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
September
Weather in September
Temperature
The arrival of September marks a slight shift to an average high-temperature of a still refreshing 17.7°C (63.9°F) from August's 19.8°C (67.6°F). In September, Lopen experiences an average nighttime temperature of 10°C (50°F).Humidity
The average relative humidity in September in Lopen is 85%.Rainfall
September is the month with the least rainfall. Rain falls for 10.8 days and accumulates 20mm (0.79") of precipitation.Snowfall
In Lopen, snow does not fall in April through October.Daylight
The average length of the day in September in Lopen is 12h and 38min.On the first day of September, sunrise is at 6:25 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:51 pm BST.
Sunshine
In September, the average sunshine is 6.4h.UV index
The months with the highest UV index in Lopen are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake precautions - Guarding against sun damage is counselled. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lopen in September?
What is the average humidity in September in Lopen?
What is the driest month in Lopen?
How many days does it rain in September in Lopen?
When it does not snow in Lopen?
How many hours of daylight does Lopen have in September?
When is the sunrise / sunset in September in Lopen?
How long on average sun shines in September in Lopen?
What are the months with the highest UV index in Lopen?
What is the UV index reading in September in Lopen?
Average temperature in September
Lopen, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in September
Lopen, United Kingdom
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Lopen, United Kingdom
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is February (17.1km/h).
The calmest month (with the lowest average wind speed) is July (12.4km/h).
Average humidity in September
Lopen, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are January, November and December (90%).
The month with the lowest relative humidity is July (82%).
Average rainfall in September
Lopen, United Kingdom
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (50mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in September
Lopen, United Kingdom
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is November (16.6 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in September
Lopen, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Lopen, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.9 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
Lopen, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is July (Average sunshine: 7h and 30min).
The month with the least sunshine is November (Average sunshine: 3h and 30min).
Average sunshine days in September
Lopen, United Kingdom
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in September
Lopen, 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
Lopen, United Kingdom
- Average cloud cover in September: 57
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
Lopen, United Kingdom
- Average visibility in September: 8km
The month with the highest visibility is February (9km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (8km).
