during midday when they reach a maximum of 5 around noon. Being aware of these fluctuations helps to prevent sunburn and long-term skin damage, especially for those who enjoy outdoor activities. By staying informed about the UV Index, you can make smart decisions about sun protection, ensuring your time outdoors remains enjoyable and safe.
The UV Index data for the day paints a clear picture of sun intensity as the hours progress. Starting at 07:00, the index is at a comfortable 0, allowing for a worry-free morning. As we move into the 08:00 and 09:00 hours, it remains low at 1, perfect for outdoor activities. This gradual increase peaks at 12:00 and 13:00, reaching a maximum of 5, indicating that sun protection is a must during these hours. The intensity then gradually tapers off, bringing it back down to 4 at 14:00 and declining further to 0 by 19:00. Embrace the early hours, but don’t forget your sunscreen when the sun is at its zenith!
| 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 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 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 |
Throughout the year, UV Index levels show significant fluctuations, with January to March marked by extreme exposure (UV Index 15 to 12) and a quick burn time of just 10 minutes. As we move into April, the risk decreases slightly to a very high level (UV Index 9) with a 15-minute burn time, followed by a further drop in May to high (UV Index 6) and 25 minutes of burn time. The summer months—June and July—offer moderate UV levels (UV Index 4 and 5), allowing for 30 minutes of sun exposure, but the risk rises again in August (UV Index 7, high, 25 minutes). September returns to very high exposure (UV Index 9), while in October and November, the UV index returns to extreme levels (UV Index 12 and 14), with a consistent 10-minute burn time. Finally, December remains in the extreme category (UV Index 14). Visitors and residents are advised to take protective measures, especially during the high-risk months from January to March and again from October to December, by wearing sunscreen, protective clothing, and seeking shade when outdoors.
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 |
| Salto UVI | 15 | 13 | 12 | 8 | 5 | 4 | 5 | 6 | 9 | 11 | 13 | 14 |
| Baltasar Brum | 15 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 12 | 14 | 14 |
| Rivera UVI | 15 | 14 | 12 | 9 | 5 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |