September weather forecastSheerness, United Kingdom
September
Weather in September
Sea temperature
With an average sea temperature of 17.5°C (63.5°F), September is the month with the warmest seawater in Sheerness, United Kingdom.Note: For most, swimming in 17.5°C (63.5°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 September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:42 pm. On the last day of September, in Sheerness, sunrise is at 6:56 am and sunset at 6:36 pm BST.
Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the warmest seawater in Sheerness is September, with an average sea temperature of 17.5°C (63.5°F).
In September, the average sea temperature in Sheerness is 17.5°C (63.5°F). Swimming in 17.5°C (63.5°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
In Sheerness, United Kingdom, the average day length in September is 12h and 38min.
On the first day of September, sunrise is at 6:10 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:36 pm BST.
Average sea temperature in September
Sheerness, United Kingdom
- Average sea temperature in September: 17.5°C
The best month for swimming (with the highest average sea temperature) is September (17.5°C).
The coldest month (with the lowest average sea temperature) is March (7.8°C).
Average daylight in September
Sheerness, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).





