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May Weather in Siedlce, Poland

Last updated: August 27, 2025

In May, the average temperature in Siedlce, Poland hovers around 13°C (56°F). Expect a wide range of conditions, with minimum temperatures dipping to -2°C (28°F) and peaks reaching up to 29°C (84°F). Throughout the month, 114 mm (4.5 in) of precipitation is likely spread across about 18 days, contributing to an average humidity level of 69%. Prepare for a mix of cool air and occasional showers!

May Temperature in Siedlce

In May in Siedlce, the average temperature is 13°C (56°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as -2°C (28°F). Visitors should be prepared for a wide range of temperatures while planning their travel to Siedlce.

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

The chart illustrates May temperature patterns in Siedlce, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siedlce, May typically has an average temperature of 13°C (56°F), with highs reaching up to 29°C (84°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec303439485666666758504234
Data source: Temperature data for Siedlce 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 Siedlce

In Siedlce in May, the precipitation amount is 114 mm (4.5 in) over the course of 18 days.

May Precipitation Trends in Siedlce

The chart displays monthly precipitation patterns in Siedlce, 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 Siedlce, May typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec4361476811595116125102865570
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Siedlce

In Siedlce in May humidity is 69%. With an average temperature of 13°C (56°F), this humidity feels like a cool and damp embrace, which might make traveling somewhat uncomfortable as the air weighs down on you, adding to the chill and making your clothes cling.

May Average Humidity in Siedlce

This chart illustrates the average monthly humidity levels in Siedlce, 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 Siedlce is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%88%86%77%69%69%63%59%69%85%90%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Siedlce

In Siedlce 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 Siedlce.

Maximum UV Index Levels in Siedlce for May

The chart shows the monthly maximum UV Index (UVI) for Siedlce 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 Siedlce typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec225678876421
Data source: Siedlce 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 Siedlce Compares to Other Months

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

This table compares monthly weather conditions in Siedlce, 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)91%low
February Weather1°C (34°F)61 mm (2.4 inches)88%low
March Weather4°C (39°F)47 mm (1.8 inches)86%moderate
April Weather9°C (48°F)67 mm (2.7 inches)77%high
May Weather13°C (56°F)114 mm (4.5 inches)69%high
June Weather19°C (66°F)95 mm (3.7 inches)69%very high
July Weather19°C (67°F)116 mm (4.6 inches)63%very high
August Weather19°C (67°F)125 mm (4.9 inches)59%high
September Weather14°C (58°F)102 mm (4.0 inches)69%high
October Weather10°C (50°F)86 mm (3.4 inches)85%moderate
November Weather5°C (42°F)54 mm (2.1 inches)90%low
December Weather1°C (34°F)70 mm (2.8 inches)91%low

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