September weather forecastLlanddulas, United Kingdom
September
Weather in September
September, the first month of the autumn in Llanddulas, is still a refreshing month, with temperature in the range of an average low of 11.7°C (53.1°F) and an average high of 15.8°C (60.4°F).Temperature
The commencement of September brings an average high-temperature of a mild 15.8°C (60.4°F), marking an inconsequential divergence from August. Llanddulas's nighttime temperature in September experiences a slight dip from daytime highs, falling to an average of 11.7°C (53.1°F).Humidity
In Llanddulas, the average relative humidity in September is 83%.Rainfall
In Llanddulas, during September, the rain falls for 11.8 days and regularly aggregates up to 19mm (0.75") of precipitation. In Llanddulas, during the entire year, the rain falls for 160.9 days and collects up to 292mm (11.5") of precipitation.Snowfall
In Llanddulas, snow does not fall in May through November.Daylight
In September, the average length of the day in Llanddulas is 12h and 41min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:15 am and sunset at 6:53 pm BST.
Sunshine
In September, the average sunshine is 6.6h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Llanddulas, United Kingdom. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Llanddulas, United Kingdom
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is February (4.1°C).
Average pressure in September
Llanddulas, United Kingdom
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in September
Llanddulas, United Kingdom
- Average wind speed in September: 18.4km/h
The windiest month (with the highest average wind speed) is December (24.1km/h).
The calmest month (with the lowest average wind speed) is June (14.8km/h).
Average humidity in September
Llanddulas, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are January and December (84%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in September
Llanddulas, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is June (34mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Llanddulas, United Kingdom
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (10.9 days).
Average snowfall in September
Llanddulas, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Llanddulas, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Llanddulas, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is May (Average sunshine: 7h and 42min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in September
Llanddulas, United Kingdom
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is March (15.3 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in September
Llanddulas, 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, March, November and December (UV index 2).
Average cloud cover in September
Llanddulas, United Kingdom
- Average cloud cover in September: 54
The month with the most cloud cover is November (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility in September
Llanddulas, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
