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May Weather in Dunkirk, United States

Last updated: June 24, 2025

In Dunkirk, United States, the average temperature in May is a comfortable 17°C (63°F). However, temperatures can vary widely, with a minimum as low as -1°C (30°F) and a peak of 33°C (92°F). Rainfall is moderate, with about 130 mm (5.1 in) expected over 15 days. Expect high humidity levels too, averaging around 81%, which adds a bit of stickiness to the warm days.

May Temperature in Dunkirk

In May in Dunkirk, the average temperature is 17°C (63°F). The maximum can reach 33°C (92°F) and the minimum can be as low as -1°C (30°F). Be sure to pack clothing suitable for both warm and cool conditions while exploring.

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 (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec293241506372757368574135
Data source: Temperature data for Dunkirk 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 Dunkirk

In Dunkirk in May, the total precipitation amount is 130 mm (5.1 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 130 mm (5.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec7292981061301271088873948670
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Dunkirk

In Dunkirk 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 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
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.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)72 mm (2.8 inches)88%moderate
February Weather0°C (32°F)92 mm (3.6 inches)87%moderate
March Weather5°C (41°F)98 mm (3.9 inches)87%high
April Weather10°C (51°F)106 mm (4.2 inches)87%very high
May Weather17°C (63°F)130 mm (5.1 inches)81%very high
June Weather22°C (72°F)127 mm (5.0 inches)82%very high
July Weather24°C (76°F)108 mm (4.3 inches)81%very high
August Weather23°C (73°F)88 mm (3.5 inches)78%very high
September Weather20°C (68°F)73 mm (2.9 inches)78%very high
October Weather14°C (57°F)94 mm (3.7 inches)82%high
November Weather5°C (42°F)86 mm (3.4 inches)89%moderate
December Weather2°C (35°F)70 mm (2.7 inches)86%low

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