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
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from an agreeable 22.5°C (72.5°F) in August to an enjoyable 17.8°C (64°F). Grabowo Kościerskie, in September, experiences an average temperature of 11.4°C (52.5°F) at night.Humidity
In September, the average relative humidity is 75%.Rainfall
In Grabowo Kościerskie, during September, the rain falls for 15.7 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, in Grabowo Kościerskie, there are 172.5 rainfall days, and 497mm (19.57") of precipitation is accumulated.Snowfall
In Grabowo Kościerskie, Poland, snow does not fall in June through September.Daylight
In September, the average length of the day in Grabowo Kościerskie is 12h and 42min.On the first day of September, sunrise is at 05:56 and sunset at 19:38. On the last day of the month, sunrise is at 06:48 and sunset at 18:25 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
In September, the average daily maximum UV index in Grabowo Kościerskie is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grabowo Kościerskie in September?
What is the average humidity in September in Grabowo Kościerskie?
How many days does it rain in September in Grabowo Kościerskie?
When it does not snow in Grabowo Kościerskie?
Does it snow in Grabowo Kościerskie in September?
What is the average length of the day in September in Grabowo Kościerskie?
When is the sunrise / sunset in September in Grabowo Kościerskie?
How long on average sun shines in September in Grabowo Kościerskie?
How high is the UV index in September in Grabowo Kościerskie?
Average temperature in September
Grabowo Kościerskie, Poland
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-2.4°C).
Average pressure in September
Grabowo Kościerskie, Poland
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is October (1016.6mbar).
The months with the lowest atmospheric pressure are July and December (1013.2mbar).
Average wind speed in September
Grabowo Kościerskie, Poland
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in September
Grabowo Kościerskie, Poland
- Average humidity in September: 75%
The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Grabowo Kościerskie, Poland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Grabowo Kościerskie, Poland
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Grabowo Kościerskie, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (128mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grabowo Kościerskie, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grabowo Kościerskie, 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 30min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Grabowo Kościerskie, Poland
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is April (15 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in September
Grabowo Kościerskie, Poland
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Grabowo Kościerskie, Poland
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Grabowo Kościerskie, Poland
- Average visibility in September: 10km
The months with the highest visibility are June, August and September (10km).
The months with the lowest visibility are January and February (8km).
Grabowo Kościerskie, Poland
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