Last updated: July 2, 2025
In Kajaani, Finland, staying informed about the UV Index is crucial for protecting your skin during the sunniest months of the year. Understanding UV levels helps in preventing sunburn and maintaining long-term skin health, particularly in a climate like Kajaani's, characterized by its Dfc classification. Here, UV exposure can vary significantly throughout the day, peaking at a level of 6 between noon and 2 PM. Being aware of these fluctuations empowers residents and visitors alike to take necessary precautions and enjoy the outdoors safely.
The UV Index throughout the day presents a clear peak in intensity, rising steadily from a gentle 1 at 07:00 to an assertive maximum of 6 between 12:00 and 14:00. This midday surge emphasizes the importance of sun protection, as the index then gracefully descends back to 1 by 19:00. From 08:00 to 11:00, values increase moderately, showcasing an inviting morning glow, while midday hours certainly warrant caution as the sun reaches its zenith. After 15:00, a gradual decline signals a retreat of UV intensity, allowing a more relaxed late afternoon. Armed with this timely information, outdoor enthusiasts can plan their activities with sun safety in mind!
| 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 | 6 | high | 25 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 |
The UV Index fluctuates seasonally, reflecting changes in sun strength and associated risk levels throughout the year. January through March sees low UV levels (1-2) with a burn time of 45 minutes. As spring approaches, April and May experience an increase to moderate exposure (4-5), reducing burn time to 30 minutes. The risk peaks in June and July, where the UV Index reaches 6, categorizing it as high risk, with a burn time of just 25 minutes. This is followed by a slight decrease in August (UV Index 5) and September (UV Index 3), both retaining moderate exposure. By October to December, levels fall back to low (1-2), allowing for a safer burn time of 45 minutes. Visitors and residents should exercise caution and use sun protection during high-risk months (June and July), while maintaining awareness of changing UV levels throughout the year to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kajaani | 1 | 1 | 2 | 4 | 5 | 6 | 6 | 5 | 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 |