October
Weather in October
Cooler shades of weather start to settle in Alderney as October takes charge, signalling that autumn is in the air. Daylight hours calibrate down to nearly 10.8 per day, continuing the decreasing trend from September. Sea temperatures also tune down to a cooler 16.3°C (61.3°F), correlating with the onset of chillier weather. The month of October is attributed with its calm yet increasingly crisp days that mark the progression towards the end of the year.
Note: Most people do not enjoy swimming in water of 16.3°C (61.3°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
On the first day of the month, sunrise is at 07:09 and sunset at 18:47 BST. On the last day of October, sunrise is at 06:57 and sunset at 16:47 GMT.
Note: On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from BST to GMT. Daylight Saving Time starts again on Sunday, 30. March 2025, at 01:00; consequently, the time zone reverts from GMT to BST.
Sea temperature
In Alderney, the average seawater temperature in October is 16.3°C (61.3°F).Note: Most people do not enjoy swimming in water of 16.3°C (61.3°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Alderney, the average length of the day in October is 10h and 45min.On the first day of the month, sunrise is at 07:09 and sunset at 18:47 BST. On the last day of October, sunrise is at 06:57 and sunset at 16:47 GMT.
Note: On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from BST to GMT. Daylight Saving Time starts again on Sunday, 30. March 2025, at 01:00; consequently, the time zone reverts from GMT to BST.
Updated: Jun 5, 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
What is the sea water temperature in October?
In Alderney, the average seawater temperature in October is 16.3°C (61.3°F). For swimming, a surface water temperature of 16.3°C (61.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
What is the average length of the day in October?
The average day length in October is 10h and 45min.
When are sunrise and sunset in October?
In October, on the first day of the month, sunrise is at 07:09 and sunset at 18:47 BST. On the last day of the month, sunrise is at 06:57 and sunset at 16:47 GMT.
When does Daylight Saving Time (DST) end in October?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from BST to GMT. The next DST starts on Sunday, 30. March 2025, at 01:00.
Average sea temperature in October
Alderney, Guernsey
- Average sea temperature in October: 16.3°C
The best month for swimming (with the highest average sea temperature) is September (17.4°C).
The coldest month (with the lowest average sea temperature) is March (9.3°C).
Average daylight in October
Alderney, Guernsey
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
