Last updated: July 2, 2025
In Gytheio, Greece, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding UV levels is not just about avoiding painful sunburn; it plays a vital role in maintaining overall skin health and preventing long-term damage. With a Mediterranean climate that typically sees high UV levels, especially during midday hours when the index peaks at 10, residents and visitors need to be proactive about sun safety. Monitoring the UV Index can help you enjoy the beautiful Greek sun while safeguarding your skin against its intense rays.
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 |
| Gytheio | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 10 | 8 | 7 | 4 | 3 |