September weather forecastStithians, United Kingdom
September
Weather in September
September, the first month of the autumn in Stithians, is still a refreshing month, with temperature in the range of an average low of 14.4°C (57.9°F) and an average high of 16.5°C (61.7°F).Temperature
September experiences an average high-temperature of a still enjoyable 16.5°C (61.7°F), barely different from August's 17.6°C (63.7°F). During September, Stithians's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 14.4°C (57.9°F).Humidity
In Stithians, the average relative humidity in September is 83%.Rainfall
In September, in Stithians, the rain falls for 9.9 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Stithians, during the entire year, the rain falls for 159.4 days and collects up to 367mm (14.45") of precipitation.Snowfall
January, March through November are months without snowfall in Stithians, United Kingdom.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:00 pm BST.
Sunshine
In Stithians, the average sunshine in September is 7.6h.UV index
In Stithians, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stithians, United Kingdom
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (9.3°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (6.9°C).
Average pressure in September
Stithians, United Kingdom
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Stithians, United Kingdom
- Average wind speed in September: 23.3km/h
The windiest month (with the highest average wind speed) is December (31.6km/h).
The calmest month (with the lowest average wind speed) is July (19.9km/h).
Average humidity in September
Stithians, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is February (79%).
Average rainfall in September
Stithians, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is November (55mm).
The driest month (with the least rainfall) is July (18mm).
Average rainfall days in September
Stithians, United Kingdom
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is November (17.1 days).
The month with the least rainy days is September (9.9 days).
Average snowfall in September
Stithians, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (1mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Stithians, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.5 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Stithians, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 36min
The months with the most sunshine are April and July (Average sunshine: 8h and 30min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).
Average sunshine days in September
Stithians, United Kingdom
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is May (17.5 days).
The month with the least sunshine days is November (10.2 days).
Average UV index in September
Stithians, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Stithians, United Kingdom
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Stithians, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
