Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Lorvao, Portugal, where sunny days can quickly lead to increased sun exposure. The UV Index provides vital information about potential risks of sunburn and long-term skin damage, especially during peak hours when levels reach as high as 10 between 12:00 and 13:00. With a Csb climate, Lorvao enjoys warm summers that can intensify ultraviolet exposure, making it essential to monitor daily UV levels to protect skin health. Stay informed and proactive to enjoy the beautiful sun safely!
The UV Index throughout the day presents a clear narrative of rising intensity, peaking in the afternoon. Starting at 1 by 07:00, the UV levels gradually ascend, reaching 5 by 10:00. By 11:00, the index climbs to 7, and it soars to a striking 10 at 13:00—the optimal time for sun precautions. The intensity slightly wanes thereafter, dropping to 9 at 14:00 and continuing down to 4 by 17:00. As evening approaches, the UV Index dwindles to 1 by 19:00, signaling a return to safer levels. This data underscores the importance of sun safety measures during peak hours, particularly between 11:00 and 14:00.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 5 | moderate | 30 min |
11:00 | 7 | high | 25 min |
12:00 | 9 | very high | 15 min |
13:00 | 10 | very high | 15 min |
14:00 | 9 | very high | 15 min |
15:00 | 8 | very high | 15 min |
16:00 | 6 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV Index reveal significant fluctuations in sun exposure and risk levels. The months of March through September present the highest UV levels, with April through June reaching the peak UV Index of 11 in June, categorized as extreme, while May and July also remain dangerously high. High-risk months for sunburn are clearly identified as April to September, where the burn time decreases sharply to as little as 10 minutes in June. As such, it is crucial for both visitors and residents to take precautionary measures during these months. This includes wearing sunscreen, donning protective clothing, and seeking shade during peak hours, particularly from late morning to mid-afternoon, to mitigate skin damage and health risks associated with UV exposure.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Braga UVI | 2 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 2 |
Porto UVI | 2 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 2 |
Lorvao | 3 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 2 |
Amadora UVI | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
Lisbon UVI | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
Setubal UVI | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |