Last updated: May 3, 2025
In Merijaervi, Finland, being aware of the UV Index is crucial for protecting your skin and maintaining overall health. Understanding UV levels helps residents and visitors alike to prevent sunburn and long-term skin damage, especially during the sunnier months. Characterized by a Dfc climate, Merijaervi experiences distinct seasonal variations that can lead to unexpected UV exposure risks. With midday UV Index levels peaking at 5, it's essential to stay informed and take appropriate sun safety measures while enjoying the beautiful Finnish outdoors.
As the sun rises, the UV Index begins its climb, starting at a modest 1 at 7:00 AM. By 11:00 AM, it peaks at 4, signaling a steady increase in intensity. The midday sun reaches its zenith at 12:00 PM, with the UV Index hitting 5, a reminder to stay protected. The levels remain consistent at 5 from 12:00 PM to 2:00 PM, offering a perfect window for sun enthusiasts while also emphasizing the importance of sunscreen. As the afternoon wanes, the index gracefully decreases, settling at 3 by 4:00 PM and continuing to drop until it returns to 1 by 7:00 PM. This data highlights the dynamic nature of UV exposure throughout the day, urging us to enjoy the sunshine while remaining mindful of our skin protection.
| 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 | 3 | moderate | 30 min |
| 11:00 | 4 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits noticeable seasonal changes that impact exposure risk for both visitors and residents. From January to February, the UV Index remains low at 1, allowing for safe outdoor activities with a burn time of 45 minutes. As spring approaches, March to April sees an increase to a moderate UV Index of 3 and 4 respectively, with a reduced burn time of 30 minutes. The high-risk months are June and July, when the UV Index peaks at 6, necessitating caution as burn time drops to just 25 minutes. In late summer, the UV Index decreases to 4 in August and 3 in September, returning to moderate levels, followed by a return to low levels from October to December with a UV Index of 1 and a burn time of 45 minutes. Visitors and residents should wear sunscreen and protective clothing during moderate to high UV Index months, particularly in summer, to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Merijaervi | 1 | 1 | 3 | 4 | 5 | 6 | 6 | 4 | 3 | 2 | 1 | 1 |
| Tampere UVI | 1 | 1 | 3 | 4 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 |
| Vantaa UVI | 1 | 1 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Espoo UVI | 1 | 1 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Helsinki UVI | 1 | 1 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Turku UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |