Surf Forecasts:
Zampa (The Rock) surf forecast from 6 Aug 2026:
- Most powerful swell: Friday 7 Aug, 9PM (local time) - 25ft (7.5m), 11s period, W swell with 14,664 kJ wave energy.
Best Forecast Surf Conditions for Zampa (The Rock) this week:
The most powerful waves expected at Zampa (The Rock) in the next 16 days are 7.5m 11s and forecast to arrive on Friday (Aug 07) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 7.5m 11s period and expected on Saturday (Aug 08) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Fri 7th Aug) | 25ft (7.5m) 11s |
Table - best surf conditions forecast for Zampa (The Rock) over the next 16 days.
The Lowdown
Alright, grab a seat. It’s Rusty here, and I’ve been staring at the charts for Zampa (The Rock) for the next couple of weeks, and I’ve got to be straight with you—it’s a rough stretch. We’re looking at a solid run of poor conditions, and honestly, there’s not a single day in this entire 16-day window that I’d tell you to drop everything and paddle out.
The first four days are a complete write-off. A severe gale and then storm-force winds are going to have the place totally blown out on Friday the 7th, with a massive 18ft to 24ft of messy, cross-onshore swell. The energy readings are off the charts, in the 11000 to 14579 range, which is just raw, unorganized power. Saturday the 8th isn't any better—the swell drops to nothing, but we’ve got a howling gale making it a complete mess. Sunday the 9th has a bit of a pulse with an 11ft west swell, but the wind is still nasty and the period is too long for this setup, making it break too straight. It’s a pass.
After that, the swell just fades away. From Monday the 10th onwards, we’re looking at tiny, weak waves—most days under 3ft, with the energy readings dropping to triple and then double digits. The wind swings around, but it’s mostly cross or onshore, keeping things lumpy. There are a few clean windows with offshore winds around the 18th and 19th, but the swell is a piddly 1.3ft, and a 10 to 11 second period isn’t going to do anything on this reef. It’s just not worth the paddle.
The water temp is about average for this time of year, so that’s the only thing that’s not a problem. But the surf is a problem. This is a blank run, plain and simple. It’s the kind of stretch that’s more normal for this area when the swells just don’t line up. Keep the board in the car for a week or two, and keep an eye on the charts. It won’t be flat forever.
Short Range ForecastHeavy rain (total 215mm), heaviest during Fri afternoon. Warm (max 30°C on Sat night, min 27°C on Thu night). Winds decreasing (extremely windy from the SSW on Fri night, strong winds from the SSE by Sun afternoon). | Days 5-7 Weather SummaryHeavy rain (total 37mm), heaviest during Tue morning. Warm (max 30°C on Mon morning, min 28°C on Sun night). Winds decreasing (strong winds from the SSE on Sun night, light winds from the SW by Wed afternoon). | ||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | E 16 | NNW 10 | NW 11 | WNW 11 | ENE 11 | ENE 10 | E 10 | W 14 | W 13 | W 12 | W 12 | W 11 | W 10 | W 10 | W 9 | W 8 | ENE 11 | ENE 11 | ENE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 3916 | 6543 | 13533 | 6435 | 123 | 115 | 49 | 4733 | 2641 | 1330 | 687 | 267 | 123 | 116 | 99 | 47 | 40 | 39 | 20 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on |
High Tide | 00:20AM1.89m | 2:33PM1.55m | 1:33AM1.83m | 4:33PM1.62m | 3:07AM1.83m | 5:46PM1.76m | 4:31AM1.92m | 6:33PM1.89m | 5:36AM2.05m | 7:10PM2.00m | 6:28AM2.16m | 7:43PM2.07m | |||||||
Low Tide | 7:37AM0.65m | 7:25PM1.25m | 9:12AM0.60m | 9:22PM1.33m | 10:37AM0.47m | 10:58PM1.26m | 11:41AM0.32m | 11:59PM1.13m | 12:31PM0.21m | 00:45AM0.97m | 1:14PM0.15m | 1:25AM0.82m | |||||||
 |  | | |  | | | |  | | | | | | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | 7:13 | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — |
mm | 20 | 28 | 64 | 89 | 6 | 4 | 3 | 1 | — | 2 | 2 | 1 | 11 | 10 | 4 | 3 | 1 | 3 | 4 |
Temp °C | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 30 |
Feels °C | 23 | 19 | 19 | 18 | 20 | 22 | 27 | 28 | 28 | 29 | 30 | 31 | 30 | 31 | 31 | 32 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | E 16 | ENE 15 | ENE 12 | WNW 11 | ENE 11 | E 11 | WSW 14 | W 14 | W 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 10 | SW 9 | S 9 | SSW 9 |
| kJ | 3916 | 3609 | 413 | 6435 | 68 | 57 | 10217 | 4733 | 2641 | 1584 | 1524 | 1313 | 923 | 752 | 515 | 318 | 212 | 136 | 255 |
Swell 2 Height (m) Direction Period (s) | — | NNE 11 | E 13 | ENE 12 | ENE 11 | ENE 10 | E 10 | E 10 | SW 11 | W 12 | W 12 | W 11 | W 10 | S 10 | S 10 | S 10 | S 9 | SW 9 | ENE 10 |
| kJ | — | 862 | 633 | 45 | 123 | 115 | 49 | 49 | 930 | 1330 | 687 | 267 | 123 | 206 | 198 | 153 | 109 | 123 | 20 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 16 | E 16 | E 15 | ENE 15 | E 15 | E 10 | E 14 | E 14 | E 13 | E 12 | W 10 | W 9 | W 8 | ENE 11 | ENE 11 | N 9 |
| kJ | — | — | — | 5 | 19 | 17 | 21 | 17 | 30 | 140 | 184 | 171 | 112 | 116 | 99 | 47 | 40 | 39 | 6 |
Wind waves Height (m) Direction Period (s) | N 9 | NNW 10 | NW 11 | SW 10 | SW 12 | SW 13 | S 9 | S 10 | S 10 | SSE 10 | SSE 11 | S 11 | S 10 | SSE 10 | — | SSE 3 | — | — | — |
| kJ | 2182 | 6543 | 13533 | 5125 | 18385 | 18931 | 1291 | 2438 | 1585 | 907 | 541 | 533 | 489 | 320 | — | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 609 | 796 | 759 | 622 | 1083 | 735 | 622 | 619 | 600 | 600 | 600 | 600 | 600 | 634 | 609 | 600 | 600 | 623 | 28 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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Information about the Zampa (The Rock) Surf forecast
The above surf forecast table for Zampa (The Rock) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Zampa (The Rock) can be found by selecting the local surf guide option on the grey menu. Our Zampa (The Rock) 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 (Zampa (The Rock)) 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 Zampa (The Rock) 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.
Zampa (The Rock) is 10 km (6 miles) from the city of Ishikawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Ishikawa. Ishikawa has rooms for a wide range of budgets as well as car hire and transport links.
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