Dillon Beach surf break

Dillon Beach surfForecast / CAL – Marin County / USA

information circle48hr Weather and Surf, issued 4 am Thursday 21 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Dillon Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dillon Beach sea temperature is
10.6° C
(Which is 1.5°C colder than average for this time of year)

How big are the waves at Dillon Beach today?

The current surf forecast for Dillon Beach at 7AM is: 2.0m 11s primary swell from a West-northwest direction and 0.6m 19s secondary swell from a Southwest direction (forecast issued at 04:00am May 21). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (PDT) & DateWave HeightWave Period
Morning (21 May)6ft (1.9m)11s
Afternoon (21 May)5ft (1.6m)11s
Evening (21 May)5ft (1.5m)11s

Table - waves today at Dillon Beach. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 16°C on Thu morning, min 8°C on Thu night). Wind will be generally light.

Thursday
21
Friday
22
Saturday
23
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
4
4
3
1
1
2
3
2
3
3
1
1
1
2
1
2
3
2
0
0
1
1
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.2
WNW
11
2.1
WNW
11
1.9
WNW
11
1.7
WNW
11
1.6
WNW
11
1.5
WNW
11
1.5
WNW
11
1.5
WNW
10
1.6
NW
10
1.5
WNW
10
1.5
WNW
10
1.5
WNW
10
1.6
NW
10
1.5
NW
10
1.4
NW
10
1.4
NW
10
1.5
NW
10
1.4
NW
10
1.4
WNW
9
1.3
WNW
10
1.2
WNW
10
0.6
SW
16
1
WNW
10
1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
1113
999
799
687
584
523
513
504
500
448
448
448
490
441
400
392
415
368
334
307
256
159
203
203
Wind (km/h)
5
S
5
SE
5
SSE
10
WSW
15
W
10
W
10
W
5
WSW
5
S
10
SSE
10
SSE
15
SSW
15
SW
10
SW
10
SSW
5
S
10
S
15
SSE
15
SSE
15
S
15
S
15
SSW
10
SSW
5
SSW
glassy
cross-off
glassy
on
on
on
on
glassy
cross
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
cross
cross
cross
glassy
High Tide
2:47AM1.55m
5:26PM1.28m
3:53AM1.40m
6:20PM1.32m
5:08AM1.24m
7:09PM1.38m
Low Tide
10:24AM-0.29m
10:51PM0.79m
11:22AM-0.16m
00:15AM0.69m
12:20PM-0.02m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:20
8:21
8:22
Temp °C
11
11
12
16
14
12
9
8
9
10
11
14
14
13
12
11
11
12
12
13
13
12
11
10
10
10
11
15
11
10
7
7
7
8
9
12
11
11
11
10
9
9
9
10
10
9
9
9
Swell 1
Height (m)
Direction
Period (s)
2.2
WNW
11
2.1
WNW
11
1.9
WNW
11
1.7
WNW
11
1.6
WNW
11
1.5
WNW
11
1.5
WNW
11
1.5
WNW
10
1.6
NW
10
1.5
WNW
10
1.5
WNW
10
1.5
WNW
10
1.6
NW
10
1.5
NW
10
1.4
NW
10
1.4
NW
10
1.5
NW
10
1.4
NW
10
1.4
WNW
9
1.3
WNW
10
1.2
WNW
10
0.8
WNW
7
1
WNW
10
1
WNW
10
Energy kJ
1113
999
799
687
584
523
513
504
500
448
448
448
490
441
400
392
415
368
334
307
256
70
200
200
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
15
0.4
SW
19
0.6
SW
19
0.6
SW
19
0.4
SW
15
0.4
SW
15
0.5
SW
15
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.4
SW
18
0.6
SW
18
0.5
SW
18
0.4
SW
15
0.4
SW
14
0.4
SW
14
0.6
SW
15
0.6
SW
15
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.7
NW
10
0.6
SW
16
0.6
SW
16
Energy kJ
78
133
236
236
80
82
113
82
80
77
111
197
154
75
73
73
137
141
155
157
159
98
203
203
Swell 3
Height (m)
Direction
Period (s)
0.4
SSW
13
0.4
SSW
13
0.4
SW
15
0.4
SW
15
0.4
SW
19
0.4
S
13
0.4
S
12
0.4
S
13
0.4
S
12
0.4
S
12
0.4
SW
15
0.4
SW
15
0.4
SW
14
0.4
SW
18
0.4
SW
18
0.3
S
12
0.3
S
12
0.3
S
12
0.3
S
12
0.3
S
12
0.3
S
12
0.6
SW
16
0.3
S
12
0.3
S
12
Energy kJ
59
58
80
80
133
51
49
50
48
48
75
75
74
109
108
25
25
26
26
25
25
159
23
24
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
3
0.2
SSE
3
0.2
SSE
3
0.3
SE
3
0.2
S
3
Energy kJ
2
1
1
2
1
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
2
2
1
1
3
3
3
3
3
3
3
2
2
3
3
3
2
2
2
2
2
Distance (km)
0
0
0
65
24
24
24
0
1
0
0
15
54
20
20
1
1
0
15
15
15
15
1
0
Best forecast wave conditions in Marin County
Rating
(10 max)
4
4
4
2
3
3
3
3
3
3
3
3
3
2
2
3
3
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
4
4
3
3
3
4
4
3
3
3
3
3
3
4
4
4
3
3
2
3
2
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
7
7
7
6
6
7
8
6
7
8
8
7
7
6
6
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)
Map placeholder

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