- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Hanamizu River surfForecast / Kanagawa / Japan
16 Day Weather and Surf, issued 8 am Wednesday 20 May 2026 JSTForecast update in hr min s Forecast update imminent
Hanamizu River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hanamizu River sea temperature is
19.6° C
(Which is 1.1°C colder than average for this time of year)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 (May 21) at 3PM. The primary swell is predicted to be 1.9m and 7s period with a secondary swell of 1.4m and 7s. 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 7s and forecast to arrive on Thursday (May 21) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (May 22) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Thu 21st May) | 6ft (1.9m) 7s |
| Best Surf | 3PM (Thu 21st May) | 6ft (1.9m) 7s |
| Most Powerful | 3PM (Thu 21st May) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Hanamizu River over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Thu night. Warm (max 27°C on Wed afternoon, min 13°C on Fri night). Winds increasing (light winds from the SSW on Thu morning, fresh winds from the NNE by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon afternoon, min 14°C on Sat morning). Winds decreasing (fresh winds from the NNE on Sat morning, calm by Mon night). | ||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SE 10 | S 4 | SE 10 | ESE 9 | SSW 7 | S 8 | S 7 | S 7 | SSW 8 | S 7 | ESE 11 | S 7 | SE 7 | SE 7 | SE 6 | SE 7 | SE 7 | S 7 | S 7 | SSE 6 | S 6 | |
28 | 30 | 14 | 56 | 356 | 115 | 52 | 15 | 7 | 5 | 12 | 4 | 7 | 7 | 6 | 7 | 7 | 40 | 24 | 13 | 18 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | glassy | |
High Tide | 8:39PM1.36m | 6:18AM1.47m | 9:39PM1.30m | 7:09AM1.36m | 10:39PM1.27m | 8:20AM1.23m | 11:32PM1.27m | 10:10AM1.11m | 00:15AM1.28m | 12:15PM1.08m | 00:51AM1.31m | 1:50PM1.13m | 1:23AM1.34m | ||||||||
Low Tide | 1:08PM-0.01m | 1:09AM1.09m | 1:59PM0.12m | 2:09AM1.08m | 2:55PM0.27m | 3:38AM1.04m | 3:57PM0.43m | 5:23AM0.94m | 5:03PM0.58m | 6:44AM0.78m | 6:10PM0.69m | 7:38AM0.62m | 7:11PM0.78m | ||||||||
 |  |  |  |  |  | |  |  | | |  | | |  | | | | | |  | |
 | 4:35 | — | — | 4:35 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:31 | — | — | 4:31 | — | — |
 | — | 6:43 | — | — | 6:44 | — | — | 6:44 | — | — | 6:45 | — | — | 6:45 | — | — | 6:46 | — | — | 6:46 | — |
— | — | 4 | 1 | 5 | 14 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | |
Temp °C | 26 | 27 | 23 | 22 | 20 | 17 | 15 | 14 | 14 | 18 | 19 | 17 | 20 | 22 | 20 | 22 | 23 | 20 | 23 | 23 | 21 |
25 | 26 | 23 | 24 | 21 | 15 | 10 | 8 | 9 | 13 | 15 | 14 | 18 | 21 | 20 | 22 | 22 | 21 | 24 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | ESE 9 | S 7 | S 8 | S 7 | S 7 | SSE 7 | S 7 | S 7 | ESE 6 | SE 7 | SE 7 | SE 6 | SE 7 | SE 7 | S 7 | S 7 | SSE 6 | S 6 |
 kJ | 28 | 16 | 14 | 56 | 187 | 115 | 52 | 15 | 5 | 4 | 4 | 4 | 7 | 7 | 6 | 7 | 7 | 40 | 24 | 13 | 18 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 4 | — | — | ESE 10 | SE 9 | SW 8 | SSW 8 | SE 11 | ESE 11 | S 7 | SE 10 | SE 10 | E 8 | SE 11 | SE 11 | E 10 | SE 10 | SE 10 | SE 11 |
| kJ | — | — | 6 | — | — | 35 | 3 | 9 | 7 | 5 | 12 | 4 | 4 | 4 | 1 | 5 | 5 | 2 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | S 6 | — | — | — | E 11 | SE 11 | E 11 | SW 8 | S 7 | SE 10 | — | — | SE 11 | S 6 | S 8 | E 9 | E 15 | SE 10 | E 10 |
| kJ | — | — | 1 | — | — | — | 2 | 5 | 2 | 2 | 1 | 4 | — | — | 5 | 1 | 1 | 14 | 4 | 4 | 2 |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 4 | S 6 | SSW 7 | NE 3 | NNE 3 | NNE 4 | NNE 4 | NNE 4 | NNE 3 | NNE 3 | N 3 | NNE 3 | — | — | — | — | — | — | — |
| kJ | 9 | 30 | 9 | 36 | 356 | 4 | 10 | 25 | 16 | 16 | 8 | 8 | 6 | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 77 | 253 | 12 | 13 | 0 | 77 | 444 | 461 | 461 | 779 | 59 | 59 | 12 | 87 | 12 | 41 | 43 | 10 | 41 | 1403 | 43 |
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)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hanamizu River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest