Cape Sebastian Surf Break

Lat Long: 42.32° N 124.42° W

Cape Sebastian 48 hour detailed Surf Forecast

Issued: 10 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cape Sebastian sea temperature is
13.5° C
0.6° 

Cape Sebastian surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Cape Sebastian today (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 4.5ft (1.3m), 6s period with NNW swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 1.5ft (0.4m), 19s period with SW swell.
  • Evening surf: Evening surf (11 Aug, local time) - 1.5ft (0.4m), 18s period with SW swell.

The current surf forecast for Cape Sebastian at 6PM is: 0.4m 18s primary swell from a Southwest direction and 0.3m 13s secondary swell from a West-northwest direction (forecast issued at 10:00am August 11). An open ocean swell of 1.7m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (PDT) & DateWave HeightWave Period
Morning (11 Aug)4.5ft (1.3m)6s
Afternoon (11 Aug)1.5ft (0.4m)19s
Evening (11 Aug)1.5ft (0.4m)18s

Table - waves today at Cape Sebastian. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 21°C on Tue afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the NNW on Wed afternoon, calm by Thu night).

Tuesday
11
Wednesday
12
Thursday
13
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
0
0
1
1
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)
1.3
NNW
6
1.4
NNW
6
0.4
SW
19
1.8
NNW
6
0.4
SW
18
0.4
SW
18
0.4
SW
18
0.5
SW
18
0.6
SW
18
0.6
SW
18
1.6
NW
6
2
NW
6
2
NW
7
1.7
NW
7
1.6
NW
7
1.5
NW
7
1.7
NW
7
0.6
SW
16
1.7
NW
7
1.8
NW
7
1.6
NW
7
1.4
NW
7
Wave Graph
Metric surfscale
Energy kJ
145
150
130
246
116
112
111
154
197
194
193
297
347
263
255
206
269
169
261
299
240
181
Wind (km/h)
25
N
35
NNW
40
NNW
40
NNW
35
NNW
30
N
25
N
25
N
25
N
30
NNW
40
NNW
40
NNW
40
NNW
30
N
25
N
25
N
20
N
30
NNW
25
NNW
25
NNW
20
NNW
10
N
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
High Tide
12:08PM2.39m
11:09PM3.05m
12:47PM2.51m
00:03AM3.01m
1:23PM2.62m
Low Tide
5:26AM0.04m
5:11PM1.36m
6:11AM0.03m
6:07PM1.20m
6:53AM0.10m
6:59PM1.05m
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>
6:20
6:20
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:22
8:21
 mm
Temp °C
17
20
21
21
19
16
16
15
16
19
20
19
17
15
13
13
15
18
18
18
15
14
Feels °C
12
14
14
15
14
12
12
11
12
14
13
12
11
10
8
9
12
13
14
14
12
13
  • 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
How to use the Wavefinder 

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 Cape Sebastian 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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