
Surf Forecasts:
Cape Sebastian surf forecast from 14 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 8PM (local time) - 6ft (1.9m), 8s period, NW swell with offshore winds.
- Most powerful swell: Sunday 20 Sep, 8PM (local time) - 2.5ft (0.8m), 19s period, SW swell with 414 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 11PM (local time) - 5ft (1.5m), 6s period with NW swell.
Best Forecast Surf Conditions for Cape Sebastian this week:
The surf forecast for Cape Sebastian over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 11PM. The primary swell is predicted to be 1.5m and 6s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.5m and 17s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cape Sebastian in the next 16 days are 0.8m 19s and forecast to arrive on Sunday (Sep 20) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 14th Sep) | 5ft (1.5m) 6s |
| Best Surf | 8PM (Wed 16th Sep) | 6ft (1.9m) 8s |
| Most Powerful | 8PM (Sun 20th Sep) | 2.5ft (0.8m) 19s |
Table - best surf conditions forecast for Cape Sebastian over the next 16 days.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 13°C on Mon night). Winds decreasing (strong winds from the NNW on Tue afternoon, calm by Wed night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Sat afternoon, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | NW 8 | NW 6 | NW 7 | NW 7 | NW 6 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | SW 20 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | NNW 7 | SW 18 |
Wave Graph | |||||||||||||||||||||
167 | 248 | 184 | 162 | 312 | 178 | 189 | 386 | 371 | 311 | 270 | 224 | 201 | 303 | 303 | 215 | 252 | 370 | 314 | 392 | 370 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | glassy | on | on | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 2:13PM2.77m | 3:15AM2.25m | 2:45PM2.69m | 4:09AM2.10m | 3:20PM2.59m | 5:15AM1.97m | 4:00PM2.48m | 6:40AM1.89m | 4:52PM2.38m | 8:17AM1.91m | 6:00PM2.31m | 9:24AM1.99m | 7:17PM2.31m | ||||||||
Low Tide | 8:04AM1.05m | 8:56PM0.57m | 8:37AM1.25m | 9:42PM0.63m | 9:11AM1.43m | 10:34PM0.72m | 9:47AM1.58m | 11:34PM0.81m | 10:36AM1.71m | 00:45AM0.85m | 11:55AM1.79m | 1:56AM0.84m | 1:34PM1.78m | 2:54AM0.78m | |||||||
6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | |
— | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:20 | — | — | 7:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 15 | 18 | 18 | 16 | 18 | 20 | 18 | 16 | 16 | 14 | 16 | 17 | 15 | 17 | 18 | 15 | 17 | 18 | 15 |
Feels °C | 13 | 13 | 9 | 12 | 12 | 10 | 14 | 15 | 14 | 15 | 15 | 15 | 14 | 15 | 12 | 15 | 16 | 13 | 14 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 8 | SW 13 | NW 7 | SW 17 | SW 16 | SW 16 | NW 7 | SW 16 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | SW 19 | NW 8 | NW 9 | SW 18 | NW 6 | SW 18 | SW 18 | SW 18 |
167 | 84 | 184 | 145 | 122 | 119 | 189 | 121 | 371 | 311 | 270 | 224 | 201 | 303 | 122 | 176 | 252 | 64 | 314 | 392 | 370 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 17 | SW 17 | SW 12 | WNW 12 | WNW 12 | SW 16 | WNW 11 | SW 15 | SW 14 | SW 14 | SW 14 | SW 20 | SW 14 | SW 19 | SW 18 | SSW 13 | SW 18 | SSW 13 | SSW 13 | SSW 12 |
109 | 106 | 147 | 38 | 29 | 56 | 88 | 24 | 83 | 71 | 72 | 72 | 186 | 103 | 303 | 215 | 68 | 370 | 34 | 33 | 30 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | WNW 15 | SW 13 | WNW 13 | SW 12 | SW 12 | WNW 11 | SSW 19 | SSW 18 | SW 21 | SSW 16 | SW 21 | SW 14 | S 11 | NW 10 | SSW 13 | — | SSW 13 | WSW 13 | SW 12 | S 10 |
81 | 42 | 78 | 34 | 37 | 23 | 25 | 74 | 61 | 116 | 53 | 117 | 74 | 2 | 36 | 70 | — | 68 | 17 | 6 | 2 | |
Wind waves Height (m) Direction Period (s) | — | NW 6 | — | NW 7 | NW 6 | NW 7 | — | NW 7 | — | — | — | — | — | NW 8 | — | — | NW 8 | — | NW 6 | NNW 7 | NW 7 |
— | 248 | — | 162 | 312 | 178 | — | 386 | — | — | — | — | — | 196 | — | — | 149 | — | 98 | 380 | 240 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 271 | 630 | 0 | 63 | 258 | 0 | 384 | 143 | 0 | 61 | 61 | 0 | 0 | 258 | 0 | 0 | 48 | 0 | 61 | 63 | 48 |
Best forecast wave conditions in South Oregon | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Cape Sebastian Surf forecast
The above surf forecast table for Cape Sebastian provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cape Sebastian can be found by selecting the local surf guide option on the grey menu. Our Cape Sebastian 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 (Cape Sebastian) 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 Cape Sebastian 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.
Cape Sebastian is 91 km (57 miles) from Grants Pass. If you plan a vacation in South Oregon, look for hotels and other accommodation in Grants Pass. Grants Pass has rooms for a wide range of budgets as well as car hire and transport links.










