Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from an agreeable 22.8°C (73°F) in August to an enjoyable 17.9°C (64.2°F). In September, Sierakowo Słupskie experiences a temperature dip to an average of 11.8°C (53.2°F) at night.Humidity
The average relative humidity in September in Sierakowo Słupskie is 75%.Rainfall
In Sierakowo Słupskie, during September, the rain falls for 11.1 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, there are 129.2 rainfall days, and 353mm (13.9") of precipitation is accumulated.Snowfall
In Sierakowo Słupskie, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 43min.On the first day of September in Sierakowo Słupskie, sunrise is at 06:00 and sunset at 19:43. On the last day of the month, sunrise is at 06:53 and sunset at 18:30 CEST.
Sunshine
The average sunshine in September in Sierakowo Słupskie is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Act with care - The need to guard against sun damage is communicated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What are September temperatures in Sierakowo Słupskie?
What is the average humidity in September in Sierakowo Słupskie?
How many days does it rain in September in Sierakowo Słupskie?
When it does not snow in Sierakowo Słupskie?
How many hours of daylight does Sierakowo Słupskie have in September?
What time are sunrise and sunset in September in Sierakowo Słupskie?
How many hours of sunshine does Sierakowo Słupskie have in September?
How high is the UV index in September in Sierakowo Słupskie?
Average temperature in September
Sierakowo Słupskie, Poland
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-1.7°C).
Average pressure in September
Sierakowo Słupskie, Poland
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is October (1016.3mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in September
Sierakowo Słupskie, Poland
- Average wind speed in September: 15.5km/h
The windiest month (with the highest average wind speed) is December (19.4km/h).
The calmest month (with the lowest average wind speed) is August (13.9km/h).
Average humidity in September
Sierakowo Słupskie, Poland
- Average humidity in September: 75%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Sierakowo Słupskie, Poland
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (38mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Sierakowo Słupskie, Poland
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is April (8 days).
Average snowfall in September
Sierakowo Słupskie, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (72mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Sierakowo Słupskie, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sierakowo Słupskie, Poland
- Average daylight in September: 12h and 4min
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: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 2h and 48min).
Average sunshine days in September
Sierakowo Słupskie, Poland
- Average sunshine days in September: 17.1 days
The months with the most sunshine days are April and May (19.8 days).
The month with the least sunshine days is December (12 days).
Average UV index in September
Sierakowo Słupskie, Poland
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Sierakowo Słupskie, Poland
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Sierakowo Słupskie, Poland
- Average visibility in September: 10km
The months with the highest visibility are April, June, August, September and October (10km).
The months with the lowest visibility are January, February, March, May, July, November and December (9km).
Sierakowo Słupskie, Poland
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