Seaside Cove Surf Break

Lat Long: 45.98° N 123.94° W

Seaside Cove Surf Forecast and Surf Report

Issued: 4 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Seaside Cove sea temperature is
15.3°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 27 Aug 2026:

  • Best quality surf: Friday 28 Aug, 5AM (local time) - 3.5ft (1.0m), 8s period, W swell with offshore winds.
  • Most powerful swell: Thursday 3 Sep, 2AM (local time) - 4.5ft (1.3m), 10s period, WNW swell with 331 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 8PM (local time) - 1.5ft (0.4m), 15s 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 Thursday (Aug 27) at 8PM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.7m and 6s. Another secondary swell of 0.4m and 11s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Seaside Cove in the next 16 days are 1.3m 10s and forecast to arrive on Thursday (Sep 03) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 13s period and expected on Wednesday (Sep 02) at 2PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 27th Aug)1.5ft (0.4m) 15s
Best Surf 5AM (Fri 28th Aug)3.5ft (1.0m) 8s
Most Powerful 2AM (Thu 3rd Sep)4.5ft (1.3m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s coming down the line for Seaside Cove. Honestly, it's a quiet start and the whole 16-day window is a real mixed bag. We've got a long stretch of nothing much at the beginning, so don't rush to wax up just yet.

We're starting on Thursday the 27th of August, but there's barely a bump. For the first few days, through the weekend and into early next week, we’re looking at tiny 1 to 2 feet swells from the SW with a long 14 to 18 second period. The winds are all sorts of wrong – cross, cross-on, even onshore – so it's choppy and messy. There's no real energy either, with the combined swell energy sitting weak in the 160 to 260 range. It's a write-off for a paddle. Honestly, for the first four days, you're better off finding something else to do.

We get a slight lift around Sunday the 30th, with the energy creeping up a touch, but it's still tiny and the wind is on it. It's a "marginal" call at best. Monday the 31st is more of the same. Then Tuesday the 1st of September sees a shift in direction, with the swell coming from the WNW at 3 to 3 feet, but the period drops to just 9 seconds, so it’s weak, short-period windswell, and the wind is straight on it from the SW. Not good.

Wednesday the 2nd has a bit more size, hitting 4 feet from the WNW with the combined swell energy jumping to 386 (moderate), but the wind is howling from the S at 15 mph making a right mess of it. This pattern of building swell but hammered by wind continues right through the first week of September. By Friday the 4th, we've got 5 feet of WNW swell and the energy is up to 688, but it's raining and the wind is on it. This is more of a kite-surfing setup than one for a regular board – the chop is going to be nasty.

We finally get a little window of hope. Look at Monday the 7th of September morning. The swell drops back to 2 feet from the SW with a long 14-second period, combined energy of 218 (moderate). More importantly, the wind is NNE at 9 mph, giving us a clean cross-off breeze. The forecast says "expect good surf conditions." It’s small, sure, but it will be the cleanest wave we've seen in a week. You'll need a grovel board.

After that, we head into the second week of the outlook. Things get a bit more interesting in size but stay tricky. Thursday the 10th has 3–4 feet of WNW swell with a period bumping up to 11 seconds, and the combined energy is moderate to strong in the 378–475 range. The wind is a light cross-on from the SW, so it's not clean, but it's not a disaster. Then Friday the 11th of September has the biggest swell of the whole run: 5 feet in the morning going to 6 feet in the afternoon from the WNW, with a solid 9-second period and combined energy up to 560 and 669. It's a moderate energy swell, but once again, the wind is on it or cross-on. It's a "marginal" call. That 6 feet is getting a bit pushy for beginners and the onshore wind will make it lumpy.

So where does that leave us? There's no true standout, but if I had to pick the one time to paddle out, it's Monday the 7th of September in the morning for the cleanest conditions, even if it's tiny. The second best would be Friday the 11th of September for the biggest swell of the period, but you'll be battling a light onshore wind. Crowds at Seaside Cove can be "sometimes" busy, but on that Monday morning with tiny waves, it should be quiet. For the bigger Friday, expect more people out.

The water temperature at Seaside Cove is 60°, which is just 0.4° off the long-term average, so pretty normal for the time of year – no need for a full winter suit yet if you've got a decent spring one.

Stay patient, the surf is on a slow build but the wind just won't play ball.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Fri morning, min 13°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Tue morning. Very mild (max 17°C on Mon afternoon, min 13°C on Sun night). Wind will be generally light.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
0
0
2
0
0
2
1
1
2
0
1
2
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
15
0.5
SW
15
0.4
SW
15
0.4
SW
14
0.5
SW
14
0.5
SW
16
0.4
SW
16
0.4
SW
18
0.5
SW
15
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.6
SW
14
1
WNW
9
1
WNW
9
0.9
WNW
9
0.9
WNW
9
0.9
WNW
9
1.2
WNW
9
1.3
WNW
10
Wave Graph
Metric surfscale
Energy kJ
116
106
75
74
99
130
95
78
109
153
159
159
134
132
164
161
149
143
113
208
331
Wind (km/h)
20
S
10
SW
5
NNE
10
NNW
15
NW
5
WSW
10
SW
10
W
5
SSE
10
SW
10
WNW
5
ENE
5
NW
10
WNW
10
SSE
15
SW
20
SW
20
S
20
SSE
25
S
20
SSW
Wind State
cross
cross-on
glassy
cross
cross-on
glassy
cross-on
on
glassy
cross-on
cross-on
off
cross-on
on
cross-off
cross-on
cross-on
cross
cross-off
cross
cross
High Tide
1:18PM1.46m
00:40AM1.69m
1:42PM1.54m
1:21AM1.66m
2:08PM1.62m
2:03AM1.61m
2:35PM1.68m
2:49AM1.52m
3:04PM1.73m
3:41AM1.41m
3:38PM1.76m
4:40AM1.30m
4:17PM1.77m
Low Tide
8:09AM-0.03m
8:07PM0.24m
8:38AM-0.02m
8:45PM0.20m
9:07AM0.01m
9:25PM0.15m
9:37AM0.06m
10:07PM0.10m
10:08AM0.12m
10:53PM0.07m
10:41AM0.20m
11:45PM0.05m
11:17AM0.27m
00:44AM0.04m
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
rain showers
light rain
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:31
6:31
6:33
6:33
6:35
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:01
8:00
7:58
7:55
7:53
7:52
 mm
3
2
2
3
2
Temp °C
15
16
15
17
17
15
16
16
15
16
16
15
16
17
15
14
16
15
14
14
15
Feels °C
13
14
16
15
15
14
15
13
14
14
15
14
15
16
15
11
12
12
10
10
12
  • Map Icons:
  • Break
  • 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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