May Weather in Oak Harbor, United States

Last updated: June 24, 2025

In May, the average temperature in Oak Harbor, United States hovers around 12°C (54°F). This pleasant climate can see fluctuations, with minimums dipping to 6°C (43°F) and maximums reaching up to 17°C (63°F). Expect 54 mm (2.1 in) of precipitation spread over approximately 10 days, contributing to an average humidity of 81%. Be prepared for a mix of weather as you explore!

May Temperature in Oak Harbor

In May in Oak Harbor, the average temperature is 12°C (54°F). The maximum can reach 17°C (63°F), and the minimum can be as low as 6°C (43°F). This mild climate makes it a comfortable time to explore and enjoy outdoor activities in Oak Harbor.

May Weather in Oak Harbor: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Oak Harbor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oak Harbor, May typically has an average temperature of 12°C (54°F), with highs reaching up to 17°C (63°F) and lows dropping to around 6°C (43°F).

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

May Precipitation in Oak Harbor

In Oak Harbor in May, the total precipitation amount is 54 mm (2.1 in) over the course of 10 days.

May Precipitation Trends in Oak Harbor

The chart displays monthly precipitation patterns in Oak Harbor, 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 Oak Harbor, May typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Oak Harbor

In Oak Harbor in May humidity is 81%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel sluggish and uncomfortable as you battle the stickiness while trying to enjoy your surroundings.

May Average Humidity in Oak Harbor

This chart illustrates the average monthly humidity levels in Oak Harbor, 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 Oak Harbor 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 Oak Harbor

In Oak Harbor in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Oak Harbor.

Maximum UV Index Levels in Oak Harbor for May

The chart shows the monthly maximum UV Index (UVI) for Oak Harbor 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 Oak Harbor typically reaches 8, which falls under the very high exposure category.

Data source: Oak Harbor 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 Oak Harbor Compares to Other Months

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

This table compares monthly weather conditions in Oak Harbor, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	150 mm (5.9 inches)	86%	low
February Weather	6°C (42°F)	154 mm (6.1 inches)	85%	moderate
March Weather	7°C (45°F)	118 mm (4.6 inches)	86%	moderate
April Weather	9°C (49°F)	86 mm (3.4 inches)	86%	high
May Weather	12°C (54°F)	54 mm (2.1 inches)	81%	very high
June Weather	14°C (57°F)	53 mm (2.1 inches)	83%	very high
July Weather	15°C (60°F)	28 mm (1.1 inches)	84%	very high
August Weather	16°C (61°F)	26 mm (1.0 inches)	77%	very high
September Weather	14°C (58°F)	87 mm (3.4 inches)	76%	high
October Weather	11°C (53°F)	133 mm (5.2 inches)	88%	moderate
November Weather	9°C (48°F)	189 mm (7.4 inches)	87%	low
December Weather	7°C (44°F)	177 mm (7.0 inches)	87%	low