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
September
Weather in September
Temperature
September brings a decrease in the average high-temperature, falling from August's moderately hot 25°C (77°F) to a comfortable 19.5°C (67.1°F). The month of September records an average low-temperature of 11.3°C (52.3°F).Humidity
In September, the average relative humidity is 71%.Rainfall
In Grzymaczew, during September, the rain falls for 13.3 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, there are 163.4 rainfall days, and 454mm (17.87") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September, sunrise is at 05:59 and sunset at 19:32. On the last day of the month, sunrise is at 06:46 and sunset at 18:26 CEST.
Sunshine
In Grzymaczew, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Grzymaczew, Poland
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (15.6°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in September
Grzymaczew, Poland
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1014mbar).
Average wind speed in September
Grzymaczew, Poland
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in September
Grzymaczew, 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 (64%).
Average rainfall in September
Grzymaczew, Poland
- Average rainfall in September: 34mm
The wettest months (with the highest rainfall) are May and June (57mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Grzymaczew, Poland
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in September
Grzymaczew, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (110mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Grzymaczew, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grzymaczew, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Grzymaczew, Poland
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is June (8.7 days).
Average UV index in September
Grzymaczew, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Grzymaczew, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Grzymaczew, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).
