Newport Beach, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Newport Beach weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——72°63°—
- MondayJul 6Overcast——71°61°-1°
- TuesdayJul 7Mostly Clear——81°61°+10°
- WednesdayJul 8Clear——84°68°+3°
- ThursdayJul 9Clear——82°69°-2°
- FridayJul 10Mostly Clear——79°68°-3°
- SaturdayJul 11Overcast——80°68°+1°
AQI 35 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.5 µg/m³ (AQI 52) with a 0.75 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 9.5 µg/m³ (AQI 52) with a 0.75 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.75
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:07 PM
- Moonset
- 11:10 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Newport Beach at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: March 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 92660, 92661, 92662, 92663
16-Day Forecast — Newport Beach
- Sun72°63°1%
- Mon71°61°1%
- Tue81°61°0%
- Wed84°68°0%
- Thu82°69°0%
- Fri79°68°0%
- Sat80°68°1%
- Sun82°69°2%
- Mon83°71°5%
- Tue82°71°8%
- Wed88°74°5%
- Thu90°74°6%
- Fri97°79°13%
- Sat97°78°13%
- Sun85°75°10%
- Mon88°74°6%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Newport Beach
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
Newport Beach's warmest month is August (~71°F mean) and its coldest is December (~56°F). Rainfall peaks in February (3.4 inches) and bottoms out in August (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 56° | 2.8″ | 5 |
| February | 56° | 3.4″ | 5 |
| March | 59° | 1.6″ | 3 |
| April | 61° | 0.8″ | 2 |
| May | 65° | 0.2″ | 1 |
| June | 67° | 0.1″ | 1 |
| July | 70° | 0.1″ | 0 |
| August | 71° | 0.0″ | 0 |
| September | 70° | 0.2″ | 0 |
| October | 66° | 0.5″ | 1 |
| November | 60° | 1.1″ | 1 |
| December | 56° | 1.9″ | 3 |
Regional context
Newport Beach swings from 56°F in January to 70°F in July (14°F) per NOAA NCEI 1991-2020 normals; precipitation in Newport Beach runs about 12.7 inches on roughly 23 measurable days.
Newport Beach's moisture rides winter storm tracks: February brings 3.4 inches over 5.3 wet days, while August sees only 0.0 inches across 0.0 days in the dry warm season. That cool-season-wet pattern aligns Newport Beach with places like Costa Mesa, CA, Irvine, CA and Laguna Beach, CA.
With a coldest-month mean of 56°F, Newport Beach stays mostly frost-free and grows year-round. The August peak near 71°F is Newport Beach's real limit, pushing cool-season vegetables to spring and fall. Across Newport Beach, elevation and tree cover drive a 4-7°F spread in Newport Beach's overnight lows.
Similar climates: Costa Mesa, CA, Irvine, CA, Laguna Beach, CA, Laguna Woods, CA, Fountain Valley, CA.
Frequently asked
- When does it freeze in Newport Beach?
- In Newport Beach, expect the last spring frost near mid-March; Newport Beach's first autumn frost comes around mid-December.
- What is the rainy season in Newport Beach?
- February is the wettest month in Newport Beach, about 3.4 inches on average; the year totals roughly 13 inches.
- What is the warmest month in Newport Beach?
- The warmest stretch in Newport Beach comes in August, around 71°F on average.
- What is the coldest month in Newport Beach?
- On average December is the chilliest month in Newport Beach, about 56°F.
- When can I start a vegetable garden in Newport Beach?
- Frost-hardy sowings begin at mid-March in Newport Beach; warm-season starts follow two weeks on.
- How many rainy days does Newport Beach get?
- Expect roughly 23 wet days a year in Newport Beach.
- What hardiness zone is Newport Beach?
- Newport Beach's USDA zone comes from its December mean (56°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Newport Beach?
- Newport Beach's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Newport Beach?
- See this week's day-by-day rain chances for Newport Beach in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Newport Beach?
- Current conditions for Newport Beach and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Newport Beach forecast updated?
- The Newport Beach forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Newport Beach?
- Today's sunrise and sunset times for Newport Beach are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Newport Beach?
- The next few days in Newport Beach's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Newport Beach, California has a hot-summer Mediterranean climate: January averages roughly 56°F, July about 70°F, 14°F between them.
Newport Beach sees close to 13 inches of precipitation annually, falling across some 23 wet days.
At 33.6°N, Newport Beach's 14°F summer-to-winter swing sets when Newport Beach's gardens wake and when frost returns.
ZIP codes in Newport Beach
- 92662
- 92663
- 92660
- 92661
- 92625
- 92657
- 92658
- 92659