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April Weather in Oak Harbor, United States

Last updated: June 24, 2025

In April, the average temperature in Oak Harbor, United States hovers around 9°C (49°F). Expect a minimum of 3°C (38°F) and a comfortable maximum of 17°C (63°F). Be prepared for some rain, as precipitation averages 86 mm (3.4 in) across 16 days. With an average humidity of 86%, the air can feel quite damp, so dress accordingly!

April Temperature in Oak Harbor

In April in Oak Harbor, the average temperature is 9°C (49°F). The maximum can reach 17°C (63°F), while the minimum can drop to as low as 3°C (38°F). Dress in layers to enjoy your travels comfortably, as temperatures can vary throughout the day.

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

The chart illustrates April 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, April typically has an average temperature of 9°C (49°F), with highs reaching up to 17°C (63°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec444245495357596158524844
Data source: Temperature data for Oak Harbor 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.

April Precipitation in Oak Harbor

In Oak Harbor in April, the precipitation amount is 86 mm (3.4 in) over a period of 16 days.

April Precipitation Trends in Oak Harbor

The chart displays monthly precipitation patterns in Oak Harbor, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Oak Harbor, April typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec150154118865453282687133189177
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Oak Harbor

In Oak Harbor in April, humidity is 86%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill in the air, making travel uncomfortable as the moisture clings to your skin and thickens the atmosphere, creating a sense of heaviness that can tire you quickly.

April Average Humidity in Oak Harbor

This chart illustrates the average monthly humidity levels in Oak Harbor, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Oak Harbor is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Oak Harbor

In Oak Harbor in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Oak Harbor, you can refer to this Hourly UV Index in Oak Harbor.

Maximum UV Index Levels in Oak Harbor for April

The chart shows the monthly maximum UV Index (UVI) for Oak Harbor in April, 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 April, the maximum UV index in Oak Harbor typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Oak Harbor April 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 April 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 April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)150 mm (5.9 inches)86%low
February Weather6°C (42°F)154 mm (6.1 inches)85%moderate
March Weather7°C (45°F)118 mm (4.6 inches)86%moderate
April Weather9°C (49°F)86 mm (3.4 inches)86%high
May Weather12°C (54°F)54 mm (2.1 inches)81%very high
June Weather14°C (57°F)53 mm (2.1 inches)83%very high
July Weather15°C (60°F)28 mm (1.1 inches)84%very high
August Weather16°C (61°F)26 mm (1.0 inches)77%very high
September Weather14°C (58°F)87 mm (3.4 inches)76%high
October Weather11°C (53°F)133 mm (5.2 inches)88%moderate
November Weather9°C (48°F)189 mm (7.4 inches)87%low
December Weather7°C (44°F)177 mm (7.0 inches)87%low

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