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
With the start of September, Llanddewi Velfrey measures an average high-temperature of a still refreshing 16.1°C (61°F), not significantly differing from August's 17.2°C (63°F). A slight dip in temperature to a moderate 13.4°C (56.1°F) marks the average nights in Llanddewi Velfrey, United Kingdom, during September.Humidity
The average relative humidity in September is 82%.Rainfall
In Llanddewi Velfrey, in September, during 16.3 rainfall days, 48mm (1.89") of precipitation is typically accumulated. Throughout the year, in Llanddewi Velfrey, United Kingdom, there are 210.4 rainfall days, and 577mm (22.72") of precipitation is accumulated.Snowfall
In Llanddewi Velfrey, United Kingdom, snow does not fall in April through October.Daylight
In September, the average length of the day in Llanddewi Velfrey is 12h and 38min.On the first day of September, sunrise is at 6:31 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 6:58 pm BST.
Sunshine
In Llanddewi Velfrey, the average sunshine in September is 7.1h.UV index
The months with the highest UV index in Llanddewi Velfrey are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the temperature in September in Llanddewi Velfrey?
What is the average humidity in September in Llanddewi Velfrey?
How many days does it rain in September in Llanddewi Velfrey?
When it does not snow in Llanddewi Velfrey?
What is the average length of the day in September in Llanddewi Velfrey?
When are sunrise and sunset in September in Llanddewi Velfrey?
How long on average sun shines in September in Llanddewi Velfrey?
What are the months with the highest UV index in Llanddewi Velfrey?
What is the UV index reading in September in Llanddewi Velfrey?
Average temperature in September
Llanddewi Velfrey, United Kingdom
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is August (17.2°C).
The month with the lowest average high temperature is February (8.3°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (5.6°C).
Average pressure in September
Llanddewi Velfrey, United Kingdom
- Average pressure in September: 1016.6mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in September
Llanddewi Velfrey, United Kingdom
- Average wind speed in September: 22.1km/h
The windiest month (with the highest average wind speed) is December (29.1km/h).
The calmest month (with the lowest average wind speed) is June (17.9km/h).
Average humidity in September
Llanddewi Velfrey, United Kingdom
- Average humidity in September: 82%
The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are February, March, April, November and December (81%).
Average rainfall in September
Llanddewi Velfrey, United Kingdom
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is May (23mm).
Average rainfall days in September
Llanddewi Velfrey, United Kingdom
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is November (21.9 days).
The month with the least rainy days is May (13.9 days).
Average snowfall in September
Llanddewi Velfrey, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Llanddewi Velfrey, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Llanddewi Velfrey, 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: 7h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 42min).
Average sunshine days in September
Llanddewi Velfrey, United Kingdom
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is November (5.5 days).
Average UV index in September
Llanddewi Velfrey, 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 and February (UV index 2).
Average cloud cover in September
Llanddewi Velfrey, United Kingdom
- Average cloud cover in September: 50
The months with the most cloud cover are November and December (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility in September
Llanddewi Velfrey, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Llanddewi Velfrey, United Kingdom
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