Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Vilnius, Lithuania, where the climate fosters varying levels of ultraviolet exposure throughout the year. Awareness of UV levels can significantly help in preventing sunburn and protecting skin health, ensuring that you enjoy the beautiful outdoors safely. With a climate characterized as Dfb, Vilnius experiences moderate UV exposure, particularly peaking around midday when UV Index readings can reach as high as 6. Stay informed and shield yourself from harmful rays to make the most of the vibrant Lithuanian sun!
The hourly UV Index data reveals an inviting but cautionary trend throughout the day. Starting at a modest 1 at 7:00 AM, the index gradually climbs, hitting 2 by 8:00 AM and 2 again at 9:00 AM. As the sun climbs higher, it reaches 4 at 10:00 AM and peaks at 6 between 1:00 PM and 2:00 PM, indicating a time when sun protection is essential. The afternoon sees a slight dip, with readings of 5 at 11:00 AM and 12:00 PM, before tapering off to 4 by 4:00 PM, and settling back down to 1 by 7:00 PM. This pattern highlights the importance of staying vigilant about UV exposure, especially during midday hours when the risk is greatest. Remember to apply sunscreen and seek shade during those peak times!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes reveal significant fluctuations in the UV Index, influencing how individuals should protect their skin from harmful sun exposure. The high-risk months for UV radiation are primarily from May to August, where the UV Index peaks at 6 to 7, indicating a high level of exposure risk with a burn time of just 25 minutes. In contrast, the winter months from November to February exhibit low UV levels (1 to 2), allowing for longer burn times of up to 45 minutes. Residents and visitors are advised to take extra precautions during the high-risk months by wearing sunscreen, protective clothing, and seeking shade when outdoors, to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siauliai UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Panevezys UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Klaipeda UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Kaunas UVI | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Vilnius | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |