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May Weather in Warsaw, United States

Last updated: June 24, 2025

In May, the average temperature in Warsaw, United States hovers around 17°C (63°F). This period witnesses a minimum temperature dropping to -1°C (30°F) and a soaring maximum reaching 32°C (89°F). Expect 126 mm (4.9 in) of precipitation spread over 15 days, accompanied by a humidity level averaging 81%. Prepare for a mix of weather as you enjoy this vibrant locale!

May Temperature in Warsaw

In May in Warsaw, the average temperature is 17°C (63°F). Maximums can reach 32°C (89°F) and minimums can be as low as -1°C (30°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Warsaw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Warsaw, May typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (89°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec313442526371757368574236
Data source: Temperature data for Warsaw 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 Warsaw

In Warsaw in May, the precipitation amount is 126 mm (4.9 in) over the course of 15 days.

May Precipitation Trends in Warsaw

The chart displays monthly precipitation patterns in Warsaw, 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 Warsaw, May typically receives around 126 mm (4.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec87108108129126136116871031059798
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Warsaw

In Warsaw in May humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

May Average Humidity in Warsaw

This chart illustrates the average monthly humidity levels in Warsaw, 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 Warsaw is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Warsaw

In Warsaw in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Warsaw.

Maximum UV Index Levels in Warsaw for May

The chart shows the monthly maximum UV Index (UVI) for Warsaw 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 Warsaw typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Warsaw 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 Warsaw Compares to Other Months

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

This table compares monthly weather conditions in Warsaw, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)87 mm (3.4 inches)88%moderate
February Weather1°C (35°F)108 mm (4.2 inches)88%moderate
March Weather6°C (42°F)108 mm (4.3 inches)87%high
April Weather11°C (52°F)129 mm (5.1 inches)87%very high
May Weather17°C (63°F)126 mm (4.9 inches)81%very high
June Weather22°C (71°F)136 mm (5.4 inches)83%very high
July Weather24°C (76°F)116 mm (4.6 inches)82%very high
August Weather23°C (73°F)87 mm (3.4 inches)76%very high
September Weather20°C (69°F)103 mm (4.0 inches)77%very high
October Weather14°C (58°F)105 mm (4.1 inches)82%high
November Weather6°C (42°F)97 mm (3.8 inches)89%moderate
December Weather2°C (37°F)98 mm (3.9 inches)86%low

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