San Clemente weather in October

In October, San Clemente sees average daytime highs of 76°F and overnight lows near 59°F, with 0.7 in of rain across 2.6 wet days and about 11.2 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 78°F in the first days to 73°F by the end. The sky is clear or mostly clear about 71% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 42 min by month's end. Set against the rest of the year, October is San Clemente's 5th-clearest and 9th-windiest month. For the whole year in context, see San Clemente's year-round climate.

Daytime high
76°
4th warmest
Overnight low
59°
8th coldest
Rainfall
0.7 in
2.6 wet days
Daylight
11 h 12 min
6:01 AM – 5:10 PM
Cloud cover
27%
5th clearest
Wind
4 mph
9th windiest
Solar energy
4.72 kWh/m²
Travel score
8.7
out of 10

San Clemente is city in Orange County, California, United States.

Density
1,300/km²
people per km²
Founded
1928

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 78°F in the first days to 73°F by the end.

A typical October day in San Clemente reaches about 76°F in the afternoon and slips back to 59°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 86°F. Set against its neighbours, October runs about 5°F cooler than September and about 6°F warmer than November.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
17962
27962
37862
47862
57861
67861
77861
87761
97760
107760
117760
127660
137660
147660
157660
167659
177659
187559
197559
207559
217558
227558
237458
247458
257458
267457
277357
287357
297356
307356
317356

San Clemente weather by month

How October compares with the rest of the year at a glance. October is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan63° / 47°3.15.9106.4
Feb63° / 48°3.76.810.86.2
Mar65° / 50°2.16.211.76.7
Apr68° / 53°0.93.312.87.6
May71° / 56°0.4213.78.2
Jun75° / 60°0.10.414.29.2
Jul80° / 65°0.10.4148.8
Aug82° / 66°0.10.213.28.4
Sep81° / 64°0.20.812.28.7
Oct76° / 59°0.72.611.28.7
Nov69° / 52°1.03.210.37.9
Dec63° / 47°2.24.99.86.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18911
28812
38812
48812
58812
68812
78713
88713
98713
108614
118515
128515
138515
148317
158317
168218
178119
188020
197921
207822
217723
227723
237723
247723
257723
267624
277624
287624
297723
307723
317624

Chance of precipitation in October

Any precipitation

San Clemente gets around 0.7 in of rain over 2.6 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 8% and peaks near 11% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
14
25
35
45
55
66
76
86
97
107
117
127
138
148
158
168
179
189
199
209
219
2210
2310
2410
2510
2610
2710
2811
2911
3011
3111

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12541323
22641303
32842283
42942262
53143252
63243232
73344212
83544202
93645182
103745171
113845151
123945141
134046131
144146121
154246111
164345111
174445101
18464491
19474381
20504271
21514171
22543961
23573751
24583651
25623440
26643240
27673030
28692830
29722620
30732520
31752320

Wind in October

Winds average 4 mph in October.

Across October, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over October. Sunrise moves from 5:49 AM to 6:14 AM, and sunset from 5:30 PM to 4:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:495:30
211.65:505:28
311.65:515:27
411.65:515:25
511.55:525:24
611.55:535:23
711.55:545:21
811.45:555:20
911.45:555:19
1011.45:565:18
1111.35:575:16
1211.35:585:15
1311.35:585:14
1411.25:595:13
1511.26:005:11
1611.26:015:10
1711.16:025:09
1811.16:035:08
1911.16:035:07
2011.06:045:05
2111.06:055:04
2211.06:065:03
2310.96:075:02
2410.96:085:01
2510.96:085:00
2610.86:094:59
2710.86:104:58
2810.86:114:57
2910.76:124:56
3010.76:134:55
3110.76:144:54

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.72 kWh/m².

For context, solar energy here swings from a low near 3.01 kWh/m² to a high of 7.82 kWh/m² in June across the year — October's 4.72 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.3Bright
65.2Bright
75.2Bright
85.1Bright
95.1Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.2Bright
284.2Bright
294.2Bright
304.1Bright
314.1Bright
Planning a trip in October

Is October a good time to visit San Clemente?

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

8.7
Sightseeing
3rd-best month of the year
7.4
Beach & pool
5th-best month of the year

October is one of the better times to visit San Clemente for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Clemente in October

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

In October, San Clemente sees daytime highs around 76°F and nights near 59°F. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near San Clemente in October

The nearest coast averages about 67°F in October — 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 70°F and coldest in January near 59°F.

It's comfortable for a long swim from Jul 6 to Oct 6 — about 3.1 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb59Cool
Mar60Cool
Apr61Cool
May63Cool
Jun66Cool
Jul69Refreshing
Aug70Refreshing
Sep70Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in San Clemente in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Clemente peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJun 23UV 10Dec 16UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in San Clemente in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Clemente 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 San Clemente?

San Clemente sits at 33.4°N, 117.6°W, 233 ft above sea level, in United States. The nearest listed city is Dana Point, 5.6 mi away.

Topography around San Clemente

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

Within 2 miles, the terrain around San Clemente has significant variations in elevation — a maximum elevation change of 886 ft around an average of 236 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,280 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,109 ft.

The land around San Clemente is covered by artificial surfaces (35%), water (27%) and trees (21%) within 2 miles, water (44%) within 10 miles, and water (36%) and artificial surfaces (22%) within 50 miles.

2 miles
886 ft
10 miles
2,280 ft
50 miles
6,109 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Dana Point 5.6 mi · San Juan Capistrano 6.2 mi · Laguna Niguel 8.7 mi · Ladera Ranch 9.9 mi · Aliso Viejo 12 mi · Mission Viejo 12 mi · Laguna Beach 12 mi · Laguna Hills 14 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 San Clemente (33.427°, -117.612°, elevation 233 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).