Weather in September
Sea temperature
August and September, with an average sea temperature of 13.9°C (57°F), are months with the warmest seawater in Isle of Bute, United Kingdom.Note: Immersing oneself in 13.9°C (57°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In Isle of Bute, the average length of the day in September is 12h and 44min.On the first day of September, sunrise is at 6:26 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 6:57 pm BST.
Frequently asked questions
What months are the sea warmest in Isle of Bute?
The months with the warmest seawater in Isle of Bute, United Kingdom, are August and September, with an average sea temperature of 13.9°C (57°F).
How cold is the water in September in Isle of Bute?
In Isle of Bute, United Kingdom, in September, the average water temperature is 13.9°C (57°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
What is the average length of the day in September in Isle of Bute?
The average day length in September in Isle of Bute, United Kingdom, is 12h and 44min.
When are sunrise and sunset in September in Isle of Bute?
On the first day of September in Isle of Bute, sunrise is at 6:26 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 6:57 pm BST.
Average sea temperature in September
Isle of Bute, United Kingdom
- Average sea temperature in September: 13.9°C
The best months for swimming (with the highest average sea temperature) are August and September (13.9°C).
The coldest month (with the lowest average sea temperature) is March (7.7°C).
Average daylight in September
Isle of Bute, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
Isle of Bute, United Kingdom
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