Rancho Penasquitos weather in October

In October, Rancho Penasquitos sees average daytime highs of 77°F and overnight lows near 57°F, with 0.8 in of rain across 2.8 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 79°F in the first days to 74°F by the end. The sky is clear or mostly clear about 70% 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 Rancho Penasquitos's 5th-clearest and 9th-windiest month. For the whole year in context, see Rancho Penasquitos's year-round climate.

Daytime high
77°
4th warmest
Overnight low
57°
8th coldest
Rainfall
0.8 in
2.8 wet days
Daylight
11 h 12 min
5:58 AM – 5:09 PM
Cloud cover
27%
5th clearest
Wind
4 mph
9th windiest
Solar energy
4.92 kWh/m²
Travel score
8.6
out of 10

Rancho Penasquitos is human settlement in San Diego, California, United States of America.

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 79°F in the first days to 74°F by the end.

A typical October day in Rancho Penasquitos reaches about 77°F in the afternoon and slips back to 57°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 67°F and 87°F. Set against its neighbours, October runs about 5°F cooler than September and about 7°F warmer than November.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18060
28060
38060
47959
57959
67959
77959
87858
97858
107858
117858
127858
137758
147757
157757
167757
177757
187657
197656
207656
217656
227656
237556
247555
257555
267555
277455
287454
297454
307454
317353

Rancho Penasquitos 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
Jan64° / 44°2.96.210.16.7
Feb64° / 46°3.87.410.86.3
Mar66° / 48°2.56.411.76.8
Apr69° / 51°1.24.412.87.6
May72° / 55°0.62.613.78.3
Jun77° / 59°0.10.614.19.2
Jul81° / 64°0.11148.6
Aug83° / 65°0.10.513.27.9
Sep82° / 63°0.2112.28.3
Oct77° / 57°0.82.811.28.6
Nov70° / 50°1.33.710.37.9
Dec64° / 44°2.35.49.96.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% 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 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38614
48713
58713
68713
78614
88515
98515
108515
118515
128515
138416
148317
158218
168218
178119
188020
197921
207921
217822
227723
237723
247624
257624
267624
277624
287624
297624
307624
317624

Chance of precipitation in October

Any precipitation

Rancho Penasquitos gets around 0.8 in of rain over 2.8 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 9% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
77
87
97
108
118
128
138
149
159
169
179
189
1910
2010
2110
2210
2310
2411
2511
2610
2710
2810
2910
3010
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 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14045142
24244122
34443111
44642101
5484191
6514081
7523981
8543871
9563761
10563761
11583651
12583651
13603541
14603541
15613441
16623431
17633331
18643231
19653131
20673021
21682921
22702721
23712621
24752410
25772210
26792010
27811810
28841600
29861400
30871300
31891100

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 5:47 AM to 6:11 AM, and sunset from 5:28 PM to 4:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:475:28
211.65:485:26
311.65:495:25
411.65:495:24
511.55:505:22
611.55:515:21
711.55:515:20
811.45:525:18
911.45:535:17
1011.45:545:16
1111.35:555:15
1211.35:555:13
1311.35:565:12
1411.25:575:11
1511.25:585:10
1611.25:585:09
1711.15:595:07
1811.16:005:06
1911.16:015:05
2011.06:025:04
2111.06:025:03
2211.06:035:02
2310.96:045:01
2410.96:055:00
2510.96:064:59
2610.86:074:58
2710.86:084:57
2810.86:084:56
2910.86:094:55
3010.76:104:54
3110.76:114:53

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.92 kWh/m².

For context, solar energy here swings from a low near 3.13 kWh/m² to a high of 8.17 kWh/m² in June across the year — October's 4.92 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.2Bright
115.2Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.6Bright
234.6Bright
244.5Bright
254.5Bright
264.5Bright
274.4Bright
284.4Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in October

Is October a good time to visit Rancho Penasquitos?

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

8.6
Sightseeing
2nd-best month of the year
7.6
Beach & pool
5th-best month of the year

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

What to pack for Rancho Penasquitos in October

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

In October, Rancho Penasquitos sees daytime highs around 77°F and nights near 57°F. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near Rancho Penasquitos 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 at the nearest coast (about 16 mi away) is warmest in August at about 70°F and coldest in February near 59°F.

It's comfortable for a long swim from Jul 8 to Oct 6 — about 3 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb59Cool
Mar60Cool
Apr61Cool
May64Cool
Jun66Cool
Jul69Refreshing
Aug70Refreshing
Sep70Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in Rancho Penasquitos 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 Rancho Penasquitos peaks around June 23 at about 11 (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 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Rancho Penasquitos 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 Rancho Penasquitos is worst in September — around 26 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (May, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 1625 µg/m³May 168 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar12Moderate
Apr11Good
May8Good
Jun11Good
Jul11Good
Aug15Moderate
Sep26Moderate
Oct14Moderate
Nov12Moderate
Dec16Moderate
Location & terrain

Where is Rancho Penasquitos?

Rancho Penasquitos sits at 33.0°N, 117.1°W, 600 ft above sea level, in United States. The nearest listed city is Mira Mesa, 3.7 mi away.

Topography around Rancho Penasquitos

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

Within 2 miles, the terrain around Rancho Penasquitos has significant variations in elevation — a maximum elevation change of 1,302 ft around an average of 617 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,835 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,450 ft.

The land around Rancho Penasquitos is covered by artificial surfaces (45%), trees (25%) and shrubs (22%) within 2 miles, artificial surfaces (29%), trees (26%) and shrubs (24%) within 10 miles, and shrubs (27%) and water (27%) within 50 miles.

2 miles
1,302 ft
10 miles
2,835 ft
50 miles
6,450 ft
treesshrubsgrasslandartificial surfacesbare terrainwater
October weather nearby: Mira Mesa 3.7 mi · Poway 4.3 mi · Escondido 11 mi · Encinitas 12 mi · Santee 12 mi · La Jolla 12 mi · San Marcos 13 mi · Lakeside 13 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 Rancho Penasquitos (32.9595°, -117.1153°, elevation 600 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).