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
A minimal variation is noted in Llwynypia's average high-temperature at the onset of September, reaching a still enjoyable 16.2°C (61.2°F) from August's 17.8°C (64°F). Llwynypia usually reports an average low-temperature of 9.9°C (49.8°F) during the month of September.Humidity
The average relative humidity in September in Llwynypia is 87%.Rainfall
In Llwynypia, in September, during 15.5 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Llwynypia, United Kingdom, during the entire year, the rain falls for 200.8 days and collects up to 659mm (25.94") of precipitation.Snowfall
In Llwynypia, snow does not fall in May through October.Daylight
In Llwynypia, the average length of the day in September is 12h and 38min.On the first day of September in Llwynypia, sunrise is at 6:27 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:53 pm BST.
Sunshine
In September, the average sunshine in Llwynypia is 6.3h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the average September temperature in Llwynypia?
What is the average humidity in September in Llwynypia?
How much does it rain in Llwynypia in September?
When it does not snow in Llwynypia?
How many hours of daylight does Llwynypia have in September?
What time are sunrise and sunset in September in Llwynypia?
How many hours of sunshine does Llwynypia have in September?
What is the UV index reading in September in Llwynypia?
Average temperature in September
Llwynypia, United Kingdom
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in September
Llwynypia, United Kingdom
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Llwynypia, United Kingdom
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is February (20.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.2km/h).
Average humidity in September
Llwynypia, United Kingdom
- Average humidity in September: 87%
The months with the highest relative humidity are January, November and December (89%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in September
Llwynypia, United Kingdom
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is November (81mm).
The driest month (with the least rainfall) is May (34mm).
Average rainfall days in September
Llwynypia, United Kingdom
- Average rainfall days in September: 15.5 days
The months with the highest number of rainy days are August and November (19.4 days).
The month with the least rainy days is February (13.3 days).
Average snowfall in September
Llwynypia, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Llwynypia, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Llwynypia, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 6h and 2min
The months with the most sunshine are April and May (Average sunshine: 7h and 24min).
The months with the least sunshine are January, February, November and December (Average sunshine: 3h and 30min).
Average sunshine days in September
Llwynypia, United Kingdom
- Average sunshine days in September: 11.1 days
The month with the most sunshine days is April (12.9 days).
The month with the least sunshine days is November (7.2 days).
Average UV index in September
Llwynypia, 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
Llwynypia, United Kingdom
- Average cloud cover in September: 57
The month with the most cloud cover is November (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 52).
Average visibility in September
Llwynypia, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (9km).
The months with the lowest visibility are July, August and September (8km).
Llwynypia, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
