Surf Forecasts:
Deadman's surf forecast from 14 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 5AM (local time) - 5.5ft (1.7m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 2AM (local time) - 8ft (2.4m), 9s period, NW swell with 885 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 5.5ft (1.7m), 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 Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.4m and 17s. 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 2.4m 9s and forecast to arrive on Tuesday (Sep 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 13s period and expected on Monday (Sep 14) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 15th Sep) | 5.5ft (1.7m) 9s |
| Best Surf | 5AM (Tue 15th Sep) | 5.5ft (1.7m) 9s |
| Most Powerful | 2AM (Tue 15th Sep) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Deadman's over the next 16 days.
The Lowdown
Alright, grab your wettie, I’m Rusty, and here’s what we’re looking at for Deadman’s.
Right off the bat, Monday morning the 14th is calling our name. We’ve got a clean 5-foot swell rolling in from the WNW, with a solid 9-second period pushing a moderate 475 energy. The wind is absolutely dead – glassy conditions, mate. That’s about as good as it gets for an advanced spot like this, though keep in mind this is a beach and reef setup with an optimum swell from the NW, so this WNW direction is close enough to really light it up. Just a heads up, Deadman’s can get crowded, so get in early.
The rest of the first week is a bit of a tease. Tuesday the 15th morning looks clean with offshore cross-off winds and a 4.6-foot WNW swell (393 energy), but the period drops to 8 seconds, so it’ll be a bit softer. Wednesday morning the 16th is still surfable but marginal with 4-foot. Then we hit a real flat spell from Thursday the 17th through the weekend. Thursday and Friday mornings (17th and 18th) get these tiny, long-period groundswells from the SW (1.6-2-foot, 16-19 second periods) – the 19-second stuff on Friday the 18th morning has a big 382 energy, and Friday morning is glassy, but the size is just too small to get into. Saturday and Sunday (19th & 20th) are cross-shore and small, not worth paddling out.
The following week starts off a bit better. Monday the 21st has a 2.6-foot SW groundswell at 17 seconds, pushing a strong 651 energy, but it’s lumpy with cross-shore winds. Tuesday morning the 22nd is dead calm again (glassy) with a 2-foot SW groundswell (491 energy), but again, tiny waves for this exposed spot. The standout for the second week actually looks like Wednesday the 23rd morning – we see a 3.6-foot WNW swell at 10 seconds (492 energy) with light cross-off winds, making it clean and a step up in size. That’s your best bet if you miss the Monday the 14th session.
After that, things drop off. The 25th and 26th are poor and small, with weak energy readings dropping below 250. Sunday morning the 27th has a glassy 3.3-foot WNW (182 energy), but it’s a short 7-second period – borderline. Even the last few days of September look weak and messy. The only real highlights are that Monday the 14th morning and maybe the Wednesday the 23rd morning. Get on it when you can.
Short Range ForecastMostly dry. Very mild (max 18°C on Mon afternoon, min 14°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 | NW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SW 16 | SW 16 | SW 15 | SW 19 | SW 19 | WNW 6 | SW 18 | SW 18 | SW 18 | SW 18 | SW 19 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 281 | 336 | 885 | 262 | 192 | 223 | 207 | 192 | 122 | 122 | 121 | 104 | 236 | 236 | 133 | 199 | 252 | 252 | 255 | 339 | 300 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-off | cross | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 1:25PM1.78m | 2:35AM1.36m | 1:57PM1.76m | 3:43AM1.28m | 2:35PM1.73m | 5:17AM1.24m | 3:21PM1.69m | 7:13AM1.28m | 4:17PM1.65m | 8:21AM1.34m | 5:22PM1.63m | 8:59AM1.39m | 6:28PM1.63m | ||||||||
Low Tide | 7:55PM0.17m | 7:42AM0.77m | 8:45PM0.21m | 8:26AM0.95m | 9:42PM0.27m | 9:28AM1.09m | 10:49PM0.30m | 10:58AM1.16m | 11:59PM0.29m | 12:19PM1.15m | 1:02AM0.25m | 1:21PM1.06m | 1:54AM0.18m | ||||||||
 | |  | | | |  | |  |  | |  | | | | | | | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — | — | 7:15 | — | — | 7:13 | — | — | 7:12 | — | — | 7:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 15 | 16 | 17 | 15 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 17 | 14 | 15 | 16 | 14 | 15 | 16 | 14 |
Feels °C | 17 | 16 | 13 | 14 | 14 | 12 | 14 | 13 | 14 | 15 | 15 | 15 | 16 | 15 | 11 | 14 | 14 | 11 | 13 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | SW 17 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SW 16 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 19 | WNW 8 |
| kJ | 281 | 77 | 524 | 262 | 192 | 223 | 207 | 89 | 122 | 96 | 75 | 58 | 44 | 236 | 133 | 199 | 252 | 252 | 255 | 339 | 270 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 18 | SW 14 | SW 16 | SW 16 | SW 15 | SW 19 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 18 |
| kJ | 61 | 42 | 77 | 93 | 64 | 87 | 87 | 64 | 30 | 122 | 121 | 104 | 236 | 81 | 45 | 44 | 44 | 42 | 38 | 23 | 300 |
Swell 3 Height (m) Direction Period (s) | SW 18 | S 9 | SW 12 | SW 12 | W 13 | SSW 20 | SSW 19 | WNW 12 | SSW 18 | WNW 11 | WNW 10 | WNW 10 | SW 14 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | SSW 12 |
| kJ | 78 | 2 | 23 | 23 | 31 | 37 | 72 | 28 | 61 | 22 | 41 | 19 | 103 | 20 | 18 | 17 | 17 | 15 | 6 | 6 | 14 |
Wind waves Height (m) Direction Period (s) | — | WNW 9 | NW 9 | — | — | — | — | WNW 8 | — | — | — | — | — | WNW 10 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | — |
| kJ | — | 336 | 885 | — | — | — | — | 192 | — | — | — | — | — | 105 | 115 | 88 | 74 | 131 | 97 | 110 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 101 | 3 | 3 | 47 | 47 | 20 | 102 | 74 | 3 | 103 | 3 | 3 | 101 | 3 | 3 | 103 | 74 | 3 | 101 | 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.
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