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 sea temperature 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
The shift from August to September is characterized by an average high-temperature of a still enjoyable 17.2°C (63°F), not significantly different from the 19.5°C (67.1°F) of August. Hornsea, during the month of September, experiences an average low-temperature of 11.1°C (52°F).Humidity
In September, the average relative humidity in Hornsea is 80%.Rainfall
In September, the rain falls for 10.9 days. Throughout September, 14mm (0.55") of precipitation is accumulated. Throughout the year, there are 146.7 rainfall days, and 245mm (9.65") of precipitation is accumulated.Snowfall
In Hornsea, United Kingdom, snow does not fall in April through October.Sea temperature
In Hornsea, United Kingdom, in September, the average water temperature is 15.1°C (59.2°F).Note: For most, swimming in 15.1°C (59.2°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Hornsea, the average length of the day in September is 12h and 41min.On the first day of September in Hornsea, sunrise is at 6:10 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:39 pm BST.
Sunshine
In Hornsea, the average sunshine in September is 7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What is the temperature in September in Hornsea?
What is the average humidity in September in Hornsea?
How many days does it rain in September in Hornsea?
When it does not snow in Hornsea?
What is the sea water temperature in September in Hornsea?
What is the average length of the day in September in Hornsea?
When is the sunrise / sunset in September in Hornsea?
How many hours of sunshine does Hornsea have in September?
How high is the UV index in September in Hornsea?
Average temperature in September
Hornsea, United Kingdom
- Average high temperature in September: 17.2°C
The warmest months (with the highest average high temperature) are July and August (19.5°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Hornsea, 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 (1008.9mbar).
Average wind speed in September
Hornsea, United Kingdom
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest months (with the lowest average wind speed) are June and July (13.2km/h).
Average humidity in September
Hornsea, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Hornsea, United Kingdom
- Average rainfall in September: 14mm
The wettest months (with the highest rainfall) are June and August (30mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Hornsea, United Kingdom
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (10.1 days).
Average snowfall in September
Hornsea, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hornsea, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in September
Hornsea, United Kingdom
- Average sea temperature in September: 15.1°C
The best month for swimming (with the highest average sea temperature) is August (15.7°C).
The coldest months (with the lowest average sea temperature) are February and March (6.6°C).
Average daylight in September /
Average sunshine in September
Hornsea, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 7h and 0min
The months with the most sunshine are July and August (Average sunshine: 7h and 42min).
The months with the least sunshine are February and November (Average sunshine: 3h and 48min).
Average sunshine days in September
Hornsea, United Kingdom
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is April (17.3 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Hornsea, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is 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
Hornsea, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 49).
Average visibility in September
Hornsea, 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).
Hornsea, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
