San Clemente weather in October

In October, San Clemente sees average daytime highs of 20°C and overnight lows near 8°C, with 47 mm of rain across 5.3 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 21°C by the end. The sky is clear or mostly clear about 46% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of October to 13 h 24 min by month's end. Set against the rest of the year, October is San Clemente's 7th-clearest and 4th-windiest month. For the whole year in context, see San Clemente's year-round climate.

Daytime high
20°
7th warmest
Overnight low
6th coldest
Rainfall
47 mm
5.3 wet days
Daylight
12 h 54 min
7:04 AM – 7:58 PM
Cloud cover
47%
7th clearest
Wind
9 km/h
4th windiest
Solar energy
6.3 kWh/m²
Travel score
7.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 21°C by the end.

A typical October day in San Clemente reaches about 20°C in the afternoon and slips back to 8°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, October runs about 3°C warmer than September and about 4°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1197
2198
3198
4198
5198
6198
7198
8198
9198
10198
11198
12208
13208
14208
15208
16208
17208
18208
19209
20209
21219
22219
23219
24219
25219
26219
27219
28219
29229
30229
31229

San Clemente weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 14°5114.18.0
Feb28° / 13°80.913.38.5
Mar25° / 12°151.612.38.8
Apr20° / 544.411.17.5
May16° / 1448.410.25.3
Jun14° / 221129.63.7
Jul13° / 16010.29.83.8
Aug15° / 1319.310.74.6
Sep17° / 736.811.86.0
Oct20° / 475.312.97.2
Nov24° / 10°192.413.98.6
Dec27° / 12°171.714.48.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45446
55446
65644
75644
85743
95743
105842
115842
125941
135941
145941
156040
166040
176040
186040
196139
206139
216139
226337
236337
246337
256436
266535
276535
286535
296634
306634
316634

Chance of precipitation in October

Any precipitation

San Clemente gets around 47 mm of rain over 5.3 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 16% and peaks near 20% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
119
219
319
419
519
619
720
819
919
1019
1119
1218
1318
1417
1517
1616
1716
1816
1915
2015
2115
2215
2314
2414
2514
2614
2713
2813
2913
3013
3113

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10982
11982
12982
13982
14982
15982
16982
17973
18973
19973
20973
21973
22964
23964
24964
25964
26964
27964
28964
29964
30964
31964

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 24 min at the start of October to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over October. Sunrise moves from 7:24 AM to 6:46 AM, and sunset from 7:46 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.47:247:46
212.47:237:46
312.47:217:47
412.57:207:48
512.57:187:49
612.57:177:50
712.67:167:51
812.67:147:51
912.77:137:52
1012.77:117:53
1112.77:107:54
1212.87:097:55
1312.87:077:56
1412.87:067:57
1512.97:057:58
1612.97:047:58
1713.07:027:59
1813.07:018:00
1913.07:008:01
2013.16:598:02
2113.16:578:03
2213.16:568:04
2313.26:558:05
2413.26:548:06
2513.26:538:07
2613.36:528:08
2713.36:518:09
2813.36:498:10
2913.46:488:11
3013.46:478:12
3113.46:468:13

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.3 kWh/m².

For context, solar energy here swings from a low near 2.04 kWh/m² to a high of 8.75 kWh/m² in January across the year — October's 6.3 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.8Bright
85.8Bright
95.9Bright
106.0Bright
116.0Intense
126.1Intense
136.1Intense
146.2Intense
156.3Intense
166.3Intense
176.4Intense
186.4Intense
196.5Intense
206.5Intense
216.6Intense
226.7Intense
236.7Intense
246.8Intense
256.8Intense
266.9Intense
276.9Intense
287.0Intense
297.0Intense
307.1Intense
317.1Intense
Planning a trip in October

Hazard calendar for San Clemente

In seasonPeak

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

San Clemente's rainy season runs May–August, when most of the year's rain falls.

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

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).

7.2
Sightseeing
7th-best month of the year
3.8
Beach & pool
7th-best month of the year

October is one of the better times to visit San Clemente for general sightseeing.

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 20°C and nights near 8°C. Pack sun protection. About 5 days see rain.

sun protection

UV index in San Clemente in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Clemente peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 15UV 13Jun 15UV 2
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar9Very high
Apr5High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

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 February — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateFeb 1425 µg/m³Dec 1412 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb26Moderate
Mar16Moderate
Apr19Moderate
May25Moderate
Jun21Moderate
Jul22Moderate
Aug21Moderate
Sep20Moderate
Oct16Moderate
Nov15Moderate
Dec12Good
Location & terrain

Where is San Clemente?

San Clemente sits at 35.5°S, 71.5°W, 214 m above sea level, in Chile. The nearest listed city is Colbún, 19 km away.

Topography around San Clemente

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Clemente.

Within 3 km, the terrain around San Clemente has only modest variations in elevation — a maximum elevation change of 55 m around an average of 204 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 596 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,923 m.

The land around San Clemente is covered by cropland (63%) within 3 km, cropland (45%), trees (25%) and grassland (22%) within 16 km, and trees (38%) and grassland (33%) within 80 km.

3 km
55 m
16 km
596 m
80 km
3,923 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Colbún 19 km · Talca 19 km · San Javier 23 km · Linares 36 km · Molina 51 km · Longaví 51 km · Sagrada Familia 61 km · Curicó 66 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

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 (-35.5378°, -71.487°, elevation 214 m), 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. 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).