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 commencement of September brings an average high-temperature of a moderate 15.1°C (59.2°F), marking an inconsequential divergence from August. Llanrug's average low temperature, barely cooler than the daytime high, steadies at a cool 11.7°C (53.1°F) during September.Humidity
The average relative humidity in September is 85%.Rainfall
In Llanrug, in September, during 19 rainfall days, 56mm (2.2") of precipitation is typically accumulated. In Llanrug, during the entire year, the rain falls for 236.8 days and collects up to 754mm (29.69") of precipitation.Snowfall
May through October are months without snowfall in Llanrug, United Kingdom.Daylight
In Llanrug, the average length of the day in September is 12h and 40min.On the first day of September, sunrise is at 6:27 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:55 pm BST.
Sunshine
In September, the average sunshine is 6.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the usual temperature for Llanrug in September?
What is the average humidity in September in Llanrug?
How much does it rain in Llanrug in September?
When it does not snow in Llanrug?
What is the average length of the day in September in Llanrug?
When is the sunrise / sunset in September in Llanrug?
How many hours of sunshine does Llanrug have in September?
When is the highest UV index in Llanrug?
How high is the UV index in September in Llanrug?
Average temperature in September
Llanrug, United Kingdom
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is February (7°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in September
Llanrug, United Kingdom
- Average pressure in September: 1015.7mbar
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
Llanrug, United Kingdom
- Average wind speed in September: 18.7km/h
The windiest month (with the highest average wind speed) is December (25.3km/h).
The calmest month (with the lowest average wind speed) is June (15.1km/h).
Average humidity in September
Llanrug, United Kingdom
- Average humidity in September: 85%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Llanrug, United Kingdom
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in September
Llanrug, United Kingdom
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is April (16.3 days).
Average snowfall in September
Llanrug, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Llanrug, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Llanrug, United Kingdom
- Average daylight in September: 12h and 4min
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 1min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Llanrug, United Kingdom
- Average sunshine days in September: 7.7 days
The month with the most sunshine days is April (11.4 days).
The month with the least sunshine days is December (4.2 days).
Average UV index in September
Llanrug, 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
Llanrug, United Kingdom
- Average cloud cover in September: 56
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility in September
Llanrug, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (9km).
Llanrug, United Kingdom
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