Deadman's Surf Break

Lat Long: 37.79° N 122.50° W

Deadman's Surf Forecast and Surf Report

Issued: 10 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Deadman's sea temperature is
18.1°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 10 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 2AM (local time) - 8ft (2.5m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 15 Sep, 2AM (local time) - 8ft (2.5m), 9s period, NW swell with 1,011 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 8AM (local time) - 2ft (0.6m), 14s 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 Sunday (Sep 13) at 8AM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.6m and 14s. Another secondary swell of 0.4m and 10s 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 2.5m 9s and forecast to arrive on Tuesday (Sep 15) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 11s period and expected on Thursday (Sep 10) at 2PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 13th Sep)2ft (0.6m) 14s
Best Surf 2AM (Tue 15th Sep)8ft (2.5m) 9s
Most Powerful 2AM (Tue 15th Sep)8ft (2.5m) 9s

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


The Lowdown

G’day, Rusty here. Let’s have a look at what’s coming up at Deadman’s.

Right off the bat, we’ve got a pretty lean run. The first half of this 16-day window is a bit of a write-off, with nothing worth paddling out for from Thursday the 10th through to Sunday the 13th. Winds are mostly cross or cross-on, and the swell is either small or messy. The combined energy readings are moderate at best — around 480 to 560 (moderate) — but it’s all blown out.

Things start to look up from Monday the 14th, but it’s still not clean. Monday morning sees a 6ft WNW groundswell with a 9-second period, and combined energy hitting 504 (moderate). The wind is a light cross-shore, so conditions are marginal. The swell’s solid enough for experienced surfers, but beginners will find it too big and bumpy.

Tuesday the 15th is the first real standout. Early morning at Deadman’s, we’ve got a clean 5ft WNW swell with an 8-second period. The wind is light and cross-off, so the surface is clean, and combined energy sits at 393 (moderate). This is your best bet in the first week — a solid, workable wave with good shape. The water temp is about average for this time of year, so no surprises there.

After that, the surf drops right back. Wednesday the 16th through Saturday the 19th is a long stretch of small, weak, and choppy conditions. Swell heights drop to 1ft to 2ft, and the combined energy falls below 300 (weak). Not worth the effort.

Then we hit the second week, and there’s some promise. Sunday the 20th morning is glassy with a 2ft SW swell and combined energy at 307 (moderate). The wind is calm and it’s dead flat clean. Monday the 21st morning is also glassy, with a 2ft SW swell and combined energy at 310 (moderate). These are light, clean days for a longboard or a funboard — the sort of morning where the sets are far apart because the period is long (17 seconds), so it’s easy to paddle out, but you’ll be waiting between waves.

Thursday the 24th morning brings a moderate offshore wind (SSE) and a 2ft SW swell with combined energy at 293 (weak). It’s clean again but small.

The only real standout for bigger surf in the second week is Friday the 25th morning. A risk of thunderstorms, but the wind is a moderate cross-off from the south, and the swell jumps to 7ft from the NW with an 8-second period. Combined energy is 1050 (strong). That’s a serious amount of energy for Deadman’s — this is for experts only, as anything over 8ft gets critical. The short period means it’ll be punchy and steep, not a long roller. Clean conditions though.

So, to sum it up: Tuesday the 15th morning is your first standout — clean and solid. And if you’re an experienced surfer who doesn’t mind a bit of size and a thunderstorm risk, Friday the 25th morning could be the biggest, most powerful session of the whole window.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Wed night, min 14°C on Thu night). Winds increasing (light winds from the SW on Wed night, fresh winds from the WNW by Sat afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Sun afternoon, min 13°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat night, calm by Sun night).

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
0
0
0
0
0
0
1
0
2
1
0
4
2
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)
0.7
SW
18
0.8
SW
17
0.8
SW
17
0.8
SW
16
0.9
SW
16
0.8
SW
16
1.6
WNW
7
0.7
SW
14
1.8
WNW
6
1.8
NW
6
1.5
NW
6
1.6
WNW
6
1.7
WNW
8
1.7
WNW
9
2.3
WNW
9
2.5
NW
9
1.4
WNW
8
1.2
WNW
8
1.2
WNW
8
Wave Graph
Metric surfscale
Energy kJ
300
346
403
352
411
339
236
203
262
245
172
196
412
426
756
1011
277
192
174
Wind (km/h)
10
SW
10
SW
20
WSW
15
WSW
20
WSW
25
WSW
20
W
20
W
30
WNW
25
NW
5
W
25
WNW
0
S
10
SW
25
W
10
S
5
SSW
20
WSW
15
SW
Wind State
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
glassy
cross
cross-on
cross-off
cross-off
cross
cross
High Tide
10:13PM1.92m
11:26AM1.70m
11:05PM1.83m
11:57AM1.74m
11:55PM1.72m
12:26PM1.77m
00:46AM1.59m
12:55PM1.78m
1:38AM1.47m
1:25PM1.78m
2:35AM1.36m
1:57PM1.76m
3:43AM1.28m
Low Tide
4:39AM-0.13m
4:55PM0.36m
5:17AM-0.01m
5:40PM0.25m
5:53AM0.15m
6:25PM0.18m
6:29AM0.35m
7:09PM0.15m
7:05AM0.56m
7:55PM0.17m
7:42AM0.77m
8:45PM0.21m
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:48
6:48
6:48
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:25
7:23
7:22
7:21
7:19
7:17
 mm
Temp °C
27
19
20
17
16
17
16
16
16
15
16
18
16
17
18
15
17
18
15
Feels °C
24
18
17
15
14
13
12
12
10
10
15
13
14
16
14
12
16
15
13
  • 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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