September weather forecastGrywałd, Poland
September
Weather in September
September, the first month of the autumn in Grywałd, is still a comfortable month, with temperature in the range of an average high of 16.3°C (61.3°F) and an average low of 7.1°C (44.8°F).Temperature
The onset of September comes with a shift in the average high-temperature, falling from an agreeable 21.3°C (70.3°F) in August to an enjoyable 16.3°C (61.3°F). Nighttime temperatures in September average to a chilly 7.1°C (44.8°F) in Grywałd.Humidity
In September, the average relative humidity in Grywałd is 79%.Rainfall
In Grywałd, in September, it is raining for 14.5 days, with typically 48mm (1.89") of accumulated precipitation. In Grywałd, during the entire year, the rain falls for 149.2 days and collects up to 665mm (26.18") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows in Grywałd, Poland. Throughout September, in the average 0.6 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, in Grywałd, there are 79.9 snowfall days, and 1301mm (51.22") of snow is accumulated.Daylight
In Grywałd, the average length of the day in September is 12h and 36min.On the first day of September, sunrise is at 05:55 and sunset at 19:21. On the last day of the month, sunrise is at 06:37 and sunset at 18:19 CEST.
Sunshine
The average sunshine in September in Grywałd is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grywałd, Poland
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in September: 7.1°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (-7.1°C).
Average pressure in September
Grywałd, Poland
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is June (1014.3mbar).
Average wind speed in September
Grywałd, Poland
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is March (9.8km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Grywałd, Poland
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Grywałd, Poland
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is May (109mm).
The driest month (with the least rainfall) is February (27mm).
Average rainfall days in September
Grywałd, Poland
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is June (24.5 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in September
Grywałd, Poland
- Average snowfall in September: 3mm
The month with the highest snowfall is December (248mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Grywałd, Poland
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Grywałd, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Grywałd, Poland
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (4.1 days).
Average UV index in September
Grywałd, Poland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Grywałd, Poland
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Grywałd, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, June, July, August and September (9km).
The months with the lowest visibility are January and February (6km).
