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May Weather in Siewierz, Poland

Last updated: August 27, 2025

In Siewierz, Poland during May, the average temperature hovers around 13°C (56°F). However, be prepared for a wide range, as temperatures can dip to a chilling -2°C (29°F) at night, while sunny days may reach up to 29°C (85°F). Rainfall is also a factor, with an average precipitation of 89 mm (3.5 in) spread over 15 days, and you'll find the air quite moist with an average humidity of 65%.

May Temperature in Siewierz

In May in Siewierz, the average temperature is 13°C (56°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as -2°C (29°F). This range makes it a good month for travelers to experience mild weather, but they should be prepared for both warmth and cooler temperatures.

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

The chart illustrates May temperature patterns in Siewierz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siewierz, May typically has an average temperature of 13°C (56°F), with highs reaching up to 29°C (85°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec303339485666676759514234
Data source: Temperature data for Siewierz 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 Siewierz

In Siewierz in May, the precipitation amount is 89 mm (3.5 in) during 15 days of the month.

May Precipitation Trends in Siewierz

The chart displays monthly precipitation patterns in Siewierz, 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 Siewierz, May typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4356466489859610295714660
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Siewierz

In Siewierz in May humidity is 65%. With an average temperature of 13°C (56°F), this humidity feels like a cool, refreshing embrace, providing a pleasant backdrop for traveling as long as you're prepared for the occasional dampness in the air.

May Average Humidity in Siewierz

This chart illustrates the average monthly humidity levels in Siewierz, 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 Siewierz is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%79%65%66%67%67%72%83%90%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Siewierz

In Siewierz in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Siewierz.

Maximum UV Index Levels in Siewierz for May

The chart shows the monthly maximum UV Index (UVI) for Siewierz 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 Siewierz typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876321
Data source: Siewierz 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 Siewierz Compares to Other Months

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

This table compares monthly weather conditions in Siewierz, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)43 mm (1.7 inches)90%low
February Weather1°C (34°F)56 mm (2.2 inches)88%low
March Weather4°C (39°F)46 mm (1.8 inches)86%moderate
April Weather9°C (48°F)64 mm (2.5 inches)79%moderate
May Weather13°C (56°F)89 mm (3.5 inches)65%high
June Weather19°C (66°F)85 mm (3.3 inches)66%very high
July Weather19°C (67°F)96 mm (3.8 inches)67%very high
August Weather20°C (68°F)102 mm (4.0 inches)67%high
September Weather15°C (59°F)95 mm (3.7 inches)72%high
October Weather10°C (51°F)71 mm (2.8 inches)83%moderate
November Weather5°C (42°F)46 mm (1.8 inches)90%low
December Weather1°C (35°F)60 mm (2.4 inches)92%low

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