Weather in January
Sea temperature
In Saint-Cast-le-Guildo, France, in January, the average water temperature is 9°C (48.2°F).Note: Swimming at temperatures less than 10°C (50°F) in 9°C (48.2°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.
Daylight
In January, the average length of the day is 8h and 49min.On the first day of the month, sunrise is at 09:01 and sunset at 17:23. On the last day of January, sunrise is at 08:40 and sunset at 18:04 CET.
Frequently asked questions
How cold is the water in January in Saint-Cast-le-Guildo?
In Saint-Cast-le-Guildo, France, in January, the average water temperature is 9°C (48.2°F). Swimming in 9°C (48.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
What is the average length of the day in January in Saint-Cast-le-Guildo?
In Saint-Cast-le-Guildo, France, the average day length in January is 8h and 49min.
When is the sunrise / sunset in January in Saint-Cast-le-Guildo?
On the first day of January in Saint-Cast-le-Guildo, sunrise is at 09:01 and sunset at 17:23. On the last day of the month, sunrise is at 08:40 and sunset at 18:04 CET.
Average sea temperature in January
Saint-Cast-le-Guildo, France
- Average sea temperature in January: 9°C
The best month for swimming (with the highest average sea temperature) is September (18.2°C).
The coldest month (with the lowest average sea temperature) is February (8.7°C).
Average daylight in January
Saint-Cast-le-Guildo, France
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
Saint-Cast-le-Guildo, France
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