2025 Compare Climate & Weather:
Coos Bay, OR vs Eureka, CA

Highlights

On average, there are 179 sunny days per year in Eureka. Coos Bay averages 186 sunny days per year. The US average is 205 sunny days.

Eureka, California gets 45.7 inches of rain, on average, per year. Coos Bay, Oregon gets 64.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Eureka averages 0.5 inches of snow per year. Coos Bay averages 0.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Eureka, California
Summer High: the July high is around 65 degrees
Winter Low: the January low is 41.1
Rain: averages 45.7 inches of rain a year
Snow: averages 0.5 inches of snow a year

Coos Bay, Oregon
Summer High: the July high is around 66.9 degrees
Winter Low: the January low is 37.6
Rain: averages 64.4 inches of rain a year
Snow: averages 0.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Eureka is 7.6 (10=best), which means it is less comfortable than most places in California.

The annual BestPlaces Comfort Index for Coos Bay is 7.3 (10=best), which means it is more comfortable than most places in Oregon.

Today's Weather - Coos Bay, OR

44°F

Today's Weather - Eureka, CA

46°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Coos Bay / Eureka

August is the hottest month for Coos Bay with an average high temperature of 68.2°, which ranks it as one of the coolest places in Oregon. In Coos Bay, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Coos Bay are August, September and July.

August is the hottest month for Eureka with an average high temperature of 66.1°, which ranks it as one of the coolest places in California. In Eureka, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Eureka are August, September and July.

December has the coldest nighttime temperatures for Coos Bay with an average of 37.3°. This is one of the warmest places in Oregon.

December has the coldest nighttime temperatures for Eureka with an average of 40.5°. This is warmer than most places in California.

In Coos Bay, there are 0.3 days annually when the high temperature is over 90°, which is one of the coolest places in Oregon.

In Eureka, there are 0.2 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Coos Bay, there are 25.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Eureka, there are 9.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Coos Bay, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.

In Eureka, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

December is the wettest month in Coos Bay with 11.4 inches of rain, and the driest month is July with 0.5 inches. The wettest season is Spring with 45% of yearly precipitation and 5% occurs in Autumn, which is the driest season. The annual rainfall of 64.4 inches in Coos Bay means that it is wetter than most places in Oregon.


December is the wettest month in Eureka with 8.8 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 50% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 45.7 inches in Eureka means that it is one of the wettest places in California.

November is the rainiest month in Coos Bay with 19.0 days of rain, and August is the driest month with only 3.7 rainy days. There are 153.3 rainy days annually in Coos Bay, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 11% chance of a rainy day.

December is the rainiest month in Eureka with 17.0 days of rain, and July is the driest month with only 2.4 rainy days. There are 123.9 rainy days annually in Eureka, which is one of the rainiest places in California. The rainiest season is Spring when it rains 39% of the time and the driest is Autumn with only a 8% chance of a rainy day.

An annual snowfall of 0.2 inches in Coos Bay means that it is one of the least snowy places in Oregon.

An annual snowfall of 0.5 inches in Eureka means that it is snowier than most places in California.

February is the snowiest month in Coos Bay with 0.2 inches of snow, and no months of the year have significant snowfall.

February is the snowiest month in Eureka with 0.3 inches of snow, and no months of the year have significant snowfall.