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
September welcomes an average high-temperature of a moderate 14.5°C (58.1°F), not much different from the preceding month. During September, Collieston's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a cool 10.1°C (50.2°F).Humidity
The months with the highest humidity are June through September, with an average relative humidity of 84%.Rainfall
In September, in Collieston, the rain falls for 11.5 days. Throughout September, 15mm (0.59") of precipitation is accumulated. In Collieston, during the entire year, the rain falls for 153 days and collects up to 225mm (8.86") of precipitation.Snowfall
In Collieston, snow does not fall in April, June through October.Daylight
The average length of the day in September in Collieston, United Kingdom, is 12h and 47min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:44 pm BST.
Sunshine
In September, the average sunshine in Collieston is 7.1h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 4 in September transforms into this advice:
Ensure safety - Sun damage prevention is strongly urged. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What is the average September temperature in Collieston?
What is the most humid month in Collieston?
What is the average humidity in September in Collieston?
How many days does it rain in September in Collieston?
When it does not snow in Collieston?
What is the average length of the day in September in Collieston?
What time are sunrise and sunset in September in Collieston?
How long on average sun shines in September in Collieston?
What is the month with the highest UV index in Collieston?
How high is the UV index in September in Collieston?
Average temperature in September
Collieston, United Kingdom
- Average high temperature in September: 14.5°C
The warmest months (with the highest average high temperature) are July and August (16.3°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (11.5°C).
The coldest months (with the lowest average low temperature) are January and February (3°C).
Average pressure in September
Collieston, United Kingdom
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The months with the lowest atmospheric pressure are November and December (1006.2mbar).
Average wind speed in September
Collieston, United Kingdom
- Average wind speed in September: 18.7km/h
The windiest month (with the highest average wind speed) is January (24.2km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity in September
Collieston, United Kingdom
- Average humidity in September: 84%
The months with the highest relative humidity are June, July, August and September (84%).
The months with the lowest relative humidity are March and April (80%).
Average rainfall in September
Collieston, United Kingdom
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Collieston, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is May (11.3 days).
Average snowfall in September
Collieston, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (18mm).
The months with the least snowfall are April, June, July, August, September and October (0mm).
Average snowfall days in September
Collieston, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Collieston, United Kingdom
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 48min).
- Average sunshine in September: 7h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 7h and 54min).
The month with the least sunshine is November (Average sunshine: 4h and 6min).
Average sunshine days in September
Collieston, United Kingdom
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is May (15.5 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in September
Collieston, 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
Collieston, United Kingdom
- Average cloud cover in September: 51
The months with the most cloud cover are June and November (Cloud cover 58).
The months with the least cloud cover are May and September (Cloud cover 51).
Average visibility in September
Collieston, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, September, October, November and December (10km).
The months with the lowest visibility are January, May, June, July and August (9km).
Collieston, United Kingdom
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