Surf Forecasts:
Rainbow Rocks surf forecast from 19 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 8PM (local time) - 2.5ft (0.8m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 5PM (local time) - 10ft (3.0m), 8s period, NW swell with 1,133 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 Rainbow Rocks this week:
The surf forecast for Rainbow Rocks 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 1.8m and 6s period with a secondary swell of 0.9m and 12s. Another secondary swell of 0.8m and 15s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rainbow Rocks in the next 16 days are 3.0m 8s 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 1.4m 6s period and expected on Tuesday (Aug 25) 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 | 8PM (Wed 19th Aug) | 2.5ft (0.8m) 15s |
| Most Powerful | 5PM (Sun 23rd Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Rainbow Rocks over the next 16 days.
The Lowdown
Alright, let’s break this down for the imperial crew. This is Rusty.
For Rainbow Rocks, it’s a beach and reef break that likes a WNW swell, and honestly, the first week is a bit of a struggle. From Wednesday the 19th through to the weekend, you’re looking at waist to chest-high waves, but the wind is mostly cross or side-shore, putting a bit of texture on the surface. Water temp is about normal for this time of year, nothing wild.
The real standout comes Sunday the 23rd. Morning brings a 6ft swell from the NW with an 8-second period and moderate energy (617). It’s rideable but the wind is cross. The afternoon is where it’s at—clean, offshore-like cross-off winds from the NNW and the swell pushes to 7ft from the NW, period still around 8 seconds, with moderate energy (785). That’s your best day of the first week. Good size, clean faces, and the reef should handle it. Not for beginners.
Monday the 24th has a tiny glassy window in the afternoon—2ft SW groundswell with an 18-second period and glassy conditions. Super clean but tiny. After that, it goes quiet. From Tuesday the 25th through Sunday the 30th, it’s mostly small, messy, or onshore. A few clean moments on the 27th and 28th, but the swell is under 3 feet and the period is short. Not worth the paddle.
Now, the first of September looks spicy. Tuesday the 1st brings a 7ft NW swell in the afternoon, 11-second period, and strong energy (1348). The wind is cross-on from the SSW, so not perfect, but that’s a serious push. That’s for experienced surfers only. Wednesday the 2nd goes even bigger: 12ft from the NW in the afternoon, very strong energy (1379). That’s a massive swell. The wind is cross from the SE, so it’ll be a bit lumpy, but for the crew who know the rock, this could be the best session of the whole forecast. It’s a long way out so don’t bank on it yet, but keep it on your radar.
Bottom line: Sunday the 23rd afternoon is your top pick for clean, solid waves. Then watch for Tuesday the 1st and Wednesday the 2nd September for a possible big swell event. The rest is mostly waiting.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sun afternoon, min 13°C on Mon night). Winds decreasing (fresh winds from the NNW on Sun afternoon, calm by Sun night). | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | SSW 16 | NW 7 | SSW 15 | SSW 14 | WNW 11 | WNW 11 | SSW 14 | SSW 14 | SSW 13 | NW 8 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 258 | 495 | 309 | 263 | 206 | 178 | 180 | 143 | 98 | 98 | 334 | 295 | 519 | 1133 | 382 | 248 | 229 | 183 | 224 | 216 | 163 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | cross | cross | glassy | cross-on | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross | cross-off | cross | cross-off | cross-off |
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 | 10:33AM0.90m | 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 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 8:12 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 14 | 15 | 16 | 14 | 15 | 15 | 14 | 17 | 19 | 18 | 22 | 23 | 19 | 17 | 17 | 14 | 16 | 17 | 15 |
Feels °C | 15 | 16 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 15 | 16 | 15 | 19 | 18 | 16 | 16 | 16 | 14 | 15 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | SSW 15 | NW 6 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | NW 8 | NNW 7 | NW 8 | SSW 13 | SW 16 | NW 8 | SW 19 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | SW 16 | SW 16 |
| kJ | 258 | 263 | 75 | 263 | 206 | 164 | 150 | 82 | 68 | 82 | 68 | 96 | 382 | 175 | 382 | 248 | 229 | 173 | 131 | 216 | 163 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SW 21 | WNW 12 | SSW 14 | SSW 14 | NW 7 | NNW 8 | WNW 10 | WNW 10 | WNW 10 | SW 18 | SSW 13 | SW 19 | SSW 15 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | W 15 | W 14 |
| kJ | 220 | 18 | 288 | 239 | 178 | 55 | 72 | 110 | 77 | 74 | 83 | 67 | 58 | 44 | 112 | 199 | 197 | 183 | 224 | 112 | 101 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SW 21 | SSW 15 | WSW 18 | SW 19 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 | W 12 | SSW 15 | SSW 12 | SSW 16 | SSW 14 | SSW 14 | S 14 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 67 | 17 | 309 | 32 | 57 | 178 | 180 | 143 | 98 | 98 | 20 | 11 | 44 | 29 | 47 | 69 | 69 | 106 | 60 | 57 | 57 |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 7 | — | NW 6 | NW 7 | — | — | — | — | — | NW 6 | NW 7 | NW 8 | NW 8 | — | — | — | — | — | NW 6 | NW 6 |
| kJ | 144 | 495 | — | 46 | 102 | — | — | — | — | — | 334 | 295 | 519 | 1133 | — | — | — | — | — | 98 | 86 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 230 | 20 | 29 | 29 | 20 | 29 | 29 | 20 | 29 | 230 | 20 | 367 | 228 | 20 | 29 | 20 | 20 | 92 | 34 | 20 |
Best forecast wave conditions in South Oregon | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Rainbow Rocks Surf forecast
The above surf forecast table for Rainbow Rocks provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rainbow Rocks can be found by selecting the local surf guide option on the grey menu. Our Rainbow Rocks 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 (Rainbow Rocks) 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 Rainbow Rocks 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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