September weather forecastHel, Poland
September
Weather in September
September in Hel, Poland signals the retreat of the summer season defined by a decrease in the late summer heat, shorter daylight periods, and cooler sea temperatures. The sea, now at 17.3°C (63.1°F), undergoes a minor dip but still supports an array of water activities. Post-peak sunshine periods and a drop in temperatures, now ranging from 10.8°C (51.4°F) to 17.3°C (63.1°F), distinguish this month from August. As autumn progresses, the green foliage begins its spectacle of transitioning colors. Late summer tourism still thrives, echoing the earlier months.Temperature
The move into September in Hel, Poland, indicates a slight reduction in the average high-temperature, down from August's agreeable 21°C (69.8°F) to a refreshing 17.3°C (63.1°F). Hel throughout September, records an average low-temperature of 10.8°C (51.4°F).Rainfall
In Hel, in September, during 9.8 rainfall days, 61mm (2.4") of precipitation is typically accumulated. In Hel, Poland, during the entire year, the rain falls for 107.6 days and collects up to 574mm (22.6") of precipitation.Sea temperature
In September, the average sea temperature in Hel is 17.3°C (63.1°F).Note: Swimming is not a pleasurable activity for the majority in water at 17.3°C (63.1°F). Breathing control gets harder as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day is 12h and 43min.On the first day of the month, sunrise is at 05:52 and sunset at 19:36. On the last day of September, in Hel, sunrise is at 06:46 and sunset at 18:23 CEST.
Sunshine
The average sunshine in September is 4.8h.Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hel, Poland
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is July (21.1°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-2.7°C).
Average rainfall in September
Hel, Poland
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is August (72mm).
The driest month (with the least rainfall) is March (27mm).
Average rainfall days in September
Hel, Poland
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is November (11.4 days).
The month with the least rainy days is April (6.8 days).
Average sea temperature in September
Hel, Poland
- Average sea temperature in September: 17.3°C
The best month for swimming (with the highest average sea temperature) is August (19.1°C).
The coldest month (with the lowest average sea temperature) is March (2.2°C).
Average daylight in September /
Average sunshine in September
Hel, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 4h and 48min
The month with the most sunshine is June (Average sunshine: 8h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
