The Patch surfForecast / CAL – Marin County / USA

information circle16 Day Weather and Surf, issued 4 am Sunday 17 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
12.8° C
(Which is slightly warmer than usual)

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 Sunday (May 17) at 2PM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 0.4m and 14s. Another secondary swell of 0.1m and 18s is also forecast. 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 3.0m 11s and forecast to arrive on Sunday (May 17) at 2PM. 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+) 2PM (Sun 17th May)10ft (3.0m) 11s
Best Surf 2PM (Sun 17th May)10ft (3.0m) 11s
Most Powerful 2PM (Sun 17th May)10ft (3.0m) 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. Warm (max 20°C on Mon morning, min 10°C on Sun morning). Winds decreasing (fresh winds from the N on Sun night, calm by Tue morning).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Wed afternoon, min 9°C on Fri night). Wind will be generally light.

Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
!
4
3
1
3
3
2
2
2
2
2
2
1
1
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)
3.5
WNW
11
3
WNW
11
2.5
WNW
11
1.6
WNW
10
1.9
WNW
10
2
WNW
10
1.6
WNW
10
1
W
14
1.7
WNW
10
1.4
WNW
10
0.9
WNW
12
1.7
WNW
11
1.5
WNW
11
1.4
WNW
11
1.3
WNW
11
1.3
WNW
10
1.3
WNW
10
1.2
WNW
10
1.3
WNW
9
1.2
WNW
10
1.5
WNW
10
Wave Graph
Metric surfscale
Energy kJ
3226
2432
1384
530
734
761
532
435
495
370
242
737
540
452
387
360
331
275
293
264
446
Wind (km/h)
15
NW
30
NW
25
NNW
15
NNW
25
NW
10
NW
5
WNW
20
WNW
5
WSW
10
S
10
W
5
SW
10
SSW
10
WSW
10
SSW
10
SSW
15
WSW
10
WSW
15
SSW
15
WSW
10
SSW
cross-off
cross-off
off
off
cross-off
cross-off
glassy
cross-off
cross
on
cross
cross-on
cross-on
cross-on
cross-on
on
cross
cross
cross-on
cross-on
cross-on
High Tide
1:43PM0.99m
00:12AM1.44m
2:40PM0.99m
1:02AM1.41m
3:38PM1.00m
1:55AM1.34m
4:36PM1.01m
2:54AM1.24m
5:33PM1.03m
4:00AM1.13m
6:26PM1.07m
5:14AM1.01m
7:14PM1.12m
Low Tide
6:49PM0.48m
8:00AM-0.37m
7:42PM0.52m
8:52AM-0.35m
8:42PM0.54m
9:47AM-0.29m
9:52PM0.55m
10:45AM-0.21m
11:12PM0.52m
11:44AM-0.12m
00:34AM0.45m
12:41PM-0.02m
1:50AM0.35m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:56
5:56
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:15
8:16
8:17
8:17
8:19
8:20
Temp °C
14
16
18
20
19
14
20
20
13
17
18
13
16
16
12
15
16
11
13
13
10
10
9
11
15
13
9
18
16
9
15
16
11
14
14
11
13
14
9
11
10
8
Swell 1
Height (m)
Direction
Period (s)
3
WNW
11
0.4
SW
13
0.4
SW
13
1.6
WNW
10
0.3
W
18
2
WNW
10
1.6
WNW
10
1.4
WNW
10
1.7
WNW
10
1.4
WNW
10
1.2
WNW
9
1.7
WNW
11
1.5
WNW
11
1.4
WNW
11
1.3
WNW
11
1.3
WNW
10
1.3
WNW
10
1.2
WNW
10
1.3
WNW
9
1.2
WNW
10
1.5
WNW
10
Energy kJ
2015
46
45
530
56
761
532
435
495
370
242
737
540
452
387
360
331
275
293
264
446
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
14
0.2
SSW
18
0.1
SW
18
0.2
SSW
13
0.2
SSW
16
0.6
W
16
0.8
W
15
1
W
14
0.9
W
13
0.9
W
13
0.9
WNW
12
0.3
SW
15
0.5
SW
19
0.4
SW
15
0.4
SW
15
0.6
SW
18
0.4
SW
18
0.4
SW
15
0.6
SW
16
0.6
SW
16
0.6
SW
16
Energy kJ
77
30
13
17
26
188
267
405
268
263
228
35
184
84
80
194
109
78
203
203
161
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.2
SSW
18
0.1
S
18
0.2
SSW
16
0.2
SSW
13
0.3
SW
17
0.3
SSW
15
0.3
SW
16
0.3
SSW
14
0.4
SW
21
0.4
SW
16
0.3
SSW
13
0.3
SSW
13
0.3
SSW
12
0.3
SSW
12
0.3
SW
14
0.3
SW
14
0.3
SSW
12
0.1
SW
22
0.1
SW
21
0.3
S
12
Energy kJ
12
31
6
26
16
44
44
42
40
162
65
34
34
31
29
32
32
29
18
18
24
Wind waves
Height (m)
Direction
Period (s)
3.5
WNW
11
3
WNW
11
2.5
WNW
11
1.9
WNW
10
Energy kJ
3226
2432
1384
734
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
2
1
3
3
3
4
2
1
3
2
3
2
2
1
3
2
4
2
Distance (km)
22
121
0
0
120
0
0
121
8
22
25
8
22
99
22
22
25
54
31
208
22
Best forecast wave conditions in Marin County
Rating
(10 max)
4
4
3
4
3
4
2
3
4
2
2
2
3
2
2
Best forecast wave conditions in United States
Rating
(10 max)
6
4
5
4
3
4
3
3
4
4
4
4
3
4
3
2
3
4
3
4
3
Header Global
Rating
(10 max)
6
4
5
4
4
4
4
4
4
5
4
5
5
4
4
5
6
4
5
4
4
  • 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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