September weather forecastAmpthill, United Kingdom
September
Weather in September
September, the first month of the autumn in Ampthill, is also an enjoyable month, with an average temperature varying between 18.2°C (64.8°F) and 10.5°C (50.9°F).Temperature
September's onset records an average high-temperature of an enjoyable 18.2°C (64.8°F), a near match to August's 20.7°C (69.3°F). In Ampthill, an average low-temperature of 10.5°C (50.9°F) is recorded during September nights.Humidity
In Ampthill, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 8.5 days and accumulates 11mm (0.43") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Ampthill is 12h and 39min.On the first day of September, sunrise is at 6:14 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:41 pm BST.
Sunshine
In September, the average sunshine in Ampthill is 7h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Ampthill. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ampthill, United Kingdom
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Ampthill, United Kingdom
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Ampthill, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is December (18.7km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Ampthill, United Kingdom
- Average humidity in September: 80%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Ampthill, United Kingdom
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is June (28mm).
The driest month (with the least rainfall) is September (11mm).
Average rainfall days in September
Ampthill, United Kingdom
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is September (8.5 days).
Average snowfall in September
Ampthill, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ampthill, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Ampthill, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is July (Average sunshine: 7h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Ampthill, United Kingdom
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Ampthill, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ampthill, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 50).
Average visibility in September
Ampthill, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
