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 average high-temperature during September registers at a moderate 15.5°C (59.9°F), closely corresponding to the preceding month. During the nights of September, the average low-temperature in Llanbedrog, United Kingdom, holds at a still refreshing 13.4°C (56.1°F).Humidity
In Llanbedrog, the average relative humidity in September is 81%.Rainfall
In September, in Llanbedrog, the rain falls for 17.2 days. Throughout September, 61mm (2.4") of precipitation is accumulated. Throughout the year, there are 214.6 rainfall days, and 798mm (31.42") of precipitation is accumulated.Snowfall
In Llanbedrog, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 40min.On the first day of the month, sunrise is at 6:29 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:18 am and sunset at 6:56 pm BST.
Sunshine
The average sunshine in September is 7.1h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Llanbedrog. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are the temperatures in Llanbedrog in September?
What is the average humidity in September in Llanbedrog?
How many days does it rain in September in Llanbedrog?
When it does not snow in Llanbedrog?
What is the average length of the day in September in Llanbedrog?
When are sunrise and sunset in September in Llanbedrog?
How many hours of sunshine does Llanbedrog have in September?
What are the months with the highest UV index in Llanbedrog?
What is the UV index reading in September in Llanbedrog?
Average temperature in September
Llanbedrog, United Kingdom
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (7.6°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (5.7°C).
Average pressure in September
Llanbedrog, United Kingdom
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in September
Llanbedrog, United Kingdom
- Average wind speed in September: 23.9km/h
The windiest month (with the highest average wind speed) is December (32.6km/h).
The calmest month (with the lowest average wind speed) is June (18.9km/h).
Average humidity in September
Llanbedrog, United Kingdom
- Average humidity in September: 81%
The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (78%).
Average rainfall in September
Llanbedrog, United Kingdom
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is November (99mm).
The driest months (with the least rainfall) are April and May (42mm).
Average rainfall days in September
Llanbedrog, United Kingdom
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is November (21.4 days).
The month with the least rainy days is May (14.7 days).
Average snowfall in September
Llanbedrog, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Llanbedrog, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Llanbedrog, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Llanbedrog, United Kingdom
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is May (13.9 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
Llanbedrog, 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
Llanbedrog, United Kingdom
- Average cloud cover in September: 51
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are May and June (Cloud cover 45).
Average visibility in September
Llanbedrog, 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).
Llanbedrog, United Kingdom
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