Seaside’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 68°, a January night drops to 42°, and snow is almost unheard of.
A year in Seaside at a glance
Each month’s typical high and low, and what it brings.
What stands out about Seaside’s climate
Compared with towns across the U.S., with Seaside’s place in California beside it.
What a year in Seaside feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
A freeze most winters
Frost and day counts come from NOAA’s station at Monterey Peninsul Airport, 2.9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Seaside’s center in zone 10a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 31°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 18 inches of rain a year
January is the wettest month and July the driest. Rain falls on about 72 days a year. Snow is rare: about 0.0" in a normal year at Monterey Wfo, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Seaside
97% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from December through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Monterey Peninsul Airport.
Living with Seaside’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10a. Frost comes about 5 winters in 10, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: March, April, May, June, July, August, September, October and November. 19 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Seaside from natural hazards, earthquakes are the largest share (68%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Seaside and its neighbors
Every town next door is within a degree of Seaside in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Seaside’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Seaside, CA | 42° | 68° | 18" | 0.0" |
| Port Angeles, WA | 37° | 69° | 28" | 0.4" |
| Makawao, HI | 53° | 75° | 23" | 0.0" |
| Cedar Mill, OR | 36° | 81° | 39" | 3.6" |
| Nantucket, MA | 26° | 76° | 44" | 25" |
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.
Warmer than it used to be
The last 30 years in Seaside averaged 1.9° warmer than the 1900s. The biggest change is in January (+2.6°).
A bigger shift than in 83% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Seaside compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Seaside’s place among California’s.
Seaside weather by month
Highs, lows and precipitation from NOAA’s grid at Seaside’s center; snow, wet days and snow on the ground from Monterey Wfo, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 61° | 42° | 3.7" | 0.0" | 11 | 0 | 47° – 56° |
| February | 61° | 43° | 3.4" | 0.0" | 12 | 0 | 49° – 58° |
| March | 63° | 44° | 2.9" | 0.0" | 10 | 0 | 49° – 58° |
| April | 64° | 45° | 1.2" | 0.0" | 7 | 0 | 51° – 58° |
| May | 65° | 48° | 0.5" | 0.0" | 4 | 0 | 53° – 61° |
| June | 67° | 51° | 0.1" | 0.0" | 2 | 0 | 55° – 61° |
| July | 68° | 53° | 0.0" | 0.0" | 1 | 0 | 58° – 65° |
| August | 70° | 53° | 0.0" | 0.0" | 2 | 0 | 59° – 66° |
| September | 71° | 53° | 0.1" | 0.0" | 2 | 0 | 58° – 66° |
| October | 71° | 49° | 0.8" | 0.0" | 4 | 0 | 57° – 65° |
| November | 65° | 45° | 1.7" | 0.0" | 8 | 0 | 50° – 58° |
| December | 61° | 42° | 3.1" | 0.0" | 10 | 0 | 47° – 55° |
| Year | 66° | 47° | 17.7" | 0.0" | 72 | 0 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 49° to 58°. June is the most reliable, staying within 6°.
Where Seaside’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Seaside’s center.
- Snow: Monterey Wfo, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Monterey Peninsul Airport, 2.9 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Seaside’s climate
What is the weather like in Seaside?
A typical July afternoon reaches 68°, a January night drops to 42°, and snow is almost unheard of. Milder January nights than 91% of U.S. towns; cooler July afternoons than all but 63 U.S. towns.
How cold does it get in Seaside in winter?
December nights average 42°. About 2 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 47°.
How much snow does Seaside get?
About 0.0 inches in a normal winter at Monterey Wfo, CA, so most winters see none.
How hot does it get in Seaside?
July, with a typical high of 68° and a low of 53°. About 2 days a year reach 90° (Monterey Peninsul Airport).
When is the first and last frost in Seaside?
There is no reliable frost date: a 32° night comes in about 53% of winters at Monterey Peninsul Airport, so most years bring a freeze but some pass without one.
What growing zone is Seaside in?
Zone 10a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 31°.
What is the best time of year to visit Seaside?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, June, July, August, September, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Seaside getting warmer?
Yes: 1991–2020 averaged 1.9° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 83% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Seaside.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.