Surf Forecasts:
Deadman's surf forecast from 10 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 5AM (local time) - 4ft (1.2m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 2AM (local time) - 3.5ft (1.0m), 16s period, SW swell with 496 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 5AM (local time) - 4ft (1.2m), 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 Wednesday (Aug 12) at 5AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.6m and 18s. 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 Sunday (Aug 16) 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 0.7m 16s period and expected on Saturday (Aug 15) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 12th Aug) | 4ft (1.2m) 9s |
| Best Surf | 5AM (Wed 12th Aug) | 4ft (1.2m) 9s |
| Most Powerful | 2AM (Sun 16th Aug) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Deadman's over the next 16 days.
The Lowdown
Alright, Rusty here, let’s look at what we’ve got.
To be honest, this is a tough 16-day outlook. Deadman's is the only spot we’re looking at, and it’s not doing us any favors. There’s a long quiet spell right from the start. The first week is all but a washout – poor surf conditions, messy winds, and nothing worth paddling out for. The water’s at 64°F, which is much warmer than normal for this time of year (an anomaly of 6°F), but that’s cold comfort when the waves are junk.
From Monday the 10th through the end of that week, swell heights run around 4ft to 5ft from the WNW, with moderate energy (combined energy of all swells directed here between 310 and 435). But the wind’s a killer – mostly cross-shore in the 12 to 15 mph range, kicking up a nasty cross-chop. Wednesday the 12th morning and Thursday the 13th morning offer a little hope with a *cross-offshore* breeze, cleaning things up, but it’s still only "marginal" at best. With a short period of 9 seconds, the shape is lacking.
Into the second week, it gets even smaller. From Saturday the 15th, the swell drops under 3ft, bottoming out at 1ft by Tuesday the 18th. The wave energy is weak, down to 41. The one tiny bright spot is Tuesday morning the 25th – a full 15 days out – with a 2ft SW groundswell packing a very long 16-second period, light cross-shore winds, and clean conditions. The energy is moderate (306) and it’s labeled "marginal" but it’s the only glimmer in a lot of flat, choppy days.
Given the persistent onshore and cross-shore winds, small swell, and the beach-and-reef setup, this whole stretch looks better suited for kite surfing than paddle surfing.
This is just one of those dry spells. There’s no consistency here, and with the forecast looking this poor, it’s not unusual for the area. Forecasts can shift, but for now, there’s no standout session.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Tue afternoon, min 13°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri afternoon, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 9 | WNW 9 | SW 15 | SW 15 | SW 18 | SW 18 | SW 17 | SW 13 | SW 16 | SW 16 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 333 | 227 | 227 | 222 | 184 | 249 | 217 | 212 | 181 | 217 | 199 | 149 | 136 | 164 | 252 | 405 | 85 | 496 | 489 | 390 | 255 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross |
High Tide | 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 | 2:23PM1.75m | 2:38AM1.40m | |||||||
Low Tide | 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 | 7:42AM0.23m | 8:33PM0.37m | ||||||||
 | |  | |  | | | |  |  | | | | | | | | | | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 14 | 16 | 17 | 14 | 16 | 17 | 14 | 15 | 16 | 14 | 16 | 17 | 15 | 15 | 16 | 14 | 15 | 16 | 14 |
Feels °C | 12 | 12 | 11 | 13 | 14 | 11 | 14 | 13 | 10 | 12 | 12 | 11 | 15 | 15 | 13 | 13 | 13 | 11 | 13 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 |
| kJ | 333 | 227 | 227 | 222 | 184 | 232 | 217 | 212 | 181 | 217 | 199 | 146 | 105 | 81 | 57 | 405 | 268 | 496 | 489 | 390 | 255 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 18 | WNW 7 | WNW 7 | WNW 8 | W 10 | S 10 | SSW 11 |
| kJ | 102 | 92 | 87 | 88 | 100 | 249 | 108 | 130 | 161 | 157 | 153 | 149 | 136 | 103 | 252 | 29 | 38 | 35 | 50 | 8 | 44 |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SW 20 | SW 19 | SW 19 | SW 18 | SSW 12 | SSW 12 | SW 13 | SSW 11 | SSW 11 | SSW 11 | SW 20 | SW 20 | SW 18 | SW 14 | S 9 | SW 13 | W 10 | S 10 | W 13 | WNW 9 |
| kJ | 12 | 60 | 133 | 94 | 113 | 28 | 28 | 44 | 24 | 23 | 22 | 62 | 97 | 164 | 167 | 16 | 85 | 18 | 8 | 3 | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 3 | S 3 | — | — | — | — | — | — | — | — | W 10 | WNW 5 |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | 50 | 19 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 53 | 227 | 3 | 21 | 227 | 3 | 27 | 47 | 27 | 80 | 139 | 3 | 3 | 446 | 3 | 3 | 103 | 3 | 3 | 102 | 3 |
Best forecast wave conditions in Marin County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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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