Surf Forecasts:
Hanamizu River surf forecast from 3 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 9PM (local time) - 6ft (1.9m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 9PM (local time) - 6ft (1.9m), 10s period, S swell with 738 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 6AM (local time) - 2ft (0.6m), 10s period with S 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 Friday (Sep 04) at 6AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.2m and 6s. 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 1.9m 10s and forecast to arrive on Tuesday (Sep 08) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 4s period and expected on Sunday (Sep 06) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 4th Sep) | 2ft (0.6m) 10s |
| Best Surf | 9PM (Tue 8th Sep) | 6ft (1.9m) 10s |
| Most Powerful | 9PM (Tue 8th Sep) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s comin’ for the next couple of weeks.
It’s a quiet start, no doubt about it. We’ve got a real dry spell for the first few days with nothing worth paddling out for from this Friday through to Monday. That’s a solid four-day gap of tiny, choppy, or just plain poor surf.
The one and only highlight is Tuesday the 8th. Hanamizu River is the spot. We’re lookin’ at a clean 5ft south-southeast swell with a 10-second period. The energy is solid, in the moderate range at 460, and the wind is glassy—dead calm. That’s a beautiful thing for a beginner-friendly sandbar that’s fairly consistent. The water temp is about normal for this time of year. Just a heads-up, this break can get crowded sometimes, so get in there early.
Wednesday the 9th brings a bit more size at 5ft from the south, but the wind is cross-shore in the morning, messin’ with the surface. Energy is high at 573, but conditions are only marginal. Thursday the 10th morning has a solid 6ft south swell with a light offshore breeze—that’s getting into expert territory size-wise, but the energy is strong (577) and it’ll be clean. Worth a look if you’ve got the nerve.
After that, it’s all downhill. From Friday the 11th onward, the swell drops right off. We’re talkin’ tiny waves from 1ft to 2ft, weak energy, and short, messy periods. Nothing to get excited about.
So, the plan is simple: skip the first few days, hit Tuesday the 8th morning at Hanamizu River for the best of the run, and maybe check Thursday morning if you’re an experienced surfer lookin’ for a clean, bigger wave. After that, it’s time to find somethin’ else to do.
Rusty, out.
Short Range ForecastHeavy rain (total 66mm), heaviest during Sun night. Warm (max 27°C on Fri morning, min 20°C on Sat morning). Winds increasing (light winds from the NE on Fri morning, strong winds from the N by Sun afternoon). | Days 4-6 Weather SummaryHeavy rain (total 68mm), heaviest during Tue afternoon. Warm (max 22°C on Mon morning, min 20°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SE 8 | SE 8 | SSE 9 | SSE 10 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 73 | 49 | 68 | 35 | 27 | 14 | 11 | 16 | 119 | 402 | 441 | 512 | 523 | 426 | 689 | 520 | 320 | 164 | 99 | 66 | 48 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross-off |
High Tide | 10:22AM1.10m | 8:03PM1.40m | 8:45PM1.32m | 3:36PM1.25m | 10:48PM1.25m | 3:45PM1.33m | 1:09AM1.28m | 4:04PM1.39m | 2:28AM1.38m | 4:25PM1.43m | 3:26AM1.47m | 4:45PM1.46m | |||||||||
Low Tide | 1:53PM1.01m | 4:23AM0.38m | 6:11AM0.37m | 7:15PM1.21m | 7:42AM0.29m | 8:41PM1.09m | 8:43AM0.22m | 9:20PM0.95m | 9:30AM0.17m | 9:53PM0.79m | 10:09AM0.18m | 10:26PM0.63m | |||||||||
 |  |  | | |  | | | |  | |  |  | | | | | | | |  | |
 | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — |
 | — | 6:07 | — | — | 6:05 | — | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 5:58 | — |
mm | — | 1 | 20 | 4 | 3 | — | 1 | 4 | 33 | 13 | 3 | 5 | 8 | 19 | 11 | 3 | 3 | 3 | 2 | 2 | — |
Temp °C | 27 | 27 | 23 | 21 | 21 | 22 | 21 | 20 | 21 | 22 | 22 | 22 | 20 | 20 | 21 | 22 | 22 | 22 | 23 | 23 | 22 |
Feels °C | 29 | 28 | 24 | 21 | 20 | 19 | 18 | 15 | 16 | 21 | 21 | 21 | 21 | 21 | 21 | 24 | 25 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SE 8 | SE 8 | SSE 9 | SSE 10 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 8 | S 8 |
| kJ | 73 | 49 | 68 | 35 | 27 | 14 | 11 | 16 | 119 | 402 | 441 | 512 | 523 | 426 | 689 | 520 | 320 | 164 | 99 | 66 | 48 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 6 | SSE 6 | SE 9 | ESE 7 | SE 8 | SSW 8 | S 9 | SE 11 | ESE 9 | E 9 | SSW 12 | SSW 11 | SSW 10 | E 18 | E 17 | E 16 | E 16 | E 11 | E 11 | SE 9 |
| kJ | 7 | 10 | 4 | 12 | 4 | 11 | 7 | 1 | 5 | 137 | 40 | 44 | 40 | 195 | 6 | 6 | 5 | 5 | 2 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SW 10 | SW 9 | SW 9 | NNW 5 | ESE 11 | — | — | E 9 | E 9 | — | — | E 16 | SE 11 | ESE 11 | — | E 14 |
| kJ | 3 | 3 | 3 | 12 | 3 | 4 | 3 | 3 | 8 | 12 | — | — | 6 | 6 | — | — | 5 | 5 | 11 | — | 15 |
Wind waves Height (m) Direction Period (s) | — | — | NNE 2 | NE 3 | NNE 3 | NNE 3 | NNE 4 | NNE 4 | NNE 4 | N 3 | NNE 3 | — | — | N 3 | NNE 3 | NNE 3 | NE 3 | — | — | — | — |
| kJ | — | — | 1 | 2 | 5 | 8 | 20 | 23 | 50 | 3 | 2 | — | — | 4 | 4 | 5 | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 10 | 0 | 10 | 59 | 527 | 461 | 461 | 2329 | 444 | 480 | 0 | 0 | 0 | 77 | 0 | 112 | 444 | 0 | 0 | 12 |
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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