September weather forecastMillom, United Kingdom
September
Weather in September
September, the first month of the autumn in Millom, is still a mild month, with an average temperature varying between 15.2°C (59.4°F) and 12.3°C (54.1°F).Temperature
September's onset records an average high-temperature of a moderate 15.2°C (59.4°F), a near match to August's 16.7°C (62.1°F). Millom experiences a subtle drop in temperature during the September nights, recording an average of 12.3°C (54.1°F).Humidity
In Millom, the average relative humidity in September is 83%.Rainfall
In Millom, United Kingdom, in September, during 18.4 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Millom, during the entire year, the rain falls for 236.6 days and collects up to 848mm (33.39") of precipitation.Snowfall
May through November are months without snowfall.Daylight
In September, the average length of the day in Millom, United Kingdom, is 12h and 42min.On the first day of September, sunrise is at 6:22 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:51 pm BST.
Sunshine
The average sunshine in September in Millom is 6.8h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Millom. A UV Index estimate 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, the UV index of 4 transforms into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Millom, United Kingdom
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is August (16.7°C).
The month with the lowest average high temperature is February (6.6°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (4°C).
Average pressure in September
Millom, United Kingdom
- Average pressure in September: 1015mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in September
Millom, United Kingdom
- Average wind speed in September: 20.9km/h
The windiest month (with the highest average wind speed) is December (27.8km/h).
The calmest month (with the lowest average wind speed) is June (16.2km/h).
Average humidity in September
Millom, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are January, June, July and August (84%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Millom, United Kingdom
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is December (96mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in September
Millom, United Kingdom
- Average rainfall days in September: 18.4 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is April (15.7 days).
Average snowfall in September
Millom, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is December (14mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Millom, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.4 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
Millom, 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 24min).
- Average sunshine in September: 6h and 48min
The months with the most sunshine are April and May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Millom, United Kingdom
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is December (5 days).
Average UV index in September
Millom, 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
Millom, United Kingdom
- Average cloud cover in September: 54
The months with the most cloud cover are January and December (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 46).
Average visibility in September
Millom, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, April, June and September (10km).
The months with the lowest visibility are January, February, May, July, August, October, November and December (9km).
