September weather forecastFolkestone, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Folkestone, United Kingdom, with an average temperature ranging between max 17.6°C (63.7°F) and min 14.6°C (58.3°F).Temperature
September notes an average high-temperature of a still enjoyable 17.6°C (63.7°F), subtly differing from August's 19.3°C (66.7°F). A consistent nighttime average temperature of 14.6°C (58.3°F) is maintained during September.Humidity
September is the least humid month in Folkestone, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 34mm (1.34") of precipitation is accumulated. Throughout the year, there are 181.6 rainfall days, and 488mm (19.21") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Folkestone.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 17.8°C (64°F).Note: Most people do not enjoy swimming in water of 17.8°C (64°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 6:09 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:35 pm BST.
Sunshine
The average sunshine in September in Folkestone is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Folkestone, United Kingdom
- Average high temperature in September: 17.6°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The months with the lowest average high temperature are January and February (7.4°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).
Average pressure in September
Folkestone, United Kingdom
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in September
Folkestone, United Kingdom
- Average wind speed in September: 21.5km/h
The windiest month (with the highest average wind speed) is December (28.9km/h).
The calmest month (with the lowest average wind speed) is July (18.7km/h).
Average humidity in September
Folkestone, United Kingdom
- Average humidity in September: 78%
The months with the highest relative humidity are January, June and December (83%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Folkestone, United Kingdom
- Average rainfall in September: 34mm
The wettest months (with the highest rainfall) are November and December (60mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Folkestone, United Kingdom
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is November (18.9 days).
The month with the least rainy days is April (12.4 days).
Average snowfall in September
Folkestone, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Folkestone, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Folkestone, United Kingdom
- Average sea temperature in September: 17.8°C
The best month for swimming (with the highest average sea temperature) is September (17.8°C).
The coldest month (with the lowest average sea temperature) is March (7.5°C).
Average daylight in September /
Average sunshine in September
Folkestone, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Folkestone, United Kingdom
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is May (15.7 days).
The month with the least sunshine days is November (8 days).
Average UV index in September
Folkestone, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Folkestone, United Kingdom
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Folkestone, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
