2025 Compare Climate & Weather:
Berkeley, CA vs Hayward, CA

Highlights

On average, there are 257 sunny days per year in Hayward. Berkeley averages 256 sunny days per year. The US average is 205 sunny days.

Hayward, California gets 18 inches of rain, on average, per year. Berkeley, California gets 25.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Hayward averages 0 inches of snow per year. Berkeley averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Hayward, California
Summer High: the July high is around 76.2 degrees
Winter Low: the January low is 42.1
Rain: averages 18 inches of rain a year
Snow: averages 0 inches of snow a year

Berkeley, California
Summer High: the July high is around 71.6 degrees
Winter Low: the January low is 43.6
Rain: averages 25.5 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Hayward is 8.7 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Berkeley is 8.6 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Berkeley, CA

56°F

Today's Weather - Hayward, CA

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Berkeley / Hayward

September is the hottest month for Berkeley with an average high temperature of 73.7°, which ranks it as one of the coolest places in California. In Berkeley, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Berkeley are September, August and October.

August is the hottest month for Hayward with an average high temperature of 77.5°, which ranks it as cooler than most places in California. In Hayward, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hayward are August, September and July.

January has the coldest nighttime temperatures for Berkeley with an average of 43.6°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Hayward with an average of 42.1°. This is warmer than most places in California.

In Berkeley, there are 4.0 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Hayward, there are 9.6 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Berkeley, there are 0.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Hayward, there are 2.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Berkeley, 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 Hayward, 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 Berkeley with 4.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 56% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 25.5 inches in Berkeley means that it is wetter than most places in California.


February is the wettest month in Hayward with 3.4 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 18.0 inches in Hayward means that it is about average compared to other places in California.

January is the rainiest month in Berkeley with 11.2 days of rain, and July is the driest month with only 0.2 rainy days. There are 66.9 rainy days annually in Berkeley, which is rainier than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 3% chance of a rainy day.

December is the rainiest month in Hayward with 11.5 days of rain, and July is the driest month with only 0.1 rainy days. There are 64.7 rainy days annually in Hayward, which is rainier than most places in California. The rainiest season is Spring when it rains 51% of the time and the driest is Autumn with only a 2% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Berkeley.

Any measurable snowfall is a rare occurance in Hayward.