
Surf Forecasts:
Deadman's surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 8AM (local time) - 4.5ft (1.3m), 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 502 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 8AM (local time) - 4.5ft (1.3m), 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 8AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.5m 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-onshore 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+) | 8AM (Wed 12th Aug) | 4.5ft (1.3m) 9s |
| Best Surf | 8AM (Wed 12th Aug) | 4.5ft (1.3m) 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 have a look at what's on the table for the next couple of weeks.
First up, the water is sitting at 64° – that's a solid 7° warmer than normal for this time of year, so you're looking at a pretty warm bath out there.
Honestly, the outlook is a bit of a struggle. We've got a long stretch of nothing much happening. From Tuesday the 11th right through to the end of the 16-day window, it's mostly poor surf conditions. The swell energy is moderate at best, with values like 300 to 538, but the wind is almost always cross or cross-on, keeping things choppy and messy. There's no standout session, no day where the stars align.
The only break on the menu is Deadman's, a beach and reef setup for advanced surfers. It's fairly consistent and exposed to the NW, but the swell is tiny and weak for most of the period. The best you'll get is a slight glimmer on Wednesday morning the 12th, with a clean cross-off breeze and a 4ft swell from the WNW with a short 8-second period. It's a marginal call, but it's the cleanest window we've got. The energy is moderate at 347, but the short period means the waves will be a bit weak and choppy.
The rest is just a grind. Swell builds slightly around the 16th and 17th with a long-period groundswell from the SW (15-16 seconds), but the wind is cross-on, ruining any chance of quality. A long-period swell like that would be better suited to a point or reef, but at Deadman's it's just going to close out. The energy is there – 538 on the 16th morning – but the wind kills it.
For the 23rd and beyond, we see a long-period swell from the SW (19 seconds) with very light wind on the 23rd morning, but the swell height is only 1ft. It's too small to do anything with. The 26th morning looks clean again with a cross-off breeze and a 1ft swell from the SW at 19 seconds, but again, it's marginal.
In short, there's no real gem here. The best you can hope for is a clean, small wave on Wednesday morning the 12th or maybe a look at the 26th, but don't get your hopes up. This is a pretty blank run for the area, and it's more normal to have these quiet spells. With the small swell and strong cross-onshore winds, this setup looks more interesting for kite surfing than paddle surfing.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 13°C on Tue morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Sun afternoon, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 8 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | SW 15 | SW 15 | SW 18 | SW 18 | SW 17 | SW 13 | SW 16 | SW 16 | SW 15 | SW 14 | SW 12 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
212 | 180 | 333 | 239 | 245 | 172 | 211 | 221 | 149 | 136 | 164 | 252 | 410 | 87 | 502 | 489 | 385 | 346 | 181 | 251 | 167 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on |
High Tide | 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 | 2:58PM1.76m | 3:45AM1.25m | |||||||
Low Tide | 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 | 8:21AM0.47m | 9:31PM0.36m | ||||||||
6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | |
— | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 14 | 16 | 17 | 14 | 15 | 15 | 14 | 15 | 15 | 14 | 15 | 15 | 13 | 14 | 16 | 14 | 14 | 16 | 15 |
Feels °C | 12 | 12 | 11 | 14 | 14 | 11 | 12 | 11 | 11 | 13 | 12 | 11 | 13 | 12 | 10 | 13 | 13 | 12 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 12 | SW 14 | SW 14 |
212 | 180 | 333 | 239 | 245 | 172 | 211 | 221 | 131 | 128 | 76 | 51 | 410 | 268 | 502 | 489 | 385 | 346 | 181 | 251 | 167 | |
Swell 2 Height (m) Direction Period (s) | 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 6 | SW 13 | W 10 | WNW 5 | S 10 | W 9 | SW 15 | W 9 | SW 11 |
88 | 100 | 249 | 108 | 130 | 161 | 157 | 153 | 149 | 136 | 132 | 252 | 33 | 87 | 18 | 16 | 8 | 44 | 174 | 40 | 73 | |
Swell 3 Height (m) Direction Period (s) | 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 | W 10 | S 8 | WNW 10 | S 10 | S 9 | W 9 | SW 11 | WNW 9 |
94 | 113 | 28 | 28 | 44 | 24 | 23 | 22 | 62 | 97 | 164 | 130 | 6 | 19 | 5 | 33 | 19 | 7 | 40 | 42 | 26 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 6 | WNW 6 | — | WNW 10 | NW 5 | — | NW 5 | WNW 5 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 31 | 34 | — | 74 | 11 | — | 4 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 102 | 47 | 53 | 47 | 27 | 53 | 102 | 80 | 3 | 47 | 21 | 3 | 103 | 21 | 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.











