Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Kiiminki, Finland, where the continental climate can lead to varying levels of sun exposure throughout the year. Being aware of UV levels not only helps in preventing sunburn but also plays a significant role in safeguarding long-term skin health. With daily maximum indices peaking at 6 during the summer months, it’s essential to appreciate the risks associated with UV radiation—especially during midday hours when exposure is at its highest. By staying informed about the UV Index, you can enjoy the beautiful Finnish outdoors while protecting your skin from potential harm.
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 |
During the year, the UV Index varies significantly, indicating fluctuating levels of sun exposure risk. From January to February, the UV Index remains low at 1, with a burn time of 45 minutes, making it relatively safe for outdoor activities. As spring approaches, the index rises to 2 in March and reaches 3 in April, transitioning into the moderate category with a burn time of 30 minutes. The high-risk months occur in June and July, when the UV Index peaks at 6, necessitating cautious sun exposure, since the burn time is reduced to just 25 minutes. In August, the UV Index decreases slightly to 4, followed by a gradual decline to 3 in September and 2 in October. By November and December, the UV Index drops back to 1, again allowing for 45 minutes of safe exposure. Visitors and residents are advised to take greater precautions during the summer months and to use sunscreen, wear protective clothing, and seek shade, especially during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kiiminki | 1 | 1 | 2 | 3 | 4 | 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 |