Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Martin, Slovakia, especially in a region with a Dfb climate characterized by warm summers and cold winters. The UV Index provides valuable insight into the potential harm caused by the sun's ultraviolet (UV) rays, helping to prevent sunburn and promoting overall skin health. With peak UV levels reaching as high as 9 around midday, awareness of these fluctuations is essential for enjoying outdoor activities safely. By staying informed about UV levels, you can take necessary precautions to protect yourself and your loved ones from the risks associated with excessive sun exposure.
As the sun rises, the UV Index begins its ascent, reaching a gentle 1 at 07:00. By 08:00, it doubles to 2, slowly warming up for the day ahead. Things heat up significantly by 09:00, hitting 4, and by 10:00, it climbs to a peak of 6. The zenith arrives at 12:00, where the index stands tall at 8, and by 13:00, it reaches a sizzling 9—the highest point of the day. As the afternoon wears on, the UV intensity begins to wane, dropping to 8 at 14:00 and then to 6 at 15:00. By 16:00, it cools further to 5, retreating to 3 by 17:00. The evening brings relief as the UV Index transitions back down to 2 at 18:00 and finally returns to a mild 1 by 19:00. This hourly journey highlights the importance of sun safety, especially during those midday hours when the UV rays are at their fiercest.
| 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 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels demonstrate significant seasonal variations, impacting sun exposure safety. The high-risk months for UV exposure are from April to August, with the highest readings occurring in June and July, where the UV Index reaches 9, classified as very high, and resulting in a burn time of just 15 minutes. As spring transitions to summer, caution is advised; during these months, it’s essential for both visitors and residents to take protective measures such as wearing sunscreen, protective clothing, and seeking shade when outdoors. Conversely, the months of January, November, and December feature low UV levels, making sun protection less critical. However, as the UV Index increases from February through March, awareness of sun safety should gradually rise, particularly as activities in outdoor settings become more frequent.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Presov UVI | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Kosice UVI | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Bratislava UVI | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Nitra UVI | 2 | 3 | 5 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Martin | 2 | 3 | 5 | 6 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Zilina UVI | 2 | 3 | 5 | 6 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |