Surf Forecasts:
Zampa (Inside) surf forecast from 12 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 3PM (local time) - 2.5ft (0.7m), 10s period, ENE swell with 81 kJ wave energy.
Best Forecast Surf Conditions for Zampa (Inside) this week:
The most powerful waves expected at Zampa (Inside) in the next 16 days are 0.7m 10s and forecast to arrive on Wednesday (Aug 19) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 9s period and expected on Thursday (Aug 20) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Wed 19th Aug) | 2.5ft (0.7m) 10s |
Table - best surf conditions forecast for Zampa (Inside) over the next 16 days.
The Lowdown
Alright, grab your coffee. Let's be real with what we've got here.
Honestly, looking at the next couple of weeks, it’s a bit of a slow grind for Zampa (Inside). Right now and for a while, the swell is tiny – we're talking knee-high dribbles at best, mostly coming in from the North or ENE, with combined wave energy barely registering numbers like 28 or 23. It’s frustrating because the wind is often glassy or clean offshore, especially on the mornings of the 15th, 16th, and 17th with that ESE breeze, but there’s just no power behind it. The water temp is sitting at a comfortable 84°, which is pretty average for this time of year, so at least a session won't be a cold one.
For the first week, from now through the 24th, it’s a write-off for any quality waves. We’re seeing days of "poor surf conditions" consistently. The swell is just too weak, with periods often under 10 seconds. You'll get a few days with that offshore glass, like Sunday the 16th and Monday the 17th, but with waves at 1ft, you'd be spending more time floating than riding. Thursday the 20th and Friday the 21st have some fresh offshore wind, but again, the swell is basically non-existent, with energy values of 1 and 3.
Now, the second week gets a little more interesting, but it's a long way out. Around Tuesday the 25th, we see a pulse of energy start to build. The combined swell energy jumps to 208 in the morning, then 356 in the afternoon. That's a moderate surge, but the wind is cross-on, so it'll be a bit messy. The swell direction is from the East, which ain’t the optimum N direction for this reef, but the period stretches to 15 seconds. That’s a proper long-period groundswell.
The real moment to keep an eye on is Wednesday morning, the 26th of August. That morning has our best score of the whole run. You’ve got a clean 3ft swell from the East with a 14-second period, and the wind is a light cross-off from the NE. The combined energy is a solid 364. This is the standout. For a reef break like Zampa (Inside), that long period and clean conditions should actually set up some proper lines, even if the direction isn't dead-on perfect. It's still only a mellow 3ft, so not heavy at all, good for the intermediate-plus crew. After that, it gets a bit fickle again later in the week with more cross-on wind.
So, if you’re waiting, save your energy for that Wednesday the 26th. That’s your one true chance for a couple of clean, groomed waves. Before that, maybe just wax the board and stare at the ocean.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Warm (max 29°C on Fri afternoon, min 27°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Mon morning. Warm (max 29°C on Sun morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | N 8 | N 7 | N 7 | N 7 | N 6 | W 6 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | W 5 | E 6 | E 10 | ENE 10 | NNE 6 |
Wave Graph | |||||||||||||||||||||
28 | 15 | 8 | 16 | 7 | 7 | 23 | 23 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 1 | 22 | 49 | 81 | 16 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-off | on | cross | glassy | cross-on | cross-off | off | off | off | off | off | off | cross-off | off | cross-off | cross-off | cross-off | off |
High Tide | 8:13PM2.13m | 7:57AM2.27m | 8:42PM2.15m | 8:37AM2.24m | 9:11PM2.15m | 9:15AM2.15m | 9:39PM2.13m | 9:54AM2.02m | 10:07PM2.08m | 10:34AM1.85m | 10:36PM2.01m | 11:19AM1.67m | 11:07PM1.91m | ||||||||
Low Tide | 1:52PM0.15m | 2:03AM0.69m | 2:27PM0.21m | 2:39AM0.60m | 3:00PM0.32m | 3:15AM0.54m | 3:31PM0.46m | 3:52AM0.54m | 4:00PM0.62m | 4:31AM0.58m | 4:28PM0.80m | 5:13AM0.66m | 4:55PM0.98m | ||||||||
5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | |
mm | — | — | — | 1 | — | 1 | — | — | — | — | — | 1 | 2 | 2 | — | — | — | — | — | — | 1 |
Temp °C | 28 | 28 | 28 | 28 | 29 | 27 | 28 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 28 |
Feels °C | 33 | 32 | 33 | 32 | 33 | 30 | 34 | 33 | 33 | 32 | 32 | 30 | 31 | 29 | 29 | 28 | 29 | 28 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 9 | SSW 8 | SW 8 | SW 9 | SW 8 | SW 8 | SSW 9 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SW 9 | SSW 9 | E 6 | E 10 | S 8 | NNE 6 |
66 | 84 | 59 | 103 | 54 | 50 | 42 | 62 | 116 | 92 | 92 | 141 | 99 | 106 | 83 | 81 | 68 | 22 | 49 | 19 | 16 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 8 | S 8 | N 7 | S 9 | S 8 | S 8 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 10 | SSW 9 | SW 9 | SW 9 | ESE 9 |
53 | 33 | 20 | 16 | 38 | 22 | 35 | 23 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 4 | 52 | 28 | 21 | 28 | |
Swell 3 Height (m) Direction Period (s) | N 8 | N 7 | N 7 | ENE 10 | N 6 | W 6 | ENE 11 | SSE 8 | W 6 | E 5 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | ESE 10 | W 5 | ENE 10 | SSW 8 | ESE 10 | SSW 9 |
28 | 15 | 8 | 10 | 7 | 7 | 23 | 7 | 2 | 2 | 5 | 5 | 4 | 4 | 4 | 11 | 1 | 19 | 14 | 19 | 26 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ESE 4 | — | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | E 5 | — | — | ENE 10 | ESE 5 |
— | — | — | — | — | — | — | — | 2 | — | 5 | 15 | 37 | 31 | 30 | 23 | 42 | — | — | 81 | 36 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 29 | 10 | 10 | 36 | 10 | 10 | 10 | 10 | 10 | 14 | 14 | 14 | 14 | 14 | 10 | 14 | 10 | 10 | 1 | 621 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Zampa (Inside) Surf forecast
The above surf forecast table for Zampa (Inside) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Zampa (Inside) can be found by selecting the local surf guide option on the grey menu. Our Zampa (Inside) 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 (Inside)) 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 (Inside) 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 (Inside) is 11 km (7 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.











