Deadman's Surf Break

Lat Long: 37.79° N 122.50° W

Deadman's Surf Forecast and Surf Report

Issued: 10 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Deadman's sea temperature is
17.7° C
3.5° 

Deadman's surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Deadman's surf forecast from 13 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 8AM (local time) - 8ft (2.4m), 8s period, NW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 8PM (local time) - 8ft (2.5m), 8s period, WNW swell with 808 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 8AM (local time) - 8ft (2.4m), 8s period with NW swell.

Best Forecast Surf Conditions for Deadman's this week:

The surf forecast for Deadman's over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 8AM. The primary swell is predicted to be 2.4m and 8s period with a secondary swell of 1.8m and 8s. Another secondary swell of 0.6m and 14s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Deadman's in the next 16 days are 2.5m 8s and forecast to arrive on Tuesday (Aug 18) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 16s period and expected on Sunday (Aug 16) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 19th Aug)8ft (2.4m) 8s
Best Surf 8AM (Wed 19th Aug)8ft (2.4m) 8s
Most Powerful 8PM (Tue 18th Aug)8ft (2.5m) 8s

Table - best surf conditions forecast for Deadman's over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s break down what Deadman's has cooking.

Honestly, straight up, it’s a bit of a tough stretch. The first run of days is pretty average, with a lot of poor surf conditions and cross-onshore chop gumming things up. The water’s sitting at a temperature that’s about what you’d expect for this time of year, nothing wild to report there.

Thursday the 13th is a washout – messy wind, junk waves. You’re better off doing something else. Friday the 14th is smaller, with a 2ft swell from the SW, but the period is 15 seconds, so there’s some decent groundswell energy in there. Problem is, wind is cross or cross-on, so it’s not going to be clean. The combined energy is moderate at 243.

Saturday morning the 15th, you get a 3ft SW swell with a 17-second period – proper long-period groundswell. There’s a gentle breeze and it’s just cross-shore, so the chop is slight. The energy is moderate (449). It’s moving into marginal territory, not terrible but you’ll be working for it. That Sunday morning the 16th is also a bit of a tease: 3ft SW, 16-second period, light cross-shore wind, and clear skies. The waves will be clean but small and inconsistent. It’s a maybe.

The real standout in this whole outlook is Tuesday the 18th. Early morning sees a jump to 6ft from the NW, with only a 8-second period. The wind is light and cross-shore – that’s the big win. Combined energy is strong at 756. The swell is 6ft, so it's right at the upper end of intermediate territory, but for a confident surfer at Deadman's, with those light winds, it’ll be the pick of the bunch. It won't be perfect – that short period means it’ll be a bit crumbly – but it’ll be the most push you’ve had in a while.

Wednesday the 19th morning pushes up to 7ft from the NW, still short period (8 seconds). That’s getting into expert-only territory, and the wind stays light and cross-shore. The energy is very strong at 1047. If you’re good and you’ve got the right board, that could be a blast, but it’s on the bigger side.

After that, the trend tails off. The end of the second week, around the 26th and 27th, there’s another pulse of 5ft to 6ft NW swell with light cross-shore winds, but those are way off – we’re talking over a week away – so treat that as promising but not locked in. The Thursday the 27th morning looks like it could be another solid, clean session with 6ft and light wind, but again, it’s a long way out.

Crowds at Deadman's are often an issue, so if you’re heading out on the 18th or 19th, expect plenty of company. The swell direction matches what this spot likes – NW is the optimum – so that’s a plus.

Overall, if I had to point you at just one day, it’s Tuesday the 18th morning. That’s your best shot. The 19th morning if you want a bigger challenge. Everything else is waiting for better days.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 15°C on Thu morning, min 13°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Sun afternoon, min 12°C on Sat night). Wind will be generally light.

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
1
0
1
1
0
1
1
0
0
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
WNW
8
1.2
WNW
8
1.2
WNW
8
0.6
SW
15
0.6
SW
15
0.5
SW
18
0.6
SW
18
0.9
SW
17
0.5
SW
13
1
SW
16
0.9
SW
16
0.8
SW
16
0.9
SW
15
0.8
SW
15
0.8
SW
15
1.7
WNW
7
1.9
NW
8
1.9
WNW
8
2.3
WNW
8
Wave Graph
Metric surfscale
Energy kJ
188
176
181
149
136
164
252
410
88
502
362
287
309
255
255
279
461
476
670
Wind (km/h)
15
SW
25
SSW
30
SW
15
WSW
20
SW
25
WSW
15
W
15
WSW
20
WSW
10
WSW
10
SW
25
WSW
10
WSW
15
SW
25
WSW
15
WSW
10
SW
15
WSW
10
SW
Wind State
cross
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross
High Tide
11:08PM2.06m
12:43PM1.66m
11:58PM1.93m
1:17PM1.69m
00:49AM1.76m
1:50PM1.73m
1:41AM1.58m
2:23PM1.75m
2:38AM1.40m
2:58PM1.76m
3:45AM1.25m
3:35PM1.75m
Low Tide
5:48AM-0.30m
5:55PM0.54m
6:27AM-0.17m
6:45PM0.45m
7:05AM0.01m
7:38PM0.40m
7:42AM0.23m
8:33PM0.37m
8:21AM0.47m
9:31PM0.36m
9:05AM0.70m
10:35PM0.35m
part cloud
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part cloud
clear
part cloud
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clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:24
6:24
6:26
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:06
8:05
8:04
8:02
8:00
8:00
7:59
 mm
Temp °C
14
15
15
14
15
15
15
14
15
13
15
17
14
14
16
13
14
16
14
Feels °C
11
13
11
11
13
12
12
12
12
11
14
14
12
12
12
11
13
14
12
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Deadman's Surf forecast

The above surf forecast table for Deadman's provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Deadman's can be found by selecting the local surf guide option on the grey menu. Our Deadman's surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Deadman's) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Deadman's may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Deadman's is 6 km (4 miles) from the city of San Francisco. If you plan a vacation in Marin County, look for hotels and other accommodation in San Francisco. San Francisco has rooms for a wide range of budgets as well as car hire and transport links.

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