Surf Forecasts:
State Line surf forecast from 13 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 5PM (local time) - 10ft (3.0m), 7s period, NW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 5PM (local time) - 10ft (3.0m), 7s period, NW swell with 764 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8AM (local time) - 4.5ft (1.4m), 9s period with WNW 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 Sunday (Sep 13) at 8AM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.8m and 14s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-offshore 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 Tuesday (Sep 15) 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 1.1m 8s period and expected on Friday (Sep 18) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 13th Sep) | 4.5ft (1.4m) 9s |
| Best Surf | 5PM (Tue 15th Sep) | 10ft (3.0m) 7s |
| Most Powerful | 5PM (Tue 15th Sep) | 10ft (3.0m) 7s |
Table - best surf conditions forecast for State Line over the next 16 days.
The Lowdown
Alright, let's talk surf. State Line is looking like a bit of a waiting game for the next week or so. There's a lot of chop and cross-wind in the forecast, but a couple of windows open up if you're patient.
Starting off Sunday the 13th, we've got a 5ft swell from the WNW early with a light offshore wind. It's got moderate energy (518), but the period is short at 8 seconds. The afternoon gets messy with a 13 mph cross-shore wind. Not your best bet.
Monday the 14th is a write-off. Tuesday the 15th afternoon has a 10ft NW swell with a 22 mph cross-off wind. The energy is solid (935), but that size is for experienced surfers only. It's clean, but the 7-second period means it'll be a bit lumpy.
Your first real chance is Thursday the 17th afternoon. The wind goes glassy, just 3 mph from the SW, offshore. You've got a 5ft NW swell with an 8-second period. Moderate energy (518). The conditions are described as very good. That's your afternoon.
Then it gets small. Friday the 18th afternoon is another glassy session, but the swell is tiny at 2ft from the SW with a very long 19-second period. Moderate energy (576). It’s clean, but you'll be scratching for waves.
It stays small and messy until Thursday the 24th. Thursday morning the 24th is the standout. Glassy, with a 7ft WNW swell and an 11-second period. The combined energy is strong (1150). This is excellent for experienced surfers. A proper session.
The following Friday the 25th holds some size, but the wind is cross-on, and Saturday the 26th afternoon goes glassy again with a 5ft NW swell and a 9-second period. Clean, but not as powerful.
So, to sum it up: target Thursday afternoon the 17th for a clean, fun-sized wave, and Thursday morning the 24th for a bigger, glassy, powerful swell that’s for the experienced crew. The rest is a battle with the wind.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat night. Very mild (max 19°C on Mon afternoon, min 13°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 14 | WNW 8 | WNW 9 | NW 9 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | SW 20 | SW 19 | SW 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 297 | 244 | 381 | 293 | 239 | 643 | 279 | 313 | 764 | 396 | 429 | 629 | 337 | 247 | 266 | 216 | 239 | 369 | 369 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross | off | cross | cross | glassy | cross | cross-off | off | cross-on | cross | cross | on | glassy | glassy | on | glassy | glassy |
High Tide | 1:30AM1.97m | 1:36PM2.18m | 2:19AM1.84m | 2:07PM2.15m | 3:09AM1.70m | 2:39PM2.08m | 4:05AM1.56m | 3:14PM1.99m | 5:13AM1.45m | 3:55PM1.88m | 6:39AM1.39m | 4:51PM1.79m | |||||||
Low Tide | 7:29AM0.30m | 8:08PM0.06m | 8:02AM0.52m | 8:52PM0.08m | 8:36AM0.73m | 9:38PM0.13m | 9:11AM0.92m | 10:30PM0.22m | 9:52AM1.08m | 11:32PM0.30m | 10:49AM1.19m | 00:45AM0.34m | |||||||
 |  | |  | | | | | | | | | | |  | | | |  | |
 | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | — | 7:30 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:22 | — | — | 7:21 | — |
mm | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 17 | 16 | 18 | 19 | 16 | 18 | 19 | 16 | 17 | 20 | 16 | 15 | 16 | 14 | 16 | 16 | 13 |
Feels °C | 12 | 14 | 14 | 13 | 14 | 13 | 13 | 14 | 12 | 12 | 15 | 18 | 15 | 14 | 15 | 13 | 15 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | NW 10 | WNW 8 | WNW 9 | NW 9 | SSW 13 | SW 13 | NW 7 | SW 17 | SW 16 | SW 16 | NW 8 | SW 16 | NW 8 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 | NW 8 |
| kJ | 177 | 244 | 381 | 293 | 116 | 84 | 279 | 186 | 89 | 86 | 328 | 121 | 337 | 247 | 266 | 216 | 180 | 135 | 132 |
Swell 2 Height (m) Direction Period (s) | W 10 | SW 14 | SW 13 | SW 13 | SW 18 | SW 17 | SW 17 | NW 13 | SW 12 | NW 12 | SW 16 | SSW 19 | SW 14 | WNW 10 | SSW 16 | SSW 16 | SW 20 | SW 19 | SW 19 |
| kJ | 154 | 189 | 215 | 140 | 109 | 147 | 188 | 44 | 37 | 37 | 122 | 73 | 72 | 39 | 90 | 146 | 239 | 369 | 369 |
Swell 3 Height (m) Direction Period (s) | SW 14 | NW 9 | SW 20 | SW 19 | NW 15 | SW 9 | SW 12 | SW 12 | SSW 21 | SW 12 | NW 11 | WSW 24 | SSW 18 | SW 21 | SW 21 | SW 21 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 297 | 83 | 60 | 177 | 54 | 3 | 39 | 38 | 45 | 23 | 33 | 54 | 104 | 160 | 162 | 162 | 123 | 72 | 71 |
Wind waves Height (m) Direction Period (s) | S 6 | SSE 3 | NW 2 | — | NW 8 | NW 7 | — | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | — | — | — | — | — | — | — |
| kJ | 1 | 2 | 1 | — | 239 | 643 | — | 313 | 764 | 396 | 429 | 629 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 14 | 596 | 597 | 14 | 322 | 592 | 14 | 388 | 225 | 14 | 29 | 29 | 14 | 28 | 28 | 14 | 302 | 28 | 14 |
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.
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