Last updated: March 2, 2024
The weather in Grunwald, Poland, during September is characterized by an average temperature of 14°C (58°F). Highs can soar to 28°C (82°F), while lows may dip to 3°C (38°F). Typically, the humidity level in Grunwald throughout September hovers around 75%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Grunwald averages 77 mm (3.0 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 37 minutes of daylight, with the sun shining for approximately 10 hours 0 minutes each day. Additionally, there is a 38% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Grunwald reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 3 | 5 | 5 | 5 | 5 | 4 | 2 | 1 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||