Surf Forecasts:
Deadman's surf forecast from 26 Aug 2026:
- Best quality surf: Sunday 30 Aug, 8AM (local time) - 3.5ft (1.0m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 8AM (local time) - 3.5ft (1.0m), 18s period, SW swell with 607 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 8AM (local time) - 4ft (1.2m), 6s 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 Thursday (Aug 27) at 8AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.4m and 15s. 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 1.0m 18s and forecast to arrive on Saturday (Aug 29) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 13s period and expected on Tuesday (Sep 01) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 27th Aug) | 4ft (1.2m) 6s |
| Best Surf | 8AM (Sun 30th Aug) | 3.5ft (1.0m) 16s |
| 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
G'day, I'm Rusty. Let's get straight into it. For the next 16 days at Deadman's, it's a bit of a mixed bag. We've got some decent long-period SW groundswells trying to push through, but the wind is a pain in the arse for most of the run. The water is sitting at 65°, which is a whopping 7° warmer than normal for this time of year – that's a wild anomaly, you'll be in boardies or a spring suit for sure.
The first sniff of something worthwhile doesn't come until Sunday the 30th of August. There's a solid SW groundswell with a 16-second period and moderate wave energy (1125), but the real story is the morning. At Deadman's, we get a light cross-offshore breeze from the SSW at 6 mph, keeping things clean. The swell is around 3 feet, and while it's a long period, this spot is a beach and reef setup, so it might not be the most perfect shape. It's a standout for being the cleanest the place will see for a while, but it's an advanced wave, so don't expect a beginner-friendly session.
The crowds here are often an issue, so expect some company on that Sunday morning. The rest of that day turns to shit in the afternoon, with the wind swinging onshore.
Monday the 31st morning has a clean look with a cross-offshore breeze, but the swell is short-period (8 seconds) and the energy is weak (228) – it’s a flat, windy mess after that. The whole first week of September is a write-off; we're talking a solid 5-day gap of poor surf from the 31st of August through to the 4th of September, with onshore winds and choppy conditions making it a no-go.
The next real glimmer is on Saturday the 5th of September. The morning is looking glassy – a NNE breeze at 3 mph, basically dead calm. The swell is 3 feet from the SW with a 16-second period, and the energy is moderate (422). It's a good window, but it's the morning only. By the afternoon, the wind swings onshore again. The same story repeats on Sunday the 6th of September morning – another glassy session, similar 3 feet SW groundswell. These are the best two mornings of the run, but they are fleeting.
After that, we get a rough patch again. Monday the 7th and Tuesday the 8th look messy. Tuesday the 8th morning actually has a bit of size – 7 feet from the WNW with a short 9-second period – but it's cross-on and lumpy. That's expert territory, and the wind is going to make it a battle. The combined energy is strong (792), but the quality is poor. For a beach and reef setup, that's more kite-surfing conditions than paddle surfing.
The final days, the 9th and 10th of September, show a slow drop in size with cross-shore winds, but nothing that screams "go." It's a tough outlook. The window is really just those Sunday and Monday mornings, and even then, it's a long-period groundswell at a beach break, so don't expect perfection.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 13°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Sun afternoon, min 13°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | SW 16 | SW 16 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | SW 17 | WNW 7 | WNW 7 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
159 | 155 | 170 | 136 | 247 | 263 | 287 | 163 | 310 | 600 | 410 | 508 | 489 | 314 | 277 | 212 | 125 | 68 | 51 | 50 | 80 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 11:31AM1.48m | 10:18PM1.82m | 11:53AM1.52m | 10:59PM1.78m | 12:15PM1.57m | 11:41PM1.71m | 12:40PM1.64m | 00:26AM1.62m | 1:08PM1.71m | 1:15AM1.52m | 1:39PM1.79m | 2:12AM1.41m | 2:14PM1.85m | 3:19AM1.31m | |||||||
Low Tide | 4:29PM0.75m | 5:02AM-0.07m | 5:05PM0.65m | 5:30AM-0.02m | 5:41PM0.54m | 5:58AM0.07m | 6:19PM0.44m | 6:27AM0.20m | 7:01PM0.34m | 6:58AM0.38m | 7:48PM0.27m | 7:32AM0.58m | 8:43PM0.21m | ||||||||
6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | |
— | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — | — | 7:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 19 | 18 | 17 | 20 | 18 | 16 | 16 | 14 | 15 | 15 | 14 | 15 | 16 | 14 | 15 | 15 | 15 | 15 | 17 | 16 |
Feels °C | 16 | 16 | 16 | 16 | 17 | 16 | 15 | 13 | 11 | 12 | 10 | 9 | 14 | 14 | 11 | 11 | 11 | 12 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 5 | S 14 | S 12 | S 12 | S 11 | SW 14 | SW 17 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | SW 14 | SSW 13 | WNW 7 | SSW 13 | SSW 12 |
25 | 144 | 110 | 70 | 62 | 128 | 287 | 380 | 252 | 600 | 410 | 502 | 220 | 155 | 277 | 212 | 211 | 156 | 51 | 183 | 53 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | S 12 | S 11 | S 10 | SW 14 | S 9 | S 9 | S 9 | SW 16 | SW 15 | SW 14 | SW 14 | SW 19 | W 9 | SSW 13 | SW 18 | SW 18 |
159 | 155 | 78 | 75 | 74 | 67 | 37 | 32 | 71 | 15 | 6 | 6 | 489 | 314 | 251 | 211 | 15 | 7 | 114 | 50 | 80 | |
Swell 3 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 12 | SW 18 | SW 18 | W 10 | W 11 | W 10 | S 10 | — | — | S 9 | S 9 | S 9 | S 9 | SW 20 | SW 19 | WSW 19 | S 12 | W 10 | SW 13 |
58 | 34 | 48 | 52 | 119 | 32 | 20 | 28 | 16 | — | — | 1 | 2 | 2 | 2 | 16 | 15 | 36 | 46 | 8 | 46 | |
Wind waves Height (m) Direction Period (s) | — | WNW 6 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | NW 8 | — | — | — | WNW 7 | WNW 7 | — | WNW 6 | WNW 5 |
— | 84 | 170 | 136 | 247 | 263 | 172 | 163 | 310 | 220 | 279 | 508 | 416 | — | — | — | 125 | 68 | — | 26 | 29 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 101 | 3 | 3 | 101 | 88 | 3 | 101 | 74 | 102 | 467 | 101 | 3 | 102 | 47 | 415 | 102 | 74 | 21 | 101 | 71 |
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.











