September weather forecastGrayrigg, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a mild month in Grayrigg, United Kingdom, with an average temperature varying between 13.6°C (56.5°F) and 7.5°C (45.5°F).Temperature
September denotes a minimal variation in the average high-temperature to a still refreshing 13.6°C (56.5°F) from August's 15.5°C (59.9°F). Grayrigg, during the nights of September, experiences an average temperature drop to a chilly 7.5°C (45.5°F).Humidity
In Grayrigg, the average relative humidity in September is 91%.Rainfall
In Grayrigg, during September, the rain falls for 17.4 days and regularly aggregates up to 55mm (2.17") of precipitation. In Grayrigg, during the entire year, the rain falls for 219.4 days and collects up to 817mm (32.17") of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Grayrigg, the average length of the day in September is 12h and 42min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:01 pm. On the last day of September, in Grayrigg, sunrise is at 7:11 am and sunset at 6:48 pm BST.
Sunshine
The average sunshine in September in Grayrigg is 4.5h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grayrigg, United Kingdom
- Average high temperature in September: 13.6°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is August (9.1°C).
The coldest month (with the lowest average low temperature) is January (-0.2°C).
Average pressure in September
Grayrigg, United Kingdom
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.1mbar).
Average wind speed in September
Grayrigg, United Kingdom
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is December (18.7km/h).
The calmest months (with the lowest average wind speed) are June and July (12.1km/h).
Average humidity in September
Grayrigg, United Kingdom
- Average humidity in September: 91%
The months with the highest relative humidity are January, November and December (93%).
The months with the lowest relative humidity are April and May (86%).
Average rainfall in September
Grayrigg, United Kingdom
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is June (86mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in September
Grayrigg, United Kingdom
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (13.3 days).
Average snowfall in September
Grayrigg, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (93mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Grayrigg, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 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
Grayrigg, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 4h and 30min
The months with the most sunshine are April and May (Average sunshine: 5h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 30min).
Average sunshine days in September
Grayrigg, United Kingdom
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is March (11.6 days).
The month with the least sunshine days is July (4.5 days).
Average UV index in September
Grayrigg, United Kingdom
- Average UV index in September: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Grayrigg, United Kingdom
- Average cloud cover in September: 72
The months with the most cloud cover are January, November and December (Cloud cover 75).
The month with the least cloud cover is April (Cloud cover 62).
Average visibility in September
Grayrigg, United Kingdom
- Average visibility in September: 7km
The months with the highest visibility are February, March, April, May, June and October (8km).
The months with the lowest visibility are January, July, August, September, November and December (7km).
