
Surf Forecasts:
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 Type | Time (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 ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 14°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryLight 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 | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | WNW 10 | SW 13 | NW 6 | WNW 13 | WNW 12 | WNW 12 | SW 18 | SW 17 | WNW 8 | WNW 9 | WNW 9 | SW 16 | SW 15 | SW 14 | SW 14 | W 9 | SW 14 | WNW 8 | SW 19 | SW 18 | SW 17 |
Wave Graph | |||||||||||||||||||||
78 | 62 | 34 | 135 | 192 | 193 | 192 | 190 | 230 | 313 | 266 | 287 | 220 | 211 | 164 | 190 | 134 | 122 | 93 | 79 | 75 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | ||||||||
6:43 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | |
— | 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 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | NW 6 | WNW 7 | WNW 12 | WNW 12 | WNW 11 | NW 7 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | W 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 |
78 | 55 | 34 | 57 | 192 | 193 | 164 | 63 | 224 | 313 | 266 | 176 | 183 | 145 | 110 | 190 | 134 | 122 | 93 | 72 | 66 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | WNW 9 | WNW 13 | NW 7 | NW 6 | WNW 6 | WNW 10 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 17 |
63 | 62 | 29 | 135 | 49 | 42 | 33 | 110 | 230 | 216 | 258 | 287 | 220 | 211 | 164 | 164 | 119 | 87 | 61 | 61 | 75 | |
Swell 3 Height (m) Direction Period (s) | NW 4 | WSW 18 | SW 13 | W 8 | SW 19 | SW 17 | SW 18 | SW 17 | WNW 10 | — | WNW 12 | WNW 11 | S 9 | SSW 4 | SSW 5 | WSW 21 | WSW 20 | WSW 19 | SW 19 | SW 18 | SW 13 |
5 | 32 | 44 | 12 | 93 | 97 | 192 | 190 | 75 | — | 29 | 40 | 2 | 2 | 5 | 42 | 38 | 71 | 92 | 79 | 60 | |
Wind waves Height (m) Direction Period (s) | — | NW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 5 | SW 4 | — | — | — | — |
— | 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 12 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 269 | 0 | 34 | 155 | 4 | 244 | 662 | 0 | 0 | 104 | 0 | 4 | 0 | 0 | 104 | 104 | 0 | 0 | 1016 | 0 |
Best forecast wave conditions in North Oregon | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.










