Last updated: July 2, 2025
Understanding the UV Index in Hartola, Finland, is essential for anyone looking to protect their skin and overall health during the sunniest months of the year. With a climate characterized by cool summers, it might be easy to underestimate UV risks; however, even on mild days, harmful rays can lead to sunburn and long-term skin damage. The UV Index in Hartola peaks at Level 6 around midday, signifying a moderate to high risk for exposed skin. Staying informed about daily UV levels helps residents and visitors alike enjoy the outdoors safely while minimizing the impact of sun exposure.
Starting off the day, the UV Index is quite low at 07:00, peaking at 1. As the morning unfolds, it gradually rises, reaching 2 by 08:00 and climbing to 3 at 09:00. By 10:00, the intensity escalates to 4, hitting moderate levels. The sun reaches its zenith between 11:00 and 13:00, with the UV Index peaking at 6. This elevated risk remains consistent until 15:00, where it holds steady at 6. As the afternoon wanes, the intensity declines; by 16:00, it drops to 4, further decreasing to 3 at 17:00, and finally tapering off to 2 and 1 as the evening sets in at 18:00 and 19:00. Stay protected during those peak hours when the UV Index is at its highest!
| 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 | 6 | high | 25 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, UV exposure varies significantly, with a notable increase during the warmer months. January to February experience low UV levels (Index 1), allowing for a more extended burn time of 45 minutes. As spring arrives in March, the UV Index rises to 3, indicating a moderate risk, necessitating caution with an exposure limit of 30 minutes. The summer months, especially June and July, present a high-risk scenario with indexes reaching 6 and 7 respectively, where it's advised to limit sun exposure to 25 minutes to prevent skin damage. August sees a decrease to a moderate level, while September returns to a more manageable 3. As autumn transitions into winter, UV levels decrease again to low (Indexes of 1 and 2), allowing for longer safe exposure times of 45 minutes. Residents and visitors are encouraged to remain vigilant during June to July, using sunscreen and protective clothing to safeguard against harmful UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tampere UVI | 1 | 1 | 3 | 4 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 |
| Hartola | 1 | 1 | 3 | 4 | 5 | 6 | 7 | 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 |