Surf Forecasts:
Hanamizu River surf forecast from 1 Aug 2026:
- Best quality surf: Friday 7 Aug, 12AM (local time) - 8ft (2.4m), 15s period, S swell with glassy winds.
- Most powerful swell: Wednesday 5 Aug, 3PM (local time) - 8ft (2.5m), 16s period, SSE swell with 3,745 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 6AM (local time) - 1.5ft (0.4m), 15s 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 02) at 6AM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.3m and 5s. 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 2.5m 16s and forecast to arrive on Wednesday (Aug 05) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Aug 05) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 2nd Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 12AM (Fri 7th Aug) | 8ft (2.4m) 15s |
| Most Powerful | 3PM (Wed 5th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
G'day, Rusty here, and I'm looking at the surf ahead for Hanamizu River. This is a beginner-friendly beach/sandbar setup that's fairly exposed to the swell, but it's a bit of a mixed bag over the next couple of weeks.
The water temp is about average for this time of year, so nothing unusual there.
We're starting off with a real flat spell. For the first few days—Sunday the 2nd and Monday the 3rd—the waves are tiny, messy, and not worth paddling out for. The ocean is just not doing much for us. You'll need to wait until Tuesday the 4th morning for the first real sign of life. The swell bumps up to 5ft from the SE with a long period of 16 seconds (a proper groundswell). The wind is clean and cross-offshore, so the lines will be holding up nicely. The energy is still moderate though (1165).
Wednesday the 5th is the standout. The swell builds to 8ft from the SSE, still with a nice 16-second period. The wind stays clean and cross-offshore on Wednesday morning, and the energy is strong (3278). This is getting into expert territory due to the size, but if you're game, this is the best session on offer. Thursday the 6th keeps the size up with 7ft to 8ft from the S, but the wind swings cross-onshore in the afternoon, so aim for the morning clean windows.
After that, the swell drops off fast. From Saturday the 8th afternoon through to the end of the forecast, the waves get small and weak again. There are a few moments on Wednesday the 13th afternoon with a tiny 3ft SE swell and *glassy conditions*—absolutely stunning for a small wave board, but it's only a whisper of energy (218). The rest of the second week is mostly poor surf with onshore winds or very small waves.
For the best surf, clear your calendar for Wednesday the 5th morning. The swell is pushing 8ft from the SSE, the wind is clean cross-off, and the energy is pumping (3278). It's a big one, so only for the experienced crew. If you're a beginner, the Tuesday 4th morning with 5ft SE swell and clean wind is your best bet, though it's still decently sized.
Stay stoked, and check back in—forecasts can change.
Rusty
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 31°C on Sun morning, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 30°C on Thu morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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) | SE 17 | ESE 16 | SE 15 | ESE 15 | SE 16 | SE 19 | SE 17 | SE 16 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 15 | S 16 | S 15 | S 15 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 46 | 99 | 104 | 148 | 258 | 614 | 861 | 1165 | 1712 | 2676 | 3278 | 3745 | 3175 | 2325 | 3314 | 2720 | 2206 | 1801 | 1259 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 6:18AM1.43m | 7:18PM1.46m | 7:00AM1.37m | 7:41PM1.46m | 7:48AM1.28m | 8:05PM1.45m | 8:47AM1.18m | 8:33PM1.43m | 10:12AM1.09m | 9:05PM1.40m | 12:46PM1.07m | 9:50PM1.36m | |||||||
Low Tide | 00:38AM0.68m | 12:47PM0.29m | 1:15AM0.61m | 1:15PM0.41m | 1:55AM0.55m | 1:44PM0.55m | 2:41AM0.50m | 2:14PM0.72m | 3:38AM0.47m | 2:45PM0.88m | 4:53AM0.43m | 3:24PM1.05m | |||||||
 |  | |  |  | |  |  | | | | | | | | |  | | | |
 | — | 4:50 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — |
 | 6:46 | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — |
Temp °C | 30 | 31 | 31 | 27 | 25 | 26 | 25 | 28 | 28 | 25 | 25 | 27 | 26 | 30 | 30 | 27 | 28 | 29 | 26 |
Feels °C | 35 | 34 | 33 | 28 | 25 | 26 | 24 | 26 | 26 | 23 | 23 | 28 | 27 | 32 | 32 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | ESE 16 | SE 15 | ESE 15 | SE 16 | SE 19 | SE 17 | SE 16 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 15 | S 16 | S 15 | S 15 | SSW 15 | SSW 14 |
| kJ | 11 | 99 | 104 | 148 | 258 | 614 | 861 | 1165 | 1712 | 2676 | 3278 | 3745 | 3175 | 2325 | 3314 | 2720 | 2206 | 1801 | 1259 |
Swell 2 Height (m) Direction Period (s) | SE 17 | S 5 | SE 9 | SE 9 | SE 22 | S 8 | E 14 | — | E 13 | — | — | — | — | S 18 | — | ESE 11 | ESE 12 | ESE 11 | ESE 10 |
| kJ | 46 | 5 | 3 | 3 | 75 | 1 | 4 | — | 3 | — | — | — | — | 1080 | — | 12 | 13 | 12 | 122 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 7 | SE 4 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 12 |
| kJ | 3 | 3 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 |
Wind waves Height (m) Direction Period (s) | — | — | SSW 6 | NE 3 | NE 3 | NE 3 | NE 3 | NNE 3 | NE 4 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 7 | 2 | 5 | 6 | 7 | 10 | 10 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 10 | 36 | 19 | 59 | 123 | 465 | 465 | 465 | 465 | 527 | 19 | 19 | 19 | 19 | 0 | 19 | 62 | 19 |
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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