The Patch Surf Break

Lat Long: 37.90° N 122.70° W

The Patch Surf Forecast and Surf Report

Issued: 10 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Patch sea temperature is
15.5° C
1.2° 

The Patch surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Patch surf forecast from 12 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 11PM (local time) - 3ft (0.9m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 16 Aug, 2AM (local time) - 3.5ft (1.0m), 16s period, SW swell with 502 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 8PM (local time) - 2ft (0.6m), 18s period with SSW swell.

Best Forecast Surf Conditions for The Patch this week:

The surf forecast for The Patch over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 8PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.8m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Patch in the next 16 days are 1.0m 16s and forecast to arrive on Sunday (Aug 16) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Monday (Aug 17) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 14th Aug)2ft (0.6m) 18s
Best Surf11PM (Sat 15th Aug)3ft (0.9m) 16s
Most Powerful 2AM (Sun 16th Aug)3.5ft (1.0m) 16s

Table - best surf conditions forecast for The Patch over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s chew on what The Patch has in store for us.

First off, the early part of this run is a total dud. From Wednesday the 12th through Friday the 14th, the conditions are just ugly. The wind is messy, mostly cross-onshore, and the swell is a weak, short-period 4ft to 4ft from the WNW. The wave energy is moderate (around 333 to 376), but it’s all bump and chop. Not worth getting wet for.

We hit a bit of a lull for a few days. Saturday the 15th and Sunday the 16th are only marginal. The swell drops to around 2ft to 3ft, but the wind is still cross or cross-onshore, keeping the surface messy. The energy is moderate (around 389 to 447), but it’s just not clean enough to get stoked on.

Things start to turn around on Monday the 17th afternoon. That’s the first time we see a clean, cross-offshore breeze from the WNW. The swell is a small 3ft from the SW with a nice 15-second period, but the energy is moderate (340). It’s only marginal, but it’s a sign of better things.

The clear standout, and the best session in this whole forecast, is Tuesday the 18th and Wednesday the 19th. The Patch is going to be glassy. The wind is a light, cross-offshore from the WNW – that’s a huge plus. The swell is a fun-sized 2ft to 2ft from the SW. The period is a solid 15 to 16 seconds, which is a proper long-period groundswell. It’ll have some real push and shape. The energy is moderate to strong (434 to 500). The water is a touch warmer than normal for the time of year, sitting at 60°, which is a nice little bonus. This is a beginner-friendly wave, so bring the log. The crowd is "sometimes", so you might have a few friends out, but it won’t be packed.

After that, the outlook gets a bit fuzzy. Thursday the 20th and Friday the 21st offer marginal conditions with some clean windows, but the swell is smaller and less consistent. Then on Friday the 21st afternoon, we see a spike in size to 6ft from the WNW, but the period tanks to a short 6 seconds. That’s a windswell, and it’ll be a bumpy, lumpy mess. The energy is moderate (416).

Looking further out to the weekend of the 23rd of August, Sunday the 23rd afternoon looks promising. The swell is 4ft from the WNW with a 9-second period, and the wind is a clean cross-offshore from the W. The energy is moderate (403). It’s a bigger wave, so it’s worth watching, but it’s a long ways off, so don’t bet the farm on it.

The final week sees a return to smaller, cleaner conditions from the SW. The best of that late run looks like Wednesday the 26th, with a 2ft to 3ft swell, a lovely 16-second period, light offshore winds, and clean faces. Classic small-wave fun.

So, for the best surf, lock in Tuesday the 18th and Wednesday the 19th. It’s not going to be a big swell, but it’ll be clean, lined up, and perfect for a relaxing session.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Wed afternoon, min 13°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Sun morning, min 11°C on Sat night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
0
0
2
1
0
3
1
0
1
1
1
1
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
WNW
8
1.2
WNW
8
1.3
WNW
8
1.3
WNW
8
0.6
SW
16
0.6
SW
15
0.6
SW
15
0.5
SW
18
0.6
SW
18
0.9
SW
17
0.7
SW
16
1
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
15
0.8
SW
15
0.8
SW
15
0.7
SW
14
0.7
SW
15
0.6
SW
16
1.2
WNW
8
Wave Graph
Metric surfscale
Energy kJ
197
202
223
206
176
149
136
164
252
405
268
502
362
349
309
255
255
214
220
208
170
Wind (km/h)
15
S
15
SW
15
SSW
20
SSW
20
SW
10
WSW
15
SW
15
W
15
WNW
10
WSW
15
W
15
WNW
10
WSW
15
W
10
W
5
WSW
20
WNW
15
WNW
15
WNW
20
WNW
20
NW
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
12:44PM1.14m
11:44PM1.45m
1:20PM1.19m
00:35AM1.38m
1:54PM1.22m
1:26AM1.27m
2:27PM1.24m
2:18AM1.14m
3:01PM1.24m
3:16AM1.01m
3:36PM1.24m
4:24AM0.89m
4:13PM1.22m
Low Tide
6:22PM0.41m
7:09AM-0.15m
7:13PM0.35m
7:48AM-0.07m
8:04PM0.30m
8:26AM0.03m
8:56PM0.26m
9:03AM0.16m
9:51PM0.23m
9:42AM0.28m
10:49PM0.21m
10:24AM0.41m
11:52PM0.19m
part cloud
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cloud
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clear
part cloud
part cloud
part cloud
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clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:24
6:24
6:24
6:26
6:26
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:06
8:05
8:04
8:01
8:00
8:00
 mm
Temp °C
15
16
14
14
15
14
15
15
14
15
15
13
16
16
13
15
15
13
16
17
14
Feels °C
13
14
13
12
12
12
14
13
12
14
13
11
15
14
11
14
12
10
14
14
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 16 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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