September weather forecastLancaster, United Kingdom
September
Weather in September
September, the first month of the autumn in Lancaster, is still a mild month, with an average temperature ranging between max 15.3°C (59.5°F) and min 10.8°C (51.4°F).Temperature
Lancaster records an average high-temperature of a mild 15.3°C (59.5°F) in September, maintaining a close correlation with August's 16.8°C (62.2°F). Lancaster sustains a near constant temperature throughout September, with nighttime averages of 10.8°C (51.4°F).Humidity
The average relative humidity in September is 85%.Rainfall
In September, the rain falls for 17.3 days. Throughout September, 71mm (2.8") of precipitation is accumulated. In Lancaster, during the entire year, the rain falls for 238.1 days and collects up to 984mm (38.74") of precipitation.Snowfall
May through November are months without snowfall in Lancaster, United Kingdom.Daylight
The average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 6:20 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:49 pm BST.
Sunshine
In September, the average sunshine is 6.6h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lancaster, United Kingdom
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (16.9°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average pressure in September
Lancaster, United Kingdom
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.5mbar).
Average wind speed in September
Lancaster, United Kingdom
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is June (14.3km/h).
Average humidity in September
Lancaster, United Kingdom
- Average humidity in September: 85%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in September
Lancaster, United Kingdom
- Average rainfall in September: 71mm
The wettest month (with the highest rainfall) is December (113mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Lancaster, United Kingdom
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is April (15.9 days).
Average snowfall in September
Lancaster, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Lancaster, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Lancaster, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is April (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Lancaster, United Kingdom
- Average sunshine days in September: 9.6 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is August (4.9 days).
Average UV index in September
Lancaster, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lancaster, United Kingdom
- Average cloud cover in September: 54
The months with the most cloud cover are January and December (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 47).
Average visibility in September
Lancaster, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
