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 mild 15.8°C (60.4°F), maintaining a close resemblance to the previous month. Blackburn experiences an average low-temperature reading of 9.2°C (48.6°F) throughout September.Humidity
The average relative humidity in September in Blackburn is 86%.Rainfall
In September, in Blackburn, the rain falls for 15.4 days. Throughout September, 41mm (1.61") of precipitation is accumulated. Throughout the year, in Blackburn, there are 208.9 rainfall days, and 592mm (23.31") of precipitation is accumulated.Snowfall
In Blackburn, snow does not fall in May through October.Daylight
In Blackburn, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:59 pm. On the last day of September, in Blackburn, United Kingdom, sunrise is at 7:10 am and sunset at 6:48 pm BST.
Sunshine
The average sunshine in September is 6.1h.UV index
In Blackburn, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What is the usual temperature for Blackburn in September?
What is the average humidity in September in Blackburn?
How many days does it rain in September in Blackburn?
When it does not snow in Blackburn?
What is the average length of the day in September in Blackburn?
When are sunrise and sunset in September in Blackburn?
How many hours of sunshine does Blackburn have in September?
What is the UV index intensity in September in Blackburn?
Average temperature in September
Blackburn, United Kingdom
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is August (11.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Blackburn, United Kingdom
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in September
Blackburn, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest months (with the lowest average wind speed) are June and July (12.5km/h).
Average humidity in September
Blackburn, United Kingdom
- Average humidity in September: 86%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in September
Blackburn, United Kingdom
- Average rainfall in September: 41mm
The wettest months (with the highest rainfall) are August and December (66mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Blackburn, United Kingdom
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is August (21.4 days).
The month with the least rainy days is February (14.3 days).
Average snowfall in September
Blackburn, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Blackburn, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.2 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
Blackburn, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 6h and 1min
The month with the most sunshine is April (Average sunshine: 7h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in September
Blackburn, United Kingdom
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is April (12 days).
The month with the least sunshine days is August (5.4 days).
Average UV index in September
Blackburn, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (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
Blackburn, United Kingdom
- Average cloud cover in September: 59
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in September
Blackburn, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June and October (9km).
The months with the lowest visibility are January, July, August, September, November and December (8km).
Blackburn, United Kingdom
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