September weather forecastRomiley, United Kingdom
September
Weather in September
September, the first month of the autumn in Romiley, is still a comfortable month, with an average temperature ranging between max 16.1°C (61°F) and min 9.3°C (48.7°F).Temperature
September welcomes an average high-temperature of a still refreshing 16.1°C (61°F), not much different from the preceding month. September nights are marked by an average temperature drop to a frosty 9.3°C (48.7°F).Humidity
The average relative humidity in September in Romiley is 85%.Rainfall
In Romiley, in September, during 15.9 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Romiley, United Kingdom, during the entire year, the rain falls for 211.9 days and collects up to 553mm (21.77") of precipitation.Snowfall
In Romiley, United Kingdom, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 41min.On the first day of September in Romiley, sunrise is at 6:18 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:47 pm BST.
Sunshine
The average sunshine in September is 5.9h.UV index
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 ordinary person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. To avoid the Sun's strongest rays, limit exposure around the mid-day 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
Romiley, United Kingdom
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (18.9°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is August (11.5°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Romiley, United Kingdom
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in September
Romiley, United Kingdom
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest months (with the lowest average wind speed) are June and July (12.6km/h).
Average humidity in September
Romiley, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are January and December (90%).
The month with the lowest relative humidity is May (80%).
Average rainfall in September
Romiley, United Kingdom
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (66mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Romiley, United Kingdom
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is July (21.2 days).
The month with the least rainy days is February (14.3 days).
Average snowfall in September
Romiley, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Romiley, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 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
Romiley, United Kingdom
- 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: 5h and 54min
The month with the most sunshine is April (Average sunshine: 6h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in September
Romiley, United Kingdom
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is March (12.2 days).
The month with the least sunshine days is August (5.7 days).
Average UV index in September
Romiley, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Romiley, United Kingdom
- Average cloud cover in September: 60
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in September
Romiley, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February, March, April and May (9km).
The months with the lowest visibility are January, June, July, August, September, October, November and December (8km).
