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
September implies a gentle temperature shift, with average high-temperatures reducing from August's warm 24.7°C (76.5°F) to a refreshing 19.1°C (66.4°F). In the month of September, Gromice experiences an average low-temperature of 10.5°C (50.9°F).Humidity
The average relative humidity in September in Gromice is 72%.Rainfall
In Gromice, Poland, in September, it is raining for 9.2 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 138.8 rainfall days, and 352mm (13.86") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Gromice.Daylight
In September, the average length of the day is 12h and 40min.On the first day of the month, sunrise is at 05:51 and sunset at 19:27. On the last day of September, sunrise is at 06:39 and sunset at 18:18 CEST.
Sunshine
In Gromice, Poland, the average sunshine in September is 8h.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 the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the temperature in September in Gromice?
What is the average humidity in September in Gromice?
How much does it rain in Gromice in September?
When it does not snow in Gromice?
Does it snow in Gromice in September?
What is the average length of the day in September in Gromice?
When is the sunrise / sunset in September in Gromice?
How long on average sun shines in September in Gromice?
How high is the UV index in September in Gromice?
Average temperature in September
Gromice, Poland
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 10.5°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 (-3.6°C).
Average pressure in September
Gromice, Poland
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Gromice, Poland
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Gromice, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Gromice, Poland
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is May (51mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Gromice, Poland
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Gromice, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (81mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Gromice, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gromice, Poland
- Average daylight in September: 12h and 4min
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 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Gromice, Poland
- Average sunshine days in September: 18 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Gromice, 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 and December (UV index 1).
Average cloud cover in September
Gromice, 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 32).
Average visibility in September
Gromice, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
Gromice, Poland
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