Weather in April
Sea temperature
In Hamina, Finland, the average seawater temperature in April is 1.3°C (34.3°F).Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.
Daylight
The average length of the day in April is 14h and 41min.On the first day of the month, sunrise is at 06:35 and sunset at 19:54. On the last day of April, in Hamina, sunrise is at 05:09 and sunset at 21:07 EEST.
FAQ
What is the sea temperature in April in Hamina?
In April, the average sea temperature is 1.3°C (34.3°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
What is the average length of the day in April in Hamina?
The average day length in April in Hamina is 14h and 41min.
When is the sunrise / sunset in April in Hamina?
On the first day of April, sunrise is at 06:35 and sunset at 19:54. On the last day of the month, sunrise is at 05:09 and sunset at 21:07 EEST.
Average sea temperature in April
Hamina, Finland
- Average sea temperature in April: 1.3°C
The best month for swimming (with the highest average sea temperature) is July (19.3°C).
The coldest month (with the lowest average sea temperature) is February (-0.5°C).
Average daylight in April
Hamina, Finland
- Average daylight in April: 14h and 41min
The month with the longest days is June (Average daylight: 18h and 56min).
The month with the shortest days is December (Average daylight: 5h and 52min).
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