2025 Compare Climate & Weather:
Morro Bay, CA vs Half Moon Bay, CA

Highlights

On average, there are 259 sunny days per year in Half Moon Bay. Morro Bay averages 284 sunny days per year. The US average is 205 sunny days.

Half Moon Bay, California gets 23.7 inches of rain, on average, per year. Morro Bay, California gets 19 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Half Moon Bay averages 0 inches of snow per year. Morro Bay averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Half Moon Bay, California
Summer High: the July high is around 72.5 degrees
Winter Low: the January low is 42
Rain: averages 23.7 inches of rain a year
Snow: averages 0 inches of snow a year

Morro Bay, California
Summer High: the July high is around 69.8 degrees
Winter Low: the January low is 44.3
Rain: averages 19 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Half Moon Bay is 8.3 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Morro Bay is 8.8 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Morro Bay, CA

54°F

Today's Weather - Half Moon Bay, CA

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Morro Bay / Half Moon Bay

September is the hottest month for Morro Bay with an average high temperature of 71.5°, which ranks it as one of the coolest places in California. In Morro Bay, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Morro Bay are September, October and August.

August is the hottest month for Half Moon Bay with an average high temperature of 72.9°, which ranks it as one of the coolest places in California. In Half Moon Bay, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Half Moon Bay are August, September and July.

December has the coldest nighttime temperatures for Morro Bay with an average of 44.0°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Half Moon Bay with an average of 42.0°. This is warmer than most places in California.

In Morro Bay, there are 3.4 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Half Moon Bay, there are 6.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Morro Bay, there are 1.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Half Moon Bay, there are 3.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Morro Bay, 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 Half Moon Bay, 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 Morro Bay with 4.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 19.0 inches in Morro Bay means that it is about average compared to other places in California.


January is the wettest month in Half Moon Bay with 4.6 inches of rain, and the driest month is July with 0.1 inches. The wettest season is Spring with 57% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 23.7 inches in Half Moon Bay means that it is wetter than most places in California.

February is the rainiest month in Morro Bay with 9.1 days of rain, and July is the driest month with only 0.4 rainy days. There are 50.2 rainy days annually in Morro Bay, which is about average compared to other places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 3% chance of a rainy day.

January is the rainiest month in Half Moon Bay with 12.1 days of rain, and June is the driest month with only 2.4 rainy days. There are 83.5 rainy days annually in Half Moon Bay, which is one of the rainiest places in California. The rainiest season is Spring when it rains 42% of the time and the driest is Autumn with only a 9% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Morro Bay.

Any measurable snowfall is a rare occurance in Half Moon Bay.