Photo: Don Ramey Logan · CC BY-SA 4.0Newport Beach’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 79°, a January night drops to 48°, and snow is almost unheard of.
A year in Newport Beach at a glance
Each month’s typical high and low, and what it brings.
What stands out about Newport Beach’s climate
Compared with towns across the U.S., with Newport Beach’s place in California beside it.
What a year in Newport Beach feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Frost and day counts come from NOAA’s station at Santa Ana John Wayne Airport, 4 miles from the city’s center point, at about the same height.
The 2023 USDA map puts Newport Beach’s center in zone 10b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 37°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 12 inches of rain a year
February is the wettest month and August the driest. Rain falls on about 35 days a year. Snow is rare: about 0.0" in a normal year at Santa Ana Fire Stn, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Newport Beach
50% of the work is heating. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Santa Ana John Wayne Airport.
Living with Newport Beach’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10b. Frost almost never comes, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, May, June, July, August, September, October, November and December. 41 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Newport Beach from natural hazards, earthquakes are the largest share (49%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Newport Beach and its neighbors
Irvine the hottest July afternoons (83°, 5° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Newport Beach’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 |
|---|---|---|---|---|
| Newport Beach, CA | 48° | 79° | 12" | 0.0" |
| Makawao, HI | 53° | 75° | 23" | 0.0" |
| Sequim, WA | 34° | 71° | 18" | 1.4" |
| Winston, OR | 37° | 86° | 33" | 0.0" |
| Alpine, TX | 30° | 90° | 15" | 2.2" |
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 Newport Beach averaged 2.1° warmer than the 1900s. The biggest change is in January (+3.1°).
A bigger shift than in 93% 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 Newport Beach compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Newport Beach’s place among California’s.
Newport Beach weather by month
Highs, lows and precipitation from NOAA’s grid at Newport Beach’s center; snow, wet days and snow on the ground from Santa Ana Fire Stn, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 69° | 48° | 2.6" | 0.0" | 6 | 0 | 55° – 63° |
| February | 68° | 48° | 2.9" | 0.0" | 7 | 0 | 53° – 65° |
| March | 69° | 51° | 1.7" | 0.0" | 5 | 0 | 55° – 67° |
| April | 71° | 53° | 0.7" | 0.0" | 3 | 0 | 58° – 66° |
| May | 72° | 57° | 0.2" | 0.0" | 2 | 0 | 61° – 69° |
| June | 75° | 60° | 0.1" | 0.0" | 1 | 0 | 64° – 71° |
| July | 79° | 63° | 0.0" | 0.0" | 1 | 0 | 68° – 77° |
| August | 81° | 64° | 0.0" | 0.0" | 0 | 0 | 69° – 75° |
| September | 81° | 62° | 0.1" | 0.0" | 1 | 0 | 68° – 77° |
| October | 78° | 58° | 0.5" | 0.0" | 2 | 0 | 64° – 74° |
| November | 73° | 52° | 0.8" | 0.0" | 3 | 0 | 57° – 65° |
| December | 68° | 47° | 2.1" | 0.0" | 6 | 0 | 54° – 62° |
| Year | 73° | 55° | 11.6" | 0.0" | 35 | 0 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 55° to 67°. August is the most reliable, staying within 6°.
Where Newport Beach’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 Newport Beach’s center.
- Snow: Santa Ana Fire Stn, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Santa Ana John Wayne Airport, 4 miles from the city’s center point, 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 Newport Beach’s climate
What is the weather like in Newport Beach?
A typical July afternoon reaches 79°, a January night drops to 48°, and snow is almost unheard of. Milder January nights than 95% of U.S. towns; cooler July afternoons than 95% of U.S. towns.
How cold does it get in Newport Beach in winter?
December nights average 47°. A night at 32° or below comes in only some winters (0.0 a year on average). In the coldest December of the last 30 years the month averaged 54°.
How much snow does Newport Beach get?
About 0.0 inches in a normal winter at Santa Ana Fire Stn, CA, so most winters see none.
How hot does it get in Newport Beach?
July, with a typical high of 79° and a low of 63°. About 13 days a year reach 90° (Santa Ana John Wayne Airport).
When is the first and last frost in Newport Beach?
Most years have no frost at all: a 32° night comes in about 0% of winters at Santa Ana John Wayne Airport, usually in December or January.
What growing zone is Newport Beach in?
Zone 10b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 37°.
What is the best time of year to visit Newport Beach?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, May, June, July, August, September, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Newport Beach getting warmer?
Yes: 1991–2020 averaged 2.1° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 93% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Newport Beach.
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.