September weather forecastSaint Leonards, 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 Saint Leonards, United Kingdom.Note: For most, swimming in 17.5°C (63.5°F) is not a pleasant experience. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes more difficult.
Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:42 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:37 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
September is the month with the warmest seawater, with an average sea temperature of 17.5°C (63.5°F).
In Saint Leonards, the average seawater temperature in September is 17.5°C (63.5°F). For most, swimming in 17.5°C (63.5°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
In September, the average day length in Saint Leonards, United Kingdom, is 12h and 38min.
In September, on the first day of the month, sunrise is at 6:12 am and sunset at 7:42 pm. On the last day of the month, in Saint Leonards, United Kingdom, sunrise is at 6:57 am and sunset at 6:37 pm BST.
Average sea temperature in September
Saint Leonards, 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 (8°C).
Average daylight in September
Saint Leonards, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
