The Patch surfForecast / CAL – Marin County / USA

information circle16 Day Weather and Surf, issued 4 pm Wednesday 20 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
The Patch surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Patch sea temperature is
12.0° C
(Which is normal for this time of year)

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 Thursday (May 21) at 8AM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 0.6m and 19s. 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 2.5m 11s and forecast to arrive on Wednesday (May 27) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (May 25) at 5PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 21st May)5ft (1.6m) 11s
Best Surf11AM (Tue 26th May)8ft (2.5m) 9s
Most Powerful 2AM (Wed 27th May)8ft (2.5m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 16°C on Wed afternoon, min 9°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Mon afternoon, min 9°C on Sun night). Mainly fresh winds.

Wed
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
2
2
1
1
1
1
0
0
0
1
1
0
1
2
2
1
4
3
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
WNW
12
1.4
WNW
10
1.5
WNW
11
1.3
WNW
11
1.3
WNW
10
1.3
WNW
10
1.3
WNW
10
1.1
WNW
10
1.1
WNW
10
1
WNW
10
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.7
W
14
0.8
SW
15
1
WNW
13
2.2
WNW
7
2.5
NW
9
2.1
WNW
10
2.5
WNW
11
2
WNW
11
Wave Graph
Metric surfscale
Energy kJ
236
378
521
379
358
331
331
240
231
203
161
157
186
206
276
356
522
1101
833
1447
973
Wind (km/h)
15
W
5
SSW
5
SW
15
W
10
WSW
15
SSW
15
SW
15
S
15
S
15
SW
10
WSW
10
WSW
15
W
10
W
10
WSW
25
WNW
35
WNW
10
NNW
20
WNW
5
SSE
15
SW
cross
cross-on
cross-on
cross
cross-on
on
cross-on
on
on
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
High Tide
4:36PM1.01m
2:54AM1.24m
5:33PM1.03m
4:00AM1.13m
6:26PM1.07m
5:14AM1.01m
7:14PM1.12m
6:35AM0.91m
7:58PM1.17m
7:59AM0.85m
8:36PM1.21m
9:18AM0.84m
9:10PM1.24m
10:27AM0.85m
Low Tide
9:52PM0.55m
10:45AM-0.21m
11:12PM0.52m
11:44AM-0.12m
00:34AM0.45m
12:41PM-0.02m
1:50AM0.35m
1:36PM0.08m
2:55AM0.23m
2:27PM0.18m
3:50AM0.12m
3:14PM0.28m
4:37AM0.02m
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
5:54
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:17
8:19
8:20
8:21
8:22
8:22
8:22
Temp °C
16
11
16
15
11
14
15
12
13
13
11
13
13
11
13
14
12
14
14
12
17
14
8
15
12
9
12
12
10
10
10
8
11
10
8
11
9
5
12
11
9
14
Swell 1
Height (m)
Direction
Period (s)
1.2
WNW
9
1.4
WNW
10
1.5
WNW
11
1.3
WNW
11
1.3
WNW
10
1.3
WNW
10
1.3
WNW
10
1.1
WNW
10
1.1
WNW
10
1
WNW
10
0.6
WNW
7
0.8
WNW
9
0.8
WNW
9
0.7
W
14
0.8
W
13
1
WNW
13
0.8
SW
15
2.1
WNW
9
0.7
SW
16
2.5
WNW
11
2
WNW
11
Energy kJ
232
378
521
379
358
331
331
240
231
183
35
98
96
206
222
356
280
705
251
1447
973
Swell 2
Height (m)
Direction
Period (s)
0.9
WNW
12
1.1
WNW
12
0.5
SW
19
0.4
SW
15
0.4
SW
15
0.6
SW
18
0.4
SW
18
0.5
SW
15
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.7
WNW
9
0.8
SW
15
0.6
SW
15
0.2
S
10
0.7
SW
16
0.8
SSW
16
0.7
SW
15
0.7
SW
14
Energy kJ
236
337
184
84
80
194
109
109
203
203
161
157
186
75
276
178
7
251
314
239
214
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
16
0.3
SW
15
0.3
SSW
13
0.3
SSW
13
0.3
SSW
12
0.3
SW
14
0.4
SW
14
0.3
SSW
12
0.1
SW
22
0.1
SW
21
0.5
WNW
10
0.3
WNW
16
0.5
W
16
0.6
SW
15
0.5
WNW
9
0.5
SW
18
0.2
S
10
0.1
S
10
Energy kJ
64
35
34
31
30
32
73
29
18
18
55
53
131
134
45
152
7
2
Wind waves
Height (m)
Direction
Period (s)
0.3
S
3
0.4
S
3
0.4
SSW
3
0.5
W
3
2.2
WNW
7
2.5
NW
9
2.1
WNW
10
Energy kJ
1
3
3
5
522
1101
833
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
1
2
2
3
1
2
2
1
1
1
2
2
2
2
3
2
4
2
Distance (km)
121
8
22
25
22
22
31
22
31
31
22
22
25
22
22
121
120
0
157
8
22
Best forecast wave conditions in Marin County
Rating
(10 max)
4
2
3
2
2
3
1
2
2
1
1
2
2
2
4
4
2
Best forecast wave conditions in United States
Rating
(10 max)
2
4
3
4
3
3
3
2
3
2
3
3
2
3
2
2
4
4
3
4
5
Header Global
Rating
(10 max)
5
5
5
4
7
6
6
7
8
7
5
5
4
4
4
5
5
5
5
5
5
  • 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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