September weather forecastKillinchy, United Kingdom
September
Weather in September
September, the first month of the autumn in Killinchy, is also a moderate month, with an average temperature fluctuating between 10.1°C (50.2°F) and 14.8°C (58.6°F).Temperature
Entering September, Killinchy's average high-temperature reads a still refreshing 14.8°C (58.6°F), indicating a close resemblance to the previous month's climate. September nights reflect a consistent temperature dip to a fresh 10.1°C (50.2°F), a slight descent from daytime peaks.Humidity
In Killinchy, the average relative humidity in September is 87%.Rainfall
In Killinchy, in September, it is raining for 16.4 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, in Killinchy, there are 220.2 rainfall days, and 626mm (24.65") of precipitation is accumulated.Snowfall
In Killinchy, United Kingdom, snow does not fall in April through October.Daylight
The average length of the day in September in Killinchy is 12h and 42min.On the first day of September, sunrise is at 6:31 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:00 pm BST.
Sunshine
The average sunshine in September is 6h.UV index
The average daily maximum UV index in September in Killinchy is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 3 in September transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, United Kingdom
- Average daylight in September: 12h and 42min
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
Killinchy, 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
Killinchy, 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
Killinchy, 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
Killinchy, 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).
