April weather - Spring 2024 - Helsinki, Finland

Weather in April
Frequently asked questions
Average temperature in April
Average rainfall in April
Average rainfall days in April
Average snowfall in April
Average sea temperature in April
Average daylight in April
Average sunshine in April
Average UV index in April

A scenic reflection in the water of the illuminated city of Helsinki in Finland

Weather in April

April embodies a definite spring environment characterized by increased warmth in Helsinki. With the absence of snowfall, the city adopts a fresh, vibrant look. Daylight extends to an inviting 14.6h, a stark contrast to the dim winter months. Though cooler compared to the forthcoming months, temperatures present a perceivable rise, peaking at 7.6°C (45.7°F). Occurrences of rainfall are sparse, further contributing to the agreeable climate of the month.

Temperature

The shift into April in Helsinki, Finland, brings an increase in the average high-temperature, moving from a cold 1.6°C (34.9°F) in March to a chilly 7.6°C (45.7°F). Helsinki experiences an average low-temperature reading of 0.8°C (33.4°F) throughout April.

Rainfall

The month with the least rainfall is April, when the rain falls for 11 days and typically collects 32mm (1.26") of precipitation.

Snowfall

In Helsinki, snow does not fall in April through October.

Sea temperature

In Helsinki, in April, the average water temperature is 2°C (35.6°F).
Note: In swimming, this scenario poses immediate life-threatening danger. Breathing control is totally lost and logical thinking nearly impossible. Wearing a specialized swimsuit is critical to limit thermal loss.

Daylight

The average length of the day in April is 14h and 38min.
On the first day of April, sunrise is at 06:43 and sunset at 20:04. On the last day of the month, sunrise is at 05:17 and sunset at 21:16 EEST.

Sunshine

The average sunshine in April in Helsinki is 6.5h.

UV index

In Helsinki, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 3 in April translates into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

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Frequently asked questions

What are April temperatures in Helsinki?

April temperatures in Helsinki vary between a high-temperature of 7.6°C (45.7°F) and a low-temperature of 0.8°C (33.4°F).

What is the driest month in Helsinki?

The month with the least rainfall in Helsinki is April, when the rain falls for 11 days and typically collects 32mm (1.26") of precipitation.

How many days does it rain in April in Helsinki?

In Helsinki, Finland, during April, the rain falls for 11 days and regularly aggregates up to 32mm (1.26") of precipitation.

When it does not snow in Helsinki?

In Helsinki, Finland, snow does not fall in April through October.

Does it snow in Helsinki in April?

In April, it doesn't snow. March is the latest month when it typically snows.

What is the water temperature in April in Helsinki?

In Helsinki, Finland, in April, the average water temperature is 2°C (35.6°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the average length of the day in April in Helsinki?

In Helsinki, Finland, the average day length in April is 14h and 38min.

When is the sunrise / sunset in April in Helsinki?

On the first day of April, sunrise is at 06:43 and sunset at 20:04. On the last day of the month, sunrise is at 05:17 and sunset at 21:16 EEST.

How long on average sun shines in April in Helsinki?

In Helsinki, Finland, the average sunshine duration in April is 6.5h.

What is the UV index reading in April in Helsinki?

In Helsinki, Finland, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Mar

April

May

Average high temperature

1.6°C 34.9°F

7.6°C 45.7°F

14.4°C 57.9°F

Average low temperature

Average rainfall

Average rainfall days

Average snowfall

140mm 5.51"

0mm 0"

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in April
Helsinki, Finland

Average high temperature in April: 7.6°C

The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is February (-1.9°C).

Average low temperature in April: 0.8°C

The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (-7.4°C).

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Average rainfall in April
Helsinki, Finland

Average rainfall in April: 32mm

The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the least rainfall) is April (32mm).

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Average rainfall days in April
Helsinki, Finland

Average rainfall days in April: 11 days

The month with the highest number of rainy days is December (20 days).
The months with the least rainy days are April and May (11 days).

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Average snowfall in April
Helsinki, Finland

Average snowfall in April: 0mm

The month with the highest snowfall is February (230mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average sea temperature in April
Helsinki, Finland

Average sea temperature in April: 2°C

The best month for swimming (with the highest average sea temperature) is August (16°C).
The coldest months (with the lowest average sea temperature) are February and March (1°C).

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Average daylight in April /
Average sunshine in April
Helsinki, Finland

Average daylight in April: 14h and 4min

The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).

Average sunshine in April: 6h and 3min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).

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Average UV index in April
Helsinki, Finland

Average UV index in April: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 0).

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April weather forecast
Helsinki, Finland

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