Last updated: July 2, 2025
In Katakolo, Greece, understanding the UV Index is crucial for ensuring your health and safety under the sun. With UV levels soaring to a peak of 10 during midday, awareness of potential risks is essential for preventing sunburn and maintaining skin health. The Mediterranean climate of Katakolo offers picturesque days but also exposes you to higher UV radiation, particularly in the summer months. By keeping an eye on the UV Index, you can enjoy the sun responsibly and protect your skin from harmful effects.
The UV Index (UVI) follows a distinct pattern throughout the day, starting from a low of 1 at 07:00 and 08:00. As the sun rises higher, the intensity increases, reaching 2 by 09:00. The real surge occurs between 10:00 and 13:00, where it climbs sharply to its peak of 10 at 13:00 and 14:00, indicating extremely high levels of UV radiation. As the afternoon wanes, the index gradually decreases, dropping to 4 by 17:00, then settling back to a comfortable 1 by 19:00. For those enjoying outdoor activities, it’s crucial to take precautions between 11:00 and 15:00 when the UVI is at its highest.
| 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 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index shows significant seasonal changes, reaching its peak during the summer months. From January to February, UV levels are moderate, with a burn time of 30 minutes. As spring approaches, March sees an increase to a high index of 6, decreasing burn time to 25 minutes. April to August are considered high-risk, featuring very high UV levels of 8 to 10 and a burn time of just 15 minutes, making sun protection essential during these months. In September, the UV Index drops slightly to 8, while in October, it remains high at 7 with a burn time of 25 minutes. The UV levels then decline again in late fall and winter, returning to moderate levels of 3 to 4 by November and December. Visitors and residents are advised to take extra precautions during April to August, including wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize the risk of UV exposure and 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 |
| Katakolo | 3 | 5 | 6 | 8 | 9 | 10 | 10 | 10 | 8 | 7 | 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 |