Surf Forecasts:
Hanamizu River surf forecast from 12 Jul 2026:
- Best quality surf: Sunday 12 Jul, 9PM (local time) - 4.5ft (1.3m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 12 Jul, 9PM (local time) - 4.5ft (1.3m), 15s period, SSW swell with 656 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 9PM (local time) - 4.5ft (1.3m), 15s period with SSW swell.
Best Forecast Surf Conditions for Hanamizu River this week:
The surf forecast for Hanamizu River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 12) at 9PM. The primary swell is predicted to be 1.3m and 15s period with a secondary swell of 0.2m and 10s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Hanamizu River in the next 16 days are 1.3m 15s and forecast to arrive on Sunday (Jul 12) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 12th Jul) | 4.5ft (1.3m) 15s |
| Best Surf | 9PM (Sun 12th Jul) | 4.5ft (1.3m) 15s |
| Most Powerful | 9PM (Sun 12th Jul) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
Righto, grab a seat. Rusty here, and I’ve had a good look at what’s coming down for Hanamizu River. It’s a beach-and-sandbar setup, pretty beginner-friendly, and it’s fairly consistent with a bit of exposure. The water’s sitting at 76°, which is a bit colder than normal for this time of year – you’ll feel that nip for sure.
Honestly, the next two weeks are a bit of a write-off for a proper surf. The first real chance of anything decent shows up on Sunday, July 13th in the morning. We’ve got a 3ft swell coming from the SSW, with a period of 13 seconds – that’s a nice groundswell that’ll hold some shape. The big plus is the wind: glassy, dead calm. It’ll be clean and inviting, with the combined swell energy moderate at 313. That morning is the absolute standout. The afternoon drops off to 3ft at 12 seconds, with a light cross-off breeze, so still surfable but nothing to write home about.
After that Tuesday morning, it’s all downhill. From July 14th through to July 27th, it’s a long, flat run of poor conditions. You’re looking at tiny waves, mostly below 3ft, with short periods and messy cross-onshore winds. There’s a spike on July 17th (Friday afternoon) where a 3ft SE swell with a very long 15-second period shows up, but the wind is howling at 12 mph directly onshore, so it’s going to be a choppy mess – that’s one for the kite surfers, not us. The energy on that one hits 512, so there’s power, but it’s unmanageable.
Nothing else comes close. The rest of the days are tiny, weak, and blown out. For a spot that’s fairly consistent, this is a proper flat spell. Keep an eye on forecasts, because it can change, but for now, the waves are not playing the game.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 28°C on Mon morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 29°C on Thu morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | S 9 | SSW 4 | SSW 5 | S 5 | S 5 | SE 17 | SE 15 | SE 13 | SE 13 | SE 12 | SE 11 | SE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1107 | 569 | 302 | 206 | 109 | 66 | 59 | 38 | 34 | 81 | 25 | 24 | 64 | 31 | 142 | 444 | 290 | 242 | 210 | 174 | 153 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | cross-off | glassy | cross-on | cross-on | cross-off | on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on |
High Tide | 4:37PM1.39m | 2:07AM1.45m | 5:21PM1.45m | 3:07AM1.51m | 5:59PM1.48m | 4:02AM1.56m | 6:34PM1.48m | 4:55AM1.57m | 7:05PM1.46m | 5:45AM1.54m | 7:33PM1.44m | 6:35AM1.46m | 7:58PM1.42m | 7:26AM1.35m | |||||||
Low Tide | 9:12PM1.12m | 9:48AM-0.02m | 10:07PM1.09m | 10:37AM-0.09m | 10:53PM1.03m | 11:23AM-0.09m | 11:35PM0.95m | 12:05PM-0.03m | 00:17AM0.86m | 12:43PM0.08m | 1:00AM0.77m | 1:19PM0.24m | 1:45AM0.69m | ||||||||
 |  | | |  |  |  |  |  | | | | |  | | | | | | | | |
 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 |
 | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | 6:55 |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 28 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 29 | 29 | 28 | 27 | 27 | 26 | 27 | 28 | 25 | 29 |
Feels °C | 31 | 31 | 32 | 31 | 29 | 29 | 29 | 29 | 32 | 30 | 31 | 32 | 32 | 32 | 32 | 29 | 30 | 30 | 31 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SE 9 | SE 9 | SSW 8 | SE 10 | SE 10 | SE 17 | SE 15 | SE 13 | SE 13 | SE 12 | SE 11 | SE 10 |
| kJ | 1107 | 569 | 302 | 206 | 109 | 66 | 59 | 38 | 34 | 3 | 3 | 7 | 4 | 4 | 142 | 444 | 290 | 242 | 210 | 174 | 153 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SSE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 12 | SE 10 | SE 10 | SE 11 | S 13 | SE 9 | SE 10 | SW 8 | SE 10 | ESE 9 | SW 8 | SW 8 | SW 8 | S 8 | S 7 |
| kJ | 32 | 9 | 4 | 4 | 3 | 3 | 6 | 4 | 4 | 5 | 3 | 3 | 16 | 3 | 4 | 15 | 2 | 2 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 9 | SE 13 | ESE 12 | SE 12 | SE 12 | SE 9 | S 14 | S 14 | S 13 | E 11 | S 13 | SW 10 | SSE 9 | E 10 | — | SW 9 | S 8 | S 7 | S 7 | S 8 |
| kJ | 7 | 23 | 7 | 15 | 6 | 6 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 8 | 2 | — | 3 | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 2 | SSW 3 | SSW 3 | S 9 | SSW 4 | SSW 5 | S 5 | S 5 | S 5 | S 5 | S 4 | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | 1 | 1 | 81 | 25 | 24 | 64 | 31 | 28 | 53 | 9 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 119 | 0 | 0 | 0 | 0 | 13 | 77 | 77 | 77 | 104 | 76 | 104 | 104 | 77 | 12 | 104 | 36 | 27 | 36 | 0 | 31 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Hanamizu River Surf forecast
The above surf forecast table for Hanamizu River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hanamizu River can be found by selecting the local surf guide option on the grey menu. Our Hanamizu River 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 (Hanamizu River) 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 Hanamizu River 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.
Hanamizu River is 1 km (1 miles) from Ninomiya. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Ninomiya. Ninomiya has rooms for a wide range of budgets as well as car hire and transport links.
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