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
With September's advent, Horndean, United Kingdom, sees an average high-temperature of a still refreshing 18°C (64.4°F), subtly shifted from August's 19.8°C (67.6°F). Horndean experiences an average low-temperature reading of 12.2°C (54°F) throughout September.Humidity
In Horndean, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, there are 175.3 rainfall days, and 435mm (17.13") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Horndean is 12h and 38min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:49 pm. On the last day of September, in Horndean, United Kingdom, sunrise is at 7:03 am and sunset at 6:43 pm BST.
Sunshine
The average sunshine in September in Horndean is 7.9h.UV index
The average daily maximum UV index in September in Horndean is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are September temperatures in Horndean?
What is the average humidity in September in Horndean?
How many days does it rain in September in Horndean?
When it does not snow in Horndean?
How many hours of daylight does Horndean have in September?
When are sunrise and sunset in September in Horndean?
How many hours of sunshine does Horndean have in September?
What is the UV index reading in September in Horndean?
Average temperature in September
Horndean, United Kingdom
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (3.9°C).
Average pressure in September
Horndean, United Kingdom
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Horndean, United Kingdom
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Horndean, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Horndean, United Kingdom
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (53mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Horndean, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is November (18.4 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Horndean, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Horndean, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 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
Horndean, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Horndean, United Kingdom
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is November (9.3 days).
Average UV index in September
Horndean, 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
Horndean, United Kingdom
- Average cloud cover in September: 43
The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 43).
Average visibility in September
Horndean, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are March and June (10km).
The months with the lowest visibility are January, February, April, May, July, August, September, October, November and December (9km).
Horndean, United Kingdom
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