Last updated: June 2, 2025
In Jõhvi, Estonia, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding UV levels can help you prevent sunburn, maintain skin health, and enjoy the outdoors safely. With a Dfb climate, Jõhvi experiences varying UV exposure throughout the day, peaking at a level of 7 between 1:00 PM and 2:00 PM, posing significant risks if precautions aren't taken. Keeping an eye on the UV Index is essential for residents and visitors alike to make informed decisions about sun protection.
Starting the day with a gentle touch of UV rays, the UV Index reaches its peak at 1 by 7:00 AM, increasing gradually to 2 by 8:00 AM. The sun’s intensity climbs throughout the morning, hitting 3 at 9:00 AM and soaring to 4 by 10:00 AM. The midday sun brings a sharper sting, as the index soars to 6 at 11:00 AM and remains there until noon. The highest point of 7 is recorded at 1:00 PM, marking the sun's strongest hour. The intensity gradually descends in the afternoon, dipping to 6 at 2:00 PM, and maintaining this level until 3:00 PM. By 4:00 PM, it begins to decline further, reaching 5 by late afternoon. As the sun sets, the index drops swiftly, returning to 2 by 6:00 PM and settling back to a safe 1 by 7:00 PM, inviting a gentle evening respite.
| 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 | 6 | high | 25 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | 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 |
| Johvi | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |
| Paernu UVI | 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 |