Last updated: July 2, 2025
Living in Ialysos, Greece, means embracing the beauty of the sun-drenched Mediterranean, but it's crucial to stay informed about the UV Index to protect your skin. Understanding UV levels is vital for preventing sunburn and maintaining long-term skin health, especially during peak hours when the UV Index reaches a maximum of 10 around noon. With Ialysos' Csa climate, characterized by hot, dry summers, residents and visitors alike face increased risks of harmful UV exposure. Staying aware of these levels enables you to enjoy the sun safely while safeguarding your skin from its potent effects.
The UV Index shows a notable progression throughout the day, beginning at a minimal level of 1 at 07:00. As the sun climbs higher, the index escalates, peaking at an impressive 10 between 13:00 and 14:00—the height of sun exposure. The morning hours see gradual increases, reaching 8 by 11:00, while 12:00 features a 9, signaling a strong need for protection against harmful rays. Following the peak, the index begins to gently decline, dropping to 6 by 16:00 and down to 3 by 17:00, before winding down to 1 again by 19:00. This data serves as a crucial reminder that midday sun protection is essential for safety during the hours when UV rays are at their strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 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 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Seasonal changes in UV exposure are significant, with high-risk months occurring from March to September, where the UV Index often reaches above 7, indicating high to extreme exposure categories. Notably, June stands out with an extreme UV Index of 11, allowing for a burn time of just 10 minutes. Visitors and residents should exercise caution during these months, particularly in the peak summer months of May through August, when the burn time remains low at 15 minutes or less. It is advisable to wear protective clothing, use sunscreen, and seek shade during peak sun hours to minimize the risk of skin damage. During January and February, conditions are more moderate, but awareness should remain for potential exposure. Always check the daily UV Index to stay informed and protect your skin effectively.
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 |
| Ialysos | 3 | 5 | 7 | 8 | 10 | 11 | 10 | 10 | 8 | 7 | 4 | 3 |