Last updated: July 2, 2025
In Agios Efstratios, Greece, staying informed about the UV Index is crucial for your skin's health and overall well-being. With UV levels peaking at 10 during the hottest hours of the day, understanding these fluctuations can help you effectively prevent sunburn and long-term skin damage. Given the region's Csa climate, characterized by warm, dry summers, it's essential to be mindful of the intense solar exposure. By recognizing the daily UV trends, particularly from 11:00 AM to 2:00 PM, you can enjoy the beautiful Mediterranean sun while protecting yourself and your loved ones from its harmful effects.
As the sun rises, the UV Index gradually climbs, beginning at a mild 1 at 7:00 AM. By 9:00 AM, it reaches 3, prompting early risers to consider sun protection. The intensity peaks at 1:00 PM with a maximum of 10, signaling the most hazardous conditions for unprotected skin. As the afternoon unfolds, the index dips from 9 at 2:00 PM to 6 by 4:00 PM, offering a brief respite. As the day winds down, the UV rays decrease, falling to 2 by 6:00 PM and returning to a safe 1 by 7:00 PM. Stay mindful of these fluctuations to enjoy the sun while safeguarding your skin!
| 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 | 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 |
Throughout the year, seasonal variations in UV exposure significantly affect both residents and visitors. The UV Index begins at a moderate level in January (3) and February (4), indicating that a burn time of approximately 30 minutes is safe. As spring approaches, the UV Index rises sharply in March (7) to high, with a reduced burn time of 25 minutes. The peak UV months, from April to August, exhibit very high levels, reaching a maximum of 10 in June and July, with dangerously short burn times of just 15 minutes. As fall arrives, September sees a slight decline to an 8, and October further decreases to 6. As the year winds down, November and December return to moderate levels (4 and 3, respectively). Residents and visitors are advised to take extra precautions during the high-risk months of April to August by wearing protective clothing, using sunscreen, and seeking shade, particularly during midday hours to minimize the risk of sunburn 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 |
| Agios Efstratios | 3 | 4 | 7 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 3 |
| 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 |