2025 Compare Climate & Weather:
Santa Monica, CA vs Mendocino, CA

Highlights

On average, there are 189 sunny days per year in Mendocino. Santa Monica averages 281 sunny days per year. The US average is 205 sunny days.

Mendocino, California gets 41 inches of rain, on average, per year. Santa Monica, California gets 13.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Mendocino averages 0 inches of snow per year. Santa Monica averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Mendocino, California
Summer High: the July high is around 77.8 degrees
Winter Low: the January low is 38.7
Rain: averages 41 inches of rain a year
Snow: averages 0 inches of snow a year

Santa Monica, California
Summer High: the July high is around 73.5 degrees
Winter Low: the January low is 49.3
Rain: averages 13.7 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Mendocino is 7.7 (10=best), which means it is less comfortable than most places in California.

The annual BestPlaces Comfort Index for Santa Monica is 9.2 (10=best), which means it is one of the most pleasant places in California.

Today's Weather - Santa Monica, CA

60°F

Today's Weather - Mendocino, CA

49°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Santa Monica / Mendocino

August is the hottest month for Santa Monica with an average high temperature of 74.3°, which ranks it as one of the coolest places in California. In Santa Monica, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Santa Monica are August, September and July.

July is the hottest month for Mendocino with an average high temperature of 77.8°, which ranks it as cooler than most places in California. In Mendocino, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mendocino are July, August and September.

December has the coldest nighttime temperatures for Santa Monica with an average of 48.6°. This is one of the warmest places in California.

December has the coldest nighttime temperatures for Mendocino with an average of 38.2°. This is about average compared to other places in California.

In Santa Monica, there are 1.8 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Mendocino, there are 29.6 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Santa Monica, there are 0.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Mendocino, there are 18.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

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

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

February is the wettest month in Santa Monica with 3.4 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 61% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 13.7 inches in Santa Monica means that it is drier than most places in California.


December is the wettest month in Mendocino with 7.9 inches of rain, and the driest month is July with 0.1 inches. The wettest season is Spring with 54% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 41.0 inches in Mendocino means that it is wetter than most places in California.

February is the rainiest month in Santa Monica with 5.9 days of rain, and August is the driest month with only 0.3 rainy days. There are 30.3 rainy days annually in Santa Monica, which is one of the least rainy places in California. The rainiest season is Spring when it rains 53% of the time and the driest is Autumn with only a 4% chance of a rainy day.

December is the rainiest month in Mendocino with 14.9 days of rain, and July is the driest month with only 1.3 rainy days. There are 96.7 rainy days annually in Mendocino, which is one of the rainiest places in California. The rainiest season is Spring when it rains 44% of the time and the driest is Autumn with only a 6% chance of a rainy day.

There is rarely any recorded snowfall in Santa Monica, ranking it as one of the least snowy places in California.

There is rarely any recorded snowfall in Mendocino, ranking it as one of the least snowy places in California.

Any measurable snowfall is a rare occurance in Santa Monica.

Any measurable snowfall is a rare occurance in Mendocino.