Seaside Cove surf break

Seaside Cove surfForecast / Oregon North / USA

information circle12 Day Weather and Surf, issued 3 pm Wednesday 03 Dec 2025 PST
Forecast update in hr  min  s Forecast update imminent
Seaside Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Seaside Cove sea temperature is
11.3° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Seaside Cove this week:

The surf forecast for Seaside Cove over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 03) at 10PM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.1m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Seaside Cove in the next 12 days are 5.0m 15s and forecast to arrive on Wednesday (Dec 10) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Monday (Dec 08) at 10PM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Wed 3rd Dec)4.5ft (1.3m) 13s
Best Surf 4AM (Tue 9th Dec)15ft (4.5m) 12s
Most Powerful 1PM (Wed 10th Dec)16ft (5.0m) 15s

Table - best surf conditions forecast for Seaside Cove over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 28mm), heaviest during Thu night. Very mild (max 12°C on Thu night, min 8°C on Wed night). Winds increasing (calm on Wed afternoon, fresh winds from the W by Fri night).

Days 3-6 Weather Summary Heavy rain (total 91mm), heaviest during Mon afternoon. Very mild (max 13°C on Sun morning, min 8°C on Mon night). Winds decreasing (strong winds from the SSW on Sun morning, calm by Mon night).

Wed
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
3
2
0
1
0
0
0
0
2
0
0
0
0
3
3
0
2
5
5
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
W
1.2
W
1
W
1.2
W
1.3
W
1.1
W
1.6
W
3
W
3.5
WNW
2.5
W
2.1
W
1.6
W
2.2
W
2.4
W
2.4
W
2.3
WNW
3.5
W
4
W
3.5
W
4.5
W
4
W
Period(s) (?)131312131211710121110981011121212131616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)77246628045547228724720393287188188442255812301413155933444358412596536920
Wind
(km/h)
0
SSE
10
SSE
20
S
20
S
15
SW
20
SW
25
W
30
W
20
WSW
20
SW
25
S
45
SSW
25
WSW
15
S
20
SSE
40
SSW
20
NNW
5
SSE
5
ESE
30
SSW
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off
crosscrosscross-
on
cross-
on
ononcross-
on
cross-
on
crosscrossoncrosscross-
off
cross-
on
cross-
on
glassoffcross-
on
on
High Tide
/ height (m)
11:49PM
1.49
10:42AM
2.16
12:43AM
1.53
11:30AM
2.17
1:35AM
1.55
12:19PM
2.13
2:27AM
1.55
1:10PM
2.04
3:19AM
1.54
2:03PM
1.89
4:12AM
1.54
3:00PM
1.70
5:04AM
1.55
Low Tide
/ height (m)
6:29PM
-0.17
6:00AM
0.35
7:17PM
-0.22
6:51AM
0.37
8:06PM
-0.24
7:43AM
0.37
8:56PM
-0.22
8:38AM
0.38
9:45PM
-0.18
9:37AM
0.38
10:35PM
-0.12
10:42AM
0.38
11:26PM
-0.05
11:55AM
0.36
Wed
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Sunrise--7:39--7:41--7:41--7:43--7:43--7:45--7:46
Sunset4:30--4:30--4:30--4:30--4:30--4:30--4:30--
cloud
rain showers
light rain
light rain
heavy rain
light rain
light rain
rain showers
light rain
light rain
mod rain
rain showers
rain showers
part cloud
mod rain
heavy rain
heavy rain
cloud
mod rain
heavy rain
heavy rain
Rain (mm)
-13311224227131-62834-71215
Temp. °C9881012121211111111131110111212991312
Feels °C (?)863789757676673557758
  • 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 12 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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