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May Weather in Muonio, Finland

Last updated: August 23, 2025

In May, the average temperature in Muonio, Finland hovers around 4°C (39°F), with a minimum plunge to -10°C (14°F) and a maximum rise to 23°C (74°F). Expect 55 mm (2.2 in) of precipitation spread over 11 days, contributing to a notably high average humidity of 82%. Prepare for a month that blends chill with occasional warmth and moisture!

May Temperature in Muonio

In May in Muonio, the average temperature is 4°C (39°F). Maximum temperatures can reach 23°C (74°F) and minimums can drop as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures during this time.

May Weather in Muonio: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Muonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Muonio, May typically has an average temperature of 4°C (39°F), with highs reaching up to 23°C (74°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec121120303952595344312216
Data source: Temperature data for Muonio 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.

May Precipitation in Muonio

In Muonio, in May, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

May Precipitation Trends in Muonio

The chart displays monthly precipitation patterns in Muonio, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Muonio, May typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec3433333455679110164825152
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Muonio

In Muonio in May, humidity is 82%. With an average temperature of 4°C (39°F), this humidity feels like a chill that seeps into your bones, making it uncomfortable for traveling as you find yourself bundled up, yet still damp and cold.

May Average Humidity in Muonio

This chart illustrates the average monthly humidity levels in Muonio, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Muonio is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec101%99%92%87%82%78%83%87%91%96%98%101%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Muonio

In Muonio in May, 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 Muonio for better planning.

Maximum UV Index Levels in Muonio for May

The chart shows the monthly maximum UV Index (UVI) for Muonio in May, 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 May, the maximum UV index in Muonio typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345543110
Data source: Muonio May 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 May Weather in Muonio Compares to Other Months

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

This table compares monthly weather conditions in Muonio, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)34 mm (1.3 inches)101%low
February Weather-11°C (12°F)33 mm (1.3 inches)99%low
March Weather-7°C (21°F)33 mm (1.3 inches)92%low
April Weather-1°C (30°F)34 mm (1.3 inches)86%moderate
May Weather4°C (39°F)55 mm (2.2 inches)82%moderate
June Weather11°C (52°F)67 mm (2.6 inches)78%moderate
July Weather15°C (59°F)91 mm (3.6 inches)83%moderate
August Weather12°C (54°F)100 mm (4.0 inches)87%moderate
September Weather7°C (44°F)64 mm (2.5 inches)91%moderate
October Weather0°C (32°F)81 mm (3.2 inches)96%low
November Weather-6°C (22°F)51 mm (2.0 inches)98%low
December Weather-9°C (16°F)52 mm (2.0 inches)101%low

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