Deadman's Surf Break

Lat Long: 37.79° N 122.50° W

Deadman's Surf Forecast and Surf Report

Issued: 4 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Deadman's sea temperature is
17.0°C
2.4° 

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 2 Sep 2026:

  • Best quality surf: Friday 4 Sep, 8AM (local time) - 2.5ft (0.8m), 18s period, SW swell with glassy winds.
  • Most powerful swell: Friday 4 Sep, 8PM (local time) - 3.5ft (1.0m), 16s period, SW swell with 527 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 2AM (local time) - 1.5ft (0.4m), 18s period with SW 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 (Sep 02) at 2AM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.4m and 10s is also forecast. Another secondary swell of 0.3m and 4s 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 1.0m 16s and forecast to arrive on Friday (Sep 04) 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 1.1m 16s period and expected on Friday (Sep 04) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 2nd Sep)1.5ft (0.4m) 18s
Best Surf 8AM (Fri 4th Sep)2.5ft (0.8m) 18s
Most Powerful 8PM (Fri 4th Sep)3.5ft (1.0m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what Deadman's has got cooking for us over the next couple of weeks. It’s a bit of a mixed bag, but there is a real beauty of a window if you time it right.

For starters, the water is sitting at 63°, which is a good 4° warmer than what we usually see this time of year. That’s pretty unusual, so you can ditch the thickest rubber for a while.

The first couple of days, Tuesday and Wednesday, are pretty average. Small SW groundswell coming through with 1ft waves, a long period around 16 to 19 seconds. The wind is a mix of cross and cross-off, so it’s clean enough for a paddle, but the energy is weak (77 to 132) and the waves are just too small to get excited about. Nothing worth rushing for there. Thursday is a bit bigger with 4ft from the WNW, but the period drops to 10 seconds and the wind goes chunky cross, making it messy. The energy jumps to 383 (moderate) but the conditions are still marginal.

Now, let’s talk about the standout. Friday morning, the 4th of September, is the pick of the entire forecast. The swell is 3ft from the SW, running on a long 18-second pulse, giving the waves some real shape and push. The combined energy is pumping at 786, which is solid moderate energy. But the best part? It’s glassy. The wind is a slight air from the WSW at just 3 mph. That doesn't happen often here. For an advanced break like Deadman's, you’ll get clean, lined-up sets. Get out there early because that afternoon the wind swings onshore and turns it to chop.

After that, things get quiet again. From Saturday the 5th through to Wednesday the 9th, we’ve got a big gap of poor to marginal conditions. Swells are small, mostly under 3ft, with short, weak energy under 145, and a lot of cross-onshore wind making it choppy. Not worth the effort.

There’s a glimmer on Wednesday the 9th morning, with another glassy window. There’s a 1ft swell from the SW at 19 seconds. The energy is moderate at 213, and it’s clean, but the waves are tiny. Could be a fun longboard session if you’re desperate.

Then from the 10th through to the 16th, it’s a long run of poor to marginal surf. The swell stays small (2ft to 3ft), winds are mostly cross or cross-on, and the energy fluctuates but never gets into that sweet spot. There are no real standouts in the second half of the forecast. It’s a typical end-of-run stretch for this area. Keep an eye on Friday the 11th morning, where it’s clean but small.

So the simple takeaway: Friday morning, September 4th, is your day. Glassy conditions and a solid groundswell at Deadman's. Make the most of it.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Very mild (max 18°C on Tue afternoon, min 12°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Fri afternoon, min 13°C on Sat night). Wind will be generally light.

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
0
0
1
1
1
3
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SW
18
0.4
SW
18
0.4
SW
16
0.5
SW
13
0.6
SW
17
0.5
SW
19
1.2
WNW
10
0.8
SW
18
0.9
SW
18
0.9
SW
17
1.1
WNW
10
0.9
WNW
10
0.8
WNW
9
0.7
WNW
9
0.8
WNW
9
0.8
WNW
9
0.6
SW
14
0.6
SW
14
0.8
WNW
6
1.1
WNW
7
Wave Graph
Metric surfscale
Energy kJ
50
111
96
78
173
179
271
379
449
465
232
145
96
73
99
99
162
162
43
110
Wind (km/h)
20
WSW
10
SSW
15
SSW
20
WSW
10
SW
20
SSW
15
WSW
10
WNW
5
WSW
25
W
10
WSW
15
WSW
20
W
10
WSW
10
WSW
25
WNW
10
W
10
W
25
WNW
5
SSE
Wind State
cross
cross-off
cross-off
cross
cross
cross-off
cross
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
glassy
High Tide
2:14PM1.85m
3:19AM1.31m
2:56PM1.89m
4:47AM1.25m
3:48PM1.91m
6:35AM1.26m
4:50PM1.93m
8:05AM1.34m
6:00PM1.94m
9:01AM1.44m
7:10PM1.97m
9:43AM1.52m
8:17PM1.98m
Low Tide
8:43PM0.21m
8:11AM0.78m
9:47PM0.17m
9:03AM0.96m
11:01PM0.12m
10:24AM1.09m
00:17AM0.05m
12:01PM1.11m
1:25AM-0.05m
1:20PM1.03m
2:24AM-0.13m
2:23PM0.87m
3:14AM-0.19m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:41
6:41
6:43
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:38
7:37
7:36
7:35
7:32
7:31
7:30
 mm
1
Temp °C
18
17
18
18
16
17
17
16
14
17
15
16
17
15
15
17
15
16
18
16
Feels °C
15
14
16
16
14
15
16
14
13
13
12
14
14
12
14
12
12
14
13
15
  • 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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