Climate and monthly weather forecast
Oak Harbor, WA

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Weather in January

January, like December, is another chilly winter month in Oak Harbor, Washington, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 45°F (7.2°C). Shifting into January, Oak Harbor records an average high-temperature of a still frosty 45°F (7.2°C), presenting minor fluctuations compared to the previous month. Weather in January »

Weather in February

February, the last month of the winter in Oak Harbor, is another chilly month, with an average temperature ranging between max 44.8°F (7.1°C) and min 37.9°F (3.3°C). February's advent presents an average high-temperature of a still chilly 44.8°F (7.1°C), indicating a slight variation from the conditions of the previous month. Weather in February »

Weather in March

March, the first month of the spring in Oak Harbor, is still a chilly month, with temperature in the range of an average high of 48.6°F (9.2°C) and an average low of 40.6°F (4.8°C). The arrival of March brings an average high-temperature of a still chilly 48.6°F (9.2°C), subtly diverging from February's 44.8°F (7.1°C). Weather in March »

Weather in April

April in Oak Harbor, Washington, is a fresh spring month, with an average temperature ranging between min 43.7°F (6.5°C) and max 52.3°F (11.3°C). On the advent of April, Oak Harbor's average high-temperature exhibits a minor adjustment to a cool 52.3°F (11.3°C) from March's 48.6°F (9.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a mild month in Oak Harbor, Washington, with an average temperature ranging between min 48°F (8.9°C) and max 59°F (15°C). Entering May, Oak Harbor notices a subtle temperature elevation, with the average high-temperature advancing from April's cool 52.3°F (11.3°C) to a mild 59°F (15°C). Weather in May »

Weather in June

The first month of the summer, June, is a refreshing month in Oak Harbor, Washington, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 62.2°F (16.8°C). With the advent of June, Oak Harbor's high-temperatures adjust to a still refreshing 62.2°F (16.8°C), closely aligning with the preceding month. Weather in June »

Weather in July

July, like June, in Oak Harbor, Washington, is another enjoyable summer month, with an average temperature ranging between min 54.5°F (12.5°C) and max 66.2°F (19°C). July temperatures tend to peak at an average high of 66.2°F (19°C) and dip to a low of 54.5°F (12.5°C). Weather in July »

Weather in August

The last month of the summer, August, is another comfortable month in Oak Harbor, Washington, with an average temperature varying between 66°F (18.9°C) and 55.9°F (13.3°C). Oak Harbor, Washington, starts August with an average high-temperature of a still enjoyable 66°F (18.9°C), hinting at a minimal fluctuation from July. Weather in August »

Weather in September

September, the first month of the autumn in Oak Harbor, is still a comfortable month, with temperature in the range of an average high of 62.8°F (17.1°C) and an average low of 53.4°F (11.9°C). As August transitions into September, the average high-temperature rests at a still comfortable 62.8°F (17.1°C), maintaining a close resemblance to the previous month. Weather in September »

Weather in October

October, like September, is another mild autumn month in Oak Harbor, Washington, with an average temperature fluctuating between 48.2°F (9°C) and 55.6°F (13.1°C). A subtle change in temperatures is noted as September gives way to October, with average highs reducing from a refreshing 62.8°F (17.1°C) to a moderate 55.6°F (13.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Oak Harbor, is also a frosty month, with an average temperature fluctuating between 48.4°F (9.1°C) and 43°F (6.1°C). A minor decrease in the average high-temperature is observed during November, shifting from a refreshing 55.6°F (13.1°C) in October to a chilly 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in Oak Harbor, is also a frosty month, with an average temperature fluctuating between 43.7°F (6.5°C) and 38.3°F (3.5°C). December tends to be the coldest month, with temperatures averaging a daily high of 43.7°F (6.5°C) and a low of 38.3°F (3.5°C). Weather in December »
Updated: Feb 14, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What is the most humid month in Oak Harbor?

January through March, with an average relative humidity of 81%, are most humid months in Oak Harbor.

How much does it rain in Oak Harbor?

In Oak Harbor, during the entire year, the rain falls for 183.8 days and collects up to 24.45" (621mm) of precipitation.

When does it snow in Oak Harbor?

January through April, November and December are months with snowfall.

How much does it snow in Oak Harbor?

Throughout the year, there are 9.6 snowfall days, and 5.63" (143mm) of snow is accumulated.

When is the ocean coldest in Oak Harbor?

The months with the coldest seawater are January, February and April, with an average ocean temperature of 45.1°F (7.3°C).

What are the months with the lowest UV index in Oak Harbor?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Oak Harbor, Washington.

What is the snowiest month in Oak Harbor?

February is the month with the most snowfall in Oak Harbor, Washington. Snow falls for 3.3 days and accumulates 3.27" (83mm) of snow.

When is Daylight Saving Time (DST) in Oak Harbor?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Oak Harbor, Washington, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Oak Harbor?

May through October are months without snowfall.

When are the longest days in Oak Harbor?

The month with the longest days is June, with an average of 16h and 0min of daylight.

What is the hottest time of year in Oak Harbor?

July is the month when Oak Harbor, Washington, experiences its warmest temperatures, averaging a high of 66.2°F (19°C) and a low of 54.5°F (12.5°C).

What is the least humid month in Oak Harbor?

July is the least humid month in Oak Harbor, Washington, with an average relative humidity of 76%.

What is the driest month in Oak Harbor?

The month with the least rainfall is July, when the rain falls for 7.8 days and typically collects 0.47" (12mm) of precipitation.

When is the highest UV index in Oak Harbor?

The month with the highest UV index in Oak Harbor is July, with an average maximum UV index of 5.

When is the ocean warmest in Oak Harbor?

August and September, with an average ocean temperature of 53.1°F (11.7°C), are months with the warmest seawater.

What month has the most sunshine in Oak Harbor?

August has the most sunshine of the year in Oak Harbor, Washington, with an average of 11h of sunshine.

What is the wettest month in Oak Harbor?

November is the month with the most rainfall in Oak Harbor. Rain falls for 20.5 days and accumulates 3.46" (88mm) of precipitation.

What month is the coldest in Oak Harbor?

December proves to be the coldest month, recording an average maximum temperature of 43.7°F (6.5°C) and a minimum temperature of 38.3°F (3.5°C).

What is the month with the shortest days in Oak Harbor?

December has the shortest days of the year in Oak Harbor, Washington, with an average of 8h and 24min of daylight.

What is the month with the least sunshine in Oak Harbor?

With an average of 4.6h of sunshine, December has the least sunshine of the year.

Average temperature
Oak Harbor, WA

Average temperature - Oak Harbor, WA

The warmest month (with the highest average high temperature) is July (66.2°F).
The month with the lowest average high temperature is December (43.7°F).

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (37.9°F).

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Average pressure
Oak Harbor, WA

Average pressure - Oak Harbor, WA

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed
Oak Harbor, WA

Average wind speed - Oak Harbor, WA

The windiest month (with the highest average wind speed) is November (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity
Oak Harbor, WA

Average humidity - Oak Harbor, WA

The months with the highest relative humidity are January, February and March (81%).
The month with the lowest relative humidity is July (76%).

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Average rainfall
Oak Harbor, WA

Average rainfall - Oak Harbor, WA

The wettest month (with the highest rainfall) is November (3.46").
The driest month (with the least rainfall) is July (0.47").

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Average rainfall days
Oak Harbor, WA

Average rainfall days - Oak Harbor, WA

The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is August (7.5 days).

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Average snowfall
Oak Harbor, WA

Average snowfall - Oak Harbor, WA

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Oak Harbor, WA

Average snowfall days - Oak Harbor, WA

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature
Oak Harbor, WA

Average sea temperature - Oak Harbor, WA

The best month for swimming (with the highest average sea temperature) is August (53°F).
The coldest month (with the lowest average sea temperature) is February (45°F).

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Average daylight / Average sunshine
Oak Harbor, WA

Average daylight / Average sunshine - Oak Harbor, WA

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days
Oak Harbor, WA

Average sunshine days - Oak Harbor, WA

The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.5 days).

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Average UV index
Oak Harbor, WA

Average UV index - Oak Harbor, WA

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Oak Harbor, WA

Average visibility - Oak Harbor, WA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Oak Harbor, Washington, USA

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