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Surf Forecasts:
Sakawa River surfForecast / Kanagawa / Japan
16 Day Weather and Surf, issued 8 am Thursday 21 May 2026 JSTForecast update in hr min s Forecast update imminent
Sakawa River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sakawa River sea temperature is
19.7° C
(Which is 1.3°C colder than average for this time of year)Best Forecast Surf Conditions for Sakawa River this week:
The surf forecast for Sakawa 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 2.0m and 7s period with a secondary swell of 1.5m and 7s. Another secondary swell of 0.5m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sakawa River in the next 16 days are 2.5m 8s and forecast to arrive on Thursday (May 28) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Friday (May 22) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Thu 21st May) | 6.5ft (2.0m) 7s |
| Best Surf | 3PM (Thu 21st May) | 6.5ft (2.0m) 7s |
| Most Powerful | 9AM (Thu 28th May) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Thu afternoon. Warm (max 22°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 72mm), heaviest during Tue night. Warm (max 25°C on Mon morning, min 17°C on Sun morning). Winds increasing (calm on Sun afternoon, fresh winds from the SSW by Tue night). | ||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
S 6 | SSW 7 | S 8 | S 8 | SE 10 | ESE 10 | E 10 | ESE 10 | ESE 6 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | S 7 | S 7 | S 7 | |
126 | 404 | 100 | 55 | 27 | 30 | 56 | 20 | 65 | 128 | 244 | 193 | 128 | 86 | 62 | 41 | 44 | 38 | 295 | 376 | 302 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | glassy | cross-off | cross | cross-on | cross-off | glassy | cross-on | cross-on | cross | cross | cross | |
High Tide | 9:39PM1.30m | 7:10AM1.36m | 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 | 2:57PM1.20m | 1:53AM1.37m | ||||||||
Low Tide | 1:59PM0.12m | 2:10AM1.08m | 2:55PM0.27m | 3:38AM1.04m | 3:57PM0.43m | 5:23AM0.94m | 5:03PM0.58m | 6:43AM0.78m | 6:10PM0.69m | 7:38AM0.62m | 7:11PM0.78m | 8:20AM0.47m | 8:04PM0.85m | ||||||||
 |  |  | | |  |  |  |  | | |  |  | |  |  |  |  | | |  | |
 | 4:35 | — | — | 4:35 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:31 | — | — | 4:31 | — | — |
 | — | 6:44 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — |
4 | 8 | 6 | 1 | 1 | — | — | — | 2 | 2 | — | — | — | — | — | 1 | 14 | 55 | 8 | 3 | 4 | |
Temp °C | 22 | 21 | 17 | 16 | 14 | 13 | 16 | 18 | 18 | 18 | 18 | 19 | 25 | 23 | 22 | 23 | 22 | 23 | 23 | 23 | 23 |
24 | 23 | 16 | 13 | 10 | 8 | 12 | 16 | 17 | 19 | 19 | 19 | 26 | 24 | 24 | 26 | 24 | 22 | 23 | 23 | 26 | |
Swell 1 Height (m) Direction Period (s) | S 6 | S 7 | S 8 | S 8 | S 7 | ESE 10 | E 10 | ESE 7 | ESE 10 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | S 6 | ESE 8 | SE 9 | ESE 10 |
 kJ | 60 | 233 | 100 | 55 | 27 | 30 | 56 | 20 | 19 | 128 | 244 | 193 | 128 | 86 | 62 | 41 | 44 | 24 | 14 | 20 | 18 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | SE 10 | ESE 10 | SE 10 | SE 10 | E 6 | SE 7 | ESE 10 | SE 12 | ESE 12 | SSE 7 | — | SSW 6 | S 8 | SSW 8 | S 7 | SSW 7 | ESE 8 | ESE 10 | ESE 14 | SE 13 |
| kJ | 60 | 47 | 37 | 23 | 24 | 6 | 2 | 18 | 6 | 13 | 181 | — | 3 | 29 | 48 | 26 | 15 | 38 | 10 | 19 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SE 8 | S 7 | S 7 | SE 11 | — | E 10 | E 9 | — | E 16 | SE 10 | E 15 | ESE 10 | SE 10 | ESE 10 | SE 14 | — | SE 10 |
| kJ | — | — | — | — | 3 | 4 | 1 | 5 | — | 45 | 64 | — | 5 | 4 | 5 | 10 | 16 | 10 | 8 | — | 4 |
Wind waves Height (m) Direction Period (s) | S 6 | SSW 7 | NE 4 | NE 4 | NNE 5 | NE 5 | NE 4 | NE 4 | ESE 6 | NNE 4 | N 3 | — | — | — | — | — | — | — | S 7 | S 7 | S 7 |
| kJ | 126 | 404 | 10 | 16 | 52 | 70 | 46 | 11 | 65 | 10 | 6 | — | — | — | — | — | — | — | 295 | 376 | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 454 | 0 | 66 | 111 | 472 | 718 | 761 | 849 | 0 | 0 | 0 | 0 | 31 | 50 | 0 | 53 | 804 | 2002 | 454 | 454 | 433 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Sakawa 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 Sakawa River Surf forecast
The above surf forecast table for Sakawa River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sakawa River can be found by selecting the local surf guide option on the grey menu. Our Sakawa 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 (Sakawa 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 Sakawa 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.
Sakawa River is 2 km (1 miles) from Odawara. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Odawara. Odawara has rooms for a wide range of budgets as well as car hire and transport links.
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