Last updated: July 2, 2025
Understanding the UV Index in Ii, Finland is crucial for protecting your skin and overall health. With varying UV levels throughout the day, awareness helps prevent sunburn and long-term skin damage, particularly during the summer months when the sun's intensity peaks. In this Dfc climate zone, residents and visitors should be mindful of their exposure, especially between 11:00 AM and 1:00 PM when the UV Index can reach levels of 5 to 6. By keeping an eye on the UV Index, you can enjoy the outdoors safely while taking proactive steps to safeguard your skin health.
As the sun rises, the UV Index gradually climbs, starting at a modest 1 at 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a gentle increase in sun intensity. However, the real peak occurs between 11:00 AM and 1:00 PM, where the index reaches a robust 5 and then soars to 6 at 1:00 PM—the sun's fierce rays are at their most potent. Afterward, the index begins to decline gradually, dropping back to 5 by 2:00 PM, then diminishing steadily to 2 by 7:00 PM as the day winds down. This cycle paints a clear picture: the midday hours demand extra care to protect your skin, while early mornings and late afternoons offer a more manageable sun exposure. Remember to stay safe in the sun!
| 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 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 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 | 2 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ii | 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 |