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The Patch Surf Forecast
/ CAL – Marin County (14 breaks) / California (404 breaks) /
Surf Forecasts:
The Patch surfForecast / CAL – Marin County / USA
12 Day Weather and Surf, issued 10 pm Thursday 18 Sep 2025 PDT
Best Forecast Surf Conditions for The Patch this week:
The surf forecast for The Patch over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 5AM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.6m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Patch in the next 12 days are 1.7m 11s and forecast to arrive on Monday (Sep 22) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Sunday (Sep 21) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 19th Sep) | 4.5ft (1.4m) 10s |
| Best Surf | 5AM (Fri 19th Sep) | 4.5ft (1.4m) 10s |
| Most Powerful | 11PM (Mon 22nd Sep) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for The Patch over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 19°C on Fri afternoon, min 14°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Tue morning, min 14°C on Sun night). Wind will be generally light. | |||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 10 | 11 | 10 | 10 | 10 | 9 | 9 | 12 | 11 | 7 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 502 | 322 | 250 | 142 | 109 | 100 | 100 | 199 | 591 | 222 | 505 | 551 | 643 | 511 | 387 | 270 | 260 | 275 | 275 | 389 | 460 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross | glass | cross | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- off | cross | on | cross- on | on | on | cross- on | cross- off | cross | cross- off | |
High Tide / height (m) | 9:47PM 1.27 | 11:16AM 1.16 | 10:38PM 1.25 | 11:45AM 1.18 | 11:25PM 1.21 | 12:11PM 1.20 | 12:10AM 1.16 | 12:35PM 1.20 | 12:53AM 1.09 | 12:57PM 1.21 | 1:38AM 1.03 | 1:20PM 1.20 | 2:26AM 0.96 | 1:46PM 1.19 | ||||||||
Low Tide / height (m) | 5:10AM 0.00 | 5:19PM 0.35 | 5:45AM 0.05 | 6:01PM 0.27 | 6:18AM 0.11 | 6:40PM 0.21 | 6:48AM 0.19 | 7:17PM 0.16 | 7:18AM 0.27 | 7:53PM 0.13 | 7:47AM 0.36 | 8:31PM 0.11 | 8:17AM 0.45 | |||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Sunrise | - | 6:54 | - | - | 6:56 | - | - | 6:56 | - | - | 6:58 | - | - | 6:58 | - | - | 6:58 | - | - | 7:00 | - | |
| Sunset | - | - | 7:12 | - | - | 7:10 | - | - | 7:08 | - | - | 7:07 | - | - | 7:06 | - | - | 7:05 | - | - | 7:02 | |
 |  |  |  | | | | | | | | | | | | | | | | | | ||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 15 | 17 | 19 | 16 | 18 | 19 | 15 | 17 | 18 | 15 | 18 | 19 | 15 | 20 | 20 | 15 | 17 | 18 | 14 | 16 | 16 | |
| Feels °C (?) | 14 | 17 | 19 | 16 | 17 | 18 | 13 | 16 | 16 | 13 | 18 | 19 | 14 | 20 | 19 | 13 | 17 | 17 | 13 | 16 | 15 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for CAL - Marin County
Continuing clean conditions at The Patch (calm at Fairfax wx 12 km from The Patch). 1.9m 10s swell from the WNW with a 0.5m 12s groundswell from the SW. 2 swells combining to make bigger set waves.
1 h 38 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Patch surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the The Patch Surf forecast
The above surf forecast table for The Patch provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Patch can be found by selecting the local surf guide option on the grey menu. Our The Patch 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 (The Patch) 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 The Patch 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.
The Patch is 15 km (9 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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