Last updated: May 3, 2025
In Pärnu, Estonia, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels can help residents and visitors alike enjoy the sun safely, especially during peak hours when UV radiation can reach a maximum index of 5 around midday. The city's Dfb climate brings moderate UV exposure risks, particularly in the summer months when the sun is more intense. By keeping an eye on the UV Index, you can take proactive steps to protect your skin and enjoy Pärnu's beautiful sunny days without worry!
The UV Index today showcases a gradual climb in intensity as the day unfolds, beginning at a gentle 1 at 07:00 and 08:00. By 09:00, it barely nudges to 2, but at 10:00 it ramps up to 3, signaling a noteworthy increase in sun exposure. This trend escalates through midday, peaking at 5 from 12:00 to 14:00, indicating a higher risk of harm from unprotected sun exposure. As the afternoon wanes, the index gradually descends, falling back to 4 by 16:00 and tapering to 3 at 17:00. In the early evening, it continues to decline, returning to a safer 2 by 18:00 and dropping to 1 after 19:00. Be mindful of the sun’s potent rays during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | 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 | 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 experiences notable seasonal fluctuations, peaking during the summer months. From January to February, the index remains low (1-2), allowing for a burn time of 45 minutes without substantial risk. As spring arrives in March and April, the index rises to a moderate level (3-4), decreasing the burn time to 30 minutes. The summer months of June and July are particularly high-risk, with UV levels reaching 7; it’s crucial for visitors and residents to limit sun exposure to just 25 minutes during this time. August sees a slight decrease to 6, but caution remains essential. As fall approaches, the index drops back to moderate (4 in September) and again to low levels (2-1) from October to December, allowing for longer safe exposure times of 45 minutes. Visitors and residents are strongly advised to protect themselves during high-risk months (June to August) with proper clothing, sunscreen, and shade, while maintaining awareness of changing UV levels throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn UVI | 1 | 1 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Kohtla-Jaerve UVI | 1 | 1 | 3 | 4 | 5 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |
| Narva UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |
| Paernu | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |
| Tartu UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |