The Patch Surf Break

Lat Long: 37.90° N 122.70° W

The Patch Surf Forecast and Surf Report

Issued: 10 am 18 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 19 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 11PM (local time) - 5ft (1.6m), 7s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Thursday 20 Aug, 2AM (local time) - 5ft (1.6m), 8s period, WNW swell with 294 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 8AM (local time) - 2.5ft (0.7m), 14s period with SW 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 Wednesday (Aug 19) at 8AM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 1.2m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Patch in the next 16 days are 1.6m 8s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 19th Aug)2.5ft (0.7m) 14s
Best Surf11PM (Wed 19th Aug)5ft (1.6m) 7s
Most Powerful 2AM (Thu 20th Aug)5ft (1.6m) 8s

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


The Lowdown

Alright, I’ve been staring at the charts for The Patch, and here’s how it’s shaping up.

It’s flat as a pancake out there right now. The first real surf you can actually ride doesn’t show until Thursday, August 20th. Before that, it’s just knee-high mush, so save your energy.

Thursday morning brings a weak little wave. We’re talking 0.7m (2ft) from the West with a 12-second period, and a light offshore breeze smoothing it out. The wave energy is moderate at 417. It’s small, but it’s clean – perfect for a longboard. The water is 60°F, which feels a touch warmer than normal for this time of year.

Friday the 21st and Saturday the 22nd, the swell jumps to 1.5m (5ft) from the West-Northwest, but the period drops to a junky 7 seconds. That’s short-period, bumpy wind swell. Expect closeouts and messy sections. Not good. Sunday the 23rd drops to tiny 0.4m (1ft), but with a very long 19-second period. That’s a tease – all that groundswell energy with no height to push it.

We hit a flat patch from Monday the 24th through Wednesday the 27th. The only real chance in that stretch is Thursday morning the 27th, with 1.4m (5ft) of West-Northwest swell at 8 seconds and clean, offshore wind. The energy that morning is a strong 430. It’s decent, but not the best of the forecast.

Now, the big one. Saturday, August 29th, a new North-West swell arrives with 1.9m (6ft) waves, but the energy is already strong at 1063. The wind is side-shore, so it’s a bit choppy. That’s expert territory.

The absolute standout is Sunday, August 30th. We get a solid 2.1m (7ft) of North-West swell. The wave energy is very strong at 1110, and the wind is a light offshore breeze, so it will be clean and well-shaped. This is excellent surf for experienced surfers only. Monday the 31st still has leftover 1.5m (5ft) waves hanging around, clean but less powerful.

Heading into the first week of September, there’s still some life. Wednesday morning, September 2nd, has 1.4m (5ft) of West-Northwest swell with glassy conditions. A fine session for the advanced crew.

Long story short: the first week is lackluster. The big weekend – especially Sunday, August 30th – is your best bet, but keep an eye on the forecast as we get closer.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 18°C on Wed afternoon, min 12°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Sat morning, min 13°C on Fri morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
1
2
2
1
1
1
1
1
1
1
2
1
1
1
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
15
0.6
SW
16
1.2
WNW
7
0.7
SW
15
0.7
SW
15
1.6
WNW
8
0.6
SSW
14
1.3
WNW
7
1.6
WNW
7
1.5
WNW
7
1.5
WNW
7
1.5
WNW
6
1.1
WNW
8
1.1
WNW
8
1.1
WNW
8
1
WNW
8
0.4
SW
18
0.8
WNW
9
0.5
SW
18
0.4
SW
18
0.5
SW
17
Wave Graph
Metric surfscale
Energy kJ
220
208
149
217
223
294
134
158
249
192
186
181
128
142
146
130
114
113
157
120
145
Wind (km/h)
10
W
20
WNW
10
W
5
WSW
20
WNW
15
WNW
10
WNW
25
WNW
15
WNW
20
WNW
25
WNW
15
NW
10
WSW
20
WNW
10
WNW
10
W
15
W
10
W
10
WSW
15
W
15
WNW
Wind State
cross
cross-off
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross
cross
cross
cross-off
High Tide
4:13PM1.22m
5:53AM0.82m
4:57PM1.19m
7:43AM0.81m
5:49PM1.18m
9:11AM0.86m
6:48PM1.17m
10:06AM0.91m
7:48PM1.19m
10:45AM0.95m
8:43PM1.22m
11:16AM0.98m
9:32PM1.26m
Low Tide
10:24AM0.41m
11:52PM0.19m
11:15AM0.52m
1:00AM0.17m
12:22PM0.60m
2:08AM0.14m
1:41PM0.64m
3:09AM0.10m
2:51PM0.64m
4:01AM0.06m
3:46PM0.61m
4:44AM0.03m
4:32PM0.58m
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:28
6:30
6:31
6:31
6:31
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
7:59
7:57
7:55
7:54
7:52
7:52
 mm
Temp °C
15
17
13
17
18
13
17
17
14
16
17
14
18
18
14
17
18
14
16
16
14
Feels °C
14
16
10
17
17
9
16
15
11
13
14
11
17
17
11
16
16
13
15
14
13
  • 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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