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 the advent of September, Horham's high-temperatures adjust to a refreshing 18.3°C (64.9°F), closely aligning with the preceding month. Horham encounters a steady low-temperature average of 12.3°C (54.1°F) throughout the month of September.Humidity
In Horham, the average relative humidity in September is 78%.Rainfall
In Horham, in September, during 11.3 rainfall days, 17mm (0.67") of precipitation is typically accumulated. In Horham, during the entire year, the rain falls for 159.6 days and collects up to 268mm (10.55") of precipitation.Snowfall
In Horham, snow does not fall in May through October.Daylight
The average length of the day in September in Horham is 12h and 40min.On the first day of September in Horham, sunrise is at 6:07 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:34 pm BST.
Sunshine
In September, the average sunshine in Horham is 7.7h.UV index
In September, the average daily maximum UV index in Horham is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take precautions - Protection against sunburn is recommended. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the average September temperature in Horham?
What is the average humidity in September in Horham?
How many days does it rain in September in Horham?
When it does not snow in Horham?
What is the average length of the day in September in Horham?
What time are sunrise and sunset in September in Horham?
How many hours of sunshine does Horham have in September?
How high is the UV index in September in Horham?
Average temperature in September
Horham, United Kingdom
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in September
Horham, 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 (1010.2mbar).
Average wind speed in September
Horham, United Kingdom
- Average wind speed in September: 14.8km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is July (13.7km/h).
Average humidity in September
Horham, United Kingdom
- Average humidity in September: 78%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Horham, United Kingdom
- Average rainfall in September: 17mm
The wettest months (with the highest rainfall) are July and December (29mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Horham, United Kingdom
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in September
Horham, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Horham, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 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
Horham, United Kingdom
- Average daylight in September: 12h and 4min
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 4min
The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Horham, United Kingdom
- Average sunshine days in September: 15.1 days
The months with the most sunshine days are March and April (15.3 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Horham, 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
Horham, United Kingdom
- Average cloud cover in September: 44
The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Horham, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Horham, United Kingdom
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