September weather forecastGrabal, Poland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Grabal, Poland, with an average temperature varying between 10.9°C (51.6°F) and 19.1°C (66.4°F).Temperature
Grabal's transition into September involves a shift in temperature, receding from a warm 24.5°C (76.1°F) in August to a refreshing 19.1°C (66.4°F). Throughout the month of September, Grabal expects an average low of 10.9°C (51.6°F).Humidity
In September, the average relative humidity in Grabal is 72%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 20mm (0.79") of precipitation is accumulated. Throughout the year, in Grabal, there are 142.7 rainfall days, and 343mm (13.5") of precipitation is accumulated.Snowfall
In Grabal, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 40min.On the first day of September, sunrise is at 05:52 and sunset at 19:30. On the last day of the month, sunrise is at 06:42 and sunset at 18:20 CEST.
Sunshine
The average sunshine in September in Grabal is 8.1h.UV index
In September, the average daily maximum UV index in Grabal is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grabal, Poland
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in September
Grabal, Poland
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is October (1017.7mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in September
Grabal, Poland
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (15.4km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Grabal, 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 (66%).
Average rainfall in September
Grabal, Poland
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Grabal, Poland
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Grabal, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grabal, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grabal, 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 6min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Grabal, Poland
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Grabal, Poland
- Average UV index in September: 4
The months with the highest UV index are 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
Grabal, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Grabal, Poland
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (8km).
