Surf Forecasts:
Deadman's surf forecast from 30 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: Friday 4 Sep, 2AM (local time) - 3ft (0.9m), 18s period, SW swell with 528 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 8AM (local time) - 3.5ft (1.0m), 16s period with SW 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 Sunday (Aug 30) at 8AM. The primary swell is predicted to be 1.0m and 16s period with a secondary swell of 1.4m and 8s. Another secondary swell of 1.9m and 8s is also forecast. 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 0.9m 18s and forecast to arrive on Friday (Sep 04) 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 0.9m 12s period and expected on Friday (Sep 04) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 30th Aug) | 3.5ft (1.0m) 16s |
| Best Surf | 8AM (Sun 30th Aug) | 3.5ft (1.0m) 16s |
| Most Powerful | 2AM (Fri 4th Sep) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Deadman's over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s coming up.
We’ve got a bit of a mixed bag ahead. The first real window of surf kicks off Saturday morning, August 29th, at Deadman's. This is a beach and reef setup, pretty exposed, and it likes a swell from the northwest. The water is sitting at 64°, which is a solid 6° warmer than usual for this time of year – that’s very unusual, so you’ll be comfortable in a shorty or even boardies if you’re tough.
Saturday morning, August 29th, we’ve got a 3 ft swell from the southwest, but the wind is a cross-shore from the southwest at 9 mph. There’s moderate wave energy (777) and a long period of 18 seconds, which is a proper groundswell. The conditions are marginal, though, with a bit of cross-chop, so it’s not a standout. The afternoon goes downhill fast with a cross-onshore wind.
Sunday morning, August 30th, is where it gets interesting. The swell holds at 3 ft from the southwest, but the wind swings to a light cross-offshore from the south-southwest at 6 mph. That’s clean, and the wave energy is still solid (675). The period is still a long 16 seconds. This is a decent session for a confident surfer, but it’s not huge.
The real standout, the one you want to circle, is Sunday, September 6th, morning. The wind goes glassy – dead calm from the southwest at 3 mph. The swell is 3 ft from the southwest with a 15-second period, and the wave energy is still moderate (412). The forecast calls for good surf conditions. This is the best on offer: clean, glassy, and a long-period groundswell. Because it’s a beach and reef setup, that long period might make the waves a bit straight, but with glassy conditions, it’ll be worth the paddle.
The next notable one is Friday, September 11th, morning. Another glassy morning, wind from the west-southwest at 3 mph. The swell jumps a bit to 4 ft from the west, with a period of 9 seconds and moderate energy (479). This is a good call for a fun session, but it’s a week and a half out, so keep an eye on it.
Saturday, September 12th, morning sees the swell building to 5 ft from the west-northwest, period 10 seconds, and energy ramping up to 585. The wind is light cross-shore, so it’s marginal but not terrible. By Sunday, September 13th, morning, it’s 5 ft from the same direction, but still with a light cross-shore. That’s getting into expert territory as it’s over 5 ft, and the beach break might get messy.
Overall, it’s a slow start, but there are a couple of clean glassy windows to hunt. The best bet is September 6th morning, with September 11th morning as a solid backup. Crowds? At Deadman's, it’s often busy, so expect company, especially on the clean days.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 12°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | WNW 8 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SW 13 | SW 17 | SW 19 | SW 15 | SW 18 | SW 18 | SW 17 | SW 16 |
Wave Graph | |||||||||||||||||||||
600 | 410 | 502 | 489 | 314 | 305 | 301 | 99 | 58 | 51 | 50 | 111 | 95 | 83 | 173 | 179 | 145 | 528 | 375 | 338 | 437 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-off | 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 |
High Tide | 12:40PM1.64m | 00:26AM1.62m | 1:08PM1.71m | 1:15AM1.52m | 1:39PM1.79m | 2:12AM1.41m | 2:14PM1.85m | 3:19AM1.31m | 2:56PM1.89m | 4:47AM1.25m | 3:48PM1.91m | 6:35AM1.26m | 4:50PM1.93m | ||||||||
Low Tide | 6:19PM0.44m | 6:27AM0.20m | 7:01PM0.34m | 6:58AM0.38m | 7:48PM0.27m | 7:32AM0.58m | 8:43PM0.21m | 8:11AM0.78m | 9:47PM0.17m | 9:03AM0.96m | 11:01PM0.12m | 10:24AM1.09m | 00:17AM0.05m | ||||||||
6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | |
— | 7:44 | — | — | 7:42 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 14 | 14 | 15 | 14 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 18 | 16 | 17 | 18 | 16 | 15 | 17 | 16 |
Feels °C | 12 | 12 | 10 | 12 | 12 | 11 | 12 | 13 | 14 | 15 | 14 | 14 | 15 | 15 | 14 | 16 | 15 | 15 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | WNW 8 | WNW 8 | SW 14 | WNW 8 | SW 14 | SSW 13 | SSW 13 | SSW 13 | WNW 10 | WNW 10 | WNW 9 | SSW 12 | SSW 12 | WNW 8 | WNW 10 | WNW 10 | WNW 10 | SW 16 |
600 | 410 | 502 | 186 | 176 | 305 | 172 | 206 | 156 | 192 | 116 | 60 | 52 | 49 | 162 | 147 | 82 | 157 | 157 | 140 | 437 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | SW 16 | SW 15 | S 9 | SW 14 | SW 19 | W 10 | W 7 | S 11 | SW 13 | SSW 12 | SW 13 | WNW 9 | WNW 8 | SSW 12 | SW 18 | SSW 12 | SW 17 | WNW 10 |
15 | 6 | 6 | 489 | 314 | 2 | 301 | 15 | 7 | 27 | 39 | 82 | 57 | 83 | 62 | 55 | 137 | 528 | 245 | 338 | 107 | |
Swell 3 Height (m) Direction Period (s) | S 9 | — | W 12 | S 9 | S 9 | SW 21 | SW 20 | S 14 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | S 10 | SW 17 | SW 19 | SW 15 | S 10 | SW 18 | SSW 12 | SSW 11 |
6 | — | 3 | 6 | 2 | 18 | 16 | 36 | 58 | 51 | 50 | 111 | 95 | 32 | 173 | 179 | 145 | 56 | 375 | 164 | 107 | |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 7 | — | — | WNW 8 | — | WNW 8 | WNW 7 | — | W 7 | — | — | — | — | — | — | — | — | — | — |
177 | 286 | 344 | — | — | 270 | — | 99 | 54 | — | 28 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 102 | 74 | 3 | 102 | 65 | 47 | 102 | 74 | 119 | 103 | 3 | 3 | 103 | 3 | 3 | 103 | 21 | 3 | 47 | 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.











