September weather forecastSiekowo, Poland
September
Weather in September
September, the first month of the autumn in Siekowo, is still a comfortable month, with temperature in the range of an average low of 11.4°C (52.5°F) and an average high of 19.6°C (67.3°F).Temperature
September ushers in a slight temperature change, with average high-temperatures reducing from August's warm 25.3°C (77.5°F) to an enjoyable 19.6°C (67.3°F). Throughout September, Siekowo experiences a low-temperature average of 11.4°C (52.5°F).Humidity
In September, the average relative humidity in Siekowo, Poland, is 71%.Rainfall
The month with the least rainfall in Siekowo is September, when the rain falls for 7.9 days and typically collects 17mm (0.67") of precipitation.Snowfall
June through September are months without snowfall in Siekowo.Daylight
In September, the average length of the day is 12h and 39min.On the first day of September, sunrise is at 06:07 and sunset at 19:41. On the last day of the month, sunrise is at 06:54 and sunset at 18:34 CEST.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Siekowo is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siekowo, Poland
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Siekowo, Poland
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1014.3mbar).
Average wind speed in September
Siekowo, Poland
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is December (13.8km/h).
The calmest months (with the lowest average wind speed) are July and August (11km/h).
Average humidity in September
Siekowo, Poland
- Average humidity in September: 71%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Siekowo, Poland
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is May (41mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in September
Siekowo, Poland
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is September (7.9 days).
Average snowfall in September
Siekowo, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (91mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Siekowo, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Siekowo, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Siekowo, Poland
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in September
Siekowo, Poland
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Siekowo, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Siekowo, Poland
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (7km).
