Surf Forecasts:
Deadman's surf forecast from 23 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 8AM (local time) - 3.5ft (1.0m), 18s period, SW swell with 607 kJ wave energy.
Best Forecast Surf Conditions for Deadman's this week:
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 0.7m 18s period and expected on Saturday (Aug 29) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| 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 have a look at what’s on offer for Deadman’s. This is a pretty advanced, fairly consistent spot that can handle a good NW swell, but it’s been a bit of a mixed bag.
The water temperature is sitting at 64°, which is a whopping 6° warmer than usual for this time of year. That’s seriously unusual, so don’t expect a winter wetsuit – you’ll be cooking out there.
The week kicks off with a bit of a frustrating start. On Sunday the 23rd, the morning starts glassy with a tiny 1ft SW swell at a very long 19 seconds, but the combined energy is weak (234). It’s surfable, but very ordinary. The rest of the day and the next few days just get worse with onshore winds and chop. Monday, Tuesday, and Wednesday mornings all have a slight cross-shore wind, but the swell is tiny and the conditions are poor. Wednesday afternoon sees a jump in size to 5ft, but it’s a short-period 6-second windswell and the wind is cross-onshore, making it a messy write-off.
The best chance for a clean session in the first week is Thursday morning the 27th. The wind is a gentle cross-shore, the swell is a clean 4ft from the WNW with a period of 6 seconds, though the energy is moderate (248). The conditions are still only marginal, but it’s the best of a bad bunch.
Now, if you can hold out, Sunday morning the 30th of August is the absolute standout. The wind drops to glassy, and we get a solid 7ft NW swell with a period of 8 seconds. The combined energy is a powerful 1340, making for strong, punchy waves. This is excellent for experienced surfers only – it’s big, powerful, and clean. The afternoon will get chopped up by a cross-onshore wind, so get your sessions in early. The crowds here are often, so expect a few others with the same idea.
The following week is a bit of a letdown. The first week of September sees a return to smaller, poor conditions with cross-onshore winds. The only real exception is Wednesday morning the 2nd of September. The wind is glassy, but the swell is a tiny 1ft from the SW with a very long 17-second period, and the energy is weak (152). It’s surfable but very ordinary. The weekend of the 5th and 6th is a write-off with strong onshore winds and lumpy, choppy conditions.
The final day of the forecast, Monday morning the 7th of September, offers a last gasp. The wind is flat calm, glassy, and a 4ft WNW swell with a 10-second period rolls in. The energy is moderate (244). It’s a clean, surfable wave, but nothing to get too excited about.
So, the standout is the morning of the 30th of August. Get it while it’s clean. For the rest, you’ll be scratching your head.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sun afternoon, min 13°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Wed afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 7 | WNW 8 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | SW 17 | SW 19 | WNW 7 | SW 18 | SW 17 | SW 16 |
Wave Graph | |||||||||||||||||||||
130 | 116 | 113 | 157 | 107 | 145 | 219 | 130 | 124 | 159 | 131 | 203 | 117 | 181 | 310 | 235 | 299 | 310 | 600 | 342 | 371 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 10:17AM1.41m | 8:01PM1.80m | 10:45AM1.43m | 8:50PM1.83m | 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 | |||||||
Low Tide | 2:30PM1.03m | 3:21AM0.05m | 3:14PM0.95m | 3:58AM-0.02m | 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 | ||||||||
6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | |
— | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 15 | 16 | 17 | 15 | 16 | 18 | 16 | 16 | 19 | 17 | 17 | 19 | 16 | 15 | 18 | 15 | 15 | 18 | 16 |
Feels °C | 15 | 16 | 13 | 15 | 14 | 13 | 15 | 15 | 14 | 15 | 16 | 15 | 17 | 16 | 14 | 13 | 14 | 12 | 13 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | WNW 8 | WNW 8 | WNW 8 | SSW 14 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | S 12 | S 12 | S 12 | SW 14 | SW 17 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 |
125 | 116 | 95 | 85 | 120 | 145 | 219 | 130 | 124 | 159 | 122 | 75 | 106 | 103 | 169 | 235 | 299 | 319 | 600 | 342 | 371 | |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 18 | SSW 15 | SSW 14 | SW 17 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | WSW 13 | SSW 13 | SW 15 | SW 15 | SW 14 | S 12 | S 12 | S 11 | S 10 | S 10 | S 10 | S 9 |
130 | 114 | 86 | 120 | 107 | 71 | 68 | 68 | 55 | 58 | 53 | 78 | 75 | 74 | 66 | 71 | 58 | 32 | 17 | 16 | 7 | |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 12 | SW 18 | SW 18 | W 11 | W 10 | W 10 | W 16 | WSW 14 | SSW 12 | WSW 13 | WSW 12 | SW 18 | SW 18 | W 10 | W 10 | SW 13 | S 10 | S 10 | W 13 | W 12 |
50 | 37 | 113 | 157 | 9 | 8 | 8 | 20 | 41 | 48 | 34 | 48 | 52 | 87 | 31 | 33 | 28 | 18 | 17 | 3 | 12 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WNW 8 | WNW 7 | WNW 4 | WNW 4 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 7 | WNW 8 |
— | — | — | — | 64 | 62 | 15 | 25 | 90 | 47 | 131 | 203 | 117 | 181 | 310 | 188 | 229 | 310 | 226 | 310 | 362 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 3 | 102 | 3 | 3 | 101 | 3 | 3 | 101 | 93 | 3 | 101 | 74 | 3 | 101 | 3 | 3 | 101 | 3 |
Best forecast wave conditions in Marin County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











