Cape Sebastian Surf Break

Lat Long: 42.32° N 124.42° W

Cape Sebastian 48 hour detailed Surf Forecast

Issued: 4 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cape Sebastian sea temperature is
13.4° C
0.8° 

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 (20 Aug):

  • Afternoon surf: Afternoon surf (20 Aug, local time) - 3ft (0.9m), 11s period with WNW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 3ft (0.9m), 11s period with WNW swell.

The current surf forecast for Cape Sebastian at 8PM is: 0.9m 11s primary swell from a West-northwest direction and 0.8m 7s secondary swell from a Northwest direction (forecast issued at 04:00pm August 20). The wind direction is predicted to be glassy and the swell rating is 2.

Time (PDT) & DateWave HeightWave Period
Morning (20 Aug)--
Afternoon (20 Aug)3ft (0.9m)11s
Evening (20 Aug)3ft (0.9m)11s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Sun morning, min 12°C on Thu night). Wind will be generally light.

Thu
20
Friday
21
Saturday
22
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)
1
1
2
2
2
2
1
1
1
1
1
1
1
1
1
0
0
0
1
1
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)
0.9
WNW
11
0.9
WNW
11
0.9
WNW
11
0.7
SW
14
0.7
SW
14
0.7
SW
14
0.7
SW
14
0.7
SW
14
0.7
SSW
14
0.6
SSW
14
0.6
SSW
13
0.7
WNW
10
0.7
WNW
10
0.5
SSW
13
0.5
SSW
13
0.5
SSW
13
0.5
SSW
13
0.6
WNW
10
0.6
WNW
9
0.6
WNW
9
Wave Graph
Metric surfscale
Energy kJ
210
206
202
200
203
206
208
208
175
123
118
104
102
98
98
98
98
71
67
67
Wind (km/h)
5
W
5
WNW
0
NNW
0
S
5
SE
5
SE
5
SSE
10
SW
10
SW
10
SSW
10
SSW
10
SE
10
ESE
15
ESE
10
SE
10
S
10
SW
5
WSW
5
N
10
NNE
Wind State
cross-on
cross
glassy
glassy
glassy
glassy
cross-on
on
on
on
on
cross-on
cross
cross
cross
cross-on
on
cross-on
cross-off
off
High Tide
5:49PM2.47m
8:47AM1.85m
6:49PM2.43m
10:02AM1.93m
7:55PM2.44m
Low Tide
11:14AM1.60m
1:36AM0.84m
12:21PM1.72m
2:43AM0.78m
1:47PM1.76m
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part cloud
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part cloud
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clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:10
8:09
8:07
 mm
Temp °C
16
16
14
13
12
12
13
16
17
16
14
13
13
13
14
17
18
17
15
15
Feels °C
16
16
15
14
12
11
12
15
16
15
13
12
11
11
13
15
17
17
15
14
  • 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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