September weather forecastCorris, United Kingdom
September
Weather in September
September, the first month of the autumn in Corris, is still a refreshing month, with an average temperature varying between 15°C (59°F) and 9.3°C (48.7°F).Temperature
Corris registers an average high-temperature of a still refreshing 15°C (59°F) with the arrival of September, showing minor deviation from the preceding month. In September, Corris reports a consistent average low-temperature of 9.3°C (48.7°F) during the nights.Humidity
The average relative humidity in September in Corris is 88%.Rainfall
In Corris, in September, during 16.9 rainfall days, 58mm (2.28") of precipitation is typically accumulated. Throughout the year, in Corris, there are 218 rainfall days, and 849mm (33.43") of precipitation is accumulated.Snowfall
In Corris, snow does not fall in June through October.Daylight
In Corris, the average length of the day in September is 12h and 40min.On the first day of September, sunrise is at 6:27 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:54 pm BST.
Sunshine
In Corris, the average sunshine in September is 5.7h.UV index
In Corris, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Corris, United Kingdom
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (1.9°C).
Average pressure in September
Corris, United Kingdom
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in September
Corris, United Kingdom
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is December (19.1km/h).
The calmest month (with the lowest average wind speed) is June (11.9km/h).
Average humidity in September
Corris, United Kingdom
- Average humidity in September: 88%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in September
Corris, United Kingdom
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is December (94mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in September
Corris, United Kingdom
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is November (21 days).
The month with the least rainy days is February (14.7 days).
Average snowfall in September
Corris, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (57mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Corris, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.7 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
Corris, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 5h and 42min
The month with the most sunshine is May (Average sunshine: 7h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Corris, United Kingdom
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is March (11.7 days).
The month with the least sunshine days is November (6.4 days).
Average UV index in September
Corris, 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
Corris, United Kingdom
- Average cloud cover in September: 60
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in September
Corris, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are March, April, November and December (9km).
The months with the lowest visibility are January, February, May, June, July, August, September and October (8km).





