Surf Forecasts:
Hanamizu River surf forecast from 14 Jul 2026:
- Best quality surf: Thursday 16 Jul, 6AM (local time) - 3ft (0.9m), 5s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 15 Jul, 3PM (local time) - 2.5ft (0.7m), 9s period, S swell with 81 kJ wave energy.
- Next surfable swell (1★+): Thursday 16 Jul, 6AM (local time) - 3ft (0.9m), 5s period with SSW 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 Thursday (Jul 16) at 6AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.7m and 5s. Another secondary swell of 0.2m and 9s 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 0.7m 9s and forecast to arrive on Wednesday (Jul 15) 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+) | 6AM (Thu 16th Jul) | 3ft (0.9m) 5s |
| Best Surf | 6AM (Thu 16th Jul) | 3ft (0.9m) 5s |
| Most Powerful | 3PM (Wed 15th Jul) | 2.5ft (0.7m) 9s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this 16-day window for Hanamizu River is a tough one. We’re looking at a long stretch of small, weak, and mostly messy surf. The combined wave energy barely cracks the 100 mark, and even then it’s weak (sitting around 100). The water is a bit colder than normal for this time of year, about 76°, so a degree off the average – you’ll feel that chill.
The first few days are a write-off. Tuesday morning (14th July) sees a tiny 2ft swell from the SSW with a period of 11 seconds, but the winds are light onshore, making it look poor. That sets the tone for the rest of the week – nothing but small, choppy, cross-onshore junk. Thursday morning (16th July) goes glassy with a 3ft SSW swell, but the period is a short 5 seconds, so it’s gutless and won’t hold shape. The energy is still weak (64).
The pattern continues through the weekend and into the next week. We’re talking swell heights between 0.3ft and 1ft, with periods all over the place but mostly short. The wind stays cross-on or onshore, so don’t expect a clean wave. There’s a gap of several days here where you’d be lucky to get a rideable lump.
The only real glimmer comes right at the end of the window. On Tuesday morning, 28th July, we finally see a slight bump in energy – a 2ft swell from the SSE with a period of 11 seconds, and the combined energy climbs to 125, which is at least moderate. The wind goes cross-shore, which is the best we’ve seen. It’s still not a standout by any stretch, but it’s the best on offer. Keep in mind this is a beach/sandbar break that’s fairly consistent but can get crowded sometimes. The swell direction is SSE, and the optimum for this spot is SE, so it’s close but not a perfect match. It’s really only for beginners or those desperate for a small, cleanish session.
Honestly, this setup looks more interesting for kite surfing than paddle surfing, given the persistent small, choppy conditions. For the rest of the 16 days, you’re better off waiting for the next forecast update.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu night. Warm (max 29°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Fri night. Warm (max 29°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | SSW 11 | SSW 10 | SSW 10 | SSW 9 | S 9 | SSW 4 | SSW 5 | S 5 | S 4 | SSW 8 | SSW 8 | SE 10 | SE 9 | SE 8 | SE 8 | SE 8 | SE 10 | SSE 9 | SSE 9 | S 8 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 91 | 59 | 38 | 34 | 81 | 24 | 35 | 12 | 8 | 6 | 6 | 17 | 29 | 25 | 17 | 16 | 24 | 33 | 16 | 12 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | glassy |
High Tide | 5:59PM1.48m | 4:02AM1.56m | 6:34PM1.48m | 4:55AM1.57m | 7:05PM1.46m | 5:45AM1.54m | 7:33PM1.44m | 6:35AM1.46m | 7:58PM1.42m | 7:26AM1.35m | 8:23PM1.40m | 8:21AM1.23m | 8:47PM1.39m | ||||||||
Low Tide | 10:37AM-0.09m | 10:53PM1.03m | 11:23AM-0.09m | 11:35PM0.95m | 12:05PM-0.03m | 00:17AM0.86m | 12:43PM0.08m | 1:00AM0.77m | 1:19PM0.24m | 1:45AM0.69m | 1:50PM0.42m | 2:33AM0.63m | 2:19PM0.59m | ||||||||
 | |  | | |  | |  |  | | | |  | | | | | | | | | |
 | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | 4:41 | — | — |
 | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — |
mm | — | — | — | — | — | — | — | 2 | 7 | 2 | 3 | 9 | 1 | — | — | 1 | 1 | — | — | — | — |
Temp °C | 28 | 29 | 27 | 28 | 28 | 27 | 29 | 29 | 27 | 28 | 29 | 25 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 28 | 26 |
Feels °C | 31 | 31 | 30 | 32 | 30 | 30 | 33 | 33 | 33 | 33 | 33 | 30 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SE 9 | SSW 9 | S 5 | SSW 8 | SSW 8 | S 4 | SSW 8 | SE 4 | SE 9 | SE 8 | SE 8 | SE 8 | SE 10 | SSE 9 | SSE 9 | SSE 8 | SSE 8 |
| kJ | 91 | 59 | 38 | 34 | 3 | 8 | 19 | 7 | 6 | 3 | 6 | 3 | 29 | 25 | 17 | 16 | 24 | 33 | 16 | 7 | 6 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 10 | SE 10 | S 13 | SE 9 | SSW 8 | SE 10 | SE 10 | SSW 8 | SE 9 | SE 10 | SW 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 3 | 3 | 4 | 4 | 4 | 3 | 7 | 4 | 4 | 6 | 3 | 16 | 2 | 2 | 6 | 6 | 5 | 5 | 6 | 12 | 5 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | S 14 | S 14 | SSE 9 | S 13 | SE 9 | SE 8 | — | SE 9 | E 10 | SSW 8 | S 10 | SW 7 | S 7 | SSE 4 | S 7 | S 10 | — | SE 11 | — |
| kJ | 6 | 6 | 4 | 4 | 8 | 3 | 3 | 3 | — | 3 | 2 | 6 | 2 | 2 | 1 | 2 | 1 | 2 | — | 5 | — |
Wind waves Height (m) Direction Period (s) | — | S 2 | SSW 3 | S 3 | S 9 | SSW 4 | SSW 5 | S 5 | S 4 | SSE 4 | SSE 4 | SE 5 | SE 4 | SSE 4 | SSE 4 | — | S 3 | S 3 | — | — | — |
| kJ | — | 1 | 3 | 1 | 81 | 24 | 35 | 12 | 8 | 3 | 3 | 17 | 9 | 10 | 4 | — | 1 | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 103 | 77 | 77 | 104 | 444 | 10 | 77 | 41 | 41 | 62 | 62 | 43 | 41 | 59 | 41 | 62 | 62 | 69 | 69 | 69 |
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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