Surf Forecasts:
Nomozaki surf forecast from 18 Aug 2026:
- Best quality surf: Sunday 23 Aug, 6PM (local time) - 5.5ft (1.7m), 9s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 9AM (local time) - 6ft (1.8m), 10s period, SSW swell with 653 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 12AM (local time) - 2.5ft (0.7m), 9s period with SSW swell.
Best Forecast Surf Conditions for Nomozaki this week:
The surf forecast for Nomozaki over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 12AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.1m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Nomozaki in the next 16 days are 1.8m 10s and forecast to arrive on Monday (Aug 24) at 9AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 22nd Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 6PM (Sun 23rd Aug) | 5.5ft (1.7m) 9s |
| Most Powerful | 9AM (Mon 24th Aug) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Nomozaki over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s cooking for the Nomozaki region over the next couple of weeks. I gotta be straight with you – the first week is a real tough slog. We’re looking at a serious drought of decent surf right up until the 23rd of August. For days on end you’ll be staring at flat, weak, and messy conditions. The swell energy is tiny, barely registering above 20 in the combined energy stakes, and those short 8-second periods won't build anything worth paddling out for. It’s a proper blank run, so don’t bother waxing up until we get to that Sunday morning.
Things finally start to wake up on the morning of Sunday the 23rd of August. The swell bumps up to a clean 6 ft from the SSW with a 9-second period. The combined energy jumps to a moderate 475, and with zero wind and glassy conditions, it’ll be the first real chance to get wet. That morning window is the standout for the whole first week – it’s clean, it’s got some push, and for a spot that’s rarely breaking, this is a window you don’t ignore. The following Monday morning, the 24th, is even better: 6 ft from the SSW, 10-second period, and a combined energy of 653. Again, glassy offshore winds from the ENE will make it clean. For a beginner-friendly break, that 6 ft is getting towards the top end of fun, but it's still manageable.
Now, the real interest for the experienced crew comes in the second week, specifically around the 31st of August into the 2nd of September. The morning of Monday the 31st sees a solid 3 ft SSW groundswell with a very long 16-second period and a combined energy of 554. The wind is light offshore from the NE, promising clean walls. This is a point-and-reef setup, so that long-period energy will wrap in nicely, offering better shaped waves and longer lulls between sets. The wind picks up a bit by the afternoon, but the morning is the pick. The following morning, Tuesday the 1st, is a bit of a gamble – the swell is 5 ft from the SSW with that same 15-second period, and the energy is strong at 886, but the wind is howling at 22 mph from the NNE, making it a cross-offshore. It’s powerful but windy. The real standout of the whole forecast is the morning of Wednesday the 2nd of September. We’re looking at a 6 ft SSW groundswell with a 15-second period and a massive combined energy of 1374, under a clean 16 mph offshore wind. That’s a proper session for the experts – 6 ft at that period with that energy is a serious wave. It’s in the second week, so the certainty isn’t locked in, but the potential is huge. For the beginners, the swell gets over 5 ft, and by the 2nd it’s over 6 ft, so that’s a bit too much juice.
* Nomozaki (Nagasaki): The water temp is sitting around 84°F, which is about 1°F above average for this time of year, so nothing crazy, just a nice warm bath. This spot is a beach and reef set-up that’s rarely breaking, so when it does come alive, it’s a special treat. Crowds are only a possibility sometimes, so you might have it clean and empty.
Rusty out.
Short Range ForecastMostly dry. Warm (max 30°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Warm (max 30°C on Fri afternoon, min 26°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | SW 8 | SSW 9 | SW 8 | SW 8 | SW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 10 | SSW 9 |
Wave Graph | ||||||||||||||||||||
72 | 50 | 17 | 17 | 18 | 13 | 6 | 7 | 30 | 29 | 90 | 82 | 179 | 359 | 475 | 415 | 528 | 653 | 460 | 318 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | cross | glassy | glassy | cross | glassy | glassy | cross | glassy | glassy | cross | cross-on | glassy | cross-on | cross-off | glassy | cross | cross-off |
High Tide | 11:15PM2.53m | 12:12PM2.22m | 11:41PM2.37m | 1:16PM2.02m | 00:13AM2.21m | 3:44PM1.94m | 1:09AM2.05m | 5:54PM2.09m | 3:26AM1.98m | 6:35PM2.27m | 5:10AM2.10m | 7:02PM2.44m | ||||||||
Low Tide | 5:22PM1.11m | 5:56AM0.79m | 5:54PM1.38m | 6:45AM0.93m | 6:35PM1.63m | 7:56AM1.05m | 8:17PM1.81m | 9:37AM1.06m | 10:54PM1.78m | 11:03AM0.94m | 00:02AM1.62m | 11:58AM0.75m | 00:39AM1.44m | |||||||
— | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | |
7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 28 | 27 | 29 | 29 | 28 | 30 | 30 | 29 | 29 | 30 | 28 | 29 | 29 | 28 | 28 | 28 | 27 | 29 | 29 | 27 |
Feels °C | 31 | 32 | 33 | 31 | 32 | 33 | 32 | 33 | 32 | 33 | 32 | 32 | 31 | 32 | 31 | 30 | 31 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 7 | SSW 9 | SW 8 | SW 8 | SW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 10 | SSW 9 |
1 | 50 | 17 | 17 | 18 | 13 | 6 | 7 | 30 | 29 | 90 | 82 | 179 | 359 | 475 | 151 | 528 | 653 | 460 | 124 | |
Swell 2 Height (m) Direction Period (s) | S 7 | SSW 4 | SSW 5 | S 7 | — | — | — | SW 8 | SW 10 | SW 9 | SW 11 | SW 10 | — | — | — | — | — | — | — | — |
1 | 2 | 4 | 4 | — | — | — | 2 | 4 | 3 | 5 | 17 | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | S 7 | S 7 | — | S 7 | S 7 | — | SW 10 | — | — | — | — | — | — | — | — | — | — | — | — |
— | 1 | 1 | — | 1 | 1 | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 9 | — | — | SSW 9 | SSW 9 |
72 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 415 | — | — | 180 | 318 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 437 | 187 | 187 | 437 | 187 | 214 | 425 | 187 | 187 | 214 | 0 | 0 | 214 | 187 | 0 | 425 | 0 | 0 | 461 | 0 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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Information about the Nomozaki Surf forecast
The above surf forecast table for Nomozaki provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nomozaki can be found by selecting the local surf guide option on the grey menu. Our Nomozaki 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 (Nomozaki) 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 Nomozaki 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.
Nomozaki is 14 km (9 miles) from Togitsu. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Togitsu. Togitsu has rooms for a wide range of budgets as well as car hire and transport links.











