April weather forecast and climate
Tallinn, Estonia

A beautiful summer view of an ancient town in Tallinn, Estonia, with a distant view of the sea
A beautiful summer view of an ancient town in Tallinn, Estonia, with a distant view of the sea

Temperature

In Tallinn, the average high-temperature is 9.2°C (48.6°F), and the average low-temperature is 0.6°C (33.1°F).

Humidity

The average relative humidity in Tallinn is 73%.

Rainfall

The month with the least rainfall is April when the rain falls for 8 days and typically collects 30mm (1.2") of precipitation.

Snowfall

Months with snowfall are January through May, October through December.

Sea temperature

In Tallinn, in April, the average water temperature is 1.8°C (35.2°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

In April, the average length of the day is 14.6h.

Sunshine

In April, the average sunshine is 6.2h.

UV index

In Tallinn, the average UV index in April is 3.

What is the temperature in April in Tallinn?

The average high-temperature, in April, in Tallinn, is 9.2°C (48.6°F), while the average low-temperature is 0.6°C (33.1°F).

What is the average humidity in April in Tallinn?

The average relative humidity in April in Tallinn is 73%.

How much does it rain in Tallinn in April?

In April, the rain falls for 8 days. Throughout April, 30mm (1.2") of precipitation is accumulated.

What is the driest month in Tallinn?

April is the month with the least rainfall in Tallinn. Rain falls for 8 days and accumulates 30mm (1.2") of precipitation.

How many days does it snow in April in Tallinn?

In Tallinn, during April, snow falls for 2 days.

What is the sea temperature in April in Tallinn?

In Tallinn, Estonia, in April, the average water temperature is 1.8°C (35.2°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.

How many hours of daylight does Tallinn have in April?

In April, the average length of the day is 14.6h.

How long on average sun shines in April in Tallinn?

In April, the average sunshine is 6.2h.

How high is the UV index in April in Tallinn?

In April, the average UV index in Tallinn is 3.
Average temperature in April - Tallinn, Estonia
  • Average high temperature in April: 9.2°C

The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is February (-1.6°C).

  • Average low temperature in April: 0.6°C

The month with the highest average low temperature is July (12.7°C).
The coldest month (with the lowest average low temperature) is February (-7°C).

Average humidity in April - Tallinn, Estonia
  • Average humidity in April: 73%

Months with the highest relative humidity are January, November and December (88%).
The month with the lowest relative humidity is May (69%).

Average rainfall in April - Tallinn, Estonia
  • Average rainfall in April: 30mm

The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the lowest rainfall) is April (30mm).

Average rainfall days in April - Tallinn, Estonia
  • Average rainfall days in April: 8 days

Months with the highest number of rainy days are September and October (16 days).
The month with the lowest number of rainy days is February (3 days).

Average snowfall days in April - Tallinn, Estonia
  • Average snowfall days in April: 2 days

The month with the highest number of snowfall days is January (14 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in April - Tallinn, Estonia
  • Average sea temperature in April: 1.8°C

The best month for swimming (with the highest average sea temperature) is August (19.1°C).
Coldest months (with the lowest average sea temperature) are February and March (0.2°C).

Average daylight in April / Average sunshine in April - Tallinn, Estonia
  • Average daylight in April: 14.6h

The month with the longest days is June (Average daylight: 18.5h).
The month with shortest days is December (Average daylight: 6.2h).

  • Average sunshine in April: 6.2h

The month with most sunshine is June (Average sunshine: 10.1h).
The month with least sunshine is December (Average sunshine: 0.5h).

Average UV index in April - Tallinn, Estonia
  • Average UV index in April: 3

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

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