
Surf Forecasts:
Zampa (Inside) surf forecast from 21 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 1ft (0.3m), 11s period, ENE swell with 22 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 0.3m 11s and forecast to arrive on Thursday (Jul 23) at 6AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 12s period and expected on Wednesday (Jul 29) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Thu 23rd Jul) | 1ft (0.3m) 11s |
Table - best surf conditions forecast for Zampa (Inside) over the next 16 days.
The Lowdown
Alright, my fellow wave riders, Rusty here, and I’m giving you the straight dope on the next few weeks. The first chunk of the forecast is a total bust, a real flat spell. But don’t lose hope; the back end is starting to rumble with some proper energy. We’ve got one clear window to get excited about.
The only break in the mix is Zampa (Inside), a reef that breaks fairly often. The water is a warm 83°F, with the temp being pretty much normal for this time of year, so you won’t need a thick suit.
From Wednesday, July 22nd all the way through Friday, July 31st, it’s pretty much flat. We’re looking at swell heights that barely reach 1.0 ft, and the combined wave energy is a joke, sitting at a measly 22 (22) or even zero most days. The wind is often glassy or blowing offshore, which would be a dream if there was a wave to ride, but there’s nothing. It’s a dry spell that runs for over a week straight. The only tiny blip is a 0.3 ft, 15-second groundswell on the afternoon of Wednesday, July 29th, but with energy of just 4 (4), it’s not worth the paddle.
Finally, on Saturday, August 1st, we get a pulse. The morning offers a 2 ft swell from the West. The energy is still weak at 49 (49), and it’s a short period of 8 seconds, so it’s not gonna have much grunt. The morning is clean with a light offshore breeze, but it’s just too small. That afternoon, a 1.0 ft, 18-second long-period groundswell shows up, but the energy is still low at 84 (84).
Sunday, August 2nd is the real standout. This is the day to be in the water. Early morning brings a 3 ft swell from the East, but the period is a massive 18 seconds. That’s a very long, powerful groundswell. The combined energy jumps to 520 (520) – that’s moderate-strong juice. The wind is a fresh offshore from the ESE at 19 mph, which will keep the surface glassy. By the afternoon, it bumps up to 3 ft from the East, same long period, and the energy hits 628 (628). This is the best run of the entire forecast. The offshore wind is a major plus.
Monday, August 3rd keeps the swell running, with 4 ft from the East and a 17-second period, putting the energy at 969 (969) in the morning and 998 (998) in the afternoon. That’s strong energy. The wind turns to a cross-offshore from the SE at 22 mph, which is still clean but getting a bit breezy. This is still a solid option for the intermediate crew, but it’s getting bigger.
After that, the quality fades. Tuesday, August 4th sees the swell drop to 4 ft, but the wind turns cross-shore and messy, making the surface lumpy. The rest of the week into Thursday, August 6th sees the swell fading and the wind shifting cross-onshore, making it choppy and not worth the effort.
So, here’s the plan: sit tight through the first week. The best window is Sunday, August 2nd at Zampa (Inside). That 3 ft, 18-second groundswell with a strong 628 (628) energy and a clean, fresh offshore wind is the only real highlight in the whole 16 days. It’s a reef, so that long-period groundswell will wrap in nicely. Go get it before the wind picks up on Monday.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Thu morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 30°C on Sat morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | ENE 9 | E 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | S 8 | S 9 | S 10 | S 9 | SSE 8 | S 8 | S 9 | S 10 | S 12 |
Wave Graph | |||||||||||||||||||||
16 | 15 | 12 | 20 | 20 | 9 | 19 | 9 | 9 | 9 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | off | cross-off | glassy | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 1:20PM1.50m | 1:05AM1.79m | 3:13PM1.44m | 2:07AM1.74m | 5:07PM1.50m | 3:20AM1.72m | 6:11PM1.60m | 4:25AM1.74m | 6:48PM1.70m | 5:17AM1.79m | 7:16PM1.79m | 5:59AM1.86m | 7:39PM1.87m | ||||||||
Low Tide | 6:40PM1.09m | 8:26AM0.79m | 7:46PM1.24m | 9:49AM0.75m | 9:28PM1.33m | 10:56AM0.66m | 11:01PM1.33m | 11:46AM0.56m | 11:59PM1.28m | 12:24PM0.47m | 00:37AM1.21m | 12:56PM0.39m | 1:09AM1.13m | ||||||||
5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | |
— | 7:22 | — | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — |
Temp °C | 29 | 29 | 29 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 34 | 34 | 34 | 35 | 35 | 32 | 33 | 33 | 32 | 34 | 33 | 32 | 34 | 33 | 31 | 33 | 31 | 31 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | W 6 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 7 | SSE 9 | SSE 9 | SSE 8 | S 8 | S 9 | S 10 | S 9 | SSE 8 | S 8 | S 9 | S 10 | S 12 |
14 | 10 | 7 | 20 | 20 | 9 | 19 | 9 | 32 | 70 | 94 | 57 | 46 | 56 | 50 | 59 | 57 | 33 | 78 | 153 | 747 | |
Swell 2 Height (m) Direction Period (s) | W 6 | E 9 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SE 9 | ENE 10 | ENE 10 | ENE 9 | ESE 10 | SSW 9 | SW 8 | SW 11 | SW 10 | SW 9 | SE 10 | SE 10 | ESE 10 | ESE 10 |
6 | 15 | 5 | 9 | 9 | 2 | 2 | 3 | 9 | 9 | 8 | 10 | 8 | 18 | 30 | 34 | 13 | 17 | 16 | 19 | 19 | |
Swell 3 Height (m) Direction Period (s) | ENE 9 | W 6 | ENE 11 | W 6 | W 5 | SE 10 | SE 9 | SW 7 | SE 11 | SE 11 | SE 16 | ENE 9 | SE 10 | SE 11 | SW 8 | SE 10 | SE 11 | WSW 9 | SW 8 | SW 8 | SE 13 |
16 | 6 | 12 | 2 | 2 | 4 | 3 | 2 | 5 | 5 | 10 | 8 | 16 | 18 | 15 | 17 | 18 | 7 | 3 | 3 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 2 | SE 4 | — | ESE 3 | — | — | — | — | ESE 2 | — | ESE 4 | ESE 3 | ESE 3 | ESE 4 | — |
— | — | — | — | — | — | 1 | 4 | — | 1 | — | — | — | — | 1 | — | 7 | 1 | 1 | 7 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 36 | 41 | 60 | 25 | 25 | 60 | 683 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 14 | 14 | 14 | 14 | 14 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.










