Surf Forecasts:
Deadman's surf forecast from 15 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 2AM (local time) - 3.5ft (1.0m), 16s period, SW swell with 502 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 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+) | - | - |
| Best Surf | - | - |
| 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
Hey, Rusty here. Let’s talk about Deadman’s.
Honestly, for the next week or so, Deadman’s is looking pretty average. We’ve got some swell, mostly from the west-northwest or southwest, but the wind just isn’t working in our favor. Water temp is about normal for this time of year, nothing unusual.
From Saturday the 15th through Tuesday the 18th, it’s mostly flat, messy, or just not worth it. We’re seeing tiny waves, around 2 to 3 feet, and with onshore or cross-shore breezes, it’s going to be choppy and no good. Nothing to get excited about.
Wednesday the 19th morning has a little more on offer – about 4ft from the WNW – but the period is only 7 seconds, and the wind is still cross-shore. It’s doable, but not a standout. Afternoons are all blown out.
Thursday the 20th and Friday the 21st are more of the same. A morning window with light cross-shore winds and waist-high waves, but it gets wrecked by moderate onshore winds every afternoon.
The best chance in the whole 16-day window is Monday the 24th morning. We’ve got a 6ft NW swell with a moderate energy reading of 896, and the wind is light cross-shore. That’s going to give us some clean, head-high waves. For a beach and reef setup, a longer period NW swell can break a bit straight, but with that size and clean morning conditions, it’s your best call for a surfer who knows the spot.
If you’re willing to hold out, there’s a bigger pulse arriving Thursday the 27th morning – a 8ft NW swell with a strong energy of 1250. Wind is light cross-shore. That’s a powerful, serious wave, and at that size it’s for experts only. The following morning, Friday the 28th, bumps up to 10ft with a 10-second period and a very strong energy of 2100. That’s big, heavy water. Only for the very experienced, and even then, the wind is cross-shore in the morning, so it might be bumpy. The morning of Saturday the 29th has a 7ft WNW swell and light wind, but afternoons are messy again.
So, bottom line: the best bet is Monday the 24th morning for a clean, solid session. The bigger stuff at the end of the month is promising but far out, and it comes with size that demands respect. The rest of the time, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sun afternoon, min 12°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Thu afternoon, min 13°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 18 | SW 17 | SW 13 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | WNW 7 | SW 15 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 7 | WNW 7 | WNW 6 | WNW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 252 | 410 | 88 | 502 | 362 | 287 | 309 | 255 | 255 | 198 | 176 | 270 | 162 | 193 | 199 | 235 | 137 | 136 | 175 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross |
High Tide | 00:49AM1.76m | 1:50PM1.73m | 1:41AM1.58m | 2:23PM1.75m | 2:38AM1.40m | 2:58PM1.76m | 3:45AM1.25m | 3:35PM1.75m | 5:17AM1.17m | 4:18PM1.74m | 7:24AM1.19m | 5:08PM1.73m | |||||||
Low Tide | 7:05AM0.01m | 7:38PM0.40m | 7:42AM0.23m | 8:33PM0.37m | 8:21AM0.47m | 9:31PM0.36m | 9:05AM0.70m | 10:35PM0.35m | 9:59AM0.90m | 11:43PM0.32m | 11:13AM1.04m | 00:48AM0.28m | |||||||
 | |  |  | | | | | | | |  | | | | | | | | |
 | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — |
 | 8:04 | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 14 | 15 | 17 | 14 | 15 | 16 | 14 | 14 | 15 | 14 | 16 | 16 | 14 | 15 | 17 | 15 |
Feels °C | 12 | 13 | 12 | 12 | 14 | 14 | 12 | 14 | 12 | 11 | 13 | 13 | 12 | 15 | 14 | 12 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 15 | SW 16 | WNW 7 | SW 15 | SW 15 | SW 15 | W 12 | W 12 | W 11 |
| kJ | 252 | 410 | 271 | 502 | 362 | 287 | 309 | 255 | 255 | 169 | 176 | 261 | 162 | 217 | 226 | 183 | 137 | 98 | 114 |
Swell 2 Height (m) Direction Period (s) | SW 14 | WNW 6 | SW 13 | WNW 6 | WNW 6 | W 10 | WNW 6 | WNW 7 | WNW 9 | SSW 18 | WNW 8 | W 16 | SSW 14 | W 13 | W 12 | W 11 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 167 | 21 | 88 | 34 | 35 | 17 | 20 | 40 | 25 | 33 | 39 | 19 | 123 | 82 | 74 | 93 | 129 | 136 | 138 |
Swell 3 Height (m) Direction Period (s) | W 13 | W 10 | WNW 10 | W 10 | W 10 | S 10 | WNW 9 | WNW 9 | S 9 | SW 9 | W 13 | W 11 | SW 17 | SW 21 | SW 21 | — | WSW 19 | SW 19 | SW 20 |
| kJ | 30 | 8 | 20 | 18 | 17 | 8 | 29 | 25 | 2 | 3 | 14 | 2 | 70 | 17 | 18 | — | 37 | 14 | 15 |
Wind waves Height (m) Direction Period (s) | WNW 7 | — | WNW 6 | — | — | WNW 6 | — | — | WNW 6 | WNW 7 | WNW 7 | WNW 7 | — | WNW 7 | WNW 8 | WNW 7 | WNW 7 | WNW 6 | WNW 7 |
| kJ | 53 | — | 20 | — | — | 33 | — | — | 47 | 198 | 136 | 270 | — | 193 | 199 | 235 | 132 | 136 | 175 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 21 | 3 | 74 | 3 | 3 | 47 | 3 | 3 | 102 | 3 | 3 | 101 | 3 | 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.
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