April weather forecast
Iisaku, Estonia

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Weather in April

April holds the promise of warmer weather and greater sunshine hours. Distinct from March, April witnesses with the snow completely replaced by rain, albeit in moderate amounts. As April gives way to May, the weather turns significantly warmer, and the days longer and brighter.

Temperature

The shift from March to April in Iisaku sees an increase in the average high-temperature, transitioning from a wintry 0.4°C (32.7°F) to a chilly 6°C (42.8°F). During April, Iisaku's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 1.2°C (34.2°F).

Humidity

In April, the average relative humidity is 81%.

Rainfall

April is the month with the least rainfall. Rain falls for 11.7 days and accumulates 29mm (1.14") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Iisaku. In Iisaku, in April, during 6.3 snowfall days, 66mm (2.6") of snow is typically accumulated. Throughout the year, in Iisaku, Estonia, there are 90.8 snowfall days, and 773mm (30.43") of snow is accumulated.

Daylight

In April, the average length of the day is 14h and 31min.
On the first day of April in Iisaku, sunrise is at 06:35 and sunset at 19:53. On the last day of the month, sunrise is at 05:13 and sunset at 21:01 EEST.

Sunshine

The average sunshine in April is 7.2h.

UV index

The average daily maximum UV index in April in Iisaku is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: In April, the maximum UV index of 2 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jan 29, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

How cold is April in Iisaku?

The average high-temperature and low-temperature in Iisaku during April are 6°C (42.8°F) and 1.2°C (34.2°F) respectively.

What is the average humidity in April in Iisaku?

In April, the average relative humidity in Iisaku, Estonia, is 81%.

What is the driest month in Iisaku?

April is the month with the least rainfall in Iisaku. Rain falls for 11.7 days and accumulates 29mm (1.14") of precipitation.

How many days does it rain in April in Iisaku?

In April, the rain falls for 11.7 days. Throughout April, 29mm (1.14") of precipitation is accumulated.

How many days does it snow in April in Iisaku?

In Iisaku, Estonia, during April, snow falls for 6.3 days and regularly aggregates up to 66mm (2.6") of snow.

How many hours of daylight does Iisaku have in April?

In Iisaku, the average day length in April is 14h and 31min.

When are sunrise and sunset in April in Iisaku?

On the first day of April in Iisaku, sunrise is at 06:35 and sunset at 19:53. On the last day of the month, sunrise is at 05:13 and sunset at 21:01 EEST.

How long on average sun shines in April in Iisaku?

The average sunshine duration in April is 7.2h.

How high is the UV index in April in Iisaku?

In Iisaku, Estonia, the average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Iisaku, Estonia

Average temperature in April - Iisaku, Estonia
  • Average high temperature in April: 6°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.8°C).

  • Average low temperature in April: 1.2°C

The month with the highest average low temperature is July (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-6°C).

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Average pressure in April
Iisaku, Estonia

Average pressure in April - Iisaku, Estonia
  • Average pressure in April: 1013.8mbar

The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1010mbar).

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Average wind speed in April
Iisaku, Estonia

Average wind speed in April - Iisaku, Estonia
  • Average wind speed in April: 14.6km/h

The windiest month (with the highest average wind speed) is December (20.8km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).

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Average humidity in April
Iisaku, Estonia

Average humidity in April - Iisaku, Estonia
  • Average humidity in April: 81%

The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (73%).

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Average rainfall in April
Iisaku, Estonia

Average rainfall in April - Iisaku, Estonia
  • Average rainfall in April: 29mm

The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (29mm).

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Average rainfall days in April
Iisaku, Estonia

Average rainfall days in April - Iisaku, Estonia
  • Average rainfall days in April: 11.7 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in April
Iisaku, Estonia

Average snowfall in April - Iisaku, Estonia
  • Average snowfall in April: 66mm

The month with the highest snowfall is January (164mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in April
Iisaku, Estonia

Average snowfall days in April - Iisaku, Estonia
  • Average snowfall days in April: 6.3 days

The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Iisaku, Estonia

Average daylight in April / Average sunshine in April - Iisaku, Estonia
  • Average daylight in April: 14h and 3min

The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).

  • Average sunshine in April: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

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Average sunshine days in April
Iisaku, Estonia

Average sunshine days in April - Iisaku, Estonia
  • Average sunshine days in April: 13.7 days

The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (4.6 days).

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Average UV index in April
Iisaku, Estonia

Average UV index in April - Iisaku, Estonia
  • Average UV index in April: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average cloud cover in April
Iisaku, Estonia

Average cloud cover in April - Iisaku, Estonia
  • Average cloud cover in April: 53

The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in April
Iisaku, Estonia

Average visibility in April - Iisaku, Estonia
  • Average visibility in April: 9km

The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is February (7km).

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Iisaku, Estonia

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