Last updated: June 2, 2025
Understanding the UV Index is crucial for the residents of Baltasar Brum, Uruguay, where the sun’s rays can pose significant risks even in a temperate climate. Monitoring UV levels is vital for preventing sunburn and enhancing overall skin health, especially during peak hours when the index reaches as high as 4 around midday. With its Cfa climate, featuring warm summers and mild winters, awareness of UV exposure plays a pivotal role in safeguarding your skin from harmful effects. Stay informed and protect yourself against UV radiation by checking the index regularly!
The UV Index throughout the day shows a gentle morning rise, starting at 0 at 07:00, then climbing to 1 by 08:00 and staying steady until it reaches 2 at 10:00. Midday brings the peak intensity, with the index soaring to 4 from 12:00 to 14:00, indicating a significant need for sun protection. As the afternoon wears on, the UV levels gradually decline, tapering back down to 1 by 16:00, before dropping to 0 after 18:00. This daily pattern highlights the importance of being mindful of UV exposure, especially between noon and early afternoon when the sun’s rays are at their strongest.
| 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 | 3 | moderate | 30 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 4 | moderate | 30 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | 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 |