Surf Forecasts:
Hanamizu River surf forecast from 15 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 6AM (local time) - 1.5ft (0.4m), 8s period, SSE swell with 24 kJ wave energy.
Best Forecast Surf Conditions for Hanamizu River this week:
The most powerful waves expected at Hanamizu River in the next 16 days are 0.4m 8s and forecast to arrive on Sunday (Jul 19) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Sun 19th Jul) | 1.5ft (0.4m) 8s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the lowdown on the Hanamizu River scene.
It’s gonna be a quiet couple of weeks, I’m not gonna lie. We’re looking at a real dry spell with nothing worth getting wet for until the tail end of the month. The first week and a half is all tiny, weak waves with onshore breezes messing up the surface. The energy is just too low.
The water temp is around 25°, so it’s a touch cooler than average for the season.
The first real chance of something decent pops up on the morning of Tuesday, July 30th. We’ve got a pulse of energy coming through with a combined swell energy of 740. The swell is 4ft from the SE, with a long period of 15 seconds – that’s proper groundswell. The wind is a clean offshore breeze from the NE at 15 mph, which will groom the waves nicely. This is the standout of the entire forecast, but it’s a long way off, so don’t book the day off just yet. That afternoon the wind swings and gets messy, so the early session is the one to score.
For the rest of the time, it’s a waiting game. The swell is mostly from the SE, which is a good angle, but there just isn’t the size or the clean wind windows to make it happen. If you’re just starting out, the tiny days might be okay, but the wind is often not your friend.
I’ll be watching. Forecasts can change. This is Rusty, signing off.
Short Range ForecastModerate rain (total 17mm), heaviest on Fri morning. Warm (max 30°C on Thu morning, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Mon afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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) | SW 9 | S 4 | S 5 | S 5 | SSW 8 | SSE 5 | SSE 4 | SSE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | S 8 | SSE 9 | S 3 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 16 | 11 | 11 | 6 | 9 | 10 | 8 | 12 | 11 | 10 | 16 | 9 | 5 | 7 | 8 | 7 | 7 | 6 | 6 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross-on | glassy | on | cross-on | cross-off | glassy |
High Tide | 6:34PM1.48m | 4:55AM1.57m | 7:05PM1.46m | 5:45AM1.54m | 7:33PM1.44m | 6:35AM1.46m | 7:58PM1.42m | 7:26AM1.35m | 8:23PM1.40m | 8:21AM1.23m | 8:47PM1.39m | 9:26AM1.10m | 9:12PM1.37m | 10:59AM1.01m | |||||||
Low Tide | 11:35PM0.95m | 12:05PM-0.03m | 00:17AM0.86m | 12:43PM0.08m | 1:00AM0.77m | 1:19PM0.24m | 1:45AM0.69m | 1:50PM0.42m | 2:33AM0.63m | 2:19PM0.59m | 3:26AM0.59m | 2:44PM0.76m | 4:27AM0.55m | ||||||||
 |  |  |  |  | |  | | | | | | |  | | | | | | | | |
 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | 4:41 | — | — | 4:41 | — | — | 4:43 |
 | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | 6:53 |
mm | — | — | — | 2 | 6 | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 6 |
Temp °C | 29 | 27 | 30 | 29 | 27 | 26 | 26 | 25 | 27 | 26 | 25 | 26 | 26 | 25 | 27 | 28 | 27 | 28 | 29 | 27 | 29 |
Feels °C | 31 | 30 | 34 | 33 | 32 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 31 | 30 | 31 | 32 | 32 | 31 | 34 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SSW 9 | S 5 | SSW 8 | S 4 | SSW 8 | SSW 8 | SSE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | S 8 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 4 |
| kJ | 21 | 16 | 11 | 7 | 3 | 6 | 6 | 8 | 12 | 11 | 10 | 16 | 9 | 5 | 7 | 7 | 7 | 7 | 6 | 6 | 1 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SSW 8 | SE 10 | SSW 8 | S 4 | SE 9 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SE 8 | S 7 | E 11 | S 8 | S 3 | S 8 | E 11 | SE 8 |
| kJ | 3 | 3 | 7 | 4 | 6 | 1 | 3 | 6 | 1 | 1 | 1 | 5 | 5 | 3 | 1 | 3 | 1 | 1 | 1 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 11 | E 11 | SE 9 | SE 8 | SE 10 | SE 10 | E 8 | E 10 | SW 8 | S 9 | S 7 | E 12 | SE 7 | SE 7 | SE 11 | S 9 | E 11 | S 8 | E 11 | E 11 | SW 7 |
| kJ | 5 | 2 | 3 | 3 | 4 | 4 | 1 | 2 | 2 | 2 | 1 | 3 | 2 | 2 | 5 | 2 | 2 | 1 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | S 3 | S 4 | — | S 5 | — | SSE 5 | SSE 4 | SSE 4 | SSE 4 | S 3 | SSE 4 | S 3 | S 3 | SSE 4 | S 3 | S 3 | S 3 | — | S 2 | S 3 | — |
| kJ | 5 | 16 | — | 11 | — | 9 | 10 | 6 | 4 | 4 | 4 | 1 | 6 | 4 | 2 | 8 | 3 | — | 1 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 104 | 77 | 77 | 104 | 76 | 123 | 62 | 104 | 43 | 62 | 62 | 43 | 104 | 69 | 41 | 77 | 77 | 62 | 77 | 77 | 41 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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