Surf Forecasts:
Hanamizu River surf forecast from 15 Jul 2026:
- Most powerful swell: Friday 17 Jul, 3PM (local time) - 2.5ft (0.7m), 4s period, SSE swell with 18 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 0.7m 4s and forecast to arrive on Friday (Jul 17) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Jul 22) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Fri 17th Jul) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
Alright, let’s break it down. For Hanamizu River, it’s been a real desert out there. This beach/sandbar spot, which likes a SE swell, is seeing nothing but small, wind-affected slop for the first week and a half. Water temp is about normal for the season.
The first time you’d even bother paddling out is Tuesday, July 28th. That morning, we get a 5ft swell from the S, with a long period of 14 seconds. The combined energy is strong at 945 (moderate), and the wind is gentle cross-shore, so the surface will be clean. That 5ft is a bit much for beginners, and with that long period, the waves will have good shape but might close out a bit at a beach break. For the experienced guys, that’s the pick of the forecast. The afternoon gets a fresh cross-onshore wind, so it’ll get lumpy.
Wednesday the 29th still has some size – 4ft from the SSW, period 13 seconds, with gentle cross-shore wind. Energy is still decent at 613 (moderate). But the afternoon brings a risk of t-storms and a moderate cross-shore chop, so it’ll get messy.
After that, it’s back to small stuff. There’s a huge gap of poor surf from the start of the forecast up until the 28th, so that’s nearly two weeks of flatness. The 28th morning is the standout, but it’s a long way out, so don’t bet the farm on it. If you’re keen, that’s the only window worth watching.
Stay salty.
Rusty
Short Range ForecastModerate rain (total 10mm), 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 SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Tue morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wed 22 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 9 | S 5 | S 5 | SSW 8 | SSW 8 | SSE 4 | SSE 4 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 8 | SSE 9 | SSE 8 | SSE 8 | SSW 3 | S 4 | S 4 | SSW 6 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 11 | 11 | 6 | 6 | 18 | 6 | 12 | 11 | 10 | 16 | 9 | 11 | 8 | 14 | 7 | 3 | 13 | 9 | 12 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on | cross-off | on | cross-on | cross-off | cross | cross-on |
High Tide | 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 | 3:05PM0.90m | |||||||
 |  |  |  |  | | |  | | | | | | | | | | |  | | | |
 | — | 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 | — | — | 1 | 2 | 5 | 2 | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 6 | 2 | — |
Temp °C | 27 | 30 | 29 | 28 | 27 | 26 | 25 | 27 | 26 | 25 | 25 | 26 | 25 | 27 | 27 | 27 | 29 | 29 | 27 | 28 | 29 |
Feels °C | 29 | 34 | 32 | 33 | 32 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 30 | 29 | 31 | 33 | 33 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | S 5 | SSW 8 | S 4 | SSW 8 | SSW 8 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | S 8 | SSE 9 | E 11 | SSE 8 | SE 8 | E 11 | S 4 | SSW 6 | SE 11 |
| kJ | 16 | 11 | 7 | 3 | 6 | 6 | 3 | 12 | 11 | 10 | 16 | 9 | 5 | 8 | 3 | 7 | 3 | 2 | 9 | 12 | 5 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSW 8 | SE 10 | SSW 8 | SE 10 | SE 9 | SW 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 9 | S 7 | SSE 8 | S 8 | S 7 | E 11 | SE 8 | SE 11 | SE 7 |
| kJ | 3 | 7 | 4 | 6 | 4 | 3 | 2 | 1 | 2 | 5 | 5 | 5 | 2 | 1 | 14 | 1 | 1 | 2 | 2 | 5 | 2 |
Swell 3 Height (m) Direction Period (s) | E 11 | SE 9 | SE 8 | SE 10 | — | E 8 | S 13 | SW 8 | S 8 | E 12 | E 12 | E 12 | SE 12 | E 11 | SE 11 | E 11 | S 8 | S 12 | S 8 | SE 8 | SSE 11 |
| kJ | 2 | 3 | 3 | 4 | — | 1 | 3 | 2 | 1 | 3 | 3 | 3 | 6 | 2 | 5 | 2 | 1 | 3 | 1 | 2 | 11 |
Wind waves Height (m) Direction Period (s) | S 4 | — | S 5 | — | SSE 4 | SSE 4 | SSE 4 | SSE 4 | S 3 | SSE 4 | — | S 2 | SSE 8 | — | S 3 | S 3 | SSW 3 | S 4 | — | NNE 2 | S 6 |
| kJ | 13 | — | 11 | — | 4 | 18 | 6 | 3 | 5 | 3 | — | 1 | 11 | — | 8 | 6 | 2 | 13 | — | 1 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 77 | 77 | 104 | 62 | 62 | 509 | 104 | 62 | 104 | 62 | 62 | 104 | 76 | 77 | 77 | 76 | 43 | 77 | 77 | 509 | 62 |
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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