Surf Forecasts:
Deadman's surf forecast from 25 Aug 2026:
- Best quality surf: Thursday 27 Aug, 5AM (local time) - 4.5ft (1.3m), 6s period, WNW swell with glassy 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, 5AM (local time) - 4.5ft (1.3m), 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 5AM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.5m 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-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 14s period and expected on Monday (Aug 31) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 27th Aug) | 4.5ft (1.3m) 6s |
| Best Surf | 5AM (Thu 27th Aug) | 4.5ft (1.3m) 6s |
| 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 get into it.
First up, the water temperature is sitting at 64°F right now, which is a whopping 6°F warmer than usual for this time of year. That’s very unusual, and it’s a big talking point for Deadman’s. The ocean feels like a bath out there.
Honestly, the outlook over the next 16 days is a tough one. We’re looking at a long stretch of poor conditions with only a few glimmers of hope. The first recommendation doesn’t come until Thursday morning, the 3rd of September. Before that, we have a solid gap of over a week with nothing but onshore junk, short-period windswell, and generally messy conditions. The combined swell energy is weak for most of that time, and when it does pick up, the wind is just wrong.
The standout, and really the only window worth getting excited about, is Thursday morning, the 3rd of September. Deadman’s will see a 2ft swell from the SW with a very long period of 19 seconds. That’s proper groundswell. The wind is a light cross-offshore from the SW at 3 mph, which will leave the surface clean. The combined energy comes in at a moderate 361, and the wave comment says “expect good surf conditions.” This is a rarity in this forecast. That long period will wrap into Deadman’s nicely, but remember, it’s a beach and reef setup, so the sets might be a bit straight at the beach, but the reef should line them up. It’s an advanced break, so don’t expect a learner’s wave. Crowds are likely here, so get in early.
After that, it’s back to marginal conditions. Friday morning the 4th has a slight chance with a 3ft SW swell (18 seconds) and light cross-shore wind, but it’s a “marginal” call. The combined energy is moderate (609), but the wind is more cross than offshore, so it won’t be as clean. Saturday the 5th morning is similar, but again, it’s a gamble.
For the rest of the second week, the surf is small and the wind is mostly cross to cross-on. There’s a glassy morning on the 2nd of September with a tiny 1ft swell, but it’s a zero on the score for surf quality, so that’s a flat calm more than a surfable wave. The best advice is to keep an eye on the Thursday morning window, and after that, the forecasts can change, but right now, it’s a waiting game.
Rusty out.
Short Range ForecastMostly dry. Warm (max 21°C on Thu afternoon, min 13°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri afternoon, min 13°C on Fri night). Winds increasing (light winds from the WSW on Fri morning, fresh winds from the W by Sun afternoon). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 | SW 16 | SW 16 | SW 16 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | SW 17 | WNW 7 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | WNW 7 | WNW 5 | SW 19 |
Wave Graph | |||||||||||||||||||||
219 | 130 | 124 | 159 | 155 | 175 | 97 | 239 | 263 | 287 | 107 | 375 | 600 | 410 | 502 | 483 | 314 | 343 | 175 | 74 | 58 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 1:08PM1.71m | 1:15AM1.52m | 1:39PM1.79m | 2:12AM1.41m | |||||||
Low Tide | 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 | 6:27AM0.20m | 7:01PM0.34m | 6:58AM0.38m | 7:48PM0.27m | ||||||||
6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | |
— | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 18 | 16 | 17 | 20 | 18 | 18 | 21 | 18 | 15 | 17 | 15 | 15 | 16 | 14 | 14 | 15 | 14 | 15 | 16 | 15 |
Feels °C | 13 | 16 | 14 | 16 | 17 | 16 | 17 | 18 | 16 | 14 | 15 | 13 | 13 | 13 | 11 | 11 | 11 | 9 | 11 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | WNW 5 | S 14 | S 12 | S 12 | S 11 | SW 14 | WNW 7 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 14 | SSW 13 |
219 | 130 | 124 | 26 | 142 | 110 | 70 | 61 | 130 | 136 | 380 | 375 | 600 | 410 | 502 | 483 | 314 | 305 | 264 | 206 | 154 | |
Swell 2 Height (m) Direction Period (s) | WNW 7 | SSW 13 | SSW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | S 12 | SW 17 | S 10 | S 9 | S 9 | S 8 | S 9 | S 9 | S 9 | S 9 | SW 20 | SW 19 | W 9 |
30 | 68 | 55 | 159 | 155 | 109 | 75 | 74 | 69 | 287 | 32 | 28 | 15 | 6 | 6 | 2 | 2 | 2 | 15 | 15 | 7 | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | W 16 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | SW 18 | SW 18 | W 10 | S 11 | W 10 | W 10 | S 9 | — | W 12 | S 15 | SW 21 | SW 21 | — | W 10 | SW 19 |
68 | 20 | 41 | 58 | 34 | 48 | 83 | 119 | 31 | 61 | 18 | 16 | 6 | — | 3 | 4 | 17 | 18 | — | 17 | 58 | |
Wind waves Height (m) Direction Period (s) | — | WNW 4 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | NW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 5 | WNW 5 |
— | 12 | 49 | 53 | 80 | 175 | 97 | 239 | 263 | 194 | 107 | 186 | 132 | 191 | 256 | 181 | 235 | 343 | 175 | 74 | 35 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 101 | 3 | 3 | 101 | 93 | 3 | 101 | 101 | 3 | 102 | 3 | 3 | 101 | 74 | 3 | 101 | 94 | 102 | 103 | 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.











