The Patch surfForecast / CAL – Marin County / USA

information circle48hr Weather and Surf, issued 10 pm Friday 20 Mar 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
13.6° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at The Patch today?

The current surf forecast for The Patch at 3AM is: 1.3m 8s primary swell from a West-northwest direction and 0.9m 11s secondary swell from a West direction (forecast issued at 10:00pm March 20). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (21 Mar)7.5ft (2.3m)9s
Afternoon (21 Mar)7.5ft (2.3m)8s
Evening (21 Mar)8ft (2.5m)9s

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


Updates in  hr  min  s Forecast update imminent
Fri
20
Saturday
21
Sunday
22
Monday
23
8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM
Rating
(10 max)
2
2
2
4
4
3
1
2
!
3
!
4
3
3
3
2
2
2
2
2
2
3
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.9
W
1
W
1.3
WNW
2
NW
2.3
NW
2.2
NW
2.1
WNW
2.5
WNW
3
WNW
2.5
WNW
3
NW
2.2
WNW
2
WNW
1.8
WNW
2.4
NW
1.8
WNW
1.9
WNW
2
WNW
2.1
WNW
2.1
WNW
1.9
WNW
1.8
WNW
1.6
WNW
1.4
WNW
Period(s) (?)1112889888991010101010101088810101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2052621914897726716129961289112617159437616631049627697574587601755679530443
Wind
(km/h)
10
WNW
5
W
5
WSW
15
NW
10
NNW
15
NW
25
NW
30
NW
30
NW
25
NW
10
NW
5
NNE
10
NW
5
WNW
20
WNW
20
WNW
25
WNW
20
NW
20
NW
20
NW
15
NW
15
W
20
WNW
20
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crossglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
1:19AM
1.31
2:24PM
1.02
1:55AM
1.33
3:29PM
0.94
2:37AM
1.32
4:48PM
0.88
Low Tide
/ height (m)
7:39PM
0.22
8:26AM
-0.05
8:17PM
0.32
9:17AM
-0.08
8:59PM
0.42
10:15AM
-0.09
Fri
20
Saturday
21
Sunday
22
Monday
23
Sunrise----7:13-------7:11-------7:09---
Sunset-------7:22-------7:23-------7:24
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C18161413141716151110101111151413101091010141413
Feels °C (?)161513111214119557109141195656611108
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Patch surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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