
Surf Forecasts:
Hanamizu River surf forecast from 6 Jul 2026:
- Best quality surf: Thursday 9 Jul, 6AM (local time) - 5ft (1.6m), 15s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 3AM (local time) - 7.5ft (2.3m), 17s period, SSW swell with 3,128 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 3AM (local time) - 1.5ft (0.4m), 16s period with SSE 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 Tuesday (Jul 07) at 3AM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.5m and 12s. 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 2.3m 17s and forecast to arrive on Saturday (Jul 11) at 3AM. 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+) | 3AM (Tue 7th Jul) | 1.5ft (0.4m) 16s |
| Best Surf | 6AM (Thu 9th Jul) | 5ft (1.6m) 15s |
| Most Powerful | 3AM (Sat 11th Jul) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, folks, Rusty here. Let’s break down Hanamizu River for the next couple of weeks. Gonna be honest—there’s a big lull at the start, and we’re waiting a while before anything decent shows up.
Overall, it’s a tale of two halves: the first week is mostly weak and messy, then we get a couple of days with proper size and clean conditions before it all fades again. The water temp is about 75°F, which is just under a degree cooler than usual for this time of year—nothing wild, just a little crisp.
Here’s the day-by-day.
Monday 6th July – Tiny waves, barely 3ft from the SE, period a short 7 seconds. Energy is low at 176. Light rain and a light breeze, but Monday afternoon turns glassy with 3ft and energy up to 199. It’s surfable but real ordinary. Not worth suiting up.
Tuesday 7th July – Swell drops to 2ft Tuesday morning, period jumps to 15 seconds—longer period groundswell. Combined energy hits 289, but wind is cross-shore from the NE at 15 mph. Not clean. Afternoon has 3ft with a 15-second period (energy 454) and light offshore SE wind at 5 mph, but the waves are still marginal. Nope.
Wednesday 8th July – Now we’re cooking. Wednesday morning brings 5ft swell from the SSE with a very long 17-second period. Combined energy jumps to 1549—moderate energy now. Wind is glassy offshore from the ESE at 5 mph. This is the first real standout. The swell direction is a touch off the optimum SE, but with that period and clean wind, the waves should have some punch. That’s 5ft at 17 seconds—powerful, not for beginners. The long period can make beach breaks a bit straight, but still a solid option.
Thursday 9th July – Swell holds around 6ft to 6ft from the S, still long period (15 seconds). Combined energy 1300–1441, moderate. Morning has offshore SE wind at 5 mph, but conditions are unclear. Afternoon gets cross-onshore from the S at 15 mph, choppy. Marginal.
Friday 10th July – Size bumps to 7ft Friday morning, with a 16-second period from the S. Combined energy 2207—strong. Wind is offshore from the SSE at 10 mph, light breeze. This is the other standout. 7ft is significant—only for strong surfers. The long period means powerful waves, and at a beach break, sets will be thick. Afternoon gets messy with S wind at 20 mph, cross-onshore. Get out early.
Saturday 11th July – Swell holds 7–7ft from the SSW, period 16–17 seconds. Energy peaks at 2574 in the morning, but wind is cross-onshore from the SSE at 15 mph. Afternoon is worse with 25 mph winds. Blown out.
Sunday 12th July to Tuesday 21st July – After Saturday, it’s a steep drop. Sunday has 4ft, but cross-onshore. By Monday the 13th, we’re down to 2ft. From Sunday 12th through to Monday 20th, it’s mostly poor surf—small waves, cross-onshore winds, energy dropping below 100 at times. There’s a glassy moment on Tuesday 14th with 2ft and 11 seconds, but the swell is tiny. Not worth it. On Saturday 18th afternoon, a slight bump to 4ft with 12-second period and 602 energy, but it’s still poor conditions.
Beginners should sit out Wednesday 8th and Friday 10th—5ft and 7ft are too big. Experts, Friday 10th morning is the best of the whole forecast: 7ft, long period, clean offshore wind. Wednesday 8th morning is also a good call. Crowds are marked as “sometimes,” so expect a few heads out, but nothing too crowded.
That’s the run. First week is a dud, but Wednesday 8th and Friday 10th are your windows. Keep an eye on the forecasts—things can change.
Stay stoked,
Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Mon morning. Warm (max 26°C on Tue afternoon, min 21°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 22°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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 7 | SE 7 | SSE 14 | SSE 15 | SSE 15 | SSE 16 | SSE 17 | SSE 16 | SSE 15 | S 15 | S 15 | S 16 | S 16 | S 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
89 | 79 | 138 | 201 | 372 | 328 | 1549 | 1393 | 1223 | 1263 | 1428 | 1526 | 2183 | 2323 | 2981 | 2574 | 2110 | 1512 | 859 | 452 | 195 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | cross | cross | on | glassy | on | cross-on | cross | on | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | cross |
High Tide | 9:08PM1.40m | 8:58AM1.15m | 9:41PM1.39m | 10:25AM1.08m | 10:19PM1.38m | 12:24PM1.08m | 11:05PM1.37m | 2:23PM1.17m | 00:00AM1.38m | 3:42PM1.29m | 1:03AM1.41m | 4:37PM1.39m | 2:07AM1.45m | ||||||||
Low Tide | 2:20PM0.45m | 3:25AM0.70m | 2:58PM0.60m | 4:28AM0.62m | 3:45PM0.76m | 5:38AM0.51m | 4:48PM0.92m | 6:49AM0.38m | 6:20PM1.05m | 7:55AM0.23m | 7:58PM1.11m | 8:54AM0.09m | 9:12PM1.12m | ||||||||
4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — | |
— | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:59 | — | |
mm | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 22 | 25 | 26 | 23 | 24 | 25 | 23 | 25 | 25 | 24 | 25 | 25 | 23 | 23 | 24 | 23 | 25 | 25 | 24 |
Feels °C | 24 | 25 | 24 | 26 | 27 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 24 | 24 | 24 | 25 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SE 7 | SSE 14 | SSE 15 | SSE 15 | SSE 14 | SSE 17 | SSE 16 | SSE 15 | S 15 | S 15 | S 16 | S 16 | S 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 13 |
31 | 23 | 138 | 201 | 372 | 328 | 1549 | 1393 | 1223 | 1263 | 1428 | 1526 | 2183 | 2323 | 2981 | 2574 | 2110 | 1512 | 859 | 452 | 195 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 14 | SE 7 | SE 12 | SSE 20 | SSE 16 | — | S 19 | ESE 8 | ESE 8 | ESE 8 | — | ESE 8 | SSW 18 | — | — | — | — | — | SE 11 | SSW 12 |
54 | 70 | 16 | 86 | 75 | 310 | — | 828 | 61 | 37 | 13 | — | 24 | 1490 | — | — | — | — | — | 29 | 14 | |
Swell 3 Height (m) Direction Period (s) | SW 6 | SSE 16 | S 7 | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 9 | SE 10 |
2 | 27 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 4 | |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | — | — | SE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 4 | SSW 3 |
89 | 79 | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 4 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 465 | 0 | 10 | 19 | 33 | 0 | 19 | 43 | 3 | 31 | 62 | 12 | 43 | 104 | 103 | 62 | 104 | 0 | 104 | 77 | 3 |
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.










