Surf Forecasts:
Stinson Beach surf forecast from 29 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: Friday 4 Sep, 5AM (local time) - 4ft (1.2m), 18s period, SSW swell with 835 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 1.2m 18s and forecast to arrive on Friday (Sep 04) at 5AM. 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 | 5AM (Fri 4th Sep) | 4ft (1.2m) 18s |
Table - best surf conditions forecast for Stinson Beach over the next 16 days.
The Lowdown
Alright, Rusty here, talking about Stinson Beach for the next couple of weeks.
The first week is a bit of a slog. You’ve got a lot of small, choppy, cross-onshore winds messing things up. Most of the time it’s poor surf conditions or marginal, and the wave energy is mostly weak to moderate, in the low hundreds. The water temp is about what you’d expect for now.
The first real highlight is Saturday morning, September 5th. The wind goes dead calm, glassy as glass, and the ocean looks like a mirror. We’ve got a 0.9m swell from the SW with a long 16-second period, and the combined energy is moderate at 626. The swell direction is right where we want it. The waves are small but clean, perfect for a quiet morning on a longboard.
Then it’s a lot of mess until Tuesday morning, September 8th, which is glassy again with a 1.0m SSW swell. But the story is Tuesday afternoon. The swell jumps to a massive 5.0m from the south, with a 13-second period, and the energy rockets to 7358. That’s way too big for this spot, only for experts, and the wind is a light cross-shore. It’s going to be a proper monster.
After that, it’s back to small, choppy, and poor conditions for the rest of the forecast. The second week is mostly a washout.
So, your best bet is the glassy Saturday morning, September 5th. The Tuesday afternoon, September 8th, is a big, dangerous swell for experts only. The rest is mostly a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sun afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat night, calm by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Tue morning, min 13°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 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SW 13 | SSW 12 | SSW 12 | SW 17 | SSW 14 | SSW 12 | SW 18 | SW 18 | WNW 10 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 600 | 410 | 502 | 489 | 314 | 305 | 301 | 206 | 156 | 192 | 116 | 85 | 150 | 147 | 175 | 299 | 220 | 449 | 366 | 286 | 381 |
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-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 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 | 7:11AM0.85m | 5:24PM1.30m | ||||||||
Low Tide | 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 | 11:43AM0.61m | 1:36AM0.01m | ||||||||
 | |  | | |  |  | | | | | | | | | | | | | | | |
 | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 14 | 16 | 17 | 13 | 15 | 16 | 15 | 18 | 18 | 15 | 17 | 18 | 15 | 18 | 18 | 15 | 15 | 16 | 14 |
Feels °C | 14 | 12 | 9 | 16 | 16 | 11 | 14 | 14 | 14 | 18 | 16 | 14 | 16 | 16 | 14 | 16 | 16 | 13 | 13 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 13 | SSW 13 | SSW 13 | SW 13 | SSW 12 | SSW 12 | WNW 9 | SSW 14 | WNW 9 | SW 18 | WNW 10 | SSW 13 | SW 16 |
| kJ | 600 | 410 | 502 | 191 | 176 | 245 | 176 | 102 | 156 | 192 | 116 | 85 | 150 | 147 | 86 | 299 | 116 | 449 | 202 | 265 | 381 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | WNW 7 | WNW 7 | S 11 | WNW 10 | WNW 10 | WNW 9 | SW 17 | WNW 9 | SSW 12 | SSW 12 | SSW 13 | SW 17 | SSW 12 |
| kJ | 15 | 6 | 6 | 489 | 314 | 305 | 301 | 206 | 57 | 29 | 21 | 40 | 36 | 66 | 175 | 67 | 220 | 152 | 273 | 284 | 158 |
Swell 3 Height (m) Direction Period (s) | S 9 | — | W 12 | S 9 | S 9 | S 9 | SW 20 | W 10 | W 9 | SW 18 | SW 18 | S 11 | SW 16 | SW 16 | S 11 | SW 19 | SW 19 | W 16 | SW 18 | W 15 | WNW 10 |
| kJ | 6 | — | 3 | 2 | 2 | 2 | 16 | 7 | 7 | 51 | 50 | 38 | 69 | 94 | 89 | 177 | 177 | 5 | 366 | 17 | 64 |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 8 | — | — | — | — | — | — | — | W 8 | W 4 | — | — | — | — | — | WNW 10 | — | WNW 10 | WNW 6 |
| kJ | 181 | 334 | 389 | — | — | — | — | — | — | — | 32 | 3 | — | — | — | — | — | 190 | — | 286 | 58 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 119 | 57 | 18 | 119 | 48 | 435 | 119 | 29 | 29 | 120 | 18 | 101 | 202 | 4 | 4 | 119 | 57 | 4 | 939 | 57 |
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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