Surf Forecasts:
State Line surf forecast from 20 Aug 2026:
- Best quality surf: Sunday 23 Aug, 5PM (local time) - 10ft (3.0m), 7s period, NW swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 5PM (local time) - 10ft (3.0m), 7s period, NW swell with 929 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 8PM (local time) - 2.5ft (0.8m), 15s period with SSW swell.
Best Forecast Surf Conditions for State Line this week:
The surf forecast for State Line over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 8PM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.9m and 12s. Another secondary swell of 1.7m and 6s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at State Line in the next 16 days are 3.0m 7s and forecast to arrive on Sunday (Aug 23) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 19th Aug) | 2.5ft (0.8m) 15s |
| Best Surf | 5PM (Sun 23rd Aug) | 10ft (3.0m) 7s |
| Most Powerful | 5PM (Sun 23rd Aug) | 10ft (3.0m) 7s |
Table - best surf conditions forecast for State Line over the next 16 days.
The Lowdown
Alright mate, Rusty here. Let’s see what’s cooking.
The outlook is mostly quiet for the first part of the 16 days, with a long stretch of small, marginal surf. The first real standout shows up later, so you’ll need to be patient. Water temp is about 15°, which is pretty normal for this time of year, nothing unusual.
From Wednesday the 19th through Monday the 24th of August, it’s a mix of small, short-period swell and cross-shore breezes. Wednesday morning has a 0.9m WNW swell with a 12-second period, but the combined energy is only 689, which is moderate, and the cross wind messes up the surface. Not worth getting wet for.
The big moment comes Sunday the 23rd of August afternoon. State Line gets a 3.0m NW swell, with cross-offshore winds from the NNW at 30 km/h. The combined energy is a strong 1400, and the conditions are clean. That’s a big one – over 2.5m – so it’s experts only. The period is short at 8 seconds, so it’ll be a bit lumpy but powerful. The offshore wind will help shape it up.
Monday the 24th of August afternoon drops to 1.5m from the NW, with glassy conditions and light winds. That’s a nice intermediate session, clean and mellow, with combined energy at 488.
After that, the swell goes tiny from Tuesday the 25th through the end of the month, with mostly cross-shore winds and weak energy readings between 300 and 500. Nothing to get excited about.
Another big one shows up on Friday the 28th of August afternoon – 3.0m NW swell, 20 km/h cross winds, combined energy 1207. Again, short period at 7 seconds and cross winds, so it’s big but not clean. Only for the brave. The same story repeats on Monday the 31st of August afternoon, with another 3.0m NW swell and 1239 energy.
The last week is mostly tiny, poor surf with energy under 500 and cross-onshore breezes. The best of the leftovers is Thursday the 3rd of September afternoon, with a 1.3m WNW swell, 10-second period, light cross-shore wind, and combined energy of 491. It’s marginal, but if you’re keen, it’s the only thing rideable.
State Line is a beach break, and with those big, short-period swells and cross winds, it might be more fun for kite surfers than paddle surfers on the big days. Crowds are sometimes around, but the standout sessions are worth it.
So, bottom line: Sunday the 23rd of August afternoon is the winner – big, clean, and for experts only. Monday the 24th afternoon is a good intermediate option. The rest is mostly a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed afternoon, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 13°C on Mon night). Winds decreasing (fresh winds from the NNW on Sun afternoon, calm by Mon morning). | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | NW 8 | NW 8 | NW 7 | NW 7 | NW 8 | NW 8 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph | ||||||||||||||||||||
263 | 309 | 263 | 229 | 229 | 180 | 143 | 98 | 98 | 99 | 110 | 194 | 929 | 392 | 297 | 307 | 181 | 270 | 264 | 163 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-on | cross | glassy | cross-on | cross-on | glassy | on | cross | off | cross-off | cross-off | glassy | cross-on | cross-on | glassy | cross-on | glassy | glassy |
High Tide | 4:56PM1.95m | 7:06AM1.33m | 5:48PM1.89m | 8:46AM1.35m | 6:52PM1.85m | 9:57AM1.42m | 8:00PM1.86m | 10:41AM1.49m | 9:00PM1.92m | 11:14AM1.56m | 9:51PM1.99m | 11:42AM1.64m | 10:35PM2.05m | |||||||
Low Tide | 00:24AM0.34m | 11:24AM1.08m | 1:36AM0.32m | 12:39PM1.19m | 2:44AM0.27m | 2:04PM1.20m | 3:40AM0.18m | 3:13PM1.14m | 4:26AM0.08m | 4:04PM1.04m | 5:04AM-0.00m | 4:47PM0.92m | ||||||||
— | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | |
8:10 | — | — | 8:09 | — | — | 8:07 | — | — | 8:07 | — | — | 8:05 | — | — | 8:04 | — | — | 8:01 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 13 | 15 | 15 | 13 | 14 | 14 | 13 | 16 | 16 | 15 | 22 | 24 | 22 | 16 | 16 | 13 | 15 | 16 | 15 |
Feels °C | 15 | 13 | 15 | 14 | 13 | 14 | 13 | 12 | 15 | 14 | 14 | 18 | 18 | 19 | 16 | 15 | 13 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | NW 6 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | NW 8 | NNW 8 | NW 8 | NW 8 | NW 8 | SW 19 | SW 19 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | SW 16 | NW 6 |
229 | 80 | 263 | 206 | 164 | 150 | 84 | 72 | 59 | 84 | 110 | 130 | 224 | 392 | 297 | 188 | 118 | 85 | 264 | 68 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | WNW 12 | NW 6 | NW 7 | NW 7 | NNW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | SSW 15 | SSW 12 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | WSW 15 | SW 16 |
263 | 288 | 56 | 69 | 50 | 70 | 110 | 77 | 74 | 52 | 42 | 43 | 29 | 111 | 255 | 307 | 181 | 270 | 73 | 163 | |
Swell 3 Height (m) Direction Period (s) | SW 21 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 16 | SSW 12 | SSW 15 | SSW 12 | SSW 14 | SSW 14 | S 14 | SSW 13 | SSW 13 | W 14 |
18 | 309 | 239 | 229 | 229 | 180 | 143 | 98 | 98 | 99 | 95 | 28 | 44 | 29 | 70 | 69 | 106 | 60 | 58 | 101 | |
Wind waves Height (m) Direction Period (s) | NW 6 | — | — | — | — | — | — | — | — | — | — | NW 7 | NW 7 | — | — | — | — | — | NW 6 | — |
303 | — | — | — | — | — | — | — | — | — | — | 194 | 929 | — | — | — | — | — | 91 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 494 | 224 | 14 | 29 | 35 | 14 | 29 | 29 | 14 | 427 | 35 | 14 | 410 | 224 | 14 | 35 | 14 | 14 | 29 | 29 |
Best forecast wave conditions in South Oregon | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the State Line Surf forecast
The above surf forecast table for State Line provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at State Line can be found by selecting the local surf guide option on the grey menu. Our State Line 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 (State Line) 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 State Line 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.
Are you planning a vacation in South Oregon? If you are looking for accommodation near State Line, camping, hotels and condos and appartments in South Oregon, consider staying in Grants Pass which is 89 km (55 miles) away.











