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
September
Weather in September
Temperature
With the onset of September, Llanwarne's average high-temperature clocks in at a still comfortable 17.1°C (62.8°F), showing a minor fluctuation from the previous month. Llanwarne's nights in September cool down to an average low-temperature of 9°C (48.2°F).Humidity
In September, the average relative humidity in Llanwarne is 85%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 25mm (0.98") of precipitation.Snowfall
May through October are months without snowfall in Llanwarne.Daylight
In September, the average length of the day in Llanwarne is 12h and 39min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:50 pm BST.
Sunshine
In Llanwarne, the average sunshine in September is 6.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Llanwarne in September?
What is the average humidity in September in Llanwarne?
What is the driest month in Llanwarne?
How much does it rain in Llanwarne in September?
When it does not snow in Llanwarne?
What is the average length of the day in September in Llanwarne?
When is the sunrise / sunset in September in Llanwarne?
How many hours of sunshine does Llanwarne have in September?
What is the UV index intensity in September in Llanwarne?
Average temperature in September
Llanwarne, United Kingdom
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (11.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.4°C).
Average pressure in September
Llanwarne, United Kingdom
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.5mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Llanwarne, United Kingdom
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is February (17.9km/h).
The calmest month (with the lowest average wind speed) is June (12.2km/h).
Average humidity in September
Llanwarne, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are January, November and December (90%).
The month with the lowest relative humidity is July (83%).
Average rainfall in September
Llanwarne, United Kingdom
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (59mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in September
Llanwarne, United Kingdom
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in September
Llanwarne, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Llanwarne, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.3 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
Llanwarne, 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 4min
The month with the most sunshine is July (Average sunshine: 7h and 18min).
The months with the least sunshine are February and November (Average sunshine: 3h and 42min).
Average sunshine days in September
Llanwarne, United Kingdom
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is March (13.5 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Llanwarne, 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
Llanwarne, United Kingdom
- Average cloud cover in September: 56
The month with the most cloud cover is November (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in September
Llanwarne, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February and March (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (8km).
