January
Weather in January
January in Alderney, Guernsey, sees notably reduced hours of daylight, plunging depths of winter. On average, a fairly brief stint of sunlight graces Alderney, as daylight hovers around 8.7 hours per day. Sea temperatures record a cooling trend from the preceding month, offering chilly waters for the brave. January's weather is characterised by its cold, dark days, making for the quintessential winter period in Alderney. Moving into February, conditions marginally improve but the winter strength continues to dominate.
Note: Immersing oneself in 10.1°C (50.2°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
On the first day of January, sunrise is at 08:05 and sunset at 16:18. On the last day of the month, sunrise is at 07:43 and sunset at 17:01 GMT.
Sea temperature
In January, the average sea temperature is 10.1°C (50.2°F).Note: Immersing oneself in 10.1°C (50.2°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In Alderney, Guernsey, the average length of the day in January is 8h and 41min.On the first day of January, sunrise is at 08:05 and sunset at 16:18. On the last day of the month, sunrise is at 07:43 and sunset at 17:01 GMT.
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 water temperature in January?
In Alderney, in January, the average water temperature is 10.1°C (50.2°F). Swimming in 10.1°C (50.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
What is the average length of the day in January?
In January, the average day length is 8h and 41min.
What time are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 08:05 and sunset at 16:18. On the last day of the month, sunrise is at 07:43 and sunset at 17:01 GMT.
Average sea temperature in January
Alderney, Guernsey
- Average sea temperature in January: 10.1°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 January
Alderney, Guernsey
- Average daylight in January: 8h and 4min
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).
