Last updated: July 2, 2025
Understanding the UV Index in Folegandros, Greece, is essential for safeguarding your skin and enjoying the sun responsibly. With the island's BSk climate, typical summer days can expose visitors to high UV levels, particularly during midday when the index peaks at a striking 10. By understanding these levels, you can take proactive steps to prevent sunburn and promote long-term skin health, ensuring that your time in this stunning destination is both safe and enjoyable. Stay informed and protect yourself from excessive UV exposure as you explore the breathtaking beauty of Folegandros!
As the sun rises, the UV Index begins its gentle ascent, starting at 1 at 07:00. By 09:00, it climbs to 3, hinting at the day's potential for sun exposure. The heat peaks around 12:00, reaching a blistering 9, and hits its maximum at 13:00 and 14:00, both at a high of 10—a critical time for sun safety. As the afternoon transitions to evening, the UV Index gradually dips; by 18:00, it's down to 2, and as twilight approaches, it settles back at 1 by 19:00. Plan your outdoor activities wisely to stay safe in the sun!
| 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 | 10 | 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 |
The UV Index experiences significant seasonal fluctuations, peaking during the summer months. From January to February, the index remains at a moderate level (3 to 5), allowing for a burn time of 30 minutes. As spring approaches in March, the index rises to 7 (high), reducing burn time to 25 minutes. The most critical months for UV exposure are from April to September, where the index hits 9 to 10 (very high), with a mere 15 minutes of safe exposure. October sees a decrease to 7 (high), with an increased burn time of 25 minutes, while November and December return to a moderate level of 4 and 3, respectively, allowing 30 minutes before sunburn occurs. Visitors and residents should take precautionary measures, especially in the high-risk months of April through September, by wearing sunscreen, protective clothing, and limiting sun exposure during peak hours to safeguard against harmful UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thessaloniki UVI | 3 | 4 | 6 | 7 | 9 | 10 | 9 | 9 | 7 | 6 | 4 | 2 |
| Larisa UVI | 3 | 4 | 6 | 8 | 10 | 11 | 10 | 10 | 8 | 6 | 4 | 3 |
| Patra UVI | 3 | 5 | 6 | 8 | 10 | 11 | 10 | 10 | 8 | 6 | 4 | 3 |
| Piraeus UVI | 3 | 4 | 6 | 8 | 10 | 10 | 10 | 10 | 8 | 7 | 4 | 3 |
| Athens UVI | 3 | 4 | 6 | 8 | 10 | 10 | 10 | 10 | 8 | 7 | 4 | 3 |
| Folegandros | 3 | 5 | 7 | 9 | 9 | 10 | 10 | 10 | 8 | 7 | 4 | 3 |