Last updated: June 2, 2025
Understanding the UV Index is crucial for anyone enjoying the sun-soaked beauty of Praia da Graciosa, Portugal. With its mild Csb climate and delightful coastal scenery, Praia da Graciosa invites outdoor activities, but awareness of UV radiation levels is vital to keep skin healthy and prevent painful sunburns. Throughout the day, especially between 11 AM and 3 PM, UV levels can soar to a maximum of 11 – a level that signifies an urgent need for sun protection. By embracing this knowledge, you ensure that your sun-soaked adventures remain enjoyable and safe!
Experience the daily rise and fall of the UV Index with remarkable clarity! As the sun climbs higher in the sky, the UV Index starts at a mild 1 at 07:00 and 08:00, making it a safe time for morning activities. However, watch as it surges to 4 by 10:00, reaching its peak at a striking 11 between 13:00 and 14:00—a reminder to embrace sun protection. The afternoon sun commands respect as it gradually dips to 10 at 15:00, before easing into the evening with readings of 8 at 16:00, 6 at 17:00, and finally settling to a gentle 2 by 19:00. Stay safe and enjoy your time under 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 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 6 | high | 25 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 |