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 advent of September observes an average high-temperature of a still refreshing 16.8°C (62.2°F), nearly identical to August's 19°C (66.2°F). September brings Roby a consistent average low-temperature of 10.5°C (50.9°F).Humidity
In September, the average relative humidity in Roby is 82%.Rainfall
In Roby, in September, it is raining for 15.1 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, there are 203.8 rainfall days, and 519mm (20.43") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 41min.On the first day of September in Roby, sunrise is at 6:21 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:50 pm BST.
Sunshine
In September, the average sunshine is 6.9h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the temperature in September in Roby?
What is the average humidity in September in Roby?
How many days does it rain in September in Roby?
When it does not snow in Roby?
How many hours of daylight does Roby have in September?
What time are sunrise and sunset in September in Roby?
How many hours of sunshine does Roby have in September?
How high is the UV index in September in Roby?
Average temperature in September
Roby, United Kingdom
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is July (19.1°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (2.7°C).
Average pressure in September
Roby, United Kingdom
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in September
Roby, United Kingdom
- Average wind speed in September: 14.1km/h
The windiest month (with the highest average wind speed) is January (18.5km/h).
The calmest month (with the lowest average wind speed) is June (12.5km/h).
Average humidity in September
Roby, United Kingdom
- Average humidity in September: 82%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in September
Roby, United Kingdom
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Roby, United Kingdom
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is March (14.1 days).
Average snowfall in September
Roby, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Roby, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Roby, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 6h and 5min
The months with the most sunshine are April, May and July (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Roby, United Kingdom
- Average sunshine days in September: 11.1 days
The month with the most sunshine days is March (13.8 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in September
Roby, 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
Roby, United Kingdom
- Average cloud cover in September: 52
The months with the most cloud cover are January, November and December (Cloud cover 59).
The month with the least cloud cover is April (Cloud cover 48).
Average visibility in September
Roby, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Roby, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
