Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Petroto, Greece, where the Mediterranean climate can lead to intense sun exposure. With peak UV levels reaching a significant 11 around midday, awareness of these readings is essential for preventing sunburn and safeguarding skin health. As the sun's rays intensify, recognizing the risks associated with high UV exposure becomes vital for enjoying outdoor activities safely. Whether you're basking in the sun or exploring the beautiful landscapes of Petroto, staying informed about UV levels can help you protect your skin and enjoy a vibrant, sun-safe lifestyle.
As the sun climbs higher, the UV Index takes a dramatic leap throughout the day. Starting at a gentle 1 at 07:00, it gradually rises to 3 by 09:00. The real intensity kicks in later, peaking at an impressive 11 around 13:00, a critical time when sun protection is essential. From there, a gradual decline begins, with readings of 10 at 14:00, 9 at 15:00, and tapering off to 3 by 18:00. Finally, the day winds down, returning to 1 by 19:00. It’s a vivid reminder of how important it is to safeguard against UV exposure during the sun’s most potent hours!
| 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 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, influencing sun exposure levels for visitors and residents. From January to February, UV levels are moderate (3-4) with a burn time of 30 minutes, making sun protection advisable, especially for prolonged outdoor activities. A notable increase occurs in March, with the index rising to 6 (high), and this trend continues through April (8, very high) and May (10, very high), where burn times decrease to just 15 minutes. The peak occurs in June with an extreme index of 11, followed by consistently very high levels of 10 in July and August. September shows a slight drop to 8 (very high), before tapering back to 6 (high) in October. The UV Index diminishes further in November (4, moderate) and December (2, low), where extended exposure is safer with burn times of 30 and 45 minutes, respectively. It is essential for everyone to practice sun safety during high-risk months, particularly from March to September, when the potential for skin damage is greatest. Regular use of sunscreen, protective clothing, and seeking shade during peak hours is strongly recommended to minimize UV exposure.
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 |
| Petroto | 3 | 4 | 6 | 8 | 10 | 11 | 10 | 10 | 8 | 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 |