Monterey weather in August

In August, Monterey sees average daytime highs of 59°F and overnight lows near 56°F, with 0.1 in of rain across 0.3 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 59°F through the month. The sky is clear or mostly clear about 60% of the time in August, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Monterey's 3rd-clearest and 9th-windiest month. For the whole year in context, see Monterey's year-round climate.

Daytime high
59°
3rd warmest
Overnight low
56°
11th coldest
Rainfall
0.1 in
0.3 wet days
Daylight
13 h 24 min
5:29 AM – 6:54 PM
Cloud cover
37%
3rd clearest
Wind
8 mph
9th windiest
Solar energy
6.91 kWh/m²
Travel score
5.8
out of 10

Monterey is city in Monterey County, California, United States.

Density
893/km²
people per km²
Founded
1770

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 59°F through the month.

A typical August day in Monterey reaches about 59°F in the afternoon and slips back to 56°F overnight — a 2°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 62°F. Set against its neighbours, August runs about 2°F warmer than July and on par with September.

50°55°60°65°70°151015202531
Avg high (°F)Avg low (°F)
15856
25856
35856
45856
55856
65856
75856
85856
95856
105856
115856
125856
135856
145856
155856
165856
175856
185956
195956
205956
215956
225957
235957
245957
255957
265957
275957
285957
295957
305957
315957

Monterey weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan55° / 51°4.5109.83.6
Feb54° / 51°4.59.910.63.3
Mar54° / 51°3.39.211.73.4
Apr54° / 51°1.55.812.93.6
May54° / 52°0.63.313.94.0
Jun55° / 53°0.21.314.54.6
Jul57° / 55°0.00.114.25.2
Aug59° / 56°0.10.313.45.8
Sep60° / 57°0.10.712.26.2
Oct60° / 56°0.92.711.16.0
Nov57° / 54°2.15.8104.7
Dec55° / 52°4.09.69.53.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37822
47921
57921
67921
77822
87822
97822
107822
117822
127822
137822
147822
157822
167921
177921
187921
197921
208020
218020
228020
238119
248119
258119
268317
278317
288317
298416
308416
318515

Chance of precipitation in August

Any precipitation

Monterey gets around 0.1 in of rain over 0.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

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

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
164360
263370
362380
461390
560400
659410
757430
856440
956440
1055450
1154460
1253470
1353470
1452480
1552480
1651481
1750491
1850491
1950491
2050491
2149492
2249492
2349492
2449492
2549492
2649493
2749493
2849483
2949483
3050473
3150473

Wind in August

Winds average 8 mph in August.

Across August, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
277light breeze
287light breeze
297light breeze
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 5:17 AM to 5:42 AM, and sunset from 7:10 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:177:10
213.95:187:09
313.85:197:08
413.85:197:07
513.85:207:06
613.75:217:05
713.75:227:04
813.75:237:03
913.65:247:02
1013.65:247:01
1113.65:257:00
1213.55:266:59
1313.55:276:58
1413.55:286:56
1513.45:296:55
1613.45:296:54
1713.45:306:53
1813.35:316:51
1913.35:326:50
2013.35:336:49
2113.25:346:47
2213.25:346:46
2313.25:356:45
2413.15:366:43
2513.15:376:42
2613.05:386:41
2713.05:396:39
2813.05:396:38
2912.95:406:36
3012.95:416:35
3112.95:426:33

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.91 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 7.79 kWh/m² in June across the year — August's 6.91 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.2Intense
47.2Intense
57.2Intense
67.2Intense
77.1Intense
87.1Intense
97.1Intense
107.1Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
156.9Intense
166.9Intense
176.9Intense
186.9Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.7Intense
246.7Intense
256.7Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.5Intense
316.5Intense
Planning a trip in August

Hazard calendar for Monterey

In seasonPeak

None of Monterey's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Monterey's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Monterey?

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

5.8
Sightseeing
3rd-best month of the year
Beach & pool
never really warm enough

August is a reasonable time to visit Monterey for sightseeing.

What to pack for Monterey in August

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

In August, Monterey sees daytime highs around 59°F and nights near 56°F. Pack sun protection. Worth having: a warm layer.

sun protectiona warm layer

Sea temperature near Monterey in August

The nearest coast averages about 58°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 September at about 58°F and coldest in April near 54°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan55Bracing
Feb55Bracing
Mar55Bracing
Apr54Bracing
May54Bracing
Jun55Bracing
Jul57Bracing
Aug58Bracing
Sep58Bracing
Oct58Bracing
Nov57Bracing
Dec55Bracing

UV index in Monterey 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 Monterey peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 13UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Moderate

Air quality in Monterey 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 Monterey is worst in August — around 17 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (June, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1816 µg/m³Jun 186 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar8Good
Apr7Good
May7Good
Jun6Good
Jul6Good
Aug17Moderate
Sep11Good
Oct10Good
Nov9Good
Dec6Good
Location & terrain

Where is Monterey?

Monterey sits at 36.6°N, 121.9°W, 26 ft above sea level, in United States. The nearest listed city is Pacific Grove, 1.9 mi away.

Topography around Monterey

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

Within 2 miles, the terrain around Monterey has significant variations in elevation — a maximum elevation change of 843 ft around an average of 197 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,805 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,883 ft.

The land around Monterey is covered by trees (37%), artificial surfaces (31%) and water (27%) within 2 miles, water (51%) and trees (28%) within 10 miles, and water (35%), trees (29%) and grassland (25%) within 50 miles.

2 miles
843 ft
10 miles
2,805 ft
50 miles
5,883 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Pacific Grove 1.9 mi · Seaside 2.5 mi · Marina 7.5 mi · Salinas 14 mi · Prunedale 17 mi · Watsonville 23 mi · Big Sur 24 mi · Santa Cruz 27 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 Monterey (36.6002°, -121.8947°, elevation 26 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).