Coos Bay
Oregon, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Coos Bay, OR

A unique sandy and rocky shore near a forest of pine trees in the Shore Acres State Park in Coos Bay, Oregon, light waves in the vast sea
A unique sandy and rocky shore near a forest of pine trees in the Shore Acres State Park in Coos Bay, Oregon, light waves in the vast sea
January is a fresh winter month in Coos Bay, Oregon, with average temperature varying between 42.4°F (5.8°C) and 50.5°F (10.3°C). In January, the average high-temperature is essentially the same as in December - a cool 50.5°F (10.3°C). Weather in January »

February, the last month of the winter, in Coos Bay, is another cool month, with average temperature fluctuating between 41.7°F (5.4°C) and 50.5°F (10.3°C). In February, the average high-temperature remains the same as in January - a still fresh 50.5°F (10.3°C). Weather in February »

The first month of the spring, March, is also a fresh month in Coos Bay, Oregon, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 51.8°F (11°C). In Coos Bay, Oregon, the average high-temperature is almost the same as in February - a still fresh 51.8°F (11°C). Weather in March »

April, like March, in Coos Bay, Oregon, is another fresh spring month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 43.3°F (6.3°C). In April, the average high-temperature is relatively the same as in March - a still cool 54.5°F (12.5°C). Weather in April »

May, the last month of the spring, in Coos Bay, is a mild month, with average temperature fluctuating between 46.2°F (7.9°C) and 58.6°F (14.8°C). In May, the average high-temperature is relatively the same as in April - a moderate 58.6°F (14.8°C). Weather in May »

The first month of the summer, June, is a comfortable month in Coos Bay, Oregon, with average temperature fluctuating between 49.5°F (9.7°C) and 62.2°F (16.8°C). In June, the average high-temperature is essentially the same as in May - a comfortable 62.2°F (16.8°C). Weather in June »

July, the same as June, is another enjoyable summer month in Coos Bay, Oregon, with average temperature ranging between min 52.2°F (11.2°C) and max 65.8°F (18.8°C). In Coos Bay, the average high-temperature is almost the same as in June - a still enjoyable 65.8°F (18.8°C). Weather in July »

August, the last month of the summer, in Coos Bay, is another comfortable month, with average temperature fluctuating between 52.3°F (11.3°C) and 66.9°F (19.4°C). With an average high-temperature of 66.9°F (19.4°C) and an average low-temperature of 52.3°F (11.3°C), August is the warmest month. Weather in August »

September, the first month of the autumn, in Coos Bay, is also an enjoyable month, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 65.8°F (18.8°C). In September, the average high-temperature is essentially the same as in August - a still comfortable 65.8°F (18.8°C). Weather in September »

October, like September, in Coos Bay, Oregon, is another comfortable autumn month, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 61°F (16.1°C). In Coos Bay, Oregon, the average high-temperature in October is relatively the same as in September - a still enjoyable 61°F (16.1°C). Weather in October »

November, the last month of the autumn, in Coos Bay, is another cool month, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 45.5°F (7.5°C). In November, the average high-temperature marginally drops, from a comfortable 61°F (16.1°C) in October, to a fresh 54.1°F (12.3°C). Weather in November »

December, the first month of the winter, in Coos Bay, is still a chilly month, with average temperature varying between 49.1°F (9.5°C) and 41.7°F (5.4°C). With an average high-temperature of 49.1°F (9.5°C) and an average low-temperature of 41.7°F (5.4°C), December is the coldest month. Weather in December »

How many days does it rain in Coos Bay?

Throughout the year, in Coos Bay, there are 153 rainfall days, and 33.5" (851mm) of precipitation is accumulated.

When does it snow in Coos Bay?

January, February and November are months with snowfall.

How much does it snow in Coos Bay?

In Coos Bay, during the entire year, snow falls for 0.7 days, and aggregates up to 0.31" (8mm) of snow.

What is the month with the least sunshine in Coos Bay?

January and February, with an average of 4.4h of sunshine, are months with the least sunshine in Coos Bay, Oregon.

What is the most humid month in Coos Bay?

Months with the highest humidity in Coos Bay, Oregon, are February and August, with an average relative humidity of 84%.

What is the snowiest month in Coos Bay?

The month with the most snowfall in Coos Bay is February when snow falls for 0.3 days and typically aggregates up to 0.2" (5mm) of snow.

What is the month with the lowest UV index in Coos Bay?

Months with the lowest UV index in Coos Bay, Oregon, are February and December, with an average maximum UV index of 2.

When it does not snow in Coos Bay?

March through October and December are months without snowfall.

What is the least humid month in Coos Bay?

Months with the lowest humidity in Coos Bay, Oregon, are April and October, with an average relative humidity of 81%.

When are the longest days in Coos Bay?

June has the longest days of the year, with an average of 15.4h of daylight.

What is the driest month in Coos Bay?

The month with the least rainfall is July when the rain falls for 3.6 days and typically collects 0.16" (4mm) of precipitation.

What month has the most sunshine in Coos Bay?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

What is the month with the highest UV index in Coos Bay?

With an average maximum UV index of 5, July is the month with the highest UV index.

What is the warmest month in Coos Bay?

With an average high-temperature of 66.9°F (19.4°C) and an average low-temperature of 52.3°F (11.3°C), August is the warmest month.

What is the coldest month in Coos Bay?

December is the coldest month in Coos Bay, with an average high-temperature of 49.1°F (9.5°C) and an average low-temperature of 41.7°F (5.4°C).

What is the wettest month in Coos Bay?

The month with the most rainfall is December when the rain falls for 18.6 days and typically aggregates up to 5.87" (149mm) of precipitation.

What is the month with the shortest days in Coos Bay?

The month with the shortest days is December, with an average of 9h of daylight.
Average temperature - Coos Bay, OR
Average humidity - Coos Bay, OR
Average rainfall - Coos Bay, OR

The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the lowest rainfall) is July (0.16").

Average rainfall days - Coos Bay, OR

The month with the highest number of rainy days is March (19.2 days).
The month with the lowest number of rainy days is August (3.5 days).

Average snowfall - Coos Bay, OR

The month with the highest snowfall is February (0.2").
Months with the lowest snowfall are March, April, May, June, July, August, September, October and December (0").

Average snowfall days - Coos Bay, OR

The month with the highest number of snowfall days is February (0.3 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Coos Bay, OR