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 arrival of September sees a recorded average high-temperature of a still enjoyable 16°C (60.8°F), showing little divergence from the previous month's conditions. September nights observe an average temperature dip to a chilly 9.1°C (48.4°F).Humidity
In Llanfair Dyffryn Clwyd, the average relative humidity in September is 86%.Rainfall
In September, the rain falls for 15.5 days. Throughout September, 34mm (1.34") of precipitation is accumulated. Throughout the year, there are 207.1 rainfall days, and 510mm (20.08") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Llanfair Dyffryn Clwyd.Daylight
In September, the average length of the day in Llanfair Dyffryn Clwyd is 12h and 40min.On the first day of September, sunrise is at 6:24 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:52 pm BST.
Sunshine
In Llanfair Dyffryn Clwyd, the average sunshine in September is 6.3h.UV index
In September, the average daily maximum UV index in Llanfair Dyffryn Clwyd is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What are the temperatures in Llanfair Dyffryn Clwyd in September?
What is the average humidity in September in Llanfair Dyffryn Clwyd?
How many days does it rain in September in Llanfair Dyffryn Clwyd?
When it does not snow in Llanfair Dyffryn Clwyd?
Does it snow in Llanfair Dyffryn Clwyd in September?
How many hours of daylight does Llanfair Dyffryn Clwyd have in September?
What time are sunrise and sunset in September in Llanfair Dyffryn Clwyd?
How many hours of sunshine does Llanfair Dyffryn Clwyd have in September?
What is the UV index intensity in September in Llanfair Dyffryn Clwyd?
Average temperature in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average high temperature in September: 16°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 (6.1°C).
- Average low temperature in September: 9.1°C
The month with the highest average low temperature is August (11.1°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).
Average pressure in September
Llanfair Dyffryn Clwyd, 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 (1009.1mbar).
Average wind speed in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average wind speed in September: 13km/h
The windiest months (with the highest average wind speed) are February and December (16.8km/h).
The calmest month (with the lowest average wind speed) is June (11.3km/h).
Average humidity in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average humidity in September: 86%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is May (82%).
Average rainfall in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (60mm).
The driest month (with the least rainfall) is April (32mm).
Average rainfall days in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is February (14.1 days).
Average snowfall in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (61mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Llanfair Dyffryn Clwyd, 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 42min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is May (Average sunshine: 7h and 6min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is March (11.4 days).
The month with the least sunshine days is November (6 days).
Average UV index in September
Llanfair Dyffryn Clwyd, 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
Llanfair Dyffryn Clwyd, United Kingdom
- Average cloud cover in September: 56
The month with the most cloud cover is November (Cloud cover 66).
The months with the least cloud cover are April and May (Cloud cover 54).
Average visibility in September
Llanfair Dyffryn Clwyd, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February, March and May (9km).
The months with the lowest visibility are January, April, June, July, August, September, October, November and December (8km).
Llanfair Dyffryn Clwyd, United Kingdom
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