Last updated: June 2, 2025
In Birstonas, Lithuania, staying aware of the UV Index is essential for protecting your skin and maintaining overall health. The UV Index measures the strength of UV radiation from the sun, which can lead to sunburn and long-term skin damage. Understanding these levels allows residents and visitors alike to take necessary precautions, especially during peak hours when the index peaks at 7 around noon. Birstonas, characterized by its Dfb climate, experiences varying weather, but high UV exposure is a risk during sunny days. Equip yourself with this crucial knowledge to enjoy the outdoors safely while prioritizing your skin's well-being.
The UV Index starts off mildly low at 1 at 7:00 AM, gradually climbing throughout the morning. By 10:00 AM, it reaches a moderate 4, with significant exposure risk beginning around 11:00 AM as it spikes to 6. The highest levels occur from 12:00 PM to 2:00 PM, maintaining a strong 7 during peak hours—perfect for sun enthusiasts but a cause for caution. As the afternoon progresses, the index gradually declines, dropping to 4 by 5:00 PM and further down to 1 by 7:00 PM. This reveals a clear pattern: the midday sun offers the greatest intensity, so sun safety measures are crucial during those hours.
| 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 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | 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 UVI | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Birstonas | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |