
Surf Forecasts:
Seaside Cove surf forecast from 5 Sep 2026:
- Best quality surf: Friday 11 Sep, 8PM (local time) - 5ft (1.6m), 9s period, WNW swell with glassy winds.
- Most powerful swell: Friday 11 Sep, 11AM (local time) - 5.5ft (1.7m), 9s period, NW swell with 513 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 11PM (local time) - 2ft (0.6m), 16s 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 Saturday (Sep 05) at 11PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.9m and 9s. 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 1.7m 9s and forecast to arrive on Friday (Sep 11) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 5th Sep) | 2ft (0.6m) 16s |
| Best Surf | 8PM (Fri 11th Sep) | 5ft (1.6m) 9s |
| Most Powerful | 11AM (Fri 11th Sep) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Seaside Cove over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s coming up for Seaside Cove. It’s all on the table here, and we’ve got a bit of a mixed bag, but there’s a couple of windows that’ll get you out there.
Right off the bat, the water’s sitting at 61° – that’s about average for the time of year, no real surprises there. The first real chance to get wet comes in on Saturday the 5th of September, Saturday morning. It’s glassy – dead calm – with a 2ft swell from the SW, a long 17-second period. That’s a proper groundswell, and it’s got some decent energy behind it (336). The issue is, it’s a point break, reef, and beach setup, and with that long period, it’ll be a bit too straight for the beach, but the point and reef should have some clean lines. It’s a consistent spot, so you’ll get waves. The wind is zero, so it’ll be clean as a whistle. The crowd can be around sometimes, but early morning, you’ll find a few.
The weekend doesn’t offer much else that’s stellar. Sunday the 6th of September, the morning is cross-offshore with a light NNE breeze, clean, same 2ft swell from the SW, but the period drops to 16 seconds. Energy is still moderate (271). The afternoon gets a cross-onshore, so it’ll get a bit messy. The rest of the first week and into the second is pretty ordinary. The swell stays small, mostly under 3ft, with periods dropping into the 8 to 14-second range, and the wind is often cross or cross-onshore, so it’s a bit of a chop fest. The combined energy values range from a low 99 up to 415, but the conditions are just not there for a good session.
Now, here’s the standout. Saturday the 19th of September, Saturday morning. That’s the one to circle. You’ve got a 2ft swell from the WSW, but the period is a massive 19 seconds – that’s very long-period groundswell. The energy is moderate (374), but the real story is the wind: NNE at 9 mph, and it’s cross-offshore. The report says “clean”. For a spot like this, that’s the goldilocks window. The break is exposed, and the optimum swell direction is NW, so this WSW swell is a bit off-angle, but with that long period and clean conditions, it’ll wrap in nicely. It’s a consistent spot, and the crowd might be there sometimes, but early morning, it’ll be worth it. This is the best on offer across the whole 16 days – a real stand-out session for the experienced surfer who knows the reef and point.
The Sunday the 20th of September, Sunday morning, has a 2ft swell from the WSW again with an 18-second period, but the wind is more cross-shore at 9 mph, and the energy is a bit higher (387), but the conditions are rated as marginal. The afternoon sees a jump in size to 4ft from the W, but the period drops to 9 seconds, and the wind gets stronger (12 mph cross-shore), so it’s a bit of a choppy mess.
There is a gap at the start of the forecast period from now until Saturday the 5th of September. The first real clean window is Saturday morning, and then it’s a bit of a wait until the 19th for the real standout. There’s a few days in between with surfable waves, but nothing that’ll get you racing out the door. The swell is mostly small, and the wind is often not in your favour. For a consistent spot like Seaside Cove, it’s normal to have quiet runs like this, but the forecasts can turn.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 17°C on Sun morning, min 13°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Wed afternoon, min 12°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WNW 6 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | SW 17 | SW 17 | NW 9 | WNW 9 | WNW 9 |
Wave Graph | |||||||||||||||||||||
175 | 211 | 203 | 151 | 178 | 134 | 102 | 102 | 99 | 63 | 62 | 52 | 133 | 189 | 330 | 218 | 198 | 230 | 513 | 440 | 331 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | off | cross | cross-on | glassy | cross | on | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross-on | cross | cross-on | cross-on | on | glassy |
High Tide | 8:55AM1.17m | 7:23PM1.70m | 10:07AM1.25m | 8:42PM1.72m | 10:57AM1.35m | 9:53PM1.76m | 11:38AM1.45m | 10:55PM1.79m | 12:15PM1.55m | 11:50PM1.80m | 12:48PM1.65m | 00:41AM1.76m | 1:21PM1.72m | 1:29AM1.70m | |||||||
Low Tide | 2:28PM0.42m | 4:24AM-0.02m | 4:00PM0.40m | 5:27AM-0.05m | 5:16PM0.35m | 6:20AM-0.07m | 6:18PM0.27m | 7:05AM-0.08m | 7:11PM0.20m | 7:46AM-0.06m | 7:59PM0.13m | 8:23AM-0.02m | 8:45PM0.07m | ||||||||
6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | |
— | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:35 | — | |
mm | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 17 | 17 | 15 | 16 | 16 | 15 | 15 | 17 | 14 | 19 | 20 | 15 | 17 | 17 | 15 | 15 | 16 | 14 |
Feels °C | 16 | 15 | 14 | 15 | 14 | 15 | 14 | 14 | 15 | 13 | 14 | 12 | 17 | 17 | 14 | 16 | 16 | 15 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 8 | NW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 11 | WNW 10 | WNW 10 | WNW 6 | WNW 7 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | WNW 7 | NW 9 | WNW 9 | WNW 9 |
147 | 124 | 88 | 61 | 67 | 42 | 40 | 39 | 91 | 57 | 55 | 52 | 57 | 189 | 330 | 218 | 198 | 111 | 513 | 440 | 331 | |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | WNW 11 | SW 14 | WNW 7 | SW 13 | WNW 9 | WNW 13 | NW 7 | SW 16 | SW 18 | SW 17 | WNW 10 | SW 16 | SW 16 | SW 16 |
175 | 211 | 203 | 151 | 178 | 134 | 102 | 71 | 99 | 18 | 62 | 29 | 133 | 57 | 69 | 192 | 190 | 72 | 211 | 258 | 251 | |
Swell 3 Height (m) Direction Period (s) | W 14 | WNW 14 | WNW 12 | WNW 13 | W 13 | WNW 12 | W 12 | SW 14 | WNW 7 | SW 13 | NW 6 | SW 13 | WNW 9 | SW 19 | SW 19 | — | — | SW 17 | SSW 12 | SSW 12 | SSW 10 |
14 | 41 | 52 | 59 | 87 | 49 | 72 | 102 | 18 | 63 | 6 | 44 | 25 | 93 | 96 | — | — | 230 | 15 | 27 | 10 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NW 5 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 19 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 34 | 0 | 34 | 1017 | 0 | 66 | 359 | 0 | 34 | 469 | 0 | 34 | 155 | 0 | 242 | 264 | 138 | 166 | 104 | 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.










