Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Entering September, West Kirby's average high-temperature reads a still comfortable 16.5°C (61.7°F), indicating a close resemblance to the previous month's climate. In September, a low-temperature average of 11.5°C (52.7°F) is characteristic of West Kirby, marking a minor shift from daytime temperatures.Humidity
The average relative humidity in September is 81%.Rainfall
In West Kirby, United Kingdom, in September, during 17.5 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In West Kirby, during the entire year, the rain falls for 225.2 days and collects up to 669mm (26.34") of precipitation.Snowfall
May through November are months without snowfall.Daylight
In West Kirby, United Kingdom, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 6:23 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:51 pm BST.
Sunshine
In West Kirby, the average sunshine in September is 7h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in West Kirby, United Kingdom. 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 daily UV index of 4 during September translates into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in West Kirby in September?
What is the average humidity in September in West Kirby?
How many days does it rain in September in West Kirby?
When it does not snow in West Kirby?
What is the average length of the day in September in West Kirby?
What time are sunrise and sunset in September in West Kirby?
How many hours of sunshine does West Kirby have in September?
What is the month with the highest UV index in West Kirby?
What is the UV index intensity in September in West Kirby?
Average temperature in September
West Kirby, United Kingdom
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (3.6°C).
Average pressure in September
West Kirby, 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 (1008.9mbar).
Average wind speed in September
West Kirby, United Kingdom
- Average wind speed in September: 16.1km/h
The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.7km/h).
Average humidity in September
West Kirby, United Kingdom
- Average humidity in September: 81%
The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in September
West Kirby, United Kingdom
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in September
West Kirby, United Kingdom
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in September
West Kirby, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
West Kirby, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
West Kirby, United Kingdom
- Average daylight in September: 12h and 4min
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 0min
The months with the most sunshine are April, May and July (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in September
West Kirby, United Kingdom
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is March (11.8 days).
The month with the least sunshine days is August (4.7 days).
Average UV index in September
West Kirby, 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
West Kirby, United Kingdom
- Average cloud cover in September: 52
The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility in September
West Kirby, 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).
