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 from August to September sees an average high-temperature of an enjoyable 18.1°C (64.6°F), indicating a minor variance from the prior month. In the month of September, an average of 10.5°C (50.9°F) marks the low-temperature.Humidity
In September, the average relative humidity in Castle Ashby is 80%.Rainfall
In Castle Ashby, in September, it is raining for 10.3 days, with typically 18mm (0.71") of accumulated precipitation. In Castle Ashby, during the entire year, the rain falls for 153.7 days and collects up to 297mm (11.69") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Castle Ashby, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:42 pm BST.
Sunshine
In September, the average sunshine in Castle Ashby, United Kingdom, is 7h.UV index
The average daily maximum UV index in September in Castle Ashby is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the usual temperature for Castle Ashby in September?
What is the average humidity in September in Castle Ashby?
How many days does it rain in September in Castle Ashby?
When it does not snow in Castle Ashby?
How many hours of daylight does Castle Ashby have in September?
What time are sunrise and sunset in September in Castle Ashby?
How many hours of sunshine does Castle Ashby have in September?
What is the UV index intensity in September in Castle Ashby?
Average temperature in September
Castle Ashby, United Kingdom
- Average high temperature in September: 18.1°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°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Castle Ashby, 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 (1010mbar).
Average wind speed in September
Castle Ashby, United Kingdom
- Average wind speed in September: 13.3km/h
The windiest months (with the highest average wind speed) are February and December (18.5km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in September
Castle Ashby, 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
Castle Ashby, United Kingdom
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in September
Castle Ashby, United Kingdom
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in September
Castle Ashby, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Castle Ashby, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 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
Castle Ashby, United Kingdom
- Average daylight in September: 12h and 4min
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 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Castle Ashby, United Kingdom
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (16.9 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in September
Castle Ashby, 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, November and December (UV index 2).
Average cloud cover in September
Castle Ashby, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 50).
Average visibility in September
Castle Ashby, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, July, August, September, October and December (9km).
The months with the lowest visibility are June and November (8km).
Castle Ashby, United Kingdom
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