Surf Forecasts:
Stinson Beach surf forecast from 23 Aug 2026:
- Best quality surf: Sunday 23 Aug, 8AM (local time) - 3.5ft (1.1m), 7s period, WNW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 11PM (local time) - 8ft (2.5m), 8s period, WNW swell with 903 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8AM (local time) - 3.5ft (1.1m), 7s period with WNW 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 23) at 8AM. The primary swell is predicted to be 0.4m and 19s period with a secondary swell of 1.1m and 7s. Another secondary swell of 0.4m and 12s 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 2.5m 8s and forecast to arrive on Saturday (Aug 29) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 23rd Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 8AM (Sun 23rd Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 11PM (Sat 29th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Stinson Beach over the next 16 days.
The Lowdown
Alright team, Rusty here. Let's break down Stinson Beach in feet and degrees.
We kick off with a teaser this Sunday morning, August 23rd. There's a tiny 1ft groundswell from the SW with a super long 19-second period, glassy wind, and low energy (290). It's clean enough for a beginner to have a fun little session, but that's it. The water temp is sitting about normal for this time of year.
After that morning, the wind turns onshore and it's game over for quality waves through the rest of the week. From Sunday afternoon all the way through the end of August, it's mostly poor conditions. The wind is cross-onshore from the WNW, gusting to 15-19 mph, and the swell mixes up to 4-5ft but with a short, choppy period of 6-8 seconds. By Thursday the 27th, we've got 6ft of lumpy windswell with 463 energy and cross winds. No thanks. Honestly, with that much onshore blow, it's a kiteboarder's playground, not a surfer's.
The first week is a bust. Hang tight.
Into the second week, we get a real reward. The standout is Wednesday morning, September 2nd. We're looking at glassy conditions and a clean 5ft swell from the WNW. The period is a short 8 seconds, but that glassy wind makes it rideable and fun. The energy reads (532). Not huge, but clean. Then the real gem lands Thursday morning, September 3rd. Same glassy wind, a solid 5ft swell from the WNW, period stretching to 9 seconds, and a healthy (786) energy reading. That is the morning to plan for. Conditions look very good.
After that, it gets marginal again, but there's one more glassy shot on Monday morning, September 7th, with a clean 4ft WNW swell.
To sum it up: the first week is a wash. Don't bother. Lock in the morning of Thursday September 3rd—that's your best chance for a proper wave. See you out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Wed afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 6 | WNW 8 | WNW 8 | WNW 8 | SW 18 | SSW 14 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 149 | 130 | 116 | 116 | 157 | 120 | 145 | 219 | 130 | 124 | 159 | 140 | 222 | 158 | 248 | 235 | 270 | 319 | 412 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross |
High Tide | 10:45AM0.95m | 8:43PM1.22m | 11:16AM0.98m | 9:32PM1.26m | 11:42AM1.01m | 10:16PM1.29m | 12:06PM1.05m | 10:58PM1.29m | 12:28PM1.08m | 11:39PM1.28m | 12:51PM1.12m | 00:21AM1.24m | |||||||
Low Tide | 4:01AM0.06m | 3:46PM0.61m | 4:44AM0.03m | 4:32PM0.58m | 5:20AM0.00m | 5:11PM0.53m | 5:52AM-0.01m | 5:46PM0.48m | 6:22AM-0.01m | 6:22PM0.42m | 6:51AM0.02m | 6:58PM0.36m | |||||||
 |  | |  | |  | | | | | | | | | | | | | | |
 | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 19 | 21 | 15 | 17 | 18 | 14 | 17 | 18 | 14 | 18 | 19 | 16 | 18 | 18 | 15 | 18 | 18 | 14 |
Feels °C | 13 | 19 | 20 | 14 | 16 | 17 | 12 | 15 | 16 | 11 | 16 | 15 | 12 | 16 | 15 | 11 | 16 | 15 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 16 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 14 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | S 13 | S 12 | S 12 | SW 14 | SW 17 | SW 19 | SW 18 |
| kJ | 63 | 110 | 116 | 116 | 85 | 120 | 145 | 219 | 130 | 124 | 159 | 122 | 123 | 104 | 70 | 130 | 235 | 299 | 252 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 19 | SW 18 | SSW 15 | SSW 14 | SW 17 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | S 14 | SW 15 | SW 15 | SW 15 | S 11 | S 11 | S 10 | S 9 |
| kJ | 37 | 130 | 114 | 86 | 120 | 107 | 71 | 68 | 68 | 55 | 49 | 106 | 78 | 75 | 104 | 60 | 36 | 31 | 16 |
Swell 3 Height (m) Direction Period (s) | WSW 19 | SSW 16 | SW 12 | SW 18 | SW 18 | W 11 | W 10 | NW 7 | W 16 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | W 10 | SW 13 | SW 13 | S 9 |
| kJ | 37 | 50 | 37 | 113 | 157 | 9 | 8 | 13 | 20 | 41 | 58 | 34 | 48 | 24 | 41 | 18 | 27 | 28 | 7 |
Wind waves Height (m) Direction Period (s) | WNW 6 | — | — | — | — | WNW 8 | WNW 7 | W 4 | WNW 4 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 149 | — | — | — | — | 64 | 62 | 9 | 19 | 87 | 62 | 140 | 222 | 158 | 248 | 235 | 270 | 319 | 412 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 0 | 29 | 18 | 18 | 57 | 4 | 4 | 119 | 4 | 4 | 118 | 57 | 4 | 118 | 18 | 4 | 118 | 18 |
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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