2024 Compare Climate & Weather:
Tustin, CA vs Costa Mesa, CA
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Highlights
On average, there are 274 sunny days per year in Costa Mesa. Tustin averages 278 sunny days per year. The US average is 205 sunny days.
Costa Mesa, California gets 12 inches of rain, on average, per year. Tustin, California gets 13.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Costa Mesa averages 0 inches of snow per year. Tustin averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Costa Mesa, California
Summer High: the July high is around 77.7 degrees
Winter Low: the January low is 47.8
Rain: averages 12 inches of rain a year
Snow: averages 0 inches of snow a year
Tustin, California
Summer High: the July high is around 82.3 degrees
Winter Low: the January low is 46.5
Rain: averages 13.1 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
Costa MesaThe annual BestPlaces Comfort Index for Costa Mesa is 9.3 (10=best), which means it is one of the most pleasant places in California.
9.3 / 10
June, October and September are the most pleasant months in Costa Mesa, while January and February are the least comfortable months.
TustinThe annual BestPlaces Comfort Index for Tustin is 9.4 (10=best), which means it is one of the most pleasant places in California.
9.4 / 10
July, June and May are the most pleasant months in Tustin, while December and January are the least comfortable months.
Today's Weather - Tustin, CA
10 PM PST
Mostly Cloudy
63°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Mostly Cloudy | 61° / 76° | S 5 mph |
| Saturday Night | Partly Cloudy | 60° / 82° | W 0 to 5 mph |
| Sunday Night | Partly Cloudy | 62° / 84° | NW 0 to 5 mph |
| Monday Night | Patchy Fog | 63° / 83° | SW 0 to 10 mph |
| Tuesday Night | Partly Cloudy | 63° / 82° | SW 0 to 5 mph |
| Wednesday Night | Patchy Fog | 63° / 82° | W 0 to 10 mph |
| Thursday Night | Partly Cloudy | 64° / 82° | W 0 to 10 mph |
Today's Weather - Costa Mesa, CA
10 PM PST
Mostly Cloudy
62°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Mostly Cloudy | 61° / 73° | S 5 mph |
| Saturday Night | Partly Cloudy | 60° / 77° | W 0 to 5 mph |
| Sunday Night | Partly Cloudy | 60° / 78° | NW 0 to 10 mph |
| Monday Night | Patchy Fog | 61° / 78° | S 0 to 10 mph |
| Tuesday Night | Partly Cloudy | 62° / 77° | SW 0 to 10 mph |
| Wednesday Night | Patchy Fog | 62° / 77° | W 0 to 10 mph |
| Thursday Night | Partly Cloudy | 63° / 77° | W 0 to 10 mph |
Average Monthly High / Low (°F)
| Month | Tustin, CA | Costa Mesa, CA |
|---|
| January | 69° / 47° | 67° / 48° |
| February | 69° / 48° | 67° / 49° |
| March | 70° / 50° | 67° / 51° |
| April | 73° / 53° | 69° / 54° |
| May | 75° / 57° | 71° / 58° |
| June | 78° / 60° | 74° / 61° |
| July | 82° / 64° | 78° / 65° |
| August | 84° / 65° | 79° / 65° |
| September | 83° / 63° | 79° / 63° |
| October | 79° / 58° | 75° / 59° |
| November | 74° / 51° | 71° / 52° |
| December | 68° / 46° | 66° / 47° |
Hot, Freezing, Rainy, Snowy Days: Tustin / Costa Mesa
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 0 / 0 | 6 / 6 | 0 / 0 |
| February | 0 / 0 | 0 / 0 | 6 / 7 | 0 / 0 |
| March | 0 / 0 | 0 / 0 | 6 / 6 | 0 / 0 |
| April | 1 / 1 | 0 / 0 | 3 / 3 | 0 / 0 |
| May | 1 / 0 | 0 / 0 | 1 / 1 | 0 / 0 |
| June | 1 / 1 | 0 / 0 | 1 / 1 | 0 / 0 |
| July | 3 / 2 | 0 / 0 | 0 / 0 | 0 / 0 |
| August | 5 / 2 | 0 / 0 | 0 / 0 | 0 / 0 |
| September | 5 / 3 | 0 / 0 | 1 / 1 | 0 / 0 |
| October | 3 / 2 | 0 / 0 | 2 / 2 | 0 / 0 |
| November | 1 / 0 | 0 / 0 | 4 / 4 | 0 / 0 |
| December | 0 / 0 | 0 / 0 | 5 / 5 | 0 / 0 |
August is the hottest month for Tustin with an average high temperature of 84.1°, which ranks it as cooler than most places in California. In Tustin, there are 9 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Tustin are June, October and May.
August is the hottest month for Costa Mesa with an average high temperature of 79.4°, which ranks it as cooler than most places in California. In Costa Mesa, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Costa Mesa are July, September and August.
December has the coldest nighttime temperatures for Tustin with an average of 45.7°. This is one of the warmest places in California.
December has the coldest nighttime temperatures for Costa Mesa with an average of 47.1°. This is one of the warmest places in California.
In Tustin, there are 19.1 days annually when the high temperature is over 90°, which is cooler than most places in California.
In Costa Mesa, there are 10.4 days annually when the high temperature is over 90°, which is cooler than most places in California.
In Tustin, there are 0.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.
In Costa Mesa, there are 0.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.
In Tustin, 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 Costa Mesa, 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 Tustin with 3.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 13.1 inches in Tustin means that it is drier than most places in California.
February is the wettest month in Costa Mesa with 2.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 12.0 inches in Costa Mesa means that it is drier than most places in California.
February is the rainiest month in Tustin with 6.4 days of rain, and July is the driest month with only 0.4 rainy days. There are 36.0 rainy days annually in Tustin, which is less rainy than most places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 4% chance of a rainy day.
February is the rainiest month in Costa Mesa with 6.6 days of rain, and July is the driest month with only 0.4 rainy days. There are 36.4 rainy days annually in Costa Mesa, which is less rainy than most places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 4% chance of a rainy day.
There is rarely any recorded snowfall in Tustin, ranking it as one of the least snowy places in California.
There is rarely any recorded snowfall in Costa Mesa, ranking it as one of the least snowy places in California.
Any measurable snowfall is a rare occurance in Tustin.
Any measurable snowfall is a rare occurance in Costa Mesa.
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 Tustin 
2 Reviews
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
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
Start Your Review of Tustin
Reviews for Costa Mesa 2 Reviews
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
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
Start Your Review of Costa Mesa
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