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May Weather in Siikainen, Finland

Last updated: August 23, 2025

In Siikainen, Finland, the average temperature in May hovers around 9°C (49°F). Expect a wide range, with minimums dipping to -5°C (23°F) and highs reaching up to 28°C (82°F). During this month, precipitation averages 42 mm (1.7 in) over approximately 8 days, while the average humidity sits at a comfortable 77%.

May Temperature in Siikainen

In May in Siikainen, the average temperature is 9°C (49°F). The maximum can reach 28°C (82°F), while the minimum can be as low as -5°C (23°F). This diverse range of temperatures makes Siikainen an interesting destination for travelers seeking both warmth and a touch of winter chill.

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

The chart illustrates May temperature patterns in Siikainen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siikainen, May typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec262430384960646052433629
Data source: Temperature data for Siikainen 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 Siikainen

In Siikainen in May, the precipitation amount is 42 mm (1.7 in) over the course of 8 days.

May Precipitation Trends in Siikainen

The chart displays monthly precipitation patterns in Siikainen, 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 Siikainen, May typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec4346474342628310676816668
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Siikainen

In Siikainen in May humidity is 77%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor explorations feel colder and more uncomfortable than the thermometer suggests.

May Average Humidity in Siikainen

This chart illustrates the average monthly humidity levels in Siikainen, 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 Siikainen is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%89%85%77%78%78%79%86%90%91%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Siikainen

In Siikainen in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Siikainen.

Maximum UV Index Levels in Siikainen for May

The chart shows the monthly maximum UV Index (UVI) for Siikainen 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 Siikainen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Siikainen 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 Siikainen Compares to Other Months

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

This table compares monthly weather conditions in Siikainen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)42 mm (1.7 inches)92%low
February Weather-4°C (24°F)46 mm (1.8 inches)90%low
March Weather-1°C (30°F)47 mm (1.8 inches)89%moderate
April Weather3°C (38°F)43 mm (1.7 inches)85%moderate
May Weather9°C (49°F)42 mm (1.7 inches)77%moderate
June Weather16°C (61°F)62 mm (2.5 inches)78%high
July Weather18°C (64°F)83 mm (3.3 inches)78%high
August Weather15°C (60°F)106 mm (4.2 inches)79%moderate
September Weather11°C (52°F)76 mm (3.0 inches)86%moderate
October Weather6°C (43°F)81 mm (3.2 inches)90%low
November Weather2°C (36°F)65 mm (2.6 inches)91%low
December Weather-2°C (29°F)68 mm (2.7 inches)89%low

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