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Coldest beach in California in August

404 coastal locations in California ranked by their typical August sea temperature. State-wide average in August: 16.6°C.

Coldest in August

Clear Lake

12.3°C

State August average

16.6°C

across 404 coastal locations in California

Vs annual mean

+2.1°C

above the year-round state average

What the California water feels like in August

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 August fits in the year

August 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 August 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 August

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

# Location August mean
1 Blakes Landing, Tomales Bay California 14.6°C
2 Drakes Bay, Point Reyes California 14.6°C
3 Inverness, Tomales Bay California 14.6°C
4 Marshall, Tomales Bay California 14.6°C
5 Drakes Bay California 14.5°C
6 Inverness California 14.5°C
7 Point Reyes California 14.5°C
8 Tomales bay California 14.5°C
9 Trinidad California 13.4°C
10 Trinidad Harbor California 13.4°C
11 Bayview California 13.4°C
12 Eureka California 13.4°C
13 Crescent City California 13.3°C
14 Pyramid Point, Smith River California 13.3°C
15 Requa Dock California 13.3°C
16 Mendocino, Mendocino Bay California 13.3°C
17 Noyo Harbor, Fort Bragg California 13.3°C
18 Noyo River California 13.3°C
19 Arcata Wharf, Humboldt Bay California 13.2°C
20 Bucksport, Humboldt Bay California 13.2°C
21 Elk River Railroad Bridge, Humboldt Bay California 13.2°C
22 Eureka, Humboldt Bay California 13.2°C
23 Eureka Slough Bridge, Humboldt Bay California 13.2°C
24 Fields Landing, Humboldt Bay California 13.2°C
25 Hookton Slough, Humboldt Bay California 13.2°C
Show 25 more ▸
26 Mad River Slough, Arcata Bay, Humboldt Bay California 13.2°C
27 North Spit, Humboldt Bay California 13.2°C
28 Samoa, Humboldt Bay California 13.2°C
29 King Salmon California 13.2°C
30 Bodega Bay California 13.2°C
31 Jenner California 13.2°C
32 Salmon Creek California 13.2°C
33 Westport California 13.1°C
34 Fort Bragg California 13.0°C
35 Glass Beach California 13.0°C
36 Mendocino California 13.0°C
37 Shelter Cove California 12.9°C
38 Cockrobin Island Bridge, Eel River, San Francisco California 12.8°C
39 Shasta Lake California 12.8°C
40 Bodega Harbor entrance California 12.8°C
41 Fort Ross California 12.8°C
42 Dillon Beach California 12.7°C
43 Lake Almanor California 12.7°C
44 Sea Ranch California 12.7°C
45 Arena Cove California 12.6°C
46 Point Arena California 12.6°C
47 Green Cove California 12.4°C
48 Clear Lake California 12.3°C
49 Lake Sonoma California 12.3°C
50 Lakeport California 12.3°C

Warmest 10 in California in August

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

# Location August mean
1 Black's Beach California 22.1°C
2 Del Mar California 22.1°C
3 La Jolla Cove California 22.1°C
4 La Jolla Shores California 22.1°C
5 La Jolla California 22.1°C
6 Mission Beach California 22.1°C
7 Scripps Pier California 22.1°C
8 Solana Beach California 22.1°C
9 Cardiff California 22.0°C
10 Carlsbad California 22.0°C

Other US states

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