September weather forecastUpper Dean, United Kingdom
September
Weather in September
September, the first month of the autumn in Upper Dean, is also an enjoyable month, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 10.5°C (50.9°F).Temperature
The advent of September denotes an average high-temperature of a comfortable 18.3°C (64.9°F), subtly different from August's 20.8°C (69.4°F). In Upper Dean, the average nighttime temperature during September is a cool 10.5°C (50.9°F).Humidity
In Upper Dean, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall in Upper Dean is September, when the rain falls for 10.5 days and typically collects 19mm (0.75") of precipitation.Snowfall
April through October are months without snowfall in Upper Dean.Daylight
The average length of the day in September in Upper Dean is 12h and 39min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:49 pm. On the last day of September, in Upper Dean, United Kingdom, sunrise is at 7:02 am and sunset at 6:41 pm BST.
Sunshine
In Upper Dean, the average sunshine in September is 7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Upper Dean, United Kingdom
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (13.1°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Upper Dean, United Kingdom
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Upper Dean, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is December (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in September
Upper Dean, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Upper Dean, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in September
Upper Dean, United Kingdom
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Upper Dean, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Upper Dean, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 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
Upper Dean, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is August (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Upper Dean, United Kingdom
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Upper Dean, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is 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
Upper Dean, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 50).
Average visibility in September
Upper Dean, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
