September weather forecastGrajów, Poland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Grajów, Poland, with an average temperature ranging between max 19.4°C (66.9°F) and min 10.1°C (50.2°F).Temperature
The arrival of September corresponds with a shift in temperature, down from a warm 24.9°C (76.8°F) in August to a comfortable 19.4°C (66.9°F). Throughout September, the temperature falls to an average low of 10.1°C (50.2°F).Humidity
The average relative humidity in September in Grajów is 74%.Rainfall
In Grajów, Poland, in September, it is raining for 10.2 days, with typically 30mm (1.18") of accumulated precipitation. In Grajów, during the entire year, the rain falls for 123.2 days and collects up to 368mm (14.49") of precipitation.Snowfall
In Grajów, snow does not fall in June through September.Daylight
The average length of the day in September in Grajów is 12h and 37min.On the first day of September, sunrise is at 05:55 and sunset at 19:23. On the last day of the month, sunrise is at 06:38 and sunset at 18:20 CEST.
Sunshine
In September, the average sunshine in Grajów is 8.3h.UV index
In Grajów, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Undertake precautions - Guarding against sun damage is counselled. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grajów, Poland
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.4°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Grajów, Poland
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The months with the lowest atmospheric pressure are June and July (1014.5mbar).
Average wind speed in September
Grajów, Poland
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is March (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in September
Grajów, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Grajów, Poland
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is May (65mm).
The driest months (with the least rainfall) are January and March (14mm).
Average rainfall days in September
Grajów, Poland
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Grajów, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grajów, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grajów, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 18min
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 18min).
Average sunshine days in September
Grajów, Poland
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Grajów, Poland
- Average UV index in September: 4
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
Grajów, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Grajów, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and February (8km).





