Surf Forecasts:
Seaside Cove surf forecast from 21 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 2AM (local time) - 2ft (0.6m), 18s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 11PM (local time) - 2ft (0.6m), 18s period, WSW swell with 214 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 8AM (local time) - 3ft (0.9m), 8s 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 Saturday (Aug 22) at 8AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 4s. 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 0.6m 18s and forecast to arrive on Monday (Aug 24) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Saturday (Aug 22) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 22nd Aug) | 3ft (0.9m) 8s |
| Best Surf | 2AM (Tue 25th Aug) | 2ft (0.6m) 18s |
| Most Powerful | 11PM (Mon 24th Aug) | 2ft (0.6m) 18s |
Table - best surf conditions forecast for Seaside Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer at Seaside Cove over the next couple of weeks.
Straight up, the first week is a write-off. We’re looking at a stretch from Friday, August 21st right through to Saturday, September 5th where the surf is mostly small, messy, or just plain poor. There are a few mornings that are technically 'marginal', but honestly, you’d be better off polishing your board than paddling out. The combined wave energy is weak to moderate for most of that time, hovering between 92 and 278, and the winds are cross or cross-onshore, killing any chance of clean lines. The water temp sits around 58°, which is about normal for this time of year, nothing wild.
There’s only one window that gets my heart beating a bit faster, and it’s a long-range promise. On the morning of Friday, September 4th, things finally look lined up. We’ve got swell at 5 ft from the WNW with a period of 9 seconds and a solid 487 of combined wave energy. The wind is from the NNE at 9 mph, which is a clean cross-offshore breeze, and the description says 'clean'. That’s the standout of the entire 16-day window – a small but punchy combo that’ll make the point and reef sections work, especially for the experienced crew. It’s a beginner, consistent spot that’s exposed to the NW, and it can get a bit busy sometimes, but for that one morning, it’ll be worth the company. After that, it fades back into weak SW slop.
So yeah, one good morning to aim for, and a whole lot of flat or choppy water before it. Hang in there.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 13°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Mon afternoon, min 14°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 8 | W 10 | W 10 | WNW 8 | WNW 8 | SW 18 | WNW 8 | WNW 7 | WSW 18 | SW 18 | SW 18 | WSW 18 | SW 17 | SW 17 | WSW 16 | SW 16 | SW 16 | SW 16 | W 8 | W 8 | WNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 160 | 122 | 88 | 103 | 82 | 84 | 65 | 55 | 133 | 81 | 155 | 207 | 147 | 137 | 177 | 125 | 122 | 124 | 135 | 114 | 77 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross-off | cross-on | cross | cross-off | cross | cross | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross | cross | on | glassy |
High Tide | 9:31AM1.09m | 7:39PM1.51m | 10:42AM1.15m | 8:45PM1.51m | 11:27AM1.21m | 9:45PM1.56m | 12:00PM1.26m | 10:35PM1.61m | 12:27PM1.33m | 11:20PM1.66m | 12:53PM1.39m | 00:00AM1.69m | 1:18PM1.46m | 00:40AM1.69m | |||||||
Low Tide | 2:41PM0.44m | 4:47AM0.10m | 4:06PM0.45m | 5:43AM0.06m | 5:14PM0.42m | 6:28AM0.03m | 6:06PM0.39m | 7:06AM-0.00m | 6:49PM0.34m | 7:39AM-0.02m | 7:28PM0.30m | 8:09AM-0.03m | 8:07PM0.24m | ||||||||
 | |  | |  | | | |  | | | | | | |  | | | | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 8:14 | — | — | 8:12 | — | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 14 | 17 | 17 | 15 | 17 | 17 | 15 | 18 | 19 | 15 | 18 | 18 | 14 | 16 | 16 | 15 | 16 | 17 | 15 |
Feels °C | 14 | 15 | 13 | 15 | 13 | 14 | 16 | 15 | 13 | 16 | 16 | 13 | 16 | 17 | 14 | 15 | 14 | 14 | 14 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | W 10 | W 10 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 6 | WNW 5 | SW 18 | NW 6 | WNW 6 | WNW 7 | WNW 7 | W 7 | SW 16 | W 7 | W 8 | W 8 | WNW 7 |
| kJ | 160 | 122 | 88 | 103 | 82 | 78 | 65 | 55 | 28 | 19 | 155 | 34 | 21 | 47 | 55 | 37 | 122 | 23 | 135 | 114 | 77 |
Swell 2 Height (m) Direction Period (s) | SW 14 | NW 8 | NW 8 | SW 13 | SW 13 | SSW 5 | SSW 5 | WSW 16 | WSW 18 | SW 18 | WNW 7 | WSW 18 | SW 17 | SW 17 | WSW 16 | SW 16 | W 7 | SW 16 | SW 16 | W 12 | WSW 12 |
| kJ | 72 | 46 | 51 | 43 | 27 | 10 | 5 | 25 | 133 | 81 | 10 | 207 | 147 | 137 | 177 | 125 | 26 | 124 | 85 | 69 | 47 |
Swell 3 Height (m) Direction Period (s) | W 13 | SW 14 | SW 13 | WSW 18 | WSW 18 | SW 18 | SW 13 | WSW 20 | WNW 8 | WNW 7 | W 10 | WNW 7 | W 16 | WSW 16 | WSW 15 | WSW 13 | WSW 13 | WSW 12 | WSW 13 | SW 15 | SW 15 |
| kJ | 14 | 72 | 46 | 30 | 31 | 84 | 27 | 37 | 21 | 18 | 8 | 10 | 47 | 50 | 71 | 59 | 57 | 49 | 55 | 76 | 75 |
Wind waves Height (m) Direction Period (s) | — | SW 3 | SSW 3 | SW 4 | SW 4 | — | — | NW 2 | — | NW 6 | NW 5 | — | — | — | — | — | SSW 4 | SW 4 | — | — | — |
| kJ | — | 1 | 2 | 4 | 16 | — | — | 1 | — | 30 | 21 | — | — | — | — | — | 10 | 4 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 104 | 104 | 104 | 104 | 104 | 0 | 66 | 269 | 0 | 99 | 409 | 0 | 34 | 467 | 0 | 66 | 409 | 66 | 104 | 155 | 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.
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