The Patch surfForecast / CAL – Marin County / USA

information circle48hr 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)

How big are the waves at The Patch today?

The current surf forecast for The Patch at 1PM is: 3.0m 11s primary swell from a West-northwest direction and 0.4m 14s secondary swell from a Southwest direction, 0.1m 18s secondary swell from a Southwest direction (forecast issued at 04:00am May 17). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (PDT) & DateWave HeightWave Period
Morning (17 May)13ft (4.0m)11s
Afternoon (17 May)10ft (3.0m)11s
Evening (17 May)10ft (3.0m)11s

Table - waves today at The Patch. (Swell directed towards the surf break)


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).

Sunday
17
Monday
18
Tuesday
19
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
!
!
!
!
!
!
!
!
4
3
3
3
2
1
3
4
3
3
3
3
3
2
2
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3.5
WNW
11
3.5
WNW
11
4
WNW
11
3.5
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
2.5
WNW
11
2.2
WNW
10
1.9
WNW
10
1.6
WNW
10
1.6
WNW
11
1.9
WNW
10
2.2
WNW
10
2.1
WNW
10
2
WNW
10
1.9
WNW
10
1.7
WNW
10
1.6
WNW
10
1.5
WNW
10
1
W
14
1.1
W
14
1.6
WNW
10
Wave Graph
Metric surfscale
Energy kJ
2824
2527
3720
3226
2477
2432
2017
2071
1384
1071
741
530
540
734
908
849
761
731
598
532
502
435
442
443
Wind (km/h)
25
NW
20
NW
15
NNW
15
NW
25
NW
30
NW
25
NW
20
NNW
25
NNW
35
N
25
N
15
NNW
25
NW
25
NW
25
NW
15
NW
10
NW
5
N
0
NNE
5
WNW
15
WNW
20
WNW
20
NW
10
WNW
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
glassy
cross-off
cross-off
cross-off
cross-off
High Tide
11:27PM1.43m
1:43PM0.99m
00:12AM1.44m
2:40PM0.99m
1:02AM1.41m
3:38PM1.00m
Low Tide
7:10AM-0.36m
6:49PM0.48m
8:00AM-0.37m
7:42PM0.52m
8:52AM-0.35m
8:42PM0.54m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:15
8:16
Temp °C
9
9
10
14
15
16
17
17
18
18
18
20
19
18
14
14
14
14
16
20
20
19
13
13
3
5
6
10
9
9
10
11
11
9
11
15
13
12
9
11
12
12
15
18
16
14
9
11
Swell 1
Height (m)
Direction
Period (s)
0.4
SSW
14
0.4
SSW
14
3
WNW
11
3
WNW
11
0.4
SW
14
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SW
13
1.9
WNW
10
1.6
WNW
10
0.3
SSW
16
0.3
W
18
0.3
W
18
0.4
WNW
16
2
WNW
10
1.9
WNW
10
1.7
WNW
10
1.6
WNW
10
0.9
W
14
1.4
WNW
10
1.1
W
14
1.6
WNW
10
Energy kJ
81
81
2192
2015
46
46
45
45
45
44
741
530
51
56
55
90
761
731
598
532
333
435
442
443
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.1
SW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.1
SW
18
0.1
SW
18
0.4
SW
13
0.2
SSW
13
0.2
SSW
13
0.2
SSW
16
0.2
SSW
12
0.3
SW
17
0.6
W
16
0.6
W
16
0.8
W
15
0.8
W
15
0.3
SW
17
1
W
14
0.3
SW
16
1
W
13
Energy kJ
81
81
79
77
12
30
30
31
13
13
44
17
17
26
15
46
188
186
294
267
44
405
42
340
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.1
S
18
0.1
S
17
0.2
SSW
16
0.2
SSW
16
0.2
WSW
16
0.2
SSW
13
0.3
SW
17
0.2
SSW
12
0.3
SW
17
0.3
SSW
15
0.3
SSW
15
0.3
SSW
15
0.3
SSW
15
0.3
SW
16
0.3
SSW
15
0.3
SW
16
Energy kJ
12
31
31
31
6
6
26
26
26
16
45
15
44
47
43
44
44
42
42
42
Wind waves
Height (m)
Direction
Period (s)
3.5
WNW
11
3.5
WNW
11
4
WNW
11
3.5
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
2.5
WNW
11
2.2
WNW
10
1.6
WNW
11
1.9
WNW
10
2.2
WNW
10
2.1
WNW
10
1.5
WNW
10
1.4
WNW
10
Energy kJ
2824
2527
3720
3226
2477
2432
2017
2071
1384
1071
540
734
908
849
502
378
Nearest Offshore or Glassy
Rating
(10 max)
5
4
5
4
4
4
5
4
4
2
3
2
2
1
2
3
3
3
3
3
3
3
4
3
Distance (km)
120
22
21
22
120
121
121
0
0
83
0
0
120
120
83
0
0
0
0
0
0
121
54
0
Best forecast wave conditions in Marin County
Rating
(10 max)
4
5
4
4
4
3
3
4
4
3
3
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
7
4
8
6
4
4
5
6
5
4
5
4
4
3
4
4
4
4
4
3
3
3
4
4
Header Global
Rating
(10 max)
7
4
8
6
4
4
5
6
5
4
5
4
5
4
4
4
4
4
4
4
4
4
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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