Last updated: July 2, 2025
In Grunwald, Poland, being mindful of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels can help you prevent sunburn and reduce the risk of skin damage, especially during the peak hours when the index reaches up to 8 between 12:00 PM and 1:00 PM. The climate in Grunwald, which falls under the Cfb zone, presents unique exposure risks that can lead to increased UV radiation during the sunnier months. By staying informed about the daily UV Index, you can enjoy the outdoors safely while safeguarding your skin from harmful rays.
Starting your day at dawn, the UV Index rises steadily from a low of 1 at 07:00 and picks up momentum as the sun climbs higher. By 10:00, it reaches 5, but the real intensity kicks in as midday approaches. At 12:00, the index hits its peak at a striking 8, and remains high at 8 until 13:00. After that, a gentle decline begins, dropping to 7 at 14:00 and tapering off further to 6 by 15:00. As the day winds down, UV levels decrease to 4 at 16:00, and then to a mellow 2 by 18:00. Finally, by 19:00, it settles back down to a comforting 1, marking the end of another sun-filled day. Remember to protect yourself during the peak hours, especially between 11:00 and 13:00, when UV radiation is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | 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, the UV Index exhibits notable seasonal changes that reflect shifts in sun exposure. January and February are considered low risk months, with an index of 1-2 and a burn time of 45 minutes. However, as spring approaches, March and April move into the moderate category with an index of 4-5 and a decreased burn time of 30 minutes. The risk escalates significantly in May and June, reaching high (UV Index 6) and very high levels (UV Index 8), with just 15 minutes of unprotected exposure leading to potential skin damage. July continues this trend with similar UV intensity. In August, the index slightly lowers to 7, but still maintains a high risk level. The fall months of September and October see a return to moderate conditions with still significant burn times of 30 minutes. Finally, November and December again present low risk, echoing the start of the year. To ensure safety, it is essential for visitors and residents to be vigilant, especially during the high-risk months of May through August, by using sun protection measures like sunscreen, hats, and protective clothing when outdoors.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grunwald | 1 | 2 | 4 | 5 | 6 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Warsaw UVI | 1 | 2 | 4 | 5 | 6 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Poznan UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Lodz UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Wroclaw UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Krakow UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |