Newport Beach weather in August

In August, Newport Beach sees average daytime highs of 69°F and overnight lows near 66°F, with 0.0 in of rain across 0.1 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 69°F through the month. The sky is clear or mostly clear about 85% of the time in August, and the air most often feels humid.

Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Newport Beach's 1st-clearest and 7th-windiest month. For the whole year in context, see Newport Beach's year-round climate.

Daytime high
69°
1st warmest
Overnight low
66°
12th coldest
Rainfall
0.0 in
0.1 wet days
Daylight
13 h 18 min
5:18 AM – 6:34 PM
Cloud cover
19%
1st clearest
Wind
7 mph
7th windiest
Solar energy
7.24 kWh/m²
Travel score
8.8
out of 10

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.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 69°F through the month.

A typical August day in Newport Beach reaches about 69°F in the afternoon and slips back to 66°F overnight — a 4°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 73°F. Set against its neighbours, August runs about 1°F warmer than July and on par with September.

60°65°70°75°80°151015202531
Avg high (°F)Avg low (°F)
16965
26965
36965
46965
56965
66965
76965
86965
96966
106966
116966
126966
136966
146966
156966
166966
176966
186966
196966
207066
217066
227066
237066
247066
257066
267066
277066
287066
297066
307066
317066

Newport Beach weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

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

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 85% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of August, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4937
5946
6946
7946
8955
9955
10955
11955
12955
13955
14955
15955
16955
17955
18955
19955
20955
21955
22955
23946
24946
25946
26937
27937
28937
29928
30928
31928

Chance of precipitation in August

Any precipitation

Newport Beach gets around 0.0 in of rain over 0.1 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 0% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
291
301
311

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the humid band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12261170
22261170
32261170
42161180
52161180
62161180
72161180
82160190
92160190
102160190
112160190
122160190
132061190
142061190
151961191
161862191
171862191
181763191
191664191
201565191
211565191
221466191
231466191
241466191
251366201
261366201
271365211
281364221
291364221
301462231
311461241

Wind in August

Winds average 7 mph in August.

Across August, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 42 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over August. Sunrise moves from 5:07 AM to 5:29 AM, and sunset from 6:48 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:076:48
213.75:086:48
313.65:096:47
413.65:096:46
513.65:106:45
613.65:116:44
713.55:126:43
813.55:126:42
913.55:136:41
1013.45:146:40
1113.45:146:39
1213.45:156:38
1313.45:166:37
1413.35:176:36
1513.35:176:35
1613.35:186:34
1713.25:196:32
1813.25:196:31
1913.25:206:30
2013.15:216:29
2113.15:226:28
2213.15:226:26
2313.05:236:25
2413.05:246:24
2513.05:256:23
2612.95:256:21
2712.95:266:20
2812.95:276:19
2912.85:276:17
3012.85:286:16
3112.85:296:15

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 7.24 kWh/m².

For context, solar energy here swings from a low near 3.02 kWh/m² to a high of 7.78 kWh/m² in June across the year — August's 7.24 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.5Intense
57.5Intense
67.4Intense
77.4Intense
87.4Intense
97.4Intense
107.4Intense
117.3Intense
127.3Intense
137.3Intense
147.3Intense
157.3Intense
167.2Intense
177.2Intense
187.2Intense
197.2Intense
207.1Intense
217.1Intense
227.1Intense
237.0Intense
247.0Intense
257.0Intense
266.9Intense
276.9Intense
286.9Intense
296.8Intense
306.8Intense
316.7Intense
Planning a trip in August

Is August a good time to visit Newport Beach?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.8
Sightseeing
1st-best month of the year
5.1
Beach & pool
1st-best month of the year

August is one of the better times to visit Newport Beach for general sightseeing.

What to pack for Newport Beach in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

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

sun protection

Sea temperature near Newport Beach in August

The nearest coast averages about 69°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Newport Beach in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

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

Air quality in Newport Beach in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual 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
Location & terrain

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
August weather 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).