May Weather in Dunkirk, United States

Last updated: June 24, 2025

In Dunkirk, United States, the average temperature in May hovers around 17°C (64°F), with extremes ranging from a chilly -2°C (29°F) to a sweltering 35°C (95°F). Visitors should be prepared for 158 mm (6.2 in) of precipitation over 15 days, and expect a relatively high average humidity of 81%. Plan accordingly to enjoy your stay!

May Temperature in Dunkirk

In May in Dunkirk, the average temperature is 17°C (64°F). Maximums can reach 35°C (95°F), while minimums can dip to as low as -2°C (29°F). Be prepared for a wide range of temperatures during your travels!

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

The chart illustrates May temperature patterns in Dunkirk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dunkirk, May typically has an average temperature of 17°C (64°F), with highs reaching up to 35°C (95°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Dunkirk

In Dunkirk in May, the precipitation amount is 158 mm (6.2 in) over the course of 15 days.

May Precipitation Trends in Dunkirk

The chart displays monthly precipitation patterns in Dunkirk, 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 Dunkirk, May typically receives around 158 mm (6.2 inches) of precipitation spread over approximately 15 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 Dunkirk

In Dunkirk in May, humidity is 81%. With an average temperature of 17°C (64°F), this humidity feels like walking through a warm mist, enveloping you in a sticky embrace that can quickly lead to discomfort during long sightseeing excursions.

May Average Humidity in Dunkirk

This chart illustrates the average monthly humidity levels in Dunkirk, 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 Dunkirk is approximately 81%, 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 Dunkirk

In Dunkirk in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Dunkirk.

Maximum UV Index Levels in Dunkirk for May

The chart shows the monthly maximum UV Index (UVI) for Dunkirk 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 Dunkirk typically reaches 9, which falls under the very high exposure category.

Data source: Dunkirk 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 Dunkirk Compares to Other Months

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

This table compares monthly weather conditions in Dunkirk, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	75 mm (3.0 inches)	85%	moderate
February Weather	-1°C (31°F)	79 mm (3.1 inches)	85%	moderate
March Weather	5°C (42°F)	102 mm (4.0 inches)	86%	high
April Weather	10°C (51°F)	96 mm (3.8 inches)	87%	very high
May Weather	17°C (64°F)	158 mm (6.2 inches)	81%	very high
June Weather	23°C (73°F)	103 mm (4.1 inches)	82%	very high
July Weather	25°C (77°F)	101 mm (4.0 inches)	81%	very high
August Weather	23°C (74°F)	105 mm (4.1 inches)	79%	very high
September Weather	21°C (69°F)	63 mm (2.5 inches)	78%	very high
October Weather	14°C (57°F)	107 mm (4.2 inches)	81%	high
November Weather	5°C (41°F)	76 mm (3.0 inches)	89%	moderate
December Weather	2°C (35°F)	64 mm (2.5 inches)	86%	low