Surf Forecasts:
Hanamizu River surf forecast from 20 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 3PM (local time) - 11ft (3.5m), 12s period, SSE swell with cross-onshore winds.
- Most powerful swell: Thursday 27 Aug, 12AM (local time) - 16ft (5.0m), 12s period, SSE swell with 6,844 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 12PM (local time) - 1.5ft (0.4m), 14s period with SE 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 (Aug 23) at 12PM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hanamizu River in the next 16 days are 5.0m 12s and forecast to arrive on Thursday (Aug 27) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 23rd Aug) | 1.5ft (0.4m) 14s |
| Best Surf | 3PM (Wed 26th Aug) | 11ft (3.5m) 12s |
| Most Powerful | 12AM (Thu 27th Aug) | 16ft (5.0m) 12s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
Short Range ForecastLight rain (total 7mm), mostly falling on Sat night. Warm (max 28°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Mon afternoon, min 25°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | SSE 6 | SSW 9 | S 10 | SSW 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SSE 15 | SSE 14 | SSE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 16 | S 15 | S 13 | SSE 12 | SSE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 8 | 8 | 27 | 101 | 35 | 32 | 32 | 20 | 21 | 134 | 627 | 1531 | 1307 | 2709 | 3607 | 4016 | 3764 | 2668 | 3679 | 6844 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | cross | glassy | glassy | on | cross-on | cross | on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 10:11AM1.02m | 8:20PM1.36m | 8:48PM1.29m | 9:51PM1.23m | 4:23PM1.21m | 00:27AM1.21m | 4:23PM1.27m | 1:56AM1.27m | 4:35PM1.33m | 2:52AM1.35m | 4:51PM1.38m | ||||||||||
Low Tide | 1:46PM0.94m | 4:30AM0.52m | 6:10AM0.53m | 7:42AM0.47m | 8:28PM1.14m | 8:39AM0.38m | 9:13PM1.05m | 9:21AM0.30m | 9:43PM0.96m | 9:55AM0.23m | 10:11PM0.85m | ||||||||||
 |  |  | |  | | | |  | | | |  | |  | | | | | | | |
 | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — |
 | — | 6:27 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — |
mm | — | — | — | — | 2 | — | — | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 27 | 26 | 27 | 26 | 27 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 26 |
Feels °C | 29 | 29 | 29 | 30 | 29 | 29 | 31 | 31 | 31 | 30 | 32 | 30 | 30 | 31 | 29 | 30 | 30 | 29 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SSW 9 | SSW 8 | SSW 9 | SE 11 | SSW 9 | SSW 9 | SSW 9 | S 5 | SSW 9 | SSE 14 | SSE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 16 | S 15 | S 13 | S 12 | SSE 12 |
| kJ | 3 | 8 | 6 | 27 | 4 | 35 | 32 | 32 | 7 | 15 | 134 | 627 | 1531 | 1307 | 2709 | 3607 | 4016 | 3764 | 2668 | 2259 | 3959 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 11 | S 10 | SE 11 | S 9 | SE 10 | SSW 4 | SE 10 | SW 9 | SSE 15 | SSW 8 | SSW 8 | SW 10 | SSE 18 | SW 11 | ESE 14 | ESE 13 | E 13 | E 12 | E 16 | SSW 12 |
| kJ | 4 | 4 | 8 | 4 | 2 | 4 | 2 | 4 | 20 | 21 | 14 | 14 | 49 | 716 | 29 | 37 | 35 | 30 | 27 | 5 | 98 |
Swell 3 Height (m) Direction Period (s) | SW 8 | E 6 | SE 11 | SE 5 | S 13 | S 9 | SE 10 | SE 11 | SE 10 | S 5 | SE 21 | SW 10 | — | SW 10 | ESE 15 | SW 10 | SW 10 | — | — | — | — |
| kJ | 2 | 1 | 4 | 4 | 3 | 2 | 4 | 5 | 4 | 2 | 17 | 16 | — | 35 | 42 | 16 | 16 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | S 3 | SSW 3 | S 9 | SSW 4 | SW 3 | S 3 | — | — | — | — | — | — | — | — | — | — | — | SSE 12 | SSE 12 |
| kJ | — | 6 | 1 | 2 | 101 | 10 | 2 | 8 | — | — | — | — | — | — | — | — | — | — | — | 3679 | 6844 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 104 | 103 | 77 | 77 | 104 | 77 | 77 | 77 | 41 | 59 | 0 | 0 | 12 | 77 | 76 | 103 | 1197 | 103 | 13 | 62 | 62 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hanamizu River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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