Seaside Cove Surf Break

Lat Long: 45.98° N 123.94° W

Seaside Cove Surf Forecast and Surf Report

Issued: 4 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Seaside Cove sea temperature is
15.2°C
0.2° 

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


Seaside Cove surf forecast from 15 Sep 2026:

  • Best quality surf: Monday 14 Sep, 11PM (local time) - 1.5ft (0.4m), 17s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 21 Sep, 5AM (local time) - 2.5ft (0.7m), 19s period, SW swell with 357 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 11PM (local time) - 1.5ft (0.4m), 17s period with SW swell.

Best Forecast Surf Conditions for Seaside Cove this week:

The surf forecast for Seaside Cove over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 11PM. The primary swell is predicted to be 0.4m and 17s period with a secondary swell of 0.8m and 8s. Another secondary swell of 0.4m and 13s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Seaside Cove in the next 16 days are 0.7m 19s and forecast to arrive on Monday (Sep 21) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 14th Sep)1.5ft (0.4m) 17s
Best Surf11PM (Mon 14th Sep)1.5ft (0.4m) 17s
Most Powerful 5AM (Mon 21st Sep)2.5ft (0.7m) 19s

Table - best surf conditions forecast for Seaside Cove over the next 16 days.


The Lowdown

G’day, Rusty here. Alright, let’s have a proper look at what’s coming up for Seaside Cove. It’s a beach, reef and point setup that’s consistent and exposed to the NW, so it’s usually worth a look when the swell lines up. The water temp is sitting at 59° right now, which is about average for this time of year – no surprises there.

To be honest, the next week and a bit is a bit of a grind. There’s plenty of swell energy kicking around, but the wind and conditions just aren’t playing ball for clean waves. Monday the 14th has some small 3ft WNW swell, but the wind is cross-on and the whole thing feels a bit average – more of a paddle-around than a proper session. Tuesday the 15th is even worse, with tiny 1ft swell and long 17-second period, but it’s straight-up messy. Wednesday the 16th morning is the first little glimmer – the wind goes cross-off and it’s clean, but the swell’s only 3ft with a short 7-second period, so it’s small and weak.

Thursday the 17th and Friday the 18th see a bit more size, around 4ft to 4ft from the WNW, but again the wind is cross-on and the conditions are only marginal. The combined energy sits around 300 to 360 (moderate wave energy), but the onshore breeze spoils it. Saturday the 19th and Sunday the 20th drop right off – tiny 2ft to 2ft swells, long period stuff from the SW, and moderate cross-winds. Not worth getting wet for.

Monday the 21st and Tuesday the 22nd have a bit more energy, especially Tuesday morning with 5ft WNW swell and 11-second period, and the combined energy jumps up to 815 (strong wave energy). But the wind is cross, and it’s only rated marginal. You can feel something’s brewing, but it’s not quite there yet.

Now, here’s where it gets interesting. Wednesday the 23rd of September morning is the real standout. The wind goes cross-off, it’s clean, the swell is 5ft from the WNW with a 10-second period, and the combined energy is 585 (moderate wave energy). The forecast says “expect very good surf conditions” – and I’m calling it: that morning session at Seaside Cove is the best on offer across the whole period. The wind is light and the waves will have shape. Crowds are possible here sometimes, so get in early.

Thursday the 24th slips back into marginal conditions, and Friday the 25th morning has another clean window with cross-off wind and 4ft W swell (energy 519, moderate), but it’s not quite as solid as Wednesday. After that, the weekend of the 26th and 27th drops right off again – small, weak, and mostly messy.

The final few days from the 28th of September into the 29th are all small, with 2ft to 2ft swell, long period, and mostly marginal. Not much to chase.

So, if you’ve got one session to aim for, make it Wednesday the 23rd of September morning. The rest of the run is a mix of average and small – but the forecasts can always change, and it’s a consistent spot, so don’t write it off entirely.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Wed afternoon, min 12°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Thu morning, min 12°C on Thu night). Wind will be generally light.

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
0
0
1
1
0
1
1
1
1
1
1
1
0
0
2
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
WNW
8
0.4
SW
18
0.4
SW
17
0.4
WSW
17
0.4
SW
17
0.4
SW
16
0.4
SW
16
1
NW
8
0.9
WNW
8
1.3
WNW
8
1.2
NW
8
1.2
WNW
8
1.2
WNW
8
1.1
NW
8
0.6
WSW
19
0.5
SW
19
0.5
SW
18
0.6
WSW
18
0.7
SW
18
0.6
WSW
18
0.6
SW
19
Wave Graph
Metric surfscale
Energy kJ
116
93
75
117
76
68
96
113
101
212
211
188
179
151
251
184
164
209
319
221
287
Wind (km/h)
10
SW
10
NW
5
NNE
5
N
10
NNW
10
NE
10
NNE
20
N
10
NNE
5
NNW
10
NNW
10
S
10
SSW
10
NW
15
N
15
N
20
N
15
N
15
N
20
NNW
5
N
Wind State
cross-on
cross-on
cross-off
cross
cross-on
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross-off
cross
cross
cross
High Tide
2:54PM1.74m
3:56AM1.38m
3:26PM1.69m
4:53AM1.27m
4:01PM1.61m
6:00AM1.18m
4:43PM1.53m
7:26AM1.13m
5:38PM1.45m
8:56AM1.14m
6:51PM1.40m
9:59AM1.19m
8:09PM1.40m
Low Tide
10:06AM0.20m
10:55PM0.03m
10:40AM0.27m
11:42PM0.05m
11:16AM0.34m
00:34AM0.08m
11:57AM0.40m
1:36AM0.11m
12:53PM0.44m
2:48AM0.12m
2:19PM0.46m
3:59AM0.12m
3:50PM0.44m
4:57AM0.09m
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
6:54
6:56
6:56
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:29
7:27
7:24
7:22
7:21
7:19
7:16
 mm
Temp °C
16
16
14
15
15
14
18
21
15
18
17
14
15
16
14
15
15
12
14
15
14
Feels °C
14
14
13
14
14
13
16
18
13
17
16
14
14
15
13
12
12
9
12
12
13
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Seaside Cove Surf forecast

The above surf forecast table for Seaside Cove provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Seaside Cove can be found by selecting the local surf guide option on the grey menu. Our Seaside Cove surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Seaside Cove) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Seaside Cove may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Seaside Cove is 24 km (15 miles) from Astoria. If you plan a vacation in North Oregon, look for hotels and other accommodation in Astoria. Astoria has rooms for a wide range of budgets as well as car hire and transport links.

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