Last updated: July 2, 2025
In Praia da Graciosa, Portugal, understanding the UV Index is essential for maintaining skin health and preventing sunburn. With its warm climate and sunny days, this picturesque location can expose residents and visitors to varying levels of ultraviolet radiation throughout the day. During peak hours, particularly between 12 PM and 2 PM when the UV Index skyrockets to a level 10, protective measures are crucial to avoid harmful effects. By keeping an eye on local UV levels, you can enjoy the beauty of Praia da Graciosa while ensuring your skin stays safe under the sun.
As the sun rises, the UV Index begins to climb steadily throughout the morning, starting at a mild 1 at 07:00 and peaking at 10 between 13:00 and 14:00. This signifies a significant risk of harm from unprotected sun exposure, urging folks to seek shade and slather on the sunscreen. Hours 10:00 and 11:00 see a sharp increase to 4 and 6, while midday brings the highest intensity at 8 and 10, marking a crucial time for sun safety. As afternoon transitions to evening, the index gradually declines, offering some relief, landing at 3 by 18:00. By nightfall, the risk wanes, falling back to 2. Remember, keeping aware of this UV trend is vital for staying safe in the sun!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, so does the UV Index, which indicates the strength of ultraviolet radiation and the associated risk of harm from sun exposure. High-risk months for UV exposure typically occur from March through September, peaking in June with an extreme Index of 11 and a burn time of just 10 minutes. April and May are also notably hazardous, with very high UV ratings of 9 and 10 respectively. During these months, it is crucial for visitors and residents to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade during peak hours. Conversely, during the winter months of January, November, and December, the UV Index is moderate, allowing for longer exposure times of up to 30 minutes without immediate risk. Always stay informed and prioritize sun safety to enjoy the outdoors responsibly throughout the year.
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 |
| 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 |
| Praia da Graciosa | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 8 | 7 | 4 | 3 |