
Surf Forecasts:
Hanamizu River surf forecast from 6 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 6AM (local time) - 4.5ft (1.4m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 6PM (local time) - 10ft (3.0m), 9s period, S swell with 1,397 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 6AM (local time) - 4.5ft (1.4m), 9s 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 Tuesday (Sep 08) at 6AM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.9m and 10s. 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 3.0m 9s and forecast to arrive on Monday (Sep 07) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Sunday (Sep 06) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 8th Sep) | 4.5ft (1.4m) 9s |
| Best Surf | 6AM (Tue 8th Sep) | 4.5ft (1.4m) 9s |
| Most Powerful | 6PM (Mon 7th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s coming up for Hanamizu River over the next couple of weeks.
Alright, straight up, I gotta be honest with you – this is a pretty flat run for Hanamizu River. The next couple of weeks are looking grim, with barely a bump to get excited about. There’s a bit of a pulse coming in early next week, but even that comes with some serious caveats. Let’s break it down.
The first real surfable window pops up on Monday afternoon, September 7th. We’ve got a solid 8ft swell rolling in from the south, but the period is only 9 seconds, so it’s a bit on the weak side for that size. The wind is light cross-shore from the SW, so the surface will have a bit of chop, but it’s not a total write-off. Combined wave energy is moderate at 933. The problem? That swell is pretty big – over 5ft – so it’s going to be too much for beginners. This is more of a look-and-see session.
Tuesday morning, September 8th, is probably your best bet in this whole outlook. The swell drops right back to a clean 3ft from the south, still with that 9-second period. The wind is dead calm – glassy conditions – and the wave energy is moderate at 310. It’s a beginner-friendly size, and with the glassy surface, it’ll be clean. This is the standout for the period, no doubt.
After that, it’s mostly downhill. Wednesday morning, September 9th, has 5ft SSW swell with 10-second period and light cross-shore wind, so it’s a bit lumpy (wave energy 523). Wednesday afternoon pumps up to 10ft from the SSW, but that’s only for experts – and with 9-second period and cross-shore wind, it’s going to be a mess. Definitely not for the faint-hearted.
From Thursday, September 10th onwards, it’s a long, slow fade. The swell drops below 3ft and stays there, with tiny, weak waves and periods of 7 to 10 seconds. Winds are mostly light or cross-off, so the surface stays clean, but there’s just no energy. The combined wave energy drops to two-digit numbers (like 22, 26, 32) by the weekend, which is basically flat.
By the time we get to the second week (from around September 14th), the numbers are sad: 1ft or 1.0ft, periods under 10 seconds, and wave energy under 100. Even the glassy conditions on September 16th can’t save it – 2ft swell with 7-second period is not worth paddling out for.
So, to sum it up: if you’re keen, hit that Tuesday morning session (September 8th) – it’s the only real highlight. After that, it’s a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 362mm), heaviest during Sun night. Warm (max 27°C on Tue afternoon, min 20°C on Sun afternoon). Winds decreasing (fresh winds from the S on Sun night, calm by Tue morning). | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Wed night. Warm (max 27°C on Wed afternoon, min 21°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 8 | SE 8 | S 9 | S 9 | S 9 | S 9 | SSE 8 | SSW 9 | SSW 10 | SSW 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 8 | S 8 | SSW 8 |
Wave Graph | ||||||||||||||||||||
30 | 211 | 1138 | 921 | 471 | 176 | 120 | 124 | 399 | 1188 | 320 | 111 | 82 | 41 | 27 | 17 | 18 | 20 | 10 | 11 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross | cross | glassy | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 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 | 4:15AM1.53m | 5:05PM1.49m | 4:59AM1.54m | 5:24PM1.50m | |||||||
Low Tide | 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 | 10:43AM0.24m | 10:57PM0.49m | 11:14AM0.34m | 11:29PM0.37m | |||||||
— | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | |
6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 5:58 | — | — | 5:57 | — | — | 5:54 | — | |
mm | 106 | 218 | 26 | 3 | 3 | 1 | 1 | 4 | — | 3 | 17 | 1 | — | 3 | — | — | — | — | — | — |
Temp °C | 21 | 25 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 22 | 22 | 22 | 21 | 21 | 23 | 23 | 24 | 26 | 24 |
Feels °C | 20 | 25 | 28 | 30 | 30 | 30 | 30 | 32 | 30 | 31 | 21 | 23 | 23 | 22 | 23 | 25 | 25 | 25 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 8 | S 9 | S 9 | E 8 | S 9 | S 9 | SSE 8 | SSW 9 | SSE 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 8 | S 8 | SSW 8 |
30 | 81 | 565 | 12 | 471 | 176 | 120 | 124 | 108 | 683 | 320 | 111 | 82 | 41 | 27 | 17 | 18 | 20 | 10 | 11 | |
Swell 2 Height (m) Direction Period (s) | SW 9 | — | — | — | SSW 11 | SSE 9 | SSW 10 | ESE 10 | ESE 10 | — | ESE 11 | E 11 | — | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 8 | SSE 7 |
3 | — | — | — | 24 | 124 | 98 | 10 | 10 | — | 11 | 2 | — | 3 | 4 | 4 | 4 | 4 | 7 | 5 | |
Swell 3 Height (m) Direction Period (s) | SW 10 | — | — | — | ESE 10 | ESE 10 | ESE 10 | E 18 | E 17 | — | E 16 | — | E 15 | E 16 | S 9 | S 8 | S 8 | S 8 | E 14 | — |
4 | — | — | — | 10 | 10 | 10 | 6 | 6 | — | 5 | — | 17 | 5 | 1 | 1 | 1 | 1 | 4 | — | |
Wind waves Height (m) Direction Period (s) | NNE 4 | SE 8 | S 9 | S 9 | — | — | — | SSE 8 | SSW 10 | SSW 9 | NE 3 | ENE 2 | — | NE 2 | — | — | NNE 2 | NE 2 | E 4 | ESE 4 |
35 | 211 | 1138 | 921 | — | — | — | 112 | 399 | 1188 | 2 | 1 | — | 1 | — | — | 1 | 1 | 1 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 463 | 461 | 112 | 13 | 76 | 0 | 43 | 13 | 112 | 13 | 76 | 0 | 0 | 12 | 69 | 41 | 69 | 69 | 69 | 12 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










