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Coldest beach in California in October

404 coastal locations in California ranked by their typical October sea temperature. State-wide average in October: 16.0°C.

Coldest in October

King Salmon

12.1°C

State October average

16.0°C

across 404 coastal locations in California

Vs annual mean

+1.5°C

above the year-round state average

What the California water feels like in October

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

California monthly average 12.9°C to 16.9°C
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  • Warmest month September 16.9°C
  • Coldest month March 12.9°C
  • Annual mean 14.5°C
  • Months above 20°C 0 of 12

Where October fits in the year

October sits inside the state pattern shown on the left. Browse a different month for a fresh ranking.

California sea temperature map (live)

Today's reading at every California beach we track. The list below uses the typical October mean from a decade of daily history.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest California beaches in October

Sorted by typical October mean. Click any beach for the full location page.

# Location October mean
1 Blakes Landing, Tomales Bay California 14.3°C
2 Drakes Bay, Point Reyes California 14.3°C
3 Inverness, Tomales Bay California 14.3°C
4 Marshall, Tomales Bay California 14.3°C
5 Drakes Bay California 14.2°C
6 Inverness California 14.2°C
7 Point Reyes California 14.2°C
8 Tomales bay California 14.2°C
9 Mendocino, Mendocino Bay California 13.6°C
10 Noyo Harbor, Fort Bragg California 13.6°C
11 Noyo River California 13.6°C
12 Westport California 13.5°C
13 Fort Bragg California 13.3°C
14 Glass Beach California 13.3°C
15 Mendocino California 13.3°C
16 Arena Cove California 13.2°C
17 Point Arena California 13.2°C
18 Bodega Bay California 13.2°C
19 Jenner California 13.2°C
20 Salmon Creek California 13.2°C
21 Shelter Cove California 13.1°C
22 Shasta Lake California 13.1°C
23 Sea Ranch California 12.9°C
24 Bodega Harbor entrance California 12.9°C
25 Fort Ross California 12.9°C
Show 25 more ▸
26 Green Cove California 12.8°C
27 Dillon Beach California 12.8°C
28 Lake Almanor California 12.8°C
29 Clear Lake California 12.8°C
30 Lake Sonoma California 12.8°C
31 Lakeport California 12.8°C
32 Pyramid Point, Smith River California 12.4°C
33 Requa Dock California 12.4°C
34 Crescent City California 12.4°C
35 Trinidad Harbor California 12.4°C
36 Trinidad California 12.4°C
37 Bayview California 12.3°C
38 Eureka California 12.3°C
39 Arcata Wharf, Humboldt Bay California 12.3°C
40 Bucksport, Humboldt Bay California 12.3°C
41 Elk River Railroad Bridge, Humboldt Bay California 12.3°C
42 Eureka, Humboldt Bay California 12.3°C
43 Eureka Slough Bridge, Humboldt Bay California 12.3°C
44 Fields Landing, Humboldt Bay California 12.3°C
45 Hookton Slough, Humboldt Bay California 12.3°C
46 Mad River Slough, Arcata Bay, Humboldt Bay California 12.3°C
47 North Spit, Humboldt Bay California 12.3°C
48 Samoa, Humboldt Bay California 12.3°C
49 Cockrobin Island Bridge, Eel River, San Francisco California 12.2°C
50 King Salmon California 12.1°C

Warmest 10 in California in October

Same data flipped. The warmest spots in the state for this month.

# Location October mean
1 Baby Beach California 20.2°C
2 Capistrano Beach California 20.2°C
3 Dana Point California 20.2°C
4 Doheny Beach California 20.2°C
5 Salt Creek Beach California 20.2°C
6 San Clemente California 20.2°C
7 San Onofre Beach California 20.2°C
8 Trestles Beach California 20.2°C
9 San Clemente Island California 20.1°C
10 Big Bear Lake California 20.0°C

Other US states

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