Seal Beach has warm winters and pleasant summers, with very little rain
A typical July afternoon reaches 78°, a January night drops to 47°, and snow is almost unheard of.
A year in Seal Beach at a glance
Each month’s typical high and low, and what it brings.
What stands out about Seal Beach’s climate
Read from where Seal Beach sits among California’s towns. The page puts what stands out first.
What a year in Seal Beach feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Warmer than it used to be
The last 30 years in Seal Beach averaged 2.3° warmer than the 1900s. The biggest change is in January (+3.2°).
A bigger shift than in 99% of U.S. towns.
Change by month
Rain and snow in Seal Beach
February is the wettest month and August the driest. Rain or snow falls on about 34 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
No measurable snow in a normal year.
A year-round growing season
Freezing nights are uncommon in Seal Beach.
90° days by month
Average days at 90° or more
Living with Seal Beach’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
Only 1% of years see a freezing night, so tender plants can stay out most winters.
About 0.0" in a normal winter.
About 23 days a year reach 90°, and July afternoons average 78°.
The nicest months are January, February, March, April, May, June, July, August, September, October, November and December. 5.3 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Seal Beach and its neighbors
Los Alamitos has the coldest January nights next door (47°) and Westminster the hottest July afternoons (82°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
How Seal Beach compares
Against every U.S. town on TownTapestry, each counted once, with its place in California.
Seal Beach weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 68° | 47° | 2.7" | 0 | 6 | 0 | 54° – 63° |
| February | 67° | 49° | 3.1" | 0 | 6 | 0 | 53° – 64° |
| March | 68° | 51° | 1.6" | 0 | 5 | 0 | 54° – 67° |
| April | 71° | 53° | 0.6" | 0 | 2 | 0 | 58° – 66° |
| May | 72° | 57° | 0.2" | 0 | 1 | 0 | 60° – 70° |
| June | 74° | 60° | 0.1" | 0 | 1 | 0 | 64° – 71° |
| July | 78° | 64° | 0.0" | 0 | 1 | 0 | 67° – 76° |
| August | 80° | 64° | 0.0" | 0 | 0 | 0 | 69° – 75° |
| September | 80° | 62° | 0.1" | 0 | 0 | 0 | 68° – 76° |
| October | 77° | 59° | 0.4" | 0 | 2 | 0 | 64° – 74° |
| November | 73° | 52° | 0.7" | 0 | 3 | 0 | 56° – 65° |
| December | 67° | 47° | 1.9" | 0 | 6 | 0 | 54° – 61° |
| Year | 73° | 55° | 11.4" | 0.0" | 34 | 0 |
Heating and cooling a home in Seal Beach
50% of the work is heating.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 54° to 67°. August is the most reliable, staying within 6°.
Common questions about Seal Beach’s climate
What is the coldest month in Seal Beach?
December, with a typical high of 67° and a low of 47°.
What is the hottest month in Seal Beach?
August, with a typical high of 80° and a low of 64°. About 23 days a year reach 90°.
How much snow does Seal Beach get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Seal Beach?
Frost is uncommon. Only 1% of years see a night at 32° or below.
What is the rainiest month in Seal Beach?
February, with 3.1 inches of rain and melted snow. The year totals 11 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Seal Beach.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Seal Beach itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Torrance Airport, CA (16 mi, snow) and Long Beach Daugherty Fld, CA (6 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.