2025 Compare Climate & Weather:
Aliso Viejo, CA vs San Marcos, CA

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Highlights

On average, there are 265 sunny days per year in San Marcos. Aliso Viejo averages 281 sunny days per year. The US average is 205 sunny days.

San Marcos, California gets 13.7 inches of rain, on average, per year. Aliso Viejo, California gets 14.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Marcos averages 0 inches of snow per year. Aliso Viejo averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Marcos, California
Summer High: the July high is around 80.6 degrees
Winter Low: the January low is 45
Rain: averages 13.7 inches of rain a year
Snow: averages 0 inches of snow a year

Aliso Viejo, California
Summer High: the July high is around 84.4 degrees
Winter Low: the January low is 43.3
Rain: averages 14.2 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

San Marcos

The annual BestPlaces Comfort Index for San Marcos is 9.1 (10=best), which means it is one of the most pleasant places in California.

9.1 / 10

June, September and July are the most pleasant months in San Marcos, while January and February are the least comfortable months.

Aliso Viejo

The annual BestPlaces Comfort Index for Aliso Viejo is 9.1 (10=best), which means it is one of the most pleasant places in California.

9.1 / 10

June, May and October are the most pleasant months in Aliso Viejo, while February and December are the least comfortable months.

Average Monthly High / Low (°F)

Month	Aliso Viejo, CA	San Marcos, CA
January	67° / 43°	67° / 45°
February	67° / 44°	67° / 46°
March	69° / 46°	68° / 48°
April	73° / 49°	71° / 51°
May	76° / 53°	73° / 55°
June	78° / 58°	76° / 59°
July	84° / 61°	81° / 63°
August	86° / 61°	82° / 64°
September	85° / 59°	81° / 62°
October	78° / 54°	77° / 56°
November	72° / 47°	71° / 49°
December	66° / 42°	66° / 44°

Hot, Freezing, Rainy, Snowy Days: Aliso Viejo / San Marcos

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	2 / 0	6 / 6	0 / 0
February	0 / 0	2 / 0	6 / 7	0 / 0
March	0 / 0	1 / 0	6 / 6	0 / 0
April	1 / 1	0 / 0	3 / 4	0 / 0
May	2 / 1	0 / 0	2 / 2	0 / 0
June	2 / 2	0 / 0	1 / 1	0 / 0
July	6 / 4	0 / 0	1 / 1	0 / 0
August	10 / 6	0 / 0	1 / 1	0 / 0
September	8 / 5	0 / 0	1 / 1	0 / 0
October	3 / 2	0 / 0	2 / 3	0 / 0
November	1 / 1	0 / 0	4 / 4	0 / 0
December	0 / 0	3 / 0	5 / 6	0 / 0

August is the hottest month for Aliso Viejo with an average high temperature of 86.3°, which ranks it as cooler than most places in California. In Aliso Viejo, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Aliso Viejo are October, June and May.

August is the hottest month for San Marcos with an average high temperature of 82.4°, which ranks it as cooler than most places in California. In San Marcos, there are 8 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Marcos are October, June and July.

December has the coldest nighttime temperatures for Aliso Viejo with an average of 42.3°. This is warmer than most places in California.

December has the coldest nighttime temperatures for San Marcos with an average of 44.3°. This is warmer than most places in California.

In Aliso Viejo, there are 33.8 days annually when the high temperature is over 90°, which is cooler than most places in California.

In San Marcos, there are 20.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Aliso Viejo, there are 6.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In San Marcos, there are 1.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Aliso Viejo, 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 San Marcos, 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 Aliso Viejo with 3.5 inches of rain, and the driest month is July 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 14.2 inches in Aliso Viejo means that it is drier than most places in California.

February is the wettest month in San Marcos with 3.1 inches of rain, and the driest month is June with 0.1 inches. The wettest season is Spring with 58% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 13.7 inches in San Marcos means that it is drier than most places in California.

February is the rainiest month in Aliso Viejo with 6.3 days of rain, and July is the driest month with only 0.5 rainy days. There are 36.9 rainy days annually in Aliso Viejo, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 5% chance of a rainy day.

February is the rainiest month in San Marcos with 7.2 days of rain, and August is the driest month with only 0.5 rainy days. There are 41.3 rainy days annually in San Marcos, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 5% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Aliso Viejo.

Any measurable snowfall is a rare occurance in San Marcos.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Aliso Viejo 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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Reviews for San Marcos 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

Start Your Review of San Marcos

See all reviews

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2025 Compare Climate & Weather:
Aliso Viejo, CA vs San Marcos, CA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Aliso Viejo / San Marcos

December has the coldest nighttime temperatures for Aliso Viejo with an average of 42.3°. This is warmer than most places in California.

December has the coldest nighttime temperatures for San Marcos with an average of 44.3°. This is warmer than most places in California.

In Aliso Viejo, there are 33.8 days annually when the high temperature is over 90°, which is cooler than most places in California.

In San Marcos, there are 20.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Aliso Viejo, there are 6.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In San Marcos, there are 1.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

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

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

Any measurable snowfall is a rare occurance in Aliso Viejo.

Any measurable snowfall is a rare occurance in San Marcos.

DID YOU KNOW?

Reviews for Aliso Viejo 2 Reviews

Reviews for San Marcos 2 Reviews

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2025 Compare Climate & Weather:Aliso Viejo, CA vs San Marcos, CA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Aliso Viejo / San Marcos

December has the coldest nighttime temperatures for Aliso Viejo with an average of 42.3°. This is warmer than most places in California.December has the coldest nighttime temperatures for San Marcos with an average of 44.3°. This is warmer than most places in California.

In Aliso Viejo, there are 33.8 days annually when the high temperature is over 90°, which is cooler than most places in California.In San Marcos, there are 20.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Aliso Viejo, there are 6.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.In San Marcos, there are 1.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

There is rarely any recorded snowfall in Aliso Viejo, ranking it as one of the least snowy places in California.There is rarely any recorded snowfall in San Marcos, ranking it as one of the least snowy places in California.

Any measurable snowfall is a rare occurance in Aliso Viejo.Any measurable snowfall is a rare occurance in San Marcos.

DID YOU KNOW?

Reviews for Aliso Viejo 2 Reviews

Reviews for San Marcos 2 Reviews

Most Recent Searches On Compare Climate & Weather

Compare Cost of Living

Zips In Aliso Viejo, California

Zips In SAN MARCOS, CALIFORNIA

Learn More About ALISO VIEJO, CALIFORNIA

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BestPlaces Tools

About BestPlaces

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2025 Compare Climate & Weather:
Aliso Viejo, CA vs San Marcos, CA

December has the coldest nighttime temperatures for Aliso Viejo with an average of 42.3°. This is warmer than most places in California.

December has the coldest nighttime temperatures for San Marcos with an average of 44.3°. This is warmer than most places in California.

In Aliso Viejo, there are 33.8 days annually when the high temperature is over 90°, which is cooler than most places in California.

In San Marcos, there are 20.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Aliso Viejo, there are 6.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In San Marcos, there are 1.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

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

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

Any measurable snowfall is a rare occurance in Aliso Viejo.

Any measurable snowfall is a rare occurance in San Marcos.