September weather forecastMejły, Poland
September
Weather in September
September, the first month of the autumn in Mejły, is also an enjoyable month, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 9.5°C (49.1°F).Temperature
Mejły'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 18.3°C (64.9°F). Throughout September, the temperature falls to an average low of 9.5°C (49.1°F).Humidity
In September, the average relative humidity in Mejły is 76%.Rainfall
In Mejły, during September, the rain falls for 13.4 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, in Mejły, there are 164.4 rainfall days, and 515mm (20.28") of precipitation is accumulated.Snowfall
In Mejły, snow does not fall in May through September.Daylight
In September, the average length of the day in Mejły, Poland, is 12h and 41min.On the first day of the month, sunrise is at 05:39 and sunset at 19:18. On the last day of September, sunrise is at 06:29 and sunset at 18:08 CEST.
Sunshine
The average sunshine in September in Mejły is 7.5h.UV index
In Mejły, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during September translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mejły, Poland
- Average high temperature in September: 18.3°C
The warmest months (with the highest average high temperature) are July and August (24.2°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in September
Mejły, Poland
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).
Average wind speed in September
Mejły, Poland
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is December (13.2km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Mejły, Poland
- Average humidity in September: 76%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (70%).
Average rainfall in September
Mejły, Poland
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Mejły, Poland
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Mejły, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (192mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Mejły, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mejły, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 12min).
Average sunshine days in September
Mejły, Poland
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (15.5 days).
The months with the least sunshine days are January and February (6.8 days).
Average UV index in September
Mejły, Poland
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Mejły, Poland
- Average cloud cover in September: 43
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Mejły, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
