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
As September takes hold, the average high-temperature is a refreshing 18.5°C (65.3°F), nearly mirroring that of the previous month. Throughout the month of September, Althorne reports a steady low-temperature average of 12.7°C (54.9°F).Humidity
The average relative humidity in September is 77%.Rainfall
In September, in Althorne, the rain falls for 9.7 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Althorne, during the entire year, the rain falls for 148.1 days and collects up to 293mm (11.54") of precipitation.Snowfall
In Althorne, snow does not fall in May through October.Daylight
In Althorne, United Kingdom, the average length of the day in September is 12h and 38min.On the first day of September in Althorne, sunrise is at 6:10 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:36 pm BST.
Sunshine
In Althorne, United Kingdom, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the average September temperature in Althorne?
What is the average humidity in September in Althorne?
How much does it rain in Althorne in September?
When it does not snow in Althorne?
How many hours of daylight does Althorne have in September?
When are sunrise and sunset in September in Althorne?
How long on average sun shines in September in Althorne?
What is the UV index intensity in September in Althorne?
Average temperature in September
Althorne, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in September
Althorne, 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 (1010.7mbar).
Average wind speed in September
Althorne, United Kingdom
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (22km/h).
The calmest month (with the lowest average wind speed) is July (14.9km/h).
Average humidity in September
Althorne, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Althorne, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is October (33mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Althorne, United Kingdom
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (15.3 days).
The months with the least rainy days are February and September (9.7 days).
Average snowfall in September
Althorne, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Althorne, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Althorne, 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: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 8h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Althorne, United Kingdom
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Althorne, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Althorne, United Kingdom
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in September
Althorne, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
Althorne, United Kingdom
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