Surf Forecasts:
Stinson Beach surf forecast from 28 Aug 2026:
- Best quality surf: Sunday 30 Aug, 8AM (local time) - 3.5ft (1.0m), 16s period, SW 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★+): Sunday 30 Aug, 8AM (local time) - 3.5ft (1.0m), 16s period with SW swell.
Best Forecast Surf Conditions for Stinson Beach this week:
The surf forecast for Stinson Beach 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 glassy as the swell arrives.
The most powerful waves expected at Stinson Beach 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-onshore at the time the swell arrives.
| 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 | 8AM (Sat 29th Aug) | 3.5ft (1.0m) 18s |
Table - best surf conditions forecast for Stinson Beach over the next 16 days.
The Lowdown
### Imperial
Alright crew, Rusty here. Let's break it down for Stinson Beach. It’s a pretty grim outlook for the next couple of weeks, but there might be one or two moments worth dragging yourself out of bed for.
The water is weirdly warm for this time of year, running about 5°F above normal at 63°F. Honestly, that's the most interesting thing going on right now.
Your first real chance to score something, and I mean *your only real chance*, is the morning of Saturday, August 29th. There’s a SW swell pushing in around 3 ft with a period of 18 seconds. That’s some serious long-period groundswell energy, which feels great under your board. The combined energy is moderate (778). But here’s the thing with a long period like that at a beach break—it can make the waves kind of fat and straight, without a proper wall to hit. The wind will be light, about 6 mph cross-onshore, so there will be some texture on the surface. It’s just about small enough for a confident beginner, but nearly at the limit. Mark it as your best shot.
From there, it’s a wasteland. Basically from Saturday afternoon all the way through to Tuesday, September 8th, it’s a mix of poor surf and near-flat conditions. There is a bit of a tease on Sunday, August 30th morning with 3 ft of swell and 17 seconds between sets, with very light onshore breeze, but the forecast still calls it marginal.
Then things get weird on Wednesday, September 9th morning. A new, short-period NW windswell arrives at 5 ft but only 8 seconds apart. This is lumpy, disorganized energy, and at that size it's too big for beginners. The wind might be light but it’s cross-shore, so don’t expect perfection. The combined energy is moderate (669) but the quality won’t be there. By the afternoon the wind is ripping at 15 mph and it gets messy.
The rest of the run through to Saturday, September 12th, is the same sad story of small, onshore slop. If you have to paddle out, do it on the morning of August 29th. Otherwise, save your energy.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Wed afternoon, min 13°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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 17 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | WNW 10 | SW 16 | SW 16 | SW 19 | SSW 12 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 235 | 380 | 252 | 600 | 410 | 502 | 489 | 314 | 305 | 248 | 206 | 156 | 147 | 114 | 111 | 105 | 93 | 171 | 229 | 181 | 375 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross | on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:51PM1.12m | 00:21AM1.24m | 1:16PM1.17m | 1:05AM1.17m | 1:43PM1.22m | 1:55AM1.09m | 2:13PM1.25m | 2:52AM1.00m | 2:47PM1.28m | 4:01AM0.91m | 3:29PM1.30m | 5:29AM0.85m | 4:21PM1.30m | ||||||||
Low Tide | 6:58PM0.36m | 7:20AM0.07m | 7:37PM0.29m | 7:50AM0.14m | 8:21PM0.22m | 8:23AM0.23m | 9:08PM0.16m | 8:58AM0.33m | 10:03PM0.12m | 9:39AM0.44m | 11:07PM0.08m | 10:31AM0.53m | 00:19AM0.05m | ||||||||
 |  |  |  | | | | |  | | | | | | | | | | | | | |
 | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 18 | 15 | 16 | 16 | 14 | 16 | 17 | 13 | 15 | 16 | 16 | 15 | 16 | 15 | 16 | 17 | 14 | 17 | 18 | 15 |
Feels °C | 12 | 17 | 12 | 14 | 13 | 10 | 15 | 16 | 10 | 14 | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 12 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 13 | WNW 7 | SW 13 | SSW 12 | WNW 9 | SW 16 | SSW 13 | WNW 11 | SSW 13 |
| kJ | 235 | 380 | 252 | 600 | 410 | 502 | 181 | 176 | 202 | 176 | 107 | 58 | 147 | 43 | 83 | 58 | 33 | 171 | 189 | 140 | 195 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 10 | SW 14 | S 9 | S 9 | S 9 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 | WNW 8 | SSW 13 | WNW 10 | SW 16 | SSW 12 | SSW 13 | SW 19 | SSW 12 | WNW 11 |
| kJ | 57 | 32 | 71 | 15 | 6 | 6 | 489 | 314 | 305 | 248 | 206 | 156 | 51 | 114 | 40 | 69 | 61 | 95 | 229 | 178 | 151 |
Swell 3 Height (m) Direction Period (s) | W 10 | NW 9 | S 10 | S 9 | — | S 9 | S 9 | S 9 | S 9 | SW 20 | SW 19 | W 10 | SW 18 | S 11 | SW 18 | SW 19 | SW 16 | WNW 9 | WNW 9 | SW 19 | SW 18 |
| kJ | 34 | 19 | 16 | 6 | — | 1 | 6 | 2 | 2 | 16 | 15 | 8 | 51 | 21 | 111 | 58 | 93 | 31 | 42 | 181 | 375 |
Wind waves Height (m) Direction Period (s) | WNW 6 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | — | — | — | — | — | — | — | — | WNW 4 | WNW 10 | WNW 4 | WNW 4 | — | WNW 8 | WNW 5 |
| kJ | 149 | 83 | 134 | 157 | 235 | 419 | — | — | — | — | — | — | — | — | 19 | 105 | 18 | 10 | — | 26 | 42 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 118 | 118 | 18 | 18 | 120 | 86 | 12 | 119 | 48 | 584 | 155 | 29 | 73 | 452 | 86 | 4 | 118 | 4 | 4 | 385 | 4 |
Best forecast wave conditions in Marin County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Stinson Beach Surf forecast
The above surf forecast table for Stinson Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Stinson Beach can be found by selecting the local surf guide option on the grey menu. Our Stinson Beach 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 (Stinson Beach) 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 Stinson Beach 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.
Stinson Beach is 10 km (6 miles) from the city of Corte Madera. If you plan a vacation in Marin County, look for hotels and other accommodation in Corte Madera. Corte Madera has rooms for a wide range of budgets as well as car hire and transport links.
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