
Surf Forecasts:
Seaside Cove surf forecast from 31 Jul 2026:
- Best quality surf: Friday 31 Jul, 2AM (local time) - 2ft (0.6m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 2PM (local time) - 5.5ft (1.7m), 9s period, WNW swell with 490 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 2AM (local time) - 2ft (0.6m), 15s 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 Friday (Jul 31) at 2AM. The primary swell is predicted to be 0.6m and 15s period with a secondary swell of 0.8m 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 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+) | 2AM (Fri 31st Jul) | 2ft (0.6m) 15s |
| Best Surf | 2AM (Fri 31st Jul) | 2ft (0.6m) 15s |
| Most Powerful | 2PM (Thu 6th Aug) | 5.5ft (1.7m) 9s |
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 the cards for the next couple of weeks. I’ll be straight with you – this stretch is a tough one. We’ve got a real dry spell coming up, so if you’re keen to get wet, you’ll have to pick your moments carefully.
The strongest surf we see through the whole period is a late-arriving pulse of energy, but it’s plagued by onshore winds and poor conditions. The real standout is a narrow window on the morning of Sunday, August 9th. That’s the one to circle on the calendar. Otherwise, prepare for a lot of flat, choppy, or just plain messy water.
Let's break it down. We start off with nothing much. Thursday the 30th of July through to Saturday the 1st of August is a write-off at Seaside Cove (beach reef and point). We’re looking at tiny 2ft to 3ft swell from the SW and W, with a long period around 16 seconds, but it’s all cross-on or onshore winds. The water is sitting at 60°, which is about average for the time of year. The energy is weak, with values around 251 (weak energy). The swell is just too small and the wind is junk.
Sunday the 2nd of August offers a little more size, with 5ft swell from the W, but the period drops to a short 9 seconds. The morning session has a chance with a light 6 mph cross-on breeze, but the energy is still only moderate (368). The afternoon sees the wind pick up to 12 mph from the NNW, making it messy and choppy. Not worth it.
Monday the 3rd through Wednesday the 5th of August is a proper gap of no real surf. The swell is mostly 3ft to 4ft with short periods (7-8 seconds), and the wind is either cross or cross-on, keeping things grovelly. The energy is weak to moderate (122-200). This is beach-break territory, and the short period means the waves will be crumbly and weak. For a kite surfer, the steady cross-shore breeze might be interesting, but for a paddle surfer, it’s a no-go.
Thursday the 6th of August sees a jump in size to 5ft-6ft from the WNW, with a period of 9 seconds. The combined energy is now moderate to strong (527 in the morning). The problem is the wind – it’s either a light cross-on or a gentle cross-on, which just won’t clean it up. The wave comment is “poor” or “marginal.” It’s frustrating because there’s power, but it’s not rideable.
Now, here’s the best call. Sunday, August 9th, morning. The swell is 6ft from the WNW, period 10 seconds, with a combined energy of 536 (strong wave energy). The wind is a light onshore from the WNW at 6 mph. While it’s onshore, it’s light, and the swell size is solid. This is the only time the forecast score hits a 2 out of 10, which tells you it’s the best of a bad bunch. The break is exposed and consistent, so it will be working. That 6ft is getting into the “too big for beginners” territory, but for a competent surfer, it’s the best shot at a wave all week. The period is just under the 11-second mark, so it’s not a classic groundswell, but it’s got enough push for a decent wall.
The rest of the second week is a bit of a blur. Monday the 10th of August is back to 4ft and poor. Tuesday the 11th of August shows a tiny 2ft swell with a very long 16-second period, but the energy is moderate (283) and the wind is cross-on. That long period at a beach break is a hassle – it’ll break straight. Wednesday the 12th of August morning has a brief moment of 2ft with a long period (15 seconds) and light cross-shore wind, but it’s small. The afternoon jumps to 5ft with a short 8-second period and a cross-on breeze, making it messy again. The energy is very strong (658), but with those winds, it’s a washing machine. The final days, the 13th and 14th, are all small (2ft-2ft) and cross-shore or cross-on, with no real quality.
So, the bottom line: the whole 16-day window is a challenging stretch. The only real standout is the morning of Sunday, August 9th, at Seaside Cove. It’s not perfect, but it’s the only time the size and wind align enough to give you a proper ride. For the rest, leave the board in the car and wait for the next system.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 19°C on Fri afternoon, min 14°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Tue afternoon, min 14°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | W 8 | W 8 | W 9 | W 9 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | NW 7 | WNW 7 | WNW 8 | WNW 9 | WNW 9 |
Wave Graph | ||||||||||||||||||||
201 | 149 | 136 | 134 | 132 | 102 | 111 | 164 | 286 | 325 | 252 | 147 | 143 | 113 | 91 | 109 | 96 | 347 | 475 | 449 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-on | cross | on | on | glassy | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross |
High Tide | 2:33PM1.41m | 1:32AM1.69m | 3:01PM1.47m | 2:11AM1.63m | 3:28PM1.52m | 2:54AM1.54m | 3:57PM1.58m | 3:42AM1.42m | 4:28PM1.63m | 4:39AM1.29m | 5:03PM1.68m | 5:49AM1.16m | 5:46PM1.73m | |||||||
Low Tide | 9:04PM0.30m | 9:44AM-0.06m | 9:46PM0.27m | 10:14AM-0.03m | 10:29PM0.24m | 10:44AM0.02m | 11:17PM0.21m | 11:15AM0.09m | 00:10AM0.17m | 11:49AM0.17m | 1:10AM0.13m | 12:29PM0.25m | 2:18AM0.09m | |||||||
— | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | |
8:47 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:40 | — | — | 8:39 | — | |
mm | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 18 | 19 | 17 | 16 | 16 | 16 | 16 | 17 | 15 | 16 | 17 | 15 | 23 | 24 | 18 | 24 | 23 | 16 |
Feels °C | 15 | 15 | 16 | 17 | 17 | 15 | 15 | 15 | 15 | 15 | 13 | 14 | 14 | 13 | 20 | 20 | 16 | 21 | 20 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 16 | WNW 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WSW 16 | WNW 7 | WNW 8 | WNW 9 | WNW 9 |
201 | 101 | 116 | 133 | 103 | 78 | 111 | 164 | 286 | 325 | 252 | 147 | 143 | 113 | 91 | 25 | 96 | 347 | 475 | 449 | |
Swell 2 Height (m) Direction Period (s) | WNW 8 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 16 | WSW 16 | SW 12 | WNW 9 | WSW 15 | WSW 15 | SW 14 |
50 | 149 | 136 | 134 | 132 | 102 | 71 | 70 | 67 | 64 | 28 | 27 | 27 | 25 | 25 | 6 | 43 | 21 | 21 | 51 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SSW 11 | — | — | SW 8 | S 8 | W 20 | SW 19 | SW 19 | SW 19 | WSW 18 | WSW 18 | WSW 17 | SW 13 | SW 13 | W 10 | WSW 15 | SW 12 | — | W 21 |
12 | 12 | — | — | 3 | 1 | 8 | 15 | 15 | 14 | 31 | 30 | 30 | 26 | 6 | 2 | 22 | 6 | — | 9 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 3 | — | SW 3 | — | — | — | — | — | — | — | — | — | NW 7 | — | — | — | — |
— | — | — | 1 | — | 3 | — | — | — | — | — | — | — | — | — | 109 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 362 | 0 | 34 | 155 | 66 | 905 | 1016 | 0 | 271 | 1017 | 115 | 34 | 269 | 0 | 25 | 269 | 0 | 99 | 242 | 34 |
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.











