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
The transition into September reveals an average high-temperature of a still refreshing 14.8°C (58.6°F), mirroring a close resemblance to August. September nights cool down to an average low-temperature of 9.3°C (48.7°F).Humidity
In Antrim, the average relative humidity in September is 88%.Rainfall
In Antrim, during September, the rain falls for 10 days and regularly aggregates up to 12mm (0.47") of precipitation. In Antrim, during the entire year, the rain falls for 138.5 days and collects up to 195mm (7.68") of precipitation.Snowfall
April through November are months without snowfall in Antrim.Daylight
In Antrim, the average length of the day in September is 12h and 43min.On the first day of the month, sunrise is at 6:32 am and sunset at 8:16 pm. On the last day of September, in Antrim, sunrise is at 7:26 am and sunset at 7:02 pm BST.
Sunshine
In September, the average sunshine is 5.6h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 3 transforms into the following advice:
Take precautions - Protection against sunburn is recommended. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Antrim in September?
What is the average humidity in September in Antrim?
How many days does it rain in September in Antrim?
When it does not snow in Antrim?
What is the average length of the day in September in Antrim?
When are sunrise and sunset in September in Antrim?
How many hours of sunshine does Antrim have in September?
What is the UV index intensity in September in Antrim?
Average temperature in September
Antrim, United Kingdom
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (2.2°C).
Average pressure in September
Antrim, United Kingdom
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in September
Antrim, United Kingdom
- Average wind speed in September: 15.4km/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 (12.9km/h).
Average humidity in September
Antrim, United Kingdom
- Average humidity in September: 88%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in September
Antrim, United Kingdom
- Average rainfall in September: 12mm
The wettest months (with the highest rainfall) are June and August (23mm).
The driest months (with the least rainfall) are January and May (11mm).
Average rainfall days in September
Antrim, United Kingdom
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in September
Antrim, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Antrim, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 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
Antrim, 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 18min).
- Average sunshine in September: 5h and 4min
The month with the most sunshine is June (Average sunshine: 7h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Antrim, United Kingdom
- Average sunshine days in September: 16.2 days
The months with the most sunshine days are May and December (16.3 days).
The month with the least sunshine days is August (12 days).
Average UV index in September
Antrim, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are June 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
Antrim, United Kingdom
- Average cloud cover in September: 61
The month with the most cloud cover is July (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in September
Antrim, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, September, October, November and December (9km).
The months with the lowest visibility are June, July and August (8km).
Antrim, United Kingdom
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