September weather forecastGrylewo, Poland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Grylewo, Poland, with an average temperature ranging between max 19.1°C (66.4°F) and min 10.7°C (51.3°F).Temperature
Grylewo's weather in September involves a decrease in the average high-temperature, moving down from August's warm 24.2°C (75.6°F) to a comfortable 19.1°C (66.4°F). The temperature lowers to an average of 10.7°C (51.3°F) during September nights.Humidity
In September, the average relative humidity in Grylewo, Poland, is 74%.Rainfall
In September, in Grylewo, the rain falls for 9.1 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, in Grylewo, Poland, there are 132.7 rainfall days, and 337mm (13.27") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Grylewo, the average length of the day in September is 12h and 40min.On the first day of September, sunrise is at 06:02 and sunset at 19:39. On the last day of the month, sunrise is at 06:51 and sunset at 18:30 CEST.
Sunshine
In Grylewo, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Grylewo is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 4 in September transforms into this advice:
Act with care - The need to guard against sun damage is communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grylewo, Poland
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in September: 10.7°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 (-2.9°C).
Average pressure in September
Grylewo, Poland
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is October (1017.1mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in September
Grylewo, Poland
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Grylewo, Poland
- Average humidity in September: 74%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are April and August (68%).
Average rainfall in September
Grylewo, Poland
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Grylewo, Poland
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Grylewo, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (65mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Grylewo, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grylewo, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Grylewo, Poland
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in September
Grylewo, 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, November and December (UV index 1).
Average cloud cover in September
Grylewo, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Grylewo, Poland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).
