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 sea temperature 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
Culmore's September average high-temperature settles at a mild 14.8°C (58.6°F), showing a near match with the preceding month. Throughout September, an average low-temperature of 8.7°C (47.7°F) is experienced in Culmore, United Kingdom.Humidity
In September, the average relative humidity in Culmore is 88%.Rainfall
September is the month with the least rainfall in Culmore. Rain falls for 8.1 days and accumulates 10mm (0.39") of precipitation.Snowfall
April through October are months without snowfall.Sea temperature
In September, the average sea temperature in Culmore is 14.1°C (57.4°F).Note: Caution: 14.1°C (57.4°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.
Daylight
In Culmore, United Kingdom, the average length of the day in September is 12h and 43min.On the first day of September, sunrise is at 6:36 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:07 pm BST.
Sunshine
In September, the average sunshine is 4.9h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the temperature in September in Culmore?
What is the average humidity in September in Culmore?
What is the driest month in Culmore?
How much does it rain in Culmore in September?
When it does not snow in Culmore?
What is the sea water temperature in September in Culmore?
What is the average length of the day in September in Culmore?
When is the sunrise / sunset in September in Culmore?
How many hours of sunshine does Culmore have in September?
What is the UV index reading in September in Culmore?
Average temperature in September
Culmore, United Kingdom
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is July (16.8°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 8.7°C
The months with the highest average low temperature are July and August (10.1°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in September
Culmore, United Kingdom
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in September
Culmore, United Kingdom
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Culmore, United Kingdom
- Average humidity in September: 88%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (83%).
Average rainfall in September
Culmore, United Kingdom
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is August (25mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Culmore, United Kingdom
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is September (8.1 days).
Average snowfall in September
Culmore, 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
Culmore, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Culmore, United Kingdom
- Average sea temperature in September: 14.1°C
The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).
Average daylight in September /
Average sunshine in September
Culmore, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in September: 4h and 5min
The month with the most sunshine is June (Average sunshine: 6h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Culmore, United Kingdom
- Average sunshine days in September: 17 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Culmore, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May and June (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
Culmore, United Kingdom
- Average cloud cover in September: 66
The months with the most cloud cover are July and August (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 59).
Average visibility in September
Culmore, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
Culmore, United Kingdom
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