Deadman's Surf Break

Lat Long: 37.79° N 122.50° W

Deadman's Surf Forecast and Surf Report

Issued: 4 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Deadman's sea temperature is
18.0° C
3.8° 

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 9 Aug 2026:

  • Best quality surf: Monday 10 Aug, 8AM (local time) - 5.5ft (1.7m), 9s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 2AM (local time) - 6ft (1.9m), 9s period, WNW swell with 586 kJ wave energy.
  • Next surfable swell (1★+): Monday 10 Aug, 8AM (local time) - 5.5ft (1.7m), 9s period with WNW 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 (Aug 10) at 8AM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.5m and 14s. 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 1.9m 9s and forecast to arrive on Monday (Aug 10) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 16s period and expected on Saturday (Aug 15) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 10th Aug)5.5ft (1.7m) 9s
Best Surf 8AM (Mon 10th Aug)5.5ft (1.7m) 9s
Most Powerful 2AM (Mon 10th Aug)6ft (1.9m) 9s

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


The Lowdown

Alright, let’s get real about the next couple of weeks. It’s a bit of a mixed bag out there, so let’s break it down day by day.

We’re looking at a period that starts with some pretty average conditions. The energy is moderate, but the wind is going to be a constant issue, mostly cross-shore, which messes up the surface. The water temp is sitting at 64.4°F, and that’s a solid 6.8°F warmer than normal for this time of year. That’s a weird one, for sure – water’s feeling more like a bathtub than the usual late-winter chill.

First up, the early part of the week. Sunday morning has a little bit of swell, around 4.3ft from the WNW, but the light cross-shore wind and the general vibe are just marginal. It’s not a complete write-off, but it’s not going to be pretty. The energy is weak at 354. By the afternoon, the wind picks up and it turns into a cross-chop mess. Not worth paddling out for.

Monday and Tuesday follow a similar pattern. Swell stays around the 3.9ft to 4.9ft mark, but the wind is constantly cross-shore, and the wave comment just says “poor surf conditions” across the board. It’s a frustrating stretch because there’s waves, but they’re going to be lumpy and hard to ride. The energy is moderate, but it’s not translating into any quality.

Wednesday is more of the same, with a bit more wind in the afternoon. The swell is dropping a touch, but the cross-shore wind is just making it ugly. We’re looking at a few days of this, and it’s not until Thursday morning that things start to shift.

Thursday morning, we get a cleaner look. The wind is cross-offshore, light, and the surface is clean. The swell is a bit smaller, around 3.6ft from the WNW, but the period has dropped to 8 seconds, which is a bit short and junky. It’s a marginal call, but at least the surface is clean. There’s a window there, but it’s not exactly pumping.

Friday morning is the first real standout of the period. The swell drops to 2ft, but the period jumps to 15 seconds, which is a proper groundswell. The wind is light and cross-offshore, and the surface is clean. It’s small, make no mistake, but it’s going to be glassy and lined up. This is a long-period swell, so it will be best at a point or reef break. Deadman's is a beach and reef setup, so there might be some good ones on the reef. The energy is weak at 238, but the quality will be there. This is a good morning for a longboard or a fish.

The weekend sees the long-period swell start to fade, but there’s still some energy around. Saturday morning has a light cross-shore and a 17-second period, but the swell is only 3ft. It’s surfable, but the tide might be a factor. By Sunday morning, the wind drops to almost nothing, and the swell is 2.6ft with a 16-second period. The energy is up to 551, which is moderate, but it’s still small. It’s another clean morning, but you’re going to be scratching for waves.

The following week is a bit of a mixed bag. Monday morning has a similar look, but the swell is starting to get smaller. The real problem is the wind swings cross-on, which makes things choppy. The energy is still moderate, but the quality is dropping off.

From Tuesday onwards, it’s mostly small and poor. The swell drops right off, and the conditions are nothing to write home about. There’s a brief pulse on the 20th with a 5.2ft WNW swell, but the period is a short 6 seconds, and the wind is cross-shore. Not great.

The last few days of the period, from the 21st to the 24th, see a bit more size arrive. It’s mostly in the 3.6ft to 6.2ft range, but the period is short, around 6-8 seconds, and the wind is still cross. The energy is moderate, but the waves are going to be messy and sectiony. There will be a lot of whitewater and not a lot of clean faces. This is more of a challenge than a pleasure.

The standout day is Friday, August 14th. It’s small, but it’s clean, and the long-period swell will make the most of the reef. The Thursday morning before that is also a window, but it’s not as clean. There’s also a morning on the 16th that looks like it could be okay, with light winds and a clean surface, but the swell is small.

For the most part, the second week is not looking great. The swell is either too small, too short-period, or the wind ruins it. The last few days of the window have more size, but the quality is poor. It’s a lot of effort for not much reward.

If you’re a beginner, the

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Wed morning). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the SSE by Fri morning).

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
0
0
1
0
0
1
0
0
1
1
0
2
1
0
1
1
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)
1.3
WNW
10
1.3
WNW
10
1.9
WNW
9
1.5
WNW
9
1.3
WNW
9
1.2
WNW
9
1.2
WNW
10
1.1
WNW
9
1.2
WNW
9
1.2
WNW
9
1.1
WNW
8
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.6
SW
15
0.5
SW
18
0.6
SW
18
0.9
SW
17
0.8
SW
16
0.5
W
10
Wave Graph
Metric surfscale
Energy kJ
332
325
586
385
262
232
264
188
249
217
160
184
160
153
149
174
164
252
410
314
51
Wind (km/h)
10
SW
20
WSW
15
SW
20
SW
25
WSW
15
SW
15
SW
25
SW
20
SSW
20
SW
30
SW
20
SSW
20
SSW
25
SW
10
SSW
10
SSW
20
WSW
10
SW
10
SW
20
WSW
10
WSW
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross
cross
cross
High Tide
10:13AM1.43m
8:22PM2.13m
10:55AM1.51m
9:20PM2.16m
11:33AM1.56m
10:15PM2.14m
12:09PM1.61m
11:08PM2.06m
12:43PM1.66m
11:58PM1.93m
1:17PM1.69m
00:49AM1.76m
1:50PM1.73m
1:41AM1.58m
Low Tide
2:19PM1.01m
3:35AM-0.31m
3:18PM0.91m
4:22AM-0.37m
4:12PM0.78m
5:07AM-0.37m
5:04PM0.65m
5:48AM-0.30m
5:55PM0.54m
6:27AM-0.17m
6:45PM0.45m
7:05AM0.01m
7:38PM0.40m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:20
6:20
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:08
8:07
8:06
8:05
8:04
8:02
 mm
Temp °C
17
19
14
15
16
14
16
17
14
16
17
15
16
17
16
17
18
16
17
18
16
Feels °C
16
17
11
12
12
11
14
13
11
13
13
11
13
13
15
16
15
14
16
15
14
  • 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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