Weather in April
April sparks a notable upswing at Keflavík International Airport, with the sea temperatures climbing to a more bearable 5.8°C (42.4°F). This time of the year signals a clear transition from the cold months as April showers begin to wash away the winter blues. Daylight is significantly prolonged, casting new shadows on the landscape as the sun rises earlier and sets later. Softer breezes that characterize this period also bring a delightful experience as the region transitions from winter to spring. Patrons should be prepared for intermittent showers which are not uncommon at this time of the year.
Note: Without suitable protection, venturing into 5.8°C (42.4°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
On the first day of the month, sunrise is at 06:46 and sunset at 20:22. On the last day of April, in Keflavík International Airport, sunrise is at 05:04 and sunset at 21:50 GMT.
[Resources]Sea temperature
In Keflavík International Airport, the average seawater temperature in April is 5.8°C (42.4°F).Note: Without suitable protection, venturing into 5.8°C (42.4°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
Daylight
In Keflavík International Airport, Iceland, the average length of the day in April is 15h and 8min.On the first day of the month, sunrise is at 06:46 and sunset at 20:22. On the last day of April, in Keflavík International Airport, sunrise is at 05:04 and sunset at 21:50 GMT.
Frequently asked questions
How cold is the water in April in Keflavík International Airport?
In April, the average sea temperature in Keflavík International Airport, Iceland, is 5.8°C (42.4°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.
How many hours of daylight does Keflavík International Airport have in April?
The average day length in April in Keflavík International Airport is 15h and 8min.
What time are sunrise and sunset in April in Keflavík International Airport?
In April, on the first day of the month, sunrise is at 06:46 and sunset at 20:22. On the last day of the month, in Keflavík International Airport, Iceland, sunrise is at 05:04 and sunset at 21:50 GMT.
Average sea temperature in April
Keflavík International Airport, Iceland
- Average sea temperature in April: 5.8°C
The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in April
Keflavík International Airport, Iceland
- Average daylight in April: 15h and 1min
The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 30min).
Keflavík International Airport, Iceland
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