Surf Forecasts:
Hanamizu River surf forecast from 27 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 12AM (local time) - 4.5ft (1.3m), 17s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 9AM (local time) - 5ft (1.6m), 18s period, SE swell with 1,628 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 3PM (local time) - 3.5ft (1.0m), 17s 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 Monday (Aug 03) at 3PM. The primary swell is predicted to be 1.0m and 17s period with a secondary swell of 0.1m and 14s. Another secondary swell of 0.2m and 8s 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 1.6m 18s and forecast to arrive on Tuesday (Aug 04) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 04) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 3rd Aug) | 3.5ft (1.0m) 17s |
| Best Surf | 12AM (Tue 4th Aug) | 4.5ft (1.3m) 17s |
| Most Powerful | 9AM (Tue 4th Aug) | 5ft (1.6m) 18s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s coming our way for the next couple of weeks.
First off, we have a right flat spell to get through. There is basically nothing rideable from now until the end of July and into the first few days of August. We’re looking at a solid gap of about a week with hardly any surf to speak of. Tiny, weak waves and dodgy winds aren't worth your time.
Things finally start to look more interesting as we move into the first week of August. By Tuesday the 4th, Hanamizu River is seeing a bit more life. The early morning on the 4th has some 4ft swell coming from the SE at a very long 18 seconds. That’s proper groundswell energy, but the wind is cross-on, so it won't be perfect. The swell builds through the afternoon to 5ft and the energy kicks up a notch (1315), but that cross-onshore wind keeps things just a little messy.
Now, the clear standout window, if you are an experienced surfer, is Thursday the 6th. We’ve got a serious pulse of swell hitting, with wave heights predicted at 13ft from the SSE. The energy is absolutely thumping (8461). That is a big, powerful swell and the wind is light to moderate cross/cross-onshore. However, and this is a big “however,” that size is going to be way too much for most. This is strictly for the experts only; beginners and intermediates should sit this one out completely. The break will be too big and chaotic for a normal paddle session.
After that peak, the size drops back down but remains solid through the 7th and into the 8th, with 12ft and 6ft swells respectively. The winds are still a bit of a mix, mostly onshore, keeping the quality average at best.
The final few days of the outlook see the energy fading away again. We drop back to small, weak, and messy conditions by Monday the 10th and Tuesday the 11th, with cross-offshore winds making for clean-looking water but very little push.
So to wrap it up, if you’re a grom or just looking for a fun, safe paddle, you have to wait until around Thursday the 5th or Friday the 6th, but even then the conditions look more suited to a tow-in crew than a standard surfer. If you're an expert, that big Thursday the 6th will get your heart pumping, but it's a beast. For everyone else, this is a quiet period with nothing simple on offer.
Stay safe out there.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Wed afternoon. Warm (max 29°C on Wed afternoon, min 24°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri afternoon. Warm (max 30°C on Fri morning, min 24°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
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) | SE 10 | S 9 | SW 5 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 16 | SE 15 | ESE 14 | SE 14 | SE 14 | ESE 15 | SE 17 | SE 17 | SE 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 54 | 38 | 32 | 35 | 41 | 18 | 11 | 5 | 9 | 15 | 4 | 10 | 9 | 19 | 51 | 53 | 150 | 342 | 540 | 962 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | cross | cross-on | glassy | cross-on | glassy | on | on | cross-on | on | cross-on | cross-off | cross-off |
High Tide | 5:29PM1.36m | 3:40AM1.42m | 5:51PM1.39m | 4:21AM1.46m | 6:13PM1.42m | 5:00AM1.48m | 6:35PM1.44m | 5:38AM1.47m | 6:56PM1.46m | 6:18AM1.43m | 7:18PM1.46m | 7:00AM1.37m | 7:41PM1.46m | ||||||||
Low Tide | 10:16AM0.18m | 10:26PM0.97m | 10:50AM0.14m | 10:59PM0.90m | 11:21AM0.13m | 11:31PM0.83m | 11:50AM0.15m | 00:04AM0.75m | 12:19PM0.20m | 00:38AM0.68m | 12:47PM0.29m | 1:15AM0.61m | 1:15PM0.41m | 1:55AM0.55m | |||||||
 | |  |  |  |  | | |  |  | | |  | |  | | | | | | | |
 | 4:48 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — | 4:50 | — | — | 4:50 | — | — | 4:52 | — | — |
 | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | — | — | — | 3 | 1 | — | 1 | — | — | 3 | 2 | 2 | — | 3 | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 28 | 29 | 28 | 28 | 27 | 27 | 30 | 29 | 27 | 25 | 25 | 25 | 27 | 27 | 26 | 25 | 28 | 26 |
Feels °C | 28 | 28 | 29 | 30 | 32 | 31 | 32 | 29 | 32 | 33 | 32 | 31 | 29 | 29 | 29 | 30 | 30 | 30 | 28 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SE 10 | SSW 4 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 9 | SSW 7 | SSW 7 | SE 15 | SSE 5 | SE 14 | SE 14 | ESE 15 | SE 17 | SE 17 | SE 17 |
| kJ | 15 | 15 | 11 | 32 | 35 | 41 | 18 | 11 | 5 | 9 | 3 | 4 | 4 | 9 | 2 | 51 | 53 | 150 | 342 | 540 | 962 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 13 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 5 | SE 5 | S 11 | S 3 | SE 10 | SE 10 | ESE 14 | S 5 | SSE 4 | SSE 4 | S 8 | E 14 | E 14 |
| kJ | 15 | 7 | 7 | 4 | 4 | 4 | 4 | 4 | 2 | 1 | 3 | 1 | 4 | 4 | 19 | 4 | 2 | 2 | 1 | 4 | 15 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 13 | SSE 10 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 9 | SE 9 | S 8 | SE 11 | SE 16 | S 8 | SE 9 | SE 9 | SE 9 | SE 9 | E 14 | SSW 8 | — |
| kJ | 7 | 27 | 9 | 7 | 6 | 6 | 6 | 6 | 3 | 3 | 1 | 4 | 10 | 1 | 3 | 3 | 3 | 3 | 4 | 7 | — |
Wind waves Height (m) Direction Period (s) | — | S 9 | SW 5 | — | S 2 | — | — | S 3 | — | — | SSW 7 | — | — | S 7 | — | — | — | — | ESE 9 | ESE 8 | NE 3 |
| kJ | — | 54 | 38 | — | 1 | — | — | 1 | — | — | 15 | — | — | 4 | — | — | — | — | 8 | 7 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 12 | 77 | 41 | 41 | 43 | 59 | 41 | 104 | 103 | 81 | 81 | 99 | 101 | 104 | 12 | 36 | 104 | 76 | 36 | 36 |
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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