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
September
Weather in September
Temperature
Southport marks the arrival of September with an average high-temperature of a still comfortable 16.5°C (61.7°F), hardly different from August's 18.1°C (64.6°F). Southport documents an average low-temperature of 12.2°C (54°F) for the nights of September.Humidity
The average relative humidity in September is 80%.Rainfall
In Southport, in September, it is raining for 17.4 days, with typically 61mm (2.4") of accumulated precipitation. Throughout the year, in Southport, United Kingdom, there are 234.5 rainfall days, and 803mm (31.61") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Southport, United Kingdom, the average length of the day in September is 12h and 41min.On the first day of September in Southport, sunrise is at 6:22 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:50 pm BST.
Sunshine
In Southport, the average sunshine in September is 6.9h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Southport, United Kingdom. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Southport?
What is the average humidity in September in Southport?
How many days does it rain in September in Southport?
When it does not snow in Southport?
How many hours of daylight does Southport have in September?
When is the sunrise / sunset in September in Southport?
How long on average sun shines in September in Southport?
When is the highest UV index in Southport?
What is the UV index intensity in September in Southport?
Average temperature in September
Southport, United Kingdom
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (18.2°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in September
Southport, United Kingdom
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in September
Southport, United Kingdom
- Average wind speed in September: 17.6km/h
The windiest month (with the highest average wind speed) is December (23.4km/h).
The calmest month (with the lowest average wind speed) is June (14.8km/h).
Average humidity in September
Southport, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in September
Southport, United Kingdom
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is August (92mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Southport, United Kingdom
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is April (15.5 days).
Average snowfall in September
Southport, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Southport, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Southport, 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 36min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is April (Average sunshine: 8h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in September
Southport, United Kingdom
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in September
Southport, 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
Southport, United Kingdom
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 47).
Average visibility in September
Southport, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are April and October (10km).
The months with the lowest visibility are January, February, March, May, June, July, August, September, November and December (9km).
