Deadman's Surf Break

Lat Long: 37.79° N 122.50° W

Deadman's Surf Forecast and Surf Report

Issued: 10 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Deadman's sea temperature is
17.9°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 23 Aug 2026:

  • Most powerful swell: Saturday 29 Aug, 8AM (local time) - 3.5ft (1.0m), 18s period, SW swell with 607 kJ wave energy.

Best Forecast Surf Conditions for Deadman's this week:

The most powerful waves expected at Deadman's in the next 16 days are 1.0m 18s and forecast to arrive on Saturday (Aug 29) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 18s period and expected on Saturday (Aug 29) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Sat 29th Aug)3.5ft (1.0m) 18s

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’s on offer for Deadman’s. This is a pretty advanced, fairly consistent spot that can handle a good NW swell, but it’s been a bit of a mixed bag.

The water temperature is sitting at 64°, which is a whopping 6° warmer than usual for this time of year. That’s seriously unusual, so don’t expect a winter wetsuit – you’ll be cooking out there.

The week kicks off with a bit of a frustrating start. On Sunday the 23rd, the morning starts glassy with a tiny 1ft SW swell at a very long 19 seconds, but the combined energy is weak (234). It’s surfable, but very ordinary. The rest of the day and the next few days just get worse with onshore winds and chop. Monday, Tuesday, and Wednesday mornings all have a slight cross-shore wind, but the swell is tiny and the conditions are poor. Wednesday afternoon sees a jump in size to 5ft, but it’s a short-period 6-second windswell and the wind is cross-onshore, making it a messy write-off.

The best chance for a clean session in the first week is Thursday morning the 27th. The wind is a gentle cross-shore, the swell is a clean 4ft from the WNW with a period of 6 seconds, though the energy is moderate (248). The conditions are still only marginal, but it’s the best of a bad bunch.

Now, if you can hold out, Sunday morning the 30th of August is the absolute standout. The wind drops to glassy, and we get a solid 7ft NW swell with a period of 8 seconds. The combined energy is a powerful 1340, making for strong, punchy waves. This is excellent for experienced surfers only – it’s big, powerful, and clean. The afternoon will get chopped up by a cross-onshore wind, so get your sessions in early. The crowds here are often, so expect a few others with the same idea.

The following week is a bit of a letdown. The first week of September sees a return to smaller, poor conditions with cross-onshore winds. The only real exception is Wednesday morning the 2nd of September. The wind is glassy, but the swell is a tiny 1ft from the SW with a very long 17-second period, and the energy is weak (152). It’s surfable but very ordinary. The weekend of the 5th and 6th is a write-off with strong onshore winds and lumpy, choppy conditions.

The final day of the forecast, Monday morning the 7th of September, offers a last gasp. The wind is flat calm, glassy, and a 4ft WNW swell with a 10-second period rolls in. The energy is moderate (244). It’s a clean, surfable wave, but nothing to get too excited about.

So, the standout is the morning of the 30th of August. Get it while it’s clean. For the rest, you’ll be scratching your head.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun afternoon, min 13°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Wed afternoon, min 13°C on Fri night). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
2
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)
1.1
WNW
7
1
WNW
8
0.4
SW
18
0.5
SW
18
0.4
SW
17
0.5
SW
17
0.6
SW
16
0.5
SW
16
0.5
SW
16
0.6
SW
16
0.5
SW
16
1.6
WNW
6
1.2
WNW
6
1.5
WNW
6
1.7
WNW
7
0.6
SW
17
0.6
SW
19
1.7
WNW
7
1
SW
18
0.8
SW
17
0.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
130
116
113
157
107
145
219
130
124
159
131
203
117
181
310
235
299
310
600
342
371
Wind (km/h)
10
SW
15
WSW
15
SW
10
WSW
20
WSW
10
W
10
WSW
15
W
10
WSW
10
WSW
20
W
10
W
10
WSW
20
W
10
W
10
WSW
20
W
10
WSW
10
WSW
25
W
10
WSW
Wind State
cross
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
High Tide
10:17AM1.41m
8:01PM1.80m
10:45AM1.43m
8:50PM1.83m
11:09AM1.45m
9:35PM1.83m
11:31AM1.48m
10:18PM1.82m
11:53AM1.52m
10:59PM1.78m
12:15PM1.57m
11:41PM1.71m
12:40PM1.64m
00:26AM1.62m
Low Tide
2:30PM1.03m
3:21AM0.05m
3:14PM0.95m
3:58AM-0.02m
3:53PM0.85m
4:32AM-0.06m
4:29PM0.75m
5:02AM-0.07m
5:05PM0.65m
5:30AM-0.02m
5:41PM0.54m
5:58AM0.07m
6:19PM0.44m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
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>
6:31
6:31
6:33
6:33
6:35
6:35
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:51
7:49
7:47
7:46
7:45
7:44
 mm
Temp °C
16
18
15
16
17
15
16
18
16
16
19
17
17
19
16
15
18
15
15
18
16
Feels °C
15
16
13
15
14
13
15
15
14
15
16
15
17
16
14
13
14
12
13
14
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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