Last updated: May 3, 2025
Understanding the UV Index is essential for residents of Ostrow Mazowiecka, Poland, where sun exposure can significantly impact skin health. With a climate classified as Dfb, characterized by humid continental conditions, the potential for sunburn increases, particularly during the peak UV hours from 10 AM to 4 PM, when levels can reach as high as 6. Being aware of these UV levels not only helps in preventing painful sunburns but also supports long-term skin health by encouraging protective measures. Stay informed and protect yourself while enjoying the beautiful summers in Ostrow Mazowiecka!
As the sun rises, the UV Index begins to climb, starting at a mild 1 at 07:00. By 08:00, it reaches 2, signaling a gentle increase in exposure. The real ascent happens between 09:00 and 12:00, where it peaks at 6 around 11:00 and remains steady through 13:00 and 14:00. By 15:00, the index starts to decline, dipping back to 4, and continues to fall as the evening approaches, settling at 1 by 18:00 and beyond. This data serves as a reminder to stay sun-safe during peak hours when UV exposure is most intense, especially between 10:00 and 14:00.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal variations. From January to February, the UV Index remains low (1-2), allowing for safe outdoor activities with a burn time of approximately 45 minutes. As spring approaches, March and April see a rise to moderate levels (4-5), with a reduced burn time of 30 minutes, indicating a need for protective measures. The transition into late spring and summer brings higher risk months: May and June (UV Index 6-7, burn time 25 minutes) and the peak in July at 8, classified as very high, where incidents of sunburn can occur rapidly within 15 minutes. August sees a slight decline to a high rating (7), followed by a return to moderate levels from September to October (UV Index 5-3, burn time 30 minutes). Finally, winter months return to low UV exposure (2-1, burn time 45 minutes) from November to December. Residents and visitors are strongly advised to take caution during the high-risk summer months—especially in July—by applying sunscreen, wearing protective clothing, and minimizing sun exposure during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ostrow Mazowiecka | 1 | 2 | 4 | 5 | 6 | 7 | 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 |