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Surf Forecasts:
Osaki surfForecast / Kanagawa / Japan
16 Day Weather and Surf, issued 8 pm Sunday 17 May 2026 JSTForecast update in hr min s Forecast update imminent
Osaki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Osaki sea temperature is
19.7° C
(Which is slightly cooler than normal)Best Forecast Surf Conditions for Osaki this week:
The surf forecast for Osaki over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 25) at 3AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.5m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Osaki in the next 16 days are 0.9m 7s and forecast to arrive on Monday (May 25) at 3AM. Winds are predicted to be 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 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 25th May) | 3ft (0.9m) 7s |
| Best Surf | 3AM (Mon 25th May) | 3ft (0.9m) 7s |
| Most Powerful | 3AM (Mon 25th May) | 3ft (0.9m) 7s |
Table - best surf conditions forecast for Osaki over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Wed afternoon. Warm (max 22°C on Tue afternoon, min 18°C on Wed morning). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Wed afternoon). | Days 5-7 Weather SummaryHeavy rain (total 37mm), heaviest during Thu night. Warm (max 22°C on Sat afternoon, min 13°C on Thu night). Winds increasing (light winds from the ENE on Wed night, strong winds from the N by Thu night). | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SE 8 | SSE 8 | SE 10 | SE 7 | SE 10 | S 4 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | ESE 10 | ESE 9 | SE 8 | SE 9 | SE 9 | ESE 8 | SE 8 | SE 6 | SSE 6 | |
11 | 6 | 16 | 12 | 29 | 27 | 29 | 28 | 26 | 23 | 21 | 12 | 9 | 8 | 24 | 27 | 50 | 28 | 18 | 10 | 10 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross-on | on | on | on | on | on | on | glassy | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | glassy | glassy | |
High Tide | 4:38AM1.42m | 7:00PM1.37m | 5:10AM1.43m | 7:46PM1.35m | 5:44AM1.42m | 8:34PM1.32m | 6:22AM1.38m | 9:23PM1.28m | 7:05AM1.31m | 10:14PM1.25m | 7:58AM1.23m | 11:05PM1.24m | 9:12AM1.13m | ||||||||
Low Tide | 11:23PM0.86m | 11:49AM-0.09m | 11:59PM0.91m | 12:29PM-0.09m | 00:37AM0.95m | 1:09PM-0.06m | 1:18AM0.98m | 1:53PM0.01m | 2:07AM0.99m | 2:39PM0.11m | 3:10AM0.97m | 3:31PM0.23m | 4:29AM0.92m | 4:29PM0.36m | |||||||
 |  | | | | |  |  |  |  | |  |  | |  | | |  |  | | | |
 | — | 4:35 | — | — | 4:35 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:31 | — | — | 4:31 | — |
 | 6:38 | — | 6:39 | — | — | 6:40 | — | — | 6:42 | — | — | 6:42 | — | — | 6:43 | — | — | 6:44 | — | — | 6:45 |
— | — | — | — | — | — | — | 2 | 6 | 1 | 5 | 12 | 17 | 2 | — | — | — | — | — | — | — | |
Temp °C | 20 | 21 | 21 | 20 | 21 | 22 | 21 | 20 | 18 | 18 | 17 | 16 | 14 | 13 | 16 | 16 | 20 | 22 | 20 | 20 | 20 |
19 | 16 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 19 | 16 | 12 | 7 | 5 | 9 | 10 | 16 | 20 | 19 | 21 | 22 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SSE 8 | SE 8 | SSE 7 | SE 10 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | S 6 | SSE 7 | SSE 7 | SE 8 | SE 9 | SE 9 | ESE 8 | SE 6 | SE 6 | ESE 9 |
 kJ | 11 | 6 | 9 | 5 | 28 | 18 | 29 | 28 | 26 | 23 | 21 | 12 | 4 | 4 | 24 | 27 | 50 | 28 | 9 | 9 | 7 |
Swell 2 Height (m) Direction Period (s) | SE 12 | ESE 8 | SE 10 | ESE 10 | ESE 9 | E 10 | — | — | S 9 | S 8 | S 7 | SE 9 | SSW 7 | ESE 9 | N 6 | S 7 | — | SSE 6 | SE 8 | ESE 10 | E 12 |
| kJ | 5 | 6 | 4 | 10 | 29 | 8 | — | — | 2 | 1 | 1 | 12 | 4 | 8 | 1 | 1 | — | 8 | 18 | 10 | 3 |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | SE 10 | SE 7 | — | — | — | — | S 9 | S 6 | S 8 | E 6 | ESE 10 | NW 6 | — | — | — | — | — | — | — |
| kJ | — | 4 | 16 | 12 | — | — | — | — | 2 | 1 | 1 | 7 | 9 | 1 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | S 3 | SSW 3 | SSW 3 | S 4 | SSW 4 | SSW 4 | S 4 | — | NE 2 | NE 3 | NE 4 | NNE 4 | NNE 4 | NNE 3 | NNE 3 | — | ENE 2 | — | SSE 6 |
| kJ | — | — | 4 | 3 | 4 | 27 | 13 | 6 | 5 | — | 1 | 4 | 14 | 30 | 15 | 8 | 4 | — | 1 | — | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 15 | 76 | 76 | 77 | 77 | 38 | 38 | 15 | 50 | 248 | 248 | 489 | 470 | 470 | 552 | 1 | 54 | 37 | 15 | 15 |
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 Osaki 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 Osaki Surf forecast
The above surf forecast table for Osaki provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Osaki can be found by selecting the local surf guide option on the grey menu. Our Osaki 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 (Osaki) 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 Osaki 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.
Osaki is 2 km (1 miles) from the city of Zushi. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Zushi. Zushi has rooms for a wide range of budgets as well as car hire and transport links.
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