April weather forecastPorvoo, Finland

April

Weather in April

April sees the first substantial increase in sea temperatures to 1.5°C (34.7°F), signaling the impending warmth of spring. The landscape of Porvoo undergoes a visible transformation as winter snow melts away completely. New plant life flourishes across the city, painting streets and parks in vibrant hues of green. Simultaneously, the extended daylight hours encourage residents to spend more time outdoors, exploring the serene nature trails and historic city centre.

Sea temperature

In Porvoo, Finland, in April, the average water temperature is 1.5°C (34.7°F).
Note: While swimming, this scenario rapidly escalates into a life-threatening situation. Breathing becomes unmanageable, impairing clear thinking. Utilizing a specialized swimsuit is vital to minimize thermal depletion.

Daylight

The average length of the day in April is 14h and 40min.
On the first day of the month, sunrise is at 06:39 and sunset at 20:02. On the last day of April, sunrise is at 05:13 and sunset at 21:15 EEST.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In April, the average sea temperature is 1.5°C (34.7°F). 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.

In April, the average day length in Porvoo is 14h and 40min.

In April, on the first day of the month, sunrise is at 06:39 and sunset at 20:02. On the last day of the month, in Porvoo, Finland, sunrise is at 05:13 and sunset at 21:15 EEST.

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Long-term

Year J F M April M J J A S O N D

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April

May

Average sea temperature

Average daylight

Average sea temperature in April
Porvoo, Finland

Average sea temperature in April: 1.5°C

The best months for swimming (with the highest average sea temperature) are July and August (18.7°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.2°C).

Average daylight in April
Porvoo, Finland

Average daylight in April: 14h and 42min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).