September weather forecastKoszalin, Poland
September
Weather in September
In September, Koszalin witnesses impending signs of autumn amidst a lingering summer aura. The weather note flips from a sizzling summer to cooler spells, foreshadowing a seasonal shift. Despite rainfall registering at 82mm (3.23") over 11.1 days, the nostalgic summer joy radiates through the prevalent daylight hours. The transformation in Koszalin's weather map makes this month captivating for amateur meteorologists and nature lovers alike.Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a pleasant 21°C (69.8°F) in August to a refreshing 17.3°C (63.1°F). Koszalin's temperature lowers to a mean of 9.5°C (49.1°F) during the nights in September.Rainfall
In Koszalin, in September, it is raining for 11.1 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, in Koszalin, there are 118.7 rainfall days, and 704mm (27.72") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 42min.On the first day of September, sunrise is at 06:04 and sunset at 19:46. On the last day of the month, sunrise is at 06:56 and sunset at 18:33 CEST.
Sunshine
In September, the average sunshine is 4.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koszalin, Poland
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average rainfall in September
Koszalin, Poland
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is July (88mm).
The driest month (with the least rainfall) is February (30mm).
Average rainfall days in September
Koszalin, Poland
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is November (12.6 days).
The month with the least rainy days is February (7.9 days).
Average daylight in September /
Average sunshine in September
Koszalin, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 4h and 30min
The month with the most sunshine is June (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average UV index in September
Koszalin, Poland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).
