
Surf Forecasts:
Hanamizu River surf forecast from 5 Jul 2026:
- Best quality surf: Thursday 9 Jul, 3AM (local time) - 5.5ft (1.7m), 15s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 3AM (local time) - 7ft (2.2m), 18s period, SSW swell with 2,942 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 12PM (local time) - 3.5ft (1.0m), 7s 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 (Jul 06) at 12PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.6m and 7s. Another secondary swell of 0.4m and 14s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hanamizu River in the next 16 days are 2.2m 18s and forecast to arrive on Saturday (Jul 11) at 3AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 6th Jul) | 3.5ft (1.0m) 7s |
| Best Surf | 3AM (Thu 9th Jul) | 5.5ft (1.7m) 15s |
| Most Powerful | 3AM (Sat 11th Jul) | 7ft (2.2m) 18s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here. Let's take a look at what we've got.
Right off the bat, the surf is not showing up for a few days. We've got a bit of a slow start, with the first real chance to get wet not coming until Monday afternoon, July 6th, but even then, it's pretty ordinary. The best bet around here is the Hanamizu River, a beach/sandbar setup that's fairly consistent and a good spot for beginners.
The water temp is sitting at about 75°, which is a touch cooler than usual for this time of year, but nothing crazy.
Monday, July 6th is a write-off. The morning has small 3ft swell from the SE with a short 7-second period, and a light cross-onshore breeze. The energy is weak (176), and the conditions are just poor. The afternoon goes glassy, but the swell drops to 3ft. It's surfable, but just barely.
Tuesday, July 7th is where things start to look up. The morning is the standout of the whole run. We've got a clean 2ft swell from the SSE, but the period jumps to a very long 15 seconds. That's a proper groundswell, and the energy is moderate (279). The wind is a light cross-offshore breeze from the NNE, which will keep the face clean. This is a river mouth, so that long period groundswell should wrap in nicely. For a beginner-friendly spot, this is about as good as it gets in this window. The afternoon gets a bit bigger at 3ft, but the wind shifts to a cross-shore, making it a bit more ordinary.
Wednesday, July 8th sees the swell building. The morning has 5ft from the SSE, with a 17-second period. The energy is getting strong (1532). That's a lot of water moving. The wind is a light cross-onshore, which isn't ideal, but the swell is there. The afternoon pushes to 6ft with a 16-second period, and the energy is even stronger (2432). The wind stays cross-onshore. This is getting into the "too big for beginners" territory, and the cross-onshore chop will make it a bit of a battle.
Thursday, July 9th through Saturday, July 11th has a solid run of swell. The mornings will see chest to head-high waves, around 6ft to 7ft, with a 15 to 17-second period from the S and SSW. The energy is strong to very strong, hitting 2635 on Saturday morning. The problem is the wind. It's a persistent cross-onshore breeze from the S and SE, 6-12 mph, which will keep the surface choppy and messy. The afternoon winds pick up even more. This is a lot of power, but the quality is going to be frustrating. The swell is big enough (over 7ft) that it's really only for experienced surfers, and the chop makes it a tough paddle.
Sunday, July 12th things start to drop. The swell is down to 5ft in the morning, but the wind is still a problem. The afternoon gets choppy and drops to 4ft.
From Monday, July 13th all the way through Tuesday, July 22nd, the outlook is pretty grim. The swell drops below 3ft, the period shortens, and the wind is mostly cross or cross-onshore. The energy values are all under 200, and most days are rated as "poor surf conditions." The only blips are a few glassy mornings on the 18th and 21st, but with tiny waves at 1.0ft to 2ft, there's just nothing to ride.
So, the honest truth is, this is a poor 16-day window for Hanamizu River. If you're desperate, get in the water on Tuesday morning, July 7th, for the cleanest, most fun waves for a beginner. The bigger swell days from the 8th to the 11th have the power, but the wind is going to trash them. After that, it's a flat spell. It's a blank run, and that's just how it goes sometimes around here. Forecasts can change, but right now, this is a tough one.
Stay salty.
Rusty
Short Range ForecastModerate rain (total 11mm), heaviest 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 23°C on Thu 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 14 | SSE 17 | SSE 16 | SSE 15 | S 15 | S 16 | S 15 | S 16 | S 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
89 | 77 | 138 | 201 | 443 | 328 | 1532 | 1631 | 1364 | 1280 | 1551 | 1492 | 1857 | 2062 | 1455 | 2635 | 2084 | 1245 | 941 | 487 | 198 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-off |
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 | 4 | 2 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 |
Temp °C | 22 | 23 | 22 | 24 | 26 | 23 | 24 | 25 | 23 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 25 | 26 | 23 |
Feels °C | 24 | 27 | 24 | 24 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 26 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 14 | SSE 15 | SSE 15 | SSE 14 | SSE 17 | SSE 16 | SSE 15 | S 15 | S 16 | S 15 | S 16 | S 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 |
31 | 31 | 138 | 201 | 443 | 328 | 1532 | 1631 | 1364 | 1280 | 1551 | 1492 | 1857 | 2062 | 1455 | 2635 | 2084 | 1245 | 941 | 487 | 198 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 14 | SE 7 | SE 12 | SSE 20 | SSE 18 | — | S 18 | — | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | SSW 18 | — | — | — | SE 14 | SE 11 | SSW 12 |
54 | 70 | 16 | 67 | 75 | 190 | — | 801 | — | 38 | 44 | 25 | 28 | 22 | 969 | — | — | — | 8 | 29 | 28 | |
Swell 3 Height (m) Direction Period (s) | SW 6 | SSE 16 | S 7 | SE 7 | — | SSE 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 9 | SE 10 |
2 | 27 | 1 | 11 | — | 102 | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 4 | |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | — | — | ESE 7 | — | — | — | — | — | — | — | — | — | — | — | — | S 3 | — | S 4 | SSW 4 |
89 | 77 | — | — | 38 | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 13 | 13 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 62 | 0 | 0 | 0 | 19 | 10 | 19 | 59 | 12 | 31 | 62 | 13 | 43 | 104 | 103 | 103 | 104 | 12 | 13 | 77 | 0 |
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.










