Seaside Cove Surf Break

Lat Long: 45.98° N 123.94° W

Seaside Cove Surf Forecast and Surf Report

Issued: 10 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Seaside Cove sea temperature is
16.2°C
0.9° 

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 9 Sep 2026:

  • Best quality surf: Friday 11 Sep, 2AM (local time) - 4.5ft (1.3m), 8s period, WNW swell with glassy winds.
  • Most powerful swell: Friday 11 Sep, 8AM (local time) - 4.5ft (1.4m), 9s period, WNW swell with 313 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 11PM (local time) - 1.5ft (0.4m), 10s period with WNW 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 Tuesday (Sep 08) at 11PM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.7m and 5s. 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 1.4m 9s and forecast to arrive on Friday (Sep 11) at 8AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 8th Sep)1.5ft (0.4m) 10s
Best Surf 2AM (Fri 11th Sep)4.5ft (1.3m) 8s
Most Powerful 8AM (Fri 11th Sep)4.5ft (1.4m) 9s

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


The Lowdown

Alright, surf’s up… or at least it’s gonna try to be. Rusty here, looking at the next couple of weeks for you. Right off the bat, the water’s sitting at 61°, which is just about normal for this time of year, so no surprises there.

The next few days are a bit of a write-off, to be honest. We’re looking at tiny, weak surf with a messy cross-shore wind. The energy’s pretty anemic, only checking in around 146 to 389 (weak to moderate at best). There’s just nothing to get excited about. From Tuesday the 8th through Thursday the 10th, you’re better off finding something else to do. This stretch is going to be flat and choppy.

Now, here’s where it gets interesting. Friday morning, the 11th of September, is our first real standout. The swell bumps up to 5ft from the WNW, with a period of 9 seconds. The energy jumps to 529 (moderate), but the big news is the wind – it’s glassy. Absolutely perfect conditions at Seaside Cove. This is the kind of morning you call in sick for. The swell direction is a bit north of the optimum, but clean, wave-catching conditions will make up for it. Expect some fun, clean waves with that 5ft on offer. This is the pick of the first week.

The weekend is a mixed bag. Saturday the 12th has a bit of a pulse in the morning but it’s messy. The afternoon cleans up with a light offshore wind, and the swell drops to 2ft, which could be okay for the loggers. Sunday the 13th is blown out again with a moderate cross-shore.

The following week starts off small. Monday the 14th has a clean, glassy morning with 3ft from the WNW, but it’s short-period stuff. It’s surfable, but not a patch on the Friday. The middle of the week is pretty lackluster, with small, poor-condition waves and energy readings staying in the weak range around 160-270. Thursday the 17th morning has a clean, cross-offshore wind and a consistent 3ft from the WNW, which could be alright on the point. The afternoon, however, is ruined by a strong cross-shore wind at 16 mph.

Now, for the big one. The real standout of this whole outlook is the Tuesday the 22nd into Wednesday the 23rd. We’ve got a significant push of energy coming in, with readings hitting a strong 948 (moderate to strong) on Tuesday afternoon, with a 5ft swell from the West and a 12-second period. This is a proper groundswell. Wednesday morning the 23rd will be glassy and clean, with the swell still a solid 4ft from the WNW at 11 seconds. This is the other window to keep an eye on, but it’s a week and a half out, so treat it as promising but not set in stone. It’s going to be a touch over the 5ft mark on Tuesday, so it might be a bit much for beginners, but for the rest of us, this looks like the best waves of the forecast. This longer-period swell will be at its best on the point and reef sections, rather than the beach breaks, where it might get a little too lined up.

So, to sum it up: you’ve got a great morning on Friday the 11th, a so-so window around Monday the 14th and Thursday the 17th mornings, and a potentially epic run on Tuesday the 22nd and Wednesday the 23rd. The big gap is the start – the next few days are a dead loss. Hang in there.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Wed afternoon, min 14°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Sat morning. Very mild (max 16°C on Fri afternoon, min 12°C on Fri night). Wind will be generally light.

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
1
1
1
1
0
3
3
2
3
1
2
2
0
0
2
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
WNW
10
0.4
SW
13
0.7
NW
6
0.6
WNW
13
0.8
WNW
12
0.9
WNW
12
0.6
SW
18
0.6
SW
17
1.3
WNW
8
1.4
WNW
9
1.3
WNW
9
0.8
SW
16
0.7
SW
15
0.7
SW
14
0.6
SW
14
1.1
W
9
0.6
SW
14
1
WNW
8
0.4
SW
19
0.4
SW
18
0.4
SW
17
Wave Graph
Metric surfscale
Energy kJ
78
62
34
135
192
193
192
190
230
313
266
287
220
211
164
190
134
122
93
79
75
Wind (km/h)
15
N
20
NNW
15
N
10
NNW
15
NNW
10
N
15
NNW
15
NNW
0
WNW
5
W
5
WNW
5
SE
5
S
5
ENE
5
SE
20
SSW
15
SW
5
SE
5
NNW
15
NNW
5
NNW
Wind State
cross
cross
cross-off
cross
cross
cross
cross
cross-on
glassy
glassy
on
cross-off
cross
off
glassy
cross
cross-on
cross-off
glassy
cross-on
glassy
High Tide
11:38AM1.45m
10:55PM1.79m
12:15PM1.55m
11:50PM1.80m
12:48PM1.65m
00:41AM1.76m
1:21PM1.72m
1:29AM1.70m
1:52PM1.76m
2:17AM1.60m
2:23PM1.77m
3:05AM1.49m
2:54PM1.74m
3:56AM1.38m
Low Tide
6:18PM0.27m
7:05AM-0.08m
7:11PM0.20m
7:46AM-0.06m
7:59PM0.13m
8:23AM-0.02m
8:45PM0.07m
8:59AM0.04m
9:28PM0.04m
9:33AM0.12m
10:12PM0.02m
10:06AM0.20m
10:55PM0.03m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
rain showers
light rain
light rain
clear
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:46
6:47
6:48
6:48
6:50
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:40
7:38
7:37
7:35
7:32
7:30
7:29
 mm
1
3
2
Temp °C
18
18
14
18
19
15
15
15
14
15
16
14
15
14
14
15
16
14
14
15
14
Feels °C
16
14
12
16
17
14
15
13
13
15
15
14
14
13
13
12
14
13
14
13
13
  • Map Icons:
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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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