September weather forecastMountnessing, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Mountnessing, United Kingdom, with temperature in the range of an average low of 11.6°C (52.9°F) and an average high of 18.5°C (65.3°F).Temperature
September's presence records an average high-temperature of an enjoyable 18.5°C (65.3°F), closely mirroring August's climate. Nighttime temperatures in September average to a cool 11.6°C (52.9°F) in Mountnessing.Humidity
In September, the average relative humidity in Mountnessing, United Kingdom, is 77%.Rainfall
In Mountnessing, in September, during 10.5 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Mountnessing, during the entire year, the rain falls for 156 days and collects up to 361mm (14.21") of precipitation.Snowfall
In Mountnessing, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September in Mountnessing, United Kingdom, sunrise is at 6:11 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:38 pm BST.
Sunshine
In Mountnessing, United Kingdom, the average sunshine in September is 7.4h.UV index
In Mountnessing, United Kingdom, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mountnessing, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11.6°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 (2.2°C).
Average pressure in September
Mountnessing, United Kingdom
- Average pressure in September: 1016.8mbar
The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in September
Mountnessing, United Kingdom
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is February (18.7km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in September
Mountnessing, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Mountnessing, United Kingdom
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Mountnessing, United Kingdom
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Mountnessing, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (28mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Mountnessing, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 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
Mountnessing, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Mountnessing, United Kingdom
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in September
Mountnessing, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Mountnessing, United Kingdom
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 46).
Average visibility in September
Mountnessing, 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).
