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April Weather in Ilomantsi, Finland

Last updated: August 23, 2025

In April, the average temperature in Ilomantsi, Finland hovers around 1°C (35°F), with a range that can dip to a chilly -16°C (4°F) and occasionally rise to a comfortable 18°C (64°F). Expect 46 mm (1.8 in) of precipitation over approximately 10 days, contributing to an average humidity of a humid 88%. Prepare for varied weather as you explore this unique destination!

April Temperature in Ilomantsi

In April in Ilomantsi, the average temperature is 1°C (35°F). Maximum temperatures can reach up to 18°C (64°F), while minimums can drop as low as -16°C (4°F). Be sure to pack warm clothing and layers to comfortably enjoy your travels during this chilly month.

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

The chart illustrates April temperature patterns in Ilomantsi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilomantsi, April typically has an average temperature of 1°C (35°F), with highs reaching up to 18°C (64°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec181825354759625849393123
Data source: Temperature data for Ilomantsi 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 Ilomantsi

In Ilomantsi in April, the precipitation amount is 46 mm (1.8 in) over the course of 10 days.

April Precipitation Trends in Ilomantsi

The chart displays monthly precipitation patterns in Ilomantsi, 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 Ilomantsi, April typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4950544661609510578856171
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ilomantsi

In Ilomantsi in April, humidity is 88%. With an average temperature of 1°C (35°F), this humidity feels like a chilly embrace, making travel quite uncomfortable as the cold moisture clings to your skin, leaving you feeling damp and frigid.

April Average Humidity in Ilomantsi

This chart illustrates the average monthly humidity levels in Ilomantsi, 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 Ilomantsi is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%98%95%88%79%76%83%89%92%95%95%97%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ilomantsi

In Ilomantsi 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 Ilomantsi for better planning.

Maximum UV Index Levels in Ilomantsi for April

The chart shows the monthly maximum UV Index (UVI) for Ilomantsi 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 Ilomantsi typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Ilomantsi 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 Ilomantsi Compares to Other Months

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

This table compares monthly weather conditions in Ilomantsi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)49 mm (1.9 inches)99%low
February Weather-8°C (18°F)50 mm (2.0 inches)98%low
March Weather-4°C (25°F)54 mm (2.1 inches)95%moderate
April Weather1°C (35°F)46 mm (1.8 inches)88%moderate
May Weather9°C (48°F)60 mm (2.4 inches)79%moderate
June Weather15°C (60°F)60 mm (2.3 inches)76%high
July Weather17°C (62°F)95 mm (3.7 inches)83%high
August Weather15°C (59°F)105 mm (4.1 inches)89%moderate
September Weather9°C (49°F)78 mm (3.1 inches)91%moderate
October Weather4°C (40°F)85 mm (3.4 inches)95%low
November Weather0°C (31°F)61 mm (2.4 inches)95%low
December Weather-5°C (24°F)71 mm (2.8 inches)97%low

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