Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's average high-temperature is a refreshing 18.8°C (65.8°F), maintaining a close comparison with August's 21.6°C (70.9°F). Throughout the September nights, Dollis Hill encounters a low-temperature of 11.2°C (52.2°F).Humidity
The average relative humidity in September in Dollis Hill, United Kingdom, is 77%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, there are 165.8 rainfall days, and 345mm (13.58") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Dollis Hill is 12h and 38min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:40 pm BST.
Sunshine
In Dollis Hill, the average sunshine in September is 7.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What is the average September temperature in Dollis Hill?
What is the average humidity in September in Dollis Hill?
How many days does it rain in September in Dollis Hill?
When it does not snow in Dollis Hill?
How many hours of daylight does Dollis Hill have in September?
When is the sunrise / sunset in September in Dollis Hill?
How many hours of sunshine does Dollis Hill have in September?
How high is the UV index in September in Dollis Hill?
Average temperature in September
Dollis Hill, United Kingdom
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in September
Dollis Hill, United Kingdom
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Dollis Hill, United Kingdom
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Dollis Hill, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Dollis Hill, United Kingdom
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in September
Dollis Hill, United Kingdom
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in September
Dollis Hill, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Dollis Hill, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Dollis Hill, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 1min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Dollis Hill, United Kingdom
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is December (16.3 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Dollis Hill, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and 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
Dollis Hill, United Kingdom
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in September
Dollis Hill, 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).
Dollis Hill, United Kingdom
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