September weather forecastUpper Helmsley, United Kingdom
September
Weather in September
September, the first month of the autumn in Upper Helmsley, is also an enjoyable month, with an average temperature varying between 9.7°C (49.5°F) and 17.4°C (63.3°F).Temperature
Upper Helmsley starts September with an average high-temperature of a still enjoyable 17.4°C (63.3°F), hinting at a minimal fluctuation from August. An average nighttime temperature of 9.7°C (49.5°F) is recorded in Upper Helmsley during September.Humidity
The average relative humidity in September in Upper Helmsley, United Kingdom, is 81%.Rainfall
In Upper Helmsley, during September, the rain falls for 12.5 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, in Upper Helmsley, there are 172.6 rainfall days, and 382mm (15.04") of precipitation is accumulated.Snowfall
In Upper Helmsley, snow does not fall in May through October.Daylight
In September, the average length of the day in Upper Helmsley is 12h and 41min.On the first day of September in Upper Helmsley, sunrise is at 6:13 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:42 pm BST.
Sunshine
In September, the average sunshine is 6.9h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Upper Helmsley. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Upper Helmsley, United Kingdom
- Average high temperature in September: 17.4°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Upper Helmsley, United Kingdom
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in September
Upper Helmsley, United Kingdom
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is February (16.4km/h).
The calmest month (with the lowest average wind speed) is June (11.8km/h).
Average humidity in September
Upper Helmsley, United Kingdom
- Average humidity in September: 81%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Upper Helmsley, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Upper Helmsley, United Kingdom
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in September
Upper Helmsley, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Upper Helmsley, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 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 Helmsley, 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 30min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is July (Average sunshine: 7h and 24min).
The months with the least sunshine are February and November (Average sunshine: 3h and 54min).
Average sunshine days in September
Upper Helmsley, United Kingdom
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is December (14.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Upper Helmsley, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Upper Helmsley, United Kingdom
- Average cloud cover in September: 53
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in September
Upper Helmsley, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, July and August (9km).
The months with the lowest visibility are January, June, September, October, November and December (8km).
