Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Vlachiotis, Greece, particularly given its warm climate and sunny disposition. High UV levels can lead to sunburns and long-term skin health issues, making it vital to stay informed. As the UV Index peaks during the midday hours, reaching an alarming 10 between 1:00 PM and 2:00 PM, awareness of these levels allows you to take necessary precautions to protect your skin. With typical Mediterranean weather amplifying UV exposure risks, being knowledgeable about daily UV levels is your best defense against sun damage while enjoying the beautiful surroundings of Vlachiotis.
The UV Index chart reveals a dynamic daily pattern of solar intensity. Starting early in the day, the UV Index remains low, peaking at 1 by 08:00. However, as the sun reaches its zenith, the index surges dramatically—hitting 7 by 11:00 and soaring to a maximum of 10 between 13:00 and 14:00. This signals a critical window for sun exposure, where protection is essential. As the afternoon progresses, the UV levels begin to decline, dropping to 4 by 17:00, before tapering off to 1 again by evening. To stay safe, it's vital to be cautious during those peak 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 | 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 displays significant seasonal changes, with high-risk months typically occurring from March to September. During these months, particularly in April to June, the UV Index reaches peaks, with values of 9 to 11, indicating a very high to extreme exposure category and a burn time noticeably reduced to just 10-15 minutes. Visitors and residents should be especially cautious during these times, avoiding excessive sun exposure and applying sunscreen regularly. In contrast, winter months like January, February, and December feature a moderate UV Index of 3-5, allowing for safer outdoor activities but still necessitating protective measures. For optimal sun safety, it is crucial to remain vigilant during high UV Index months, seeking shade, wearing protective clothing, and reapplying sunscreen frequently.
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 |
| Vlachiotis | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 10 | 8 | 7 | 4 | 3 |