Deadman's Surf Break

Lat Long: 37.79° N 122.50° W

Deadman's Surf Forecast and Surf Report

Issued: 4 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Deadman's sea temperature is
18.6°C
4.0° 

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 Sep 2026:

  • Best quality surf: Monday 14 Sep, 2AM (local time) - 7ft (2.1m), 8s period, NW swell with glassy winds.
  • Most powerful swell: Monday 14 Sep, 11PM (local time) - 7ft (2.2m), 9s period, WNW swell with 725 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 2AM (local time) - 7ft (2.1m), 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 Monday (Sep 14) at 2AM. The primary swell is predicted to be 2.1m and 8s period with a secondary swell of 1.6m and 8s. Another secondary swell of 0.4m and 13s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Deadman's in the next 16 days are 2.2m 9s and forecast to arrive on Monday (Sep 14) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 13s period and expected on Monday (Sep 14) at 5PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 14th Sep)7ft (2.1m) 8s
Best Surf 2AM (Mon 14th Sep)7ft (2.1m) 8s
Most Powerful11PM (Mon 14th Sep)7ft (2.2m) 9s

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


The Lowdown

Yo, team. Rusty here. Let’s get into it for the next couple of weeks around here. We’ve got a bit of a mixed bag at Deadman’s—some serious potential, but a whole lot of mess to wade through first.

Right off the bat, things aren’t great. Sunday the 13th is a total write-off. Small 2ft SW swell on a 13-second period, but the wind is onshore from the WNW and the waves are just choppy garbage. Not worth a paddle.

We start seeing a shift early Monday the 14th. That morning, the wind goes glassy—totally off—and it’s clean with a 5ft swell from the WNW, period around 9 seconds. The wave energy is moderate but building (475 combined energy). This is the first real chance to get a few. It’s still a bit on the bigger side for beginners at that size, but for anyone with a bit of experience, it’s fun and clean. The water temp is 66°F, which is much warmer than normal for this time of year—like, way warmer by 7°—so you won’t need the thickest rubber.

Tuesday morning the 15th stays solid: 5ft WNW swell, 8-second period, with a light cross-offshore breeze from the SSW. The wave energy is still strong (378). It’s clean, shaped up nicely, and a good window for a session. Afternoons get choppy again with that cross-shore wind from the SW, so hit it early.

Wednesday morning the 16th hangs in there at 4ft WNW, still clean with a cross-off, but it’s only a 1/10 call—marginal. Might be worth a look if you’re keen, but it’s on the fence.

Then we hit a long, frustrating gap. From Thursday the 17th all the way through the 20th, it’s just small SW swell (2ft to 2ft) with onshore winds and choppy conditions. Nothing doing. Head high or chest high at best, and blown out.

Early in the second week, Monday the 21st has a bit of a pulse showing again: 3ft SW, 17-second period, but it’s still cross-shore and marginal. The combined energy is strong (503), but the wind isn’t friendly.

The real standout of the whole period is Tuesday morning the 22nd. We get a 4ft WNW swell, period 9 seconds, and a nice light cross-offshore breeze from the SSW. The wave energy is strong (465). That’s clean, well-shaped, and with that longer period groundswell, it’s going to hold up nicely on this beach-and-reef setup. It won’t be too big for most, and with clean conditions, it’s the best session in the forecast. If you can only pick one day, that’s it.

After that, we’re back into small choppy stuff through to the 25th, then another tiny bump early on Monday the 28th: 2ft WNW at 13 seconds, glassy, and clean. It’s small but glassy is glassy. Worth a paddle if you’re desperate.

All in all, there’s no huge swell here, but a few clean windows with decent waves. The standout is Tuesday morning the 22nd. Don’t bother with the weekends until the wind lays down.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun afternoon, min 14°C on Sun morning). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Thu afternoon, min 14°C on Wed morning). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
3
2
0
2
2
0
1
1
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
13
1.7
WNW
6
2.1
NW
8
1.5
WNW
9
1.5
WNW
9
2
WNW
9
1.4
WNW
8
1.2
WNW
8
1.3
WNW
9
1.2
WNW
9
1.1
WNW
8
1
WNW
8
0.5
SW
16
0.5
SW
16
0.4
SW
21
0.6
SW
19
0.6
SW
19
0.4
SW
19
0.6
SW
18
0.6
SW
18
0.6
SW
18
Wave Graph
Metric surfscale
Energy kJ
113
176
519
336
344
563
262
197
273
212
169
122
122
121
115
236
236
133
199
252
252
Wind (km/h)
15
WNW
30
WNW
0
WSW
5
WSW
25
W
10
SW
10
SSW
25
SW
20
SSW
20
SW
25
W
15
W
10
WSW
20
W
10
WSW
10
SW
20
W
15
WSW
15
WSW
25
W
25
WNW
Wind State
on
cross-on
glassy
glassy
cross-on
cross
cross-off
cross
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
12:55PM1.78m
1:38AM1.47m
1:25PM1.78m
2:35AM1.36m
1:57PM1.76m
3:43AM1.28m
2:35PM1.73m
5:17AM1.24m
3:21PM1.69m
7:13AM1.28m
4:17PM1.65m
8:21AM1.34m
5:22PM1.63m
Low Tide
7:09PM0.15m
7:05AM0.56m
7:55PM0.17m
7:42AM0.77m
8:45PM0.21m
8:26AM0.95m
9:42PM0.27m
9:28AM1.09m
10:49PM0.30m
10:58AM1.16m
11:59PM0.29m
12:19PM1.15m
1:02AM0.25m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:50
6:50
6:52
6:52
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:21
7:19
7:17
7:15
7:15
7:13
7:12
 mm
Temp °C
16
18
16
17
18
15
17
18
15
15
16
15
17
18
16
15
17
14
15
16
14
Feels °C
13
13
12
17
16
13
16
15
13
12
12
12
16
16
14
14
15
12
13
12
10
  • Map Icons:
  • Break
  • 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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