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
Weather in September
Temperature
With the advent of September, Glengormley's high-temperatures adjust to a mild 14.8°C (58.6°F), closely aligning with the preceding month. Nighttime temperatures in Glengormley hover around an average low of 10.1°C (50.2°F) in September, a slight descent from daytime highs.Humidity
In Glengormley, the average relative humidity in September is 87%.Rainfall
In September, in Glengormley, the rain falls for 16.4 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 220.2 rainfall days, and 626mm (24.65") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 43min.On the first day of September, sunrise is at 6:31 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:01 pm BST.
Sunshine
In September, the average sunshine is 6h.UV index
In September, the average daily maximum UV index is 3. 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: A daily maximum UV index of 3 in September translates into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What are September temperatures in Glengormley?
What is the average humidity in September in Glengormley?
How many days does it rain in September in Glengormley?
When it does not snow in Glengormley?
What is the average length of the day in September in Glengormley?
When is the sunrise / sunset in September in Glengormley?
How long on average sun shines in September in Glengormley?
What is the UV index intensity in September in Glengormley?
Average temperature in September
Glengormley, United Kingdom
- Average high temperature in September: 14.8°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 (6.8°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (11.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average pressure in September
Glengormley, United Kingdom
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).
Average wind speed in September
Glengormley, United Kingdom
- Average wind speed in September: 17km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest months (with the lowest average wind speed) are June and July (13.7km/h).
Average humidity in September
Glengormley, United Kingdom
- Average humidity in September: 87%
The months with the highest relative humidity are January and December (88%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in September
Glengormley, United Kingdom
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (72mm).
The driest month (with the least rainfall) is May (38mm).
Average rainfall days in September
Glengormley, United Kingdom
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is August (23 days).
The month with the least rainy days is April (16.1 days).
Average snowfall in September
Glengormley, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Glengormley, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Glengormley, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 6h and 0min
The month with the most sunshine is June (Average sunshine: 7h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Glengormley, United Kingdom
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is August (5.6 days).
Average UV index in September
Glengormley, 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
Glengormley, United Kingdom
- Average cloud cover in September: 58
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in September
Glengormley, 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).
Glengormley, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
