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April Weather in Iisaku, Estonia

Last updated: August 23, 2025

In April, the average temperature in Iisaku, Estonia hovers around 4°C (39°F). Expect a chilly range with minimums dipping to -10°C (15°F) and maximums climbing to 18°C (65°F). The weather isn't too dry, with an average precipitation of 50 mm (2.0 in) spread over 11 days and humidity levels reaching a high 87%. Prepare accordingly for your visit!

April Temperature in Iisaku

In April in Iisaku, the average temperature is 4°C (39°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -10°C (15°F). It's important to pack warm clothing if you're planning to visit, as temperatures can vary significantly throughout the day.

April Weather in Iisaku: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Iisaku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iisaku, April typically has an average temperature of 4°C (39°F), with highs reaching up to 18°C (65°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec272630395163656355453829
Data source: Temperature data for Iisaku generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Iisaku

In Iisaku in April, the precipitation amount is 50 mm (2.0 in) over the course of 11 days.

April Precipitation Trends in Iisaku

The chart displays monthly precipitation patterns in Iisaku, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Iisaku, April typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec4950485062647990741007670
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Iisaku

In Iisaku in April, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.

April Average Humidity in Iisaku

This chart illustrates the average monthly humidity levels in Iisaku, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Iisaku is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%90%87%73%77%80%84%89%93%93%93%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Iisaku

In Iisaku in April, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Iisaku for better planning.

Maximum UV Index Levels in Iisaku for April

The chart shows the monthly maximum UV Index (UVI) for Iisaku in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Iisaku typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457764211
Data source: Iisaku April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Iisaku Compares to Other Months

Weather in Iisaku varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Iisaku, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Iisaku, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)49 mm (1.9 inches)95%low
February Weather-3°C (26°F)49 mm (1.9 inches)93%low
March Weather-1°C (30°F)48 mm (1.9 inches)90%moderate
April Weather4°C (39°F)50 mm (2.0 inches)87%moderate
May Weather11°C (51°F)62 mm (2.5 inches)73%moderate
June Weather17°C (63°F)64 mm (2.5 inches)77%high
July Weather18°C (66°F)79 mm (3.1 inches)80%high
August Weather17°C (63°F)90 mm (3.6 inches)84%high
September Weather13°C (55°F)74 mm (2.9 inches)89%moderate
October Weather7°C (46°F)100 mm (3.9 inches)92%low
November Weather3°C (38°F)76 mm (3.0 inches)93%low
December Weather-2°C (29°F)70 mm (2.7 inches)93%low

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