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April Weather in Ruhnu, Estonia

Last updated: August 23, 2025

In April, the average temperature in Ruhnu, Estonia hovers around 4°C (39°F). Expect a chilly atmosphere with minimum temperatures dipping as low as -2°C (28°F) and peaking at a comfortable 13°C (55°F). This month also brings about 28 mm (1.1 in) of precipitation, with light rain expected on approximately 6 days. The air remains quite damp, with an average humidity of 87%.

April Temperature in Ruhnu

In April in Ruhnu, the average temperature is 4°C (39°F). Maximums can reach 13°C (55°F), while minimums can drop to as low as -2°C (28°F). Be sure to pack warm clothing if you plan to visit during this time!

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

The chart illustrates April temperature patterns in Ruhnu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ruhnu, April typically has an average temperature of 4°C (39°F), with highs reaching up to 13°C (55°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec343234394860656559514437
Data source: Temperature data for Ruhnu 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 Ruhnu

In Ruhnu in April, the precipitation amount is 28 mm (1.1 in) over the course of 6 days.

April Precipitation Trends in Ruhnu

The chart displays monthly precipitation patterns in Ruhnu, 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 Ruhnu, April typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec4843472835457791921088764
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ruhnu

In Ruhnu 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 Ruhnu

This chart illustrates the average monthly humidity levels in Ruhnu, 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 Ruhnu is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%90%87%72%76%76%80%87%91%92%93%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ruhnu

In Ruhnu 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 Ruhnu for better planning.

Maximum UV Index Levels in Ruhnu for April

The chart shows the monthly maximum UV Index (UVI) for Ruhnu 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 Ruhnu typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Ruhnu 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 Ruhnu Compares to Other Months

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

This table compares monthly weather conditions in Ruhnu, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)48 mm (1.9 inches)93%low
February Weather0°C (32°F)43 mm (1.7 inches)91%low
March Weather1°C (34°F)47 mm (1.9 inches)90%moderate
April Weather4°C (39°F)28 mm (1.1 inches)87%moderate
May Weather9°C (48°F)35 mm (1.4 inches)72%high
June Weather16°C (60°F)45 mm (1.8 inches)76%high
July Weather18°C (65°F)77 mm (3.0 inches)76%high
August Weather18°C (65°F)91 mm (3.6 inches)80%high
September Weather15°C (59°F)92 mm (3.6 inches)87%moderate
October Weather11°C (51°F)108 mm (4.2 inches)91%low
November Weather7°C (44°F)87 mm (3.4 inches)92%low
December Weather3°C (37°F)64 mm (2.5 inches)93%low

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