Surf Forecasts:
Hanamizu River surf forecast from 27 Jul 2026:
- Most powerful swell: Monday 3 Aug, 3PM (local time) - 2.5ft (0.7m), 17s period, SE swell with 295 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 17s and forecast to arrive on Monday (Aug 03) at 3PM. 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 | 3PM (Mon 3rd Aug) | 2.5ft (0.7m) 17s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – the next 16 days are looking pretty grim for a paddle. Let's get into it.
We're looking at Hanamizu River, a beach and sandbar setup that's fairly exposed. The water's running a touch warmer than normal for this time of year, sitting at 82°F.
The first week, from July 27th right through to August 2nd, is a total write-off. The swell is tiny, barely a ripple, and the wind is either cross or cross-on, keeping things messy. You'll see a few glassy moments on the morning of Friday, August 1st, but with a swell of just 0.3ft, there's nothing to ride. The combined swell energy is pathetically low, in the single digits and teens (6 to 67), so don't even bother.
Then, from August 3rd, we start to see some life. The swell builds, but it's partnered with lousy wind conditions. Monday the 3rd has a moderate cross-shore with a cross-chop, and the energy is still weak (157). By Tuesday, August 4th, the swell jumps to 4ft from the SE, with a very long period of 18 seconds, and the energy gets strong, hitting 704. But the wind is cross-shore and then onshore, screwing up the shape. The same pattern holds for Wednesday, August 5th, with clean cross-offshore wind in the morning and 4ft of SE swell (energy 691). This is the only real standout in the whole run. The long period means it'll be a groundswell with good shape, but at a sandbar, it might break a little too straight. Still, for a surfer who knows the spot, Wednesday morning, August 5th, is your best chance. By Thursday the 6th, the swell is 4ft from the ESE (energy 835), but the wind goes onshore, ruining it.
After that, the surf fades out again into the second week, with nothing but poor, weak conditions and onshore winds from August 7th through to the 11th. The combined energy drops back to weak levels (34 to 59). It's a long, dry spell.
Honestly, for this area, a blank run like this is more normal than not. If you're desperate, keep an eye on Wednesday, August 5th, for a possible early session before the wind turns. Otherwise, the setup looks more interesting for kite surfing than paddle surfing.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Warm (max 29°C on Wed afternoon, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||
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 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 5 | SSW 7 | S 7 | SSW 7 | SSW 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 8 | S 7 | SE 13 | SE 15 | SE 14 | SE 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 16 | 16 | 15 | 15 | 44 | 45 | 44 | 29 | 18 | 28 | 5 | 6 | 5 | 4 | 3 | 8 | 7 | 57 | 54 | 109 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | glassy | cross-on | cross-on | off | cross-on | cross-on | cross | cross-on | cross-on | cross | glassy | cross-on | off | cross | cross | cross | cross | cross-off | cross |
High Tide | 5:07PM1.31m | 2:54AM1.37m | 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 | ||||||||
Low Tide | 9:39AM0.25m | 9:52PM1.04m | 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 | |||||||
 |  |  | | |  |  |  |  | | | | | | | |  |  | | |  | |
 | 4:47 | — | — | 4:48 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — | 4:50 | — | — | 4:50 | — | — |
 | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — |
mm | — | 1 | 1 | — | — | — | — | 2 | 3 | — | 2 | 1 | — | 2 | 2 | — | — | 1 | — | — | — |
Temp °C | 26 | 26 | 25 | 27 | 27 | 26 | 28 | 29 | 28 | 25 | 26 | 26 | 28 | 28 | 27 | 25 | 26 | 24 | 23 | 26 | 23 |
Feels °C | 28 | 28 | 28 | 29 | 29 | 29 | 31 | 32 | 31 | 28 | 28 | 30 | 31 | 31 | 33 | 25 | 27 | 24 | 22 | 26 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | SSW 4 | SSW 7 | SE 10 | SSW 7 | SSW 7 | SE 10 | SSW 7 | SSW 7 | SSW 7 | SSE 4 | SE 4 | SE 9 | S 6 | SE 15 | SE 14 | SE 15 |
| kJ | 14 | 14 | 14 | 15 | 15 | 10 | 45 | 4 | 29 | 18 | 4 | 5 | 5 | 5 | 3 | 1 | 3 | 3 | 57 | 54 | 109 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | SE 10 | SE 12 | SE 9 | SE 9 | SE 12 | SE 9 | SE 9 | SE 9 | SSW 7 | SW 7 | SE 14 | SE 9 | ESE 9 | E 9 | SSE 9 |
| kJ | 16 | 16 | 16 | 15 | 15 | 7 | 4 | 6 | 3 | 3 | 6 | 3 | 3 | 3 | 4 | 2 | 8 | 3 | 8 | 6 | 9 |
Swell 3 Height (m) Direction Period (s) | SE 14 | SE 14 | SE 13 | SE 13 | SE 13 | SE 10 | SE 13 | S 8 | SE 12 | SE 12 | S 8 | — | SE 12 | S 11 | SE 10 | SE 8 | SE 11 | SE 13 | S 5 | SE 9 | S 9 |
| kJ | 8 | 8 | 7 | 7 | 7 | 4 | 6 | 1 | 6 | 6 | 1 | — | 6 | 3 | 4 | 3 | 4 | 7 | 2 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | NE 2 | S 5 | ESE 3 | — | S 3 | SSW 5 | — | S 7 | ESE 4 | — | S 7 | S 3 | S 5 | S 2 | — | — | S 7 | — | — | — | ENE 2 |
| kJ | 1 | 5 | 1 | — | 1 | 44 | — | 44 | 2 | — | 28 | 2 | 2 | 1 | — | — | 8 | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 41 | 62 | 41 | 77 | 10 | 17 | 76 | 69 | 87 | 104 | 81 | 103 | 104 | 103 | 2319 | 69 | 69 | 19 | 12 | 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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