Climate and monthly weather forecast
Copalis Beach, WA

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Weather in January

January, like December, is a frosty winter month in Copalis Beach, Washington, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 40.6°F (4.8°C). The advent of January observes an average high-temperature of a still chilly 46.9°F (8.3°C), nearly identical to December's 45.5°F (7.5°C). Weather in January »

Weather in February

February, the last month of the winter in Copalis Beach, is also a frosty month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 46.9°F (8.3°C). The transition into February is marked with an average high-temperature of a still frosty 46.9°F (8.3°C), showing an insignificant shift from January's chilly 46.9°F (8.3°C). Weather in February »

Weather in March

The first month of the spring, March, is also a frosty month in Copalis Beach, Washington, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 49.5°F (9.7°C). Copalis Beach marks the onset of March with an average high-temperature of a still chilly 49.5°F (9.7°C), subtly divergent from February's 46.9°F (8.3°C). Weather in March »

Weather in April

April in Copalis Beach, Washington, is a fresh spring month, with an average temperature fluctuating between 43.9°F (6.6°C) and 52.3°F (11.3°C). April's arrival registers an average high-temperature of a fresh 52.3°F (11.3°C), closely aligning with the temperature of the previous month. Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Copalis Beach, Washington, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 57.6°F (14.2°C). The beginning of May records an average high-temperature of a moderate 57.6°F (14.2°C), marking a negligible difference from April's 52.3°F (11.3°C). Weather in May »

Weather in June

June, the first month of the summer in Copalis Beach, is a comfortable month, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 50.7°F (10.4°C). In June, Copalis Beach notes an average high-temperature of an enjoyable 61.2°F (16.2°C), hardly different from the preceding month. Weather in June »

Weather in July

July, the same as June, is another refreshing summer month in Copalis Beach, Washington, with an average temperature varying between 64.8°F (18.2°C) and 53.6°F (12°C). The average high-temperature is a still comfortable 64.8°F (18.2°C) in July, hardly different from the 61.2°F (16.2°C) recorded in June. Weather in July »

Weather in August

The last month of the summer, August, is another refreshing month in Copalis Beach, Washington, with an average temperature varying between 65.8°F (18.8°C) and 54.5°F (12.5°C). The average temperatures reach their apex in August, averaging 65.8°F (18.8°C) at the high end and 54.5°F (12.5°C) at the low end. Weather in August »

Weather in September

September, the first month of the autumn in Copalis Beach, is also an enjoyable month, with an average temperature fluctuating between 63.7°F (17.6°C) and 52.7°F (11.5°C). The average high-temperature during September is a still refreshing 63.7°F (17.6°C), almost matching the conditions of the preceding month. Weather in September »

Weather in October

October, like September, is another mild autumn month in Copalis Beach, Washington, with an average temperature ranging between max 57.7°F (14.3°C) and min 48.7°F (9.3°C). October is characterized by a slight reduction in average high-temperature, easing from a comfortable 63.7°F (17.6°C) in September to a still refreshing 57.7°F (14.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Copalis Beach, Washington, with an average temperature varying between 50.7°F (10.4°C) and 44.1°F (6.7°C). November indicates a minor shift in the average high-temperature, from October's refreshing 57.7°F (14.3°C) to a cool 50.7°F (10.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Copalis Beach, Washington, with an average temperature varying between 39.7°F (4.3°C) and 45.5°F (7.5°C). With average temperatures fluctuating between a high of 45.5°F (7.5°C) and a low of 39.7°F (4.3°C), December stands out as the coldest month. Weather in December »
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Frequently asked questions

How much does it rain in Copalis Beach?

In Copalis Beach, during the entire year, the rain falls for 152.8 days and collects up to 19.41" (493mm) of precipitation.

When does it snow in Copalis Beach?

Months with snowfall are January through March and November.

How many days does it snow in Copalis Beach?

Throughout the year, there are 3.3 snowfall days, and 1.38" (35mm) of snow is accumulated.

What is the month with the least sunshine in Copalis Beach?

The month with the least sunshine in Copalis Beach, Washington, is January, with an average of 3.5h of sunshine.

What is the month with the lowest UV index in Copalis Beach?

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

What is the snowiest month in Copalis Beach?

The month with the most snowfall in Copalis Beach is February, when snow falls for 1.6 days and typically aggregates up to 1.02" (26mm) of snow.

When is Daylight Saving Time (DST) in Copalis Beach?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

What are the least humid months in Copalis Beach?

April through June, with an average relative humidity of 81%, are the least humid months in Copalis Beach.

When it does not snow in Copalis Beach?

April through October and December are months without snowfall in Copalis Beach, Washington.

What are the months with the highest UV index in Copalis Beach?

The months with the highest UV index in Copalis Beach, Washington, are May through September, with an average maximum UV index of 4.

When are the longest days in Copalis Beach?

June has the longest days of the year in Copalis Beach, with an average of 15h and 48min of daylight.

What is the driest month in Copalis Beach?

The month with the least rainfall is July, when the rain falls for 5.6 days and typically collects 0.24" (6mm) of precipitation.

What month has the most sunshine in Copalis Beach?

With an average of 10h of sunshine, July has the most sunshine of the year in Copalis Beach.

What are the warmest months in Copalis Beach?

Copalis Beach's warmest month, August, generally records average temperatures ranging from a high of 65.8°F (18.8°C) to a low of 54.5°F (12.5°C).

What time of the year is the coldest in Copalis Beach?

In Copalis Beach, the average lowest temperatures are observed in December, with a high of 45.5°F (7.5°C) and a low of 39.7°F (4.3°C).

What is the most humid month in Copalis Beach?

With an average relative humidity of 85%, December is the most humid month in Copalis Beach, Washington.

What is the wettest month in Copalis Beach?

December is the month with the most rainfall in Copalis Beach. Rain falls for 18.5 days and accumulates 3.35" (85mm) of precipitation.

What is the month with the shortest days in Copalis Beach?

The month with the shortest days in Copalis Beach is December, with an average of 8h and 36min of daylight.

Average temperature
Copalis Beach, WA

Average temperature - Copalis Beach, WA

The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.5°F).

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (39.7°F).

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Average pressure
Copalis Beach, WA

Average pressure - Copalis Beach, WA

The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

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Average wind speed
Copalis Beach, WA

Average wind speed - Copalis Beach, WA

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).

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Average humidity
Copalis Beach, WA

Average humidity - Copalis Beach, WA

The month with the highest relative humidity is December (85%).
The months with the lowest relative humidity are April, May and June (81%).

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Average rainfall
Copalis Beach, WA

Average rainfall - Copalis Beach, WA

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days
Copalis Beach, WA

Average rainfall days - Copalis Beach, WA

The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is July (5.6 days).

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Average snowfall
Copalis Beach, WA

Average snowfall - Copalis Beach, WA

The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").

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Average snowfall days
Copalis Beach, WA

Average snowfall days - Copalis Beach, WA

The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Copalis Beach, WA

Average daylight / Average sunshine - Copalis Beach, WA

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days
Copalis Beach, WA

Average sunshine days - Copalis Beach, WA

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is December (10.7 days).

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Average UV index
Copalis Beach, WA

Average UV index - Copalis Beach, WA

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Copalis Beach, WA

Average visibility - Copalis Beach, WA

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

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Copalis Beach, Washington, USA

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