Surf Forecasts:
Seaside Cove surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 6 Aug, 8PM (local time) - 3ft (0.9m), 8s period, WNW swell with glassy winds.
- Most powerful swell: Thursday 6 Aug, 2PM (local time) - 3.5ft (1.0m), 8s period, WNW swell with 123 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 8PM (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 Thursday (Aug 06) at 8PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 14s. 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 1.0m 8s and forecast to arrive on Thursday (Aug 06) at 2PM. 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+) | 8PM (Thu 6th Aug) | 3ft (0.9m) 8s |
| Best Surf | 8PM (Thu 6th Aug) | 3ft (0.9m) 8s |
| Most Powerful | 2PM (Thu 6th Aug) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for Seaside Cove over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and knots.
To be honest, the next week and a half is a total write-off. From Thursday the 6th of August all the way to Monday the 17th of August, you’re looking at a big fat zero. The swell is tiny, the wind is rubbish – mostly cross or cross-onshore – and the wave energy is weak, with combined energy numbers stuck in the low hundreds. The forecast just keeps saying “poor surf conditions.” It’s a tough stretch, but it happens.
Then, out of nowhere, Tuesday the 18th of August finally shows some promise. Seaside Cove is the only break we’ve got, and it turns on. The morning and afternoon are both glassy, with a light offshore breeze. That’s the key. The swell is a long-period groundswell from the West, about 3 to 4ft, with a period of 13 to 14 seconds. That’s real energy, with combined swell energy jumping to 436 and 455. That’s the standout window. Water temp is around 61°, which is normal for the time of year. The swell direction is West, and the optimum for this spot is NW, so it’s not perfect, but with those glassy conditions and solid size, it’ll be the best we see. This break is consistent and beginner-friendly, but it’s exposed and can get crowded, so expect some company. At 3ft, it’s a fun size for everyone.
The next morning, Wednesday the 19th, still has some waist-high waves around 4ft from the West, but the wind goes cross-shore and the energy drops. It’s still worth a look if you missed Tuesday, but it won’t be as clean. After that, it fades back into small, weak, and choppy junk for the rest of the week.
So here’s the call: don’t even bother for the first 12 days. Circle Tuesday the 18th of August on your calendar – that’s the day to get wet. Enjoy it while it’s glassy.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Thu morning, min 13°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Sun afternoon, min 13°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 | WNW 8 | WNW 7 | WNW 7 | NW 7 | NW 7 | NW 6 | NW 7 | NW 6 | SW 16 | SW 16 | NW 6 | SW 15 | W 10 | SW 14 | SW 14 | WNW 8 | SW 18 | SW 18 | SW 18 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 123 | 106 | 70 | 62 | 77 | 55 | 42 | 55 | 49 | 64 | 38 | 56 | 34 | 53 | 33 | 53 | 75 | 83 | 80 | 111 | 88 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 6:38PM1.76m | 8:54AM1.09m | 7:40PM1.79m | 10:18AM1.16m | 8:48PM1.84m | 11:19AM1.26m | 9:54PM1.90m | 12:07PM1.36m | 10:55PM1.95m | 12:48PM1.45m | 11:52PM1.97m | 1:26PM1.54m | 00:44AM1.94m | ||||||||
Low Tide | 1:19PM0.32m | 3:31AM0.04m | 2:25PM0.38m | 4:42AM-0.02m | 3:47PM0.40m | 5:44AM-0.08m | 5:06PM0.39m | 6:39AM-0.13m | 6:14PM0.35m | 7:28AM-0.16m | 7:13PM0.29m | 8:13AM-0.17m | 8:07PM0.23m | ||||||||
 | |  |  | | | | | | | | | | |  | | | | | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — |
 | — | 8:37 | — | — | 8:37 | — | — | 8:35 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 17 | 15 | 16 | 17 | 15 | 16 | 17 | 15 | 16 | 17 | 14 | 16 | 17 | 16 | 16 | 17 | 15 | 15 | 16 | 15 |
Feels °C | 18 | 16 | 15 | 16 | 16 | 14 | 15 | 15 | 14 | 15 | 15 | 12 | 14 | 15 | 16 | 15 | 16 | 14 | 13 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 7 | WNW 7 | NW 7 | NW 7 | NW 6 | NW 7 | NW 6 | NW 6 | WNW 10 | NW 6 | NW 6 | W 10 | WNW 5 | NW 5 | W 12 | WNW 8 | WNW 8 | WNW 7 | WNW 6 |
| kJ | 123 | 106 | 70 | 62 | 77 | 55 | 42 | 55 | 49 | 31 | 18 | 56 | 25 | 53 | 18 | 11 | 27 | 65 | 44 | 42 | 88 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | WNW 11 | WNW 11 | WNW 10 | SW 16 | SW 16 | SW 15 | WNW 8 | SW 14 | WNW 9 | WNW 9 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 |
| kJ | 50 | 48 | 28 | 44 | 42 | 42 | 23 | 38 | 20 | 64 | 38 | 37 | 11 | 33 | 28 | 25 | 58 | 83 | 80 | 111 | 75 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 20 | W 12 | W 15 | SW 18 | SW 18 | SW 13 | SW 12 | SW 12 | WNW 10 | SW 12 | SW 12 | SW 15 | WSW 21 | SW 14 | SW 14 | SW 14 | W 12 | SW 14 | W 13 | W 13 |
| kJ | 5 | 15 | 12 | 17 | 50 | 49 | 25 | 39 | 23 | 19 | 22 | 22 | 34 | 44 | 33 | 53 | 29 | 27 | 54 | 29 | 29 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NW 7 | — | — | NW 6 | — | — | WNW 8 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 35 | — | — | 26 | — | — | 75 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 104 | 376 | 0 | 104 | 662 | 25 | 264 | 264 | 25 | 269 | 1017 | 138 | 888 | 1017 | 25 | 917 | 1017 | 25 | 269 | 1053 | 25 |
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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