September weather forecastAmpton, United Kingdom
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Ampton, United Kingdom, with an average temperature varying between 11.5°C (52.7°F) and 18.4°C (65.1°F).Temperature
As Ampton transitions into September, the average high-temperature stands at a refreshing 18.4°C (65.1°F), offering little variation from the preceding month. Throughout the month of September, Ampton expects an average low of 11.5°C (52.7°F).Humidity
In Ampton, United Kingdom, the average relative humidity in September is 78%.Rainfall
In Ampton, in September, during 11.3 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, in Ampton, there are 169.1 rainfall days, and 379mm (14.92") of precipitation is accumulated.Snowfall
In Ampton, snow does not fall in April through October.Daylight
In Ampton, the average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:09 am and sunset at 7:44 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:36 pm BST.
Sunshine
The average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ampton, United Kingdom
- Average high temperature in September: 18.4°C
The warmest month (with the highest average high temperature) is August (21.2°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Ampton, United Kingdom
- Average pressure in September: 1016.4mbar
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
Ampton, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest months (with the highest average wind speed) are February and December (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Ampton, United Kingdom
- Average humidity in September: 78%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Ampton, United Kingdom
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Ampton, United Kingdom
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in September
Ampton, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Ampton, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.2 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
Ampton, United Kingdom
- Average daylight in September: 12h and 42min
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 18min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Ampton, United Kingdom
- Average sunshine days in September: 16 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Ampton, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Ampton, United Kingdom
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 46).
Average visibility in September
Ampton, 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).
