Surf Forecasts:
Rainbow Rocks surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 11PM (local time) - 3.5ft (1.0m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 8PM (local time) - 8ft (2.4m), 11s period, WNW swell with 1,350 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 11PM (local time) - 3.5ft (1.0m), 17s 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 Friday (Sep 04) at 11PM. The primary swell is predicted to be 1.0m and 17s period with a secondary swell of 1.6m and 9s. 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 2.4m 11s and forecast to arrive on Thursday (Sep 03) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Monday (Sep 07) at 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 4th Sep) | 3.5ft (1.0m) 17s |
| Best Surf | 11PM (Fri 4th Sep) | 3.5ft (1.0m) 17s |
| Most Powerful | 8PM (Thu 3rd Sep) | 8ft (2.4m) 11s |
Table - best surf conditions forecast for Rainbow Rocks over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down the next couple of weeks.
We’re in for a bit of a slow start. The first few days are sloppy, with cross-onshore winds making for some lumpy, marginal surf. Don’t bother waxing up just yet.
The first real clean window comes on the morning of Tuesday, September 8th. The wind goes glassy at Rainbow Rocks, with a tiny 2ft swell from the SSW. It’s a clean, smooth session, but you’ll be on the foamie or a log.
The one to circle is the afternoon of Thursday, September 10th. The wind goes glassy, and we get a clean 3ft SSW groundswell with a very long 17 second period. The energy is building nicely (718), and with those conditions, Rainbow Rocks will be clean, lined up, and offering some proper chest-high waves. The water is much colder than normal for this time of year at 53°F, so bring the thick wetsuit.
Then things get a bit heavy. Friday, September 11th afternoon sees the swell jump to 8ft from the SSW, but with a light cross-onshore wind, making it a bit bumpy. Saturday, September 12th morning brings a solid 10ft swell from the SSW, but with a short period of 10 seconds. That’s expert-only territory, and the moderate cross-shore wind will chop it up. It’s a powerful, raw ocean, but not the cleanest.
The following week looks much cleaner. From Monday, September 14th through Thursday, September 17th, we get a steady run of clean, cross-offshore winds from the NNW, with swell sizes sitting around 4ft to 5ft. The energy is moderate (around 400-550), and the waves will be clean and lined up. It’s not huge, but for a solid, fun session with no crowds, it’s a great stretch.
The last real highlight comes on the morning of Friday, September 18th. A new, very long-period groundswell from the SW (21 seconds) arrives, with clean cross-offshore winds. The swell is only 2ft, but the energy is ramping up to 820. That’s a sneaky, clean day for a longboard if you can find the right bank.
All in all, the best bet is the Thursday, September 10th afternoon session. It’s the perfect mix of size, glassy wind, and long-period energy. The second week offers a solid run of clean, manageable waves, but nothing that will blow your hair back.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Thu morning. Very mild (max 16°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Mon afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | WNW 10 | NW 11 | WNW 11 | WNW 10 | WNW 10 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | NW 6 | SSW 13 | SW 19 | NW 7 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 800 | 1170 | 1326 | 804 | 622 | 573 | 539 | 481 | 451 | 411 | 485 | 301 | 297 | 229 | 204 | 186 | 311 | 181 | 181 | 160 | 312 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross-on | cross-on | cross-off | cross | cross | cross-off | glassy | cross | glassy | cross-on | cross | cross-off | glassy | cross | glassy | glassy | cross | glassy |
High Tide | 4:19PM2.16m | 6:36AM1.41m | 5:22PM2.12m | 8:09AM1.44m | 6:38PM2.10m | 9:20AM1.54m | 7:57PM2.12m | 10:11AM1.66m | 9:08PM2.18m | 10:52AM1.79m | 10:09PM2.22m | 11:28AM1.92m | 11:04PM2.22m | ||||||||
Low Tide | 9:59AM0.91m | 11:50PM0.09m | 11:00AM1.06m | 1:07AM0.04m | 12:26PM1.13m | 2:21AM-0.04m | 1:57PM1.08m | 3:24AM-0.13m | 3:14PM0.93m | 4:17AM-0.20m | 4:15PM0.73m | 5:02AM-0.22m | 5:08PM0.52m | ||||||||
 | |  |  | |  |  | | |  | | | | |  | | | | | | | |
 | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — |
mm | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 14 | 15 | 15 | 14 | 16 | 16 | 14 | 14 | 15 | 14 | 15 | 16 | 14 | 15 | 15 | 13 | 14 | 15 | 14 |
Feels °C | 13 | 13 | 12 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 12 | 13 | 14 | 13 | 15 | 15 | 12 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | NW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | NW 9 | NW 9 | NW 8 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | NW 6 | NW 6 | SSW 13 | NW 6 | NW 7 | NW 7 | NW 7 |
| kJ | 800 | 1170 | 1326 | 804 | 622 | 370 | 242 | 260 | 184 | 411 | 485 | 301 | 297 | 229 | 95 | 124 | 118 | 123 | 131 | 160 | 136 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | NW 9 | NW 8 | NW 8 | NW 8 | SW 10 | SSW 13 | SSW 13 | S 14 | SSW 13 | S 12 | S 12 | S 13 |
| kJ | 399 | 524 | 228 | 547 | 541 | 573 | 539 | 481 | 451 | 126 | 118 | 93 | 93 | 25 | 204 | 158 | 64 | 181 | 106 | 148 | 161 |
Swell 3 Height (m) Direction Period (s) | NW 12 | SSW 6 | SW 15 | S 12 | S 11 | S 10 | S 12 | SSW 12 | SSW 11 | SSW 10 | WNW 13 | SSW 11 | SSW 11 | SW 19 | WNW 11 | WNW 11 | SW 18 | SW 18 | SW 19 | SW 16 | SW 18 |
| kJ | 118 | 22 | 186 | 70 | 66 | 56 | 104 | 81 | 71 | 33 | 69 | 47 | 45 | 58 | 47 | 45 | 112 | 113 | 181 | 130 | 312 |
Wind waves Height (m) Direction Period (s) | SSW 6 | — | — | S 4 | — | — | — | NW 3 | — | — | — | — | — | NW 5 | — | NW 6 | NW 6 | — | — | — | — |
| kJ | 47 | — | — | 17 | — | — | — | 4 | — | — | — | — | — | 135 | — | 186 | 311 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 32 | 20 | 102 | 32 | 20 | 29 | 29 | 20 | 20 | 34 | 20 | 29 | 34 | 20 | 20 | 34 | 20 | 20 | 29 | 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.
Are you planning a vacation in South Oregon? If you are looking for accommodation near Rainbow Rocks, camping, hotels and condos and appartments in South Oregon, consider staying in Grants Pass which is 92 km (57 miles) away.
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