Seaside weather in October

In October, Seaside sees average daytime highs of 67°F and overnight lows near 51°F, with 0.9 in of rain across 2.5 wet days and about 11.1 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 69°F in the first days to 65°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 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Seaside's 5th-clearest and 11th-windiest month. For the whole year in context, see Seaside's year-round climate.

Daytime high
67°
4th warmest
Overnight low
51°
9th coldest
Rainfall
0.9 in
2.5 wet days
Daylight
11 hours
6:21 AM – 5:24 PM
Cloud cover
28%
5th clearest
Wind
4 mph
11th windiest
Solar energy
4.52 kWh/m²
Travel score
7.9
out of 10

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

Density
1,360/km²
people per km²
Founded
1954

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 69°F in the first days to 65°F by the end.

A typical October day in Seaside reaches about 67°F in the afternoon and slips back to 51°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 60°F and 76°F. Set against its neighbours, October runs about 3°F cooler than September and about 6°F warmer than November.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16953
26952
36952
46952
56952
66952
76952
86852
96852
106852
116851
126851
136851
146851
156851
166751
176751
186751
196751
206751
216750
226650
236650
246650
256650
266550
276549
286549
296549
306449
316449

Seaside 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
Jan56° / 44°4.29.19.84.0
Feb57° / 44°4.29.610.64.0
Mar58° / 45°3.39.111.74.5
Apr59° / 46°1.55.512.95.3
May62° / 48°0.62.913.96.6
Jun66° / 50°0.10.614.58.1
Jul70° / 53°0.00.214.28.7
Aug71° / 54°0.10.213.48.8
Sep70° / 53°0.10.612.28.7
Oct67° / 51°0.92.511.17.9
Nov61° / 46°1.95.8105.7
Dec56° / 43°3.88.59.54.0

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 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38812
48713
58713
68614
78515
88416
98416
108317
118317
128317
138218
148218
158119
168119
178119
188119
198020
208020
218020
228020
238020
247921
257921
267921
277822
287723
297624
307525
317426

Chance of precipitation in October

Any precipitation

Seaside gets around 0.9 in of rain over 2.5 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 14% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
13
24
34
44
54
65
75
85
95
106
116
126
136
146
157
167
177
188
198
209
219
2210
2310
2411
2511
2612
2712
2813
2913
3014
3114

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1937
2937
3946
4946
5955
6955
7955
8955
9955
10955
11955
12955
13955
14946
15946
16946
17946
18946
19946
20955
21955
22955
23955
24964
25964
26964
27973
28973
29973
30973
31973

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 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:07 AM to 6:36 AM, and sunset from 5:45 PM to 5:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:075:45
211.66:085:44
311.66:095:42
411.56:105:41
511.56:115:39
611.46:125:38
711.46:135:36
811.46:145:35
911.36:155:34
1011.36:155:32
1111.26:165:31
1211.26:175:29
1311.26:185:28
1411.16:195:27
1511.16:205:25
1611.06:215:24
1711.06:225:23
1811.06:235:21
1910.96:245:20
2010.96:255:19
2110.96:265:17
2210.86:275:16
2310.86:285:15
2410.86:295:14
2510.76:305:13
2610.76:315:12
2710.66:325:10
2810.66:335:09
2910.66:345:08
3010.56:355:07
3110.56:365:06

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.52 kWh/m².

For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 8.03 kWh/m² in June across the year — October's 4.52 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.5Bright
174.5Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
313.8Moderate
Planning a trip in October

Hazard calendar for Seaside

In seasonPeak

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

Seaside's rainy season runs December–March, 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 Seaside?

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

7.9
Sightseeing
5th-best month of the year
3.8
Beach & pool
4th-best month of the year

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

What to pack for Seaside in October

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

In October, Seaside sees daytime highs around 67°F and nights near 51°F. Worth packing: sun protection.

sun protection

Sea temperature near Seaside in October

The nearest coast averages about 58°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 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 Seaside in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Seaside 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 Seaside 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 Seaside is worst in August — around 22 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (June, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1920 µg/m³Jun 135 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar8Good
Apr7Good
May6Good
Jun5Good
Jul8Good
Aug22Moderate
Sep15Moderate
Oct12Moderate
Nov8Good
Dec7Good
Location & terrain

Where is Seaside?

Seaside sits at 36.6°N, 121.9°W, 23 ft above sea level, in United States. The nearest listed city is Monterey, 2.5 mi away.

Topography around Seaside

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

Within 2 miles, the terrain around Seaside has only modest variations in elevation — a maximum elevation change of 417 ft around an average of 89 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,218 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,883 ft.

The land around Seaside is covered by artificial surfaces (39%) and water (36%) within 2 miles, water (39%) and trees (31%) within 10 miles, and water (33%), trees (28%) and grassland (27%) within 50 miles.

2 miles
417 ft
10 miles
2,218 ft
50 miles
5,883 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Monterey 2.5 mi · Pacific Grove 3.7 mi · Marina 5.6 mi · Salinas 12 mi · Prunedale 15 mi · Watsonville 21 mi · Big Sur 24 mi · Live Oak 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 Seaside (36.6111°, -121.8516°, elevation 23 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).