Last updated: May 3, 2025
In Kalajoki, Finland, understanding the UV Index is crucial for protecting your skin and overall health. With the potential for sunburn and long-term skin damage, being aware of UV levels enables residents and visitors alike to take appropriate precautions during sunny days. Kalajoki's Dfc climate means that while summer days can bring pleasant warmth, UV exposure can become significant, particularly between 11 AM and 2 PM, when the index peaks at levels 4 and 5. By staying informed about the UV Index, you can enjoy the beauty of Kalajoki while safeguarding your skin against harmful rays.
As the day begins, the UV Index starts at a mild 1 at 7:00 AM, making for a gentle welcome to the sun. By 8:00 AM, it rises to 2, and peaks just before noon with a noticeable 5 between 12:00 PM and 2:00 PM, indicating potential harm from unprotected sun exposure. The intensity gradually starts to decline after 1:00 PM, easing back down to 4 by 3:00 PM and tapering off to 2 at 6:00 PM. As the sun begins to set, it dips back to 1 by 7:00 PM, signaling a safe end to the day's UV exposure. Remember to stay protected during peak hours!
| 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 | 4 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kalajoki | 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 |