Climate and average weather in Newport Beach

In Newport Beach, the weather is mild, fairly dry, and clear and remarkably steady, with daytime highs holding near mild levels all year. The wettest stretch peaks around February.

Best: late May to late November

Over the course of the year, the temperature in Newport Beach typically varies from 54°F to 69°F, and is rarely below 51°F or above 74°F. August is the hottest month of the year, while February is the coldest.

Based on the travel score, the best time of year to visit Newport Beach for warm-weather activities is from late May to late November.

Hottest
Aug
69°
Coldest
Feb
54°
Wettest
Feb
2.8 in
Driest
Aug
0.0 in
Rain / yr
11.3 in
31 wet days
Daylight
9.8–14.2 h
shortest–longest
Elevation
10 ft
33.6°N
Clearest
Aug
19% cloud

Newport Beach is city in Orange County, California, United States.

Density
635/km²
people per km²
Founded
1870

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Newport Beach weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late May to late November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Newport Beach, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Newport Beach stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 69°F and low of 66°F; the coolest is February, with an average low of 54°F and high of 59°F.

Days typically run about 4°F warmer than nights year-round.

50°55°60°65°70°75°80°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)Avg low (°F)
Jan6054
Feb5954
Mar6055
Apr6157
May6259
Jun6561
Jul6865
Aug6966
Sep6965
Oct6763
Nov6459
Dec6055

Average hourly temperature in Newport Beach

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 69°F, and coldest before dawn in February, near 54°F.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Newport Beach weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 54°2.65.4105.4
Feb59° / 54°2.86.110.85.2
Mar60° / 55°1.6511.75.5
Apr61° / 57°0.62.212.86.2
May62° / 59°0.31.413.76.8
Jun65° / 61°0.00.214.27.8
Jul68° / 65°0.00.3148.4
Aug69° / 66°0.00.113.28.8
Sep69° / 65°0.10.512.28.6
Oct67° / 63°0.51.911.28.0
Nov64° / 59°0.72.510.37.2
Dec60° / 55°1.94.99.85.7

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Newport Beach gets about 11.3 in of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.

The wetter season lasts 4.6 months, from around Nov 21 to Apr 8, peaking in February at about 24% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 23.

February is the wettest month by volume, with 2.8 in over about 6 wet days; August is the driest, with 0.0 in.

0%10%20%30%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainFeb 22 · 24%Jun 23 · 0%
Rain on a day (%)Rain days
Jan185
Feb216
Mar165
Apr82
May41
Jun10
Jul10
Aug00
Sep21
Oct62
Nov83
Dec165

Monthly rainfall

Over a full year, Newport Beach collects about 11.3 in of rain across 31 wet days — roughly 0.9 in in an average month.

It doesn’t fall evenly. February is the wettest month with 2.8 in, while August is the driest at just 0.0 in. The three wettest months alone bring about 65% of the year’s total.

00.511.522.533.5JanFebMarAprMayJunJulAugSepOctNovDec2.62.81.60.60.30.00.00.00.10.50.71.9
Rainfall (in)Rain days
Jan2.65
Feb2.86
Mar1.65
Apr0.62
May0.31
Jun0.00
Jul0.00
Aug0.00
Sep0.11
Oct0.52
Nov0.73
Dec1.95

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Newport Beach, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around June 10 and lasts for 5.0 months, ending around November 9. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 94% of the time on average.

The cloudier part of the year begins around November 10 and lasts for 7.0 months, ending around June 9. The cloudiest month is February, when it is overcast or mostly cloudy 38% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 15 · 95%Feb 21 · 59%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6337
Feb6238
Mar6535
Apr7327
May7426
Jun8020
Jul9010
Aug946
Sep9010
Oct8119
Nov7426
Dec6634

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 8, brings about 14 h 12 min of light; the shortest, around January 1, only 9 h 48 min — a swing of roughly 4 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan10.07:015:01
Feb10.86:445:29
Mar11.76:095:54
Apr12.85:276:17
May13.74:566:40
Jun14.24:456:58
Jul14.04:566:58
Aug13.25:186:34
Sep12.25:405:52
Oct11.26:025:11
Nov10.36:304:44
Dec9.86:544:41

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Newport Beach averages about 19 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 13 and 26 days.

The sunnier stretch runs 5.0 months, from around Jun 14 to Nov 12. The sunniest month is August, with roughly 26 sunny days (brilliant).

The greyest month is February, down near 14 sunny days — about 44% fewer than the August peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 1826 daysFeb 2613 days
Sunny daysSky
Jan15Mixed
Feb13Mixed
Mar15Mixed
Apr17Bright
May17Bright
Jun19Bright
Jul24Brilliant
Aug26Brilliant
Sep24Brilliant
Oct21Bright
Nov18Bright
Dec16Bright

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Newport Beach, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.2 months, from around June 20 to October 26. The muggiest month is August, when the air feels humid, muggy or worse about 82% of the time.

The most comfortable stretch runs from around October 27 to June 19, and March is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMar 3 · 100%Aug 26 · 14%muggycomfortabledryhumidcomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan928000
Feb928000
Mar8515000
Apr7821100
May5342400
Jun16632000
Jul13455100
Aug01862191
Sep12655171
Oct17453440
Nov5541400
Dec8911000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Newport Beach is steady company: average speeds sit near 7 mphcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 14 · 8 mphOct 23 · 6 mph
Wind speed (mph)Feels
Jan6calm
Feb7calm
Mar7calm
Apr8light breeze
May7calm
Jun7calm
Jul7calm
Aug7calm
Sep7calm
Oct6calm
Nov6calm
Dec6calm

Best time to visit Newport Beach

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Newport Beach throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid November, Newport Beach is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 64°F and 82°F. Based on this score, the best time of year to visit Newport Beach for general outdoor tourist activities is from late May to late November, with a peak score in the third week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 20 · 8.8

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan5.5fair
Feb5.2fair
Mar5.5fair
Apr6.2good
May6.8good
Jun7.8ideal
Jul8.4ideal
Aug8.7ideal
Sep8.6ideal
Oct8.0ideal
Nov7.2good
Dec5.8good

The beach/pool score favors clear, rainless days with daytime highs between 75°F and 93°F. Based on this score, the best time of year to visit Newport Beach for hot-weather activities is from mid July to mid October, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 29 · 5.4

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Newport Beach, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Newport Beach packs about the same all year — highs hold near 69°F. Across the year the things worth having are sun protection and a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Newport Beach sees daytime highs around 69°F and nights near 66°F. Pack sun protection.

Sea temperature near Newport Beach

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore is warmest in August at about 69°F and coldest in February near 59°F.

It's comfortable for a long swim from Jul 13 to Sep 28 — about 2.6 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb59Cool
Mar59Cool
Apr60Cool
May63Cool
Jun65Cool
Jul68Refreshing
Aug69Refreshing
Sep69Refreshing
Oct67Cool
Nov64Cool
Dec60Cool

UV index (midday) in Newport Beach by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Newport Beach peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 17UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7Very high
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Average hourly UV index in Newport Beach

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan2.50
Feb40
Mar50
Apr73.5
May7.54
Jun8.56
Jul8.56
Aug85.5
Sep74
Oct50
Nov2.50
Dec00

Air quality in Newport Beach by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Newport Beach is worst in September — around 49 µg/m³ PM2.5 (poor), about 4.0× the cleanest month (May, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1447 µg/m³May 1713 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar19Moderate
Apr17Moderate
May12Moderate
Jun17Moderate
Jul19Moderate
Aug32Moderate
Sep49Poor
Oct21Moderate
Nov21Moderate
Dec18Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Newport Beach is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 50°F)Frost-free shaded

Growing degree days tally heat above 50°F: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Newport Beach banks about 4,227 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°F·days)
Jan214
Feb192
Mar230
Apr258
May326
Jun390
Jul503
Aug546
Sep520
Oct473
Nov341
Dec233

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Newport Beach receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.9 and 7.9 kWh/m².

The brighter stretch of the year lasts 6.3 months, from around Mar 19 to Sep 27. The brightest month is June, averaging about 7.8 kWh/m² (intense).

The dimmest month is December, down near 3.0 kWh/m² — roughly 61% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 267.9 kWhDec 162.9 kWh
Solar energy (kWh/m²)Level
Jan3.2Moderate
Feb4.1Bright
Mar5.4Bright
Apr6.7Intense
May7.3Intense
Jun7.8Intense
Jul7.7Intense
Aug7.2Intense
Sep6.1Intense
Oct4.7Bright
Nov3.6Moderate
Dec3.0Moderate

Where is Newport Beach?

Newport Beach sits at 33.6°N, 117.9°W, 10 ft above sea level, in United States. The nearest listed city is Costa Mesa, 1.9 mi away.

Topography around Newport Beach

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Newport Beach.

Within 2 miles, the terrain around Newport Beach has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 36 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,168 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,013 ft.

The land around Newport Beach is covered by artificial surfaces (44%) and water (44%) within 2 miles, water (51%) and artificial surfaces (34%) within 10 miles, and water (44%) and artificial surfaces (25%) within 50 miles.

2 miles
125 ft
10 miles
1,168 ft
50 miles
10,013 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Costa Mesa 1.9 mi · Huntington Beach 5.0 mi · UC Irvine 5.0 mi · Fountain Valley 6.2 mi · Irvine 6.8 mi · Westpark 8.1 mi · Tustin Legacy 8.1 mi · Woodbridge 8.7 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Newport Beach (33.6189°, -117.929°, elevation 10 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).