Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Agios Efstratios, Greece, where sunny skies are a hallmark of the local Mediterranean climate (Csa). Being aware of the daily UV levels helps in preventing sunburn and maintaining long-term skin health, vital for enjoying the outdoors safely. With peak UV exposure often hitting a high of 9 between 1 PM and 3 PM, it’s essential to take proactive measures during these hours to shield yourself from harmful rays. Keep your skin protected and stay informed to make the most of your time in this beautiful sun-soaked island paradise!
During the early hours of the day, the UV Index remains low, peaking at 1 until 9:00 AM. As the sun rises higher, the index climbs to 5 by 10:00 AM and reaches a maximum of 9 between 1:00 PM and 2:00 PM, indicating a strong need for sun protection during these peak hours. Afterward, the UV Index gradually declines, dropping to 4 at 5:00 PM and falling back to 1 by 7:00 PM. It’s essential to stay vigilant during the midday hours when the sun is at its strongest, and remember to apply sunscreen to enjoy the outdoors safely!
| 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 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 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 |