Last updated: May 3, 2025
In Ydra, Greece, understanding the UV Index is essential for your sun safety, especially given the island's Mediterranean climate. With UV levels reaching as high as 10 during midday, it's crucial to be aware of the potential for sunburn and long-term skin damage. Knowledge of UV levels helps you take proactive measures to protect your skin, ensuring you enjoy the stunning sunshine without compromising your health. As you explore the beautiful landscapes of Ydra, keep an eye on the UV Index to make informed decisions and minimize exposure during peak hours.
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 |
As the seasons change, so does the UV Index, affecting the risk of sun exposure for visitors and residents. From January to February, the UV Index ranges from 3 to 5, indicating a moderate risk with a burn time of 30 minutes. The risk significantly increases from March to September, peaking at 10 during the summer months (May to August), marking a very high risk with a short burn time of just 15 minutes. As October approaches, the UV Index begins to decline to 7, while November and December return to a moderate risk with an index of 4 and 3, respectively, allowing for a safe burn time of 30 minutes. Visitors and residents are advised to take precautions during the high-risk months, particularly between April and September, by seeking shade, wearing protective clothing, and applying sunscreen regularly to prevent skin damage.
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 |
| Ydra | 3 | 5 | 7 | 8 | 10 | 10 | 10 | 10 | 8 | 7 | 4 | 3 |