May Weather in Warsaw, United States

Last updated: June 24, 2025

In May, the average temperature in Warsaw, United States hovers around 20°C (68°F), making it a pleasant time to explore. However, be prepared for a range, as temperatures can dip to a cool 5°C (41°F) or soar to a warm 34°C (94°F). With 111 mm (4.4 in) of precipitation spread over approximately 12 days, a light jacket and umbrella may come in handy. The humidity levels are notably high, averaging around 80%, ensuring that the air feels as lively as the local atmosphere!

May Temperature in Warsaw

In May in Warsaw, the average temperature is 20°C (68°F). Maximum temperatures can reach 34°C (94°F) and minimums can drop as low as 5°C (41°F). This varied climate makes it a great time for travelers to experience both warm days and cooler evenings, perfect for outdoor activities and exploration.

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 20°C (68°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for Warsaw generated using information from the Copernicus Climate Change Service.

May Precipitation in Warsaw

In Warsaw, in May, the precipitation amount is 111 mm (4.4 in) over a span of 12 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 111 mm (4.4 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Warsaw

In Warsaw in May, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

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 80%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	65 mm (2.6 inches)	84%	moderate
February Weather	6°C (44°F)	95 mm (3.8 inches)	83%	high
March Weather	9°C (49°F)	83 mm (3.3 inches)	82%	high
April Weather	15°C (59°F)	97 mm (3.8 inches)	81%	very high
May Weather	20°C (68°F)	111 mm (4.4 inches)	80%	very high
June Weather	24°C (76°F)	116 mm (4.6 inches)	82%	very high
July Weather	27°C (81°F)	129 mm (5.1 inches)	81%	very high
August Weather	26°C (79°F)	168 mm (6.6 inches)	81%	very high
September Weather	23°C (74°F)	108 mm (4.3 inches)	78%	very high
October Weather	18°C (64°F)	123 mm (4.8 inches)	80%	high
November Weather	10°C (50°F)	79 mm (3.1 inches)	84%	moderate
December Weather	7°C (44°F)	92 mm (3.6 inches)	84%	moderate