Weather in April
Sea temperature
In Saint-Cast-le-Guildo, France, the average seawater temperature in April is 10.4°C (50.7°F).Note: Entering waters of 10.4°C (50.7°F) is life-endangering. A mere moment in 13°C (55.4°F) waters feels piercing cold, and below 10°C (50°F) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
Daylight
In April, the average length of the day is 13h and 43min.On the first day of April, sunrise is at 07:45 and sunset at 20:40. On the last day of the month, sunrise is at 06:49 and sunset at 21:22 CEST.
Frequently asked questions
What is the sea water temperature in April in Saint-Cast-le-Guildo?
In April, the average sea temperature is 10.4°C (50.7°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 April in Saint-Cast-le-Guildo?
In Saint-Cast-le-Guildo, the average day length in April is 13h and 43min.
When are sunrise and sunset in April in Saint-Cast-le-Guildo?
On the first day of April in Saint-Cast-le-Guildo, France, sunrise is at 07:45 and sunset at 20:40. On the last day of the month, sunrise is at 06:49 and sunset at 21:22 CEST.
Average sea temperature in April
Saint-Cast-le-Guildo, France
- Average sea temperature in April: 10.4°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 April
Saint-Cast-le-Guildo, France
- Average daylight in April: 13h and 4min
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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