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Surf Forecasts:
Osaki surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Friday 20 Mar 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
15.4° C
(Which is 1.5°C colder than average for this time of year)How big are the waves at Osaki today?
The current surf forecast for Osaki at 4AM is: 0.4m 7s primary swell from a Southwest direction and 0.2m 7s secondary swell from a South direction (forecast issued at 08:00pm March 20). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 0.5ft (0.2m) | 6s |
| Afternoon (21 Mar) | 0.5ft (0.1m) | 17s |
| Evening (21 Mar) | 0.5ft (0.1m) | 16s |
Table - waves today at Osaki. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 6 | 6 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 3 | 4 | 4 | 6 | 6 | 6 | 6 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 15 | 15 | 8 | 12 | 3 | 3 | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 14 | 15 | 11 | 14 | 18 | 22 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | off | off | off | on | on | on | on | cross- on | off | off | off | glass | on | cross- on | cross- on | cross- on | cross- on | cross | glass | on | glass |
High Tide / height (m) | 6:14PM 1.40 | 6:11AM 1.33 | 6:58PM 1.37 | 6:34AM 1.34 | 7:43PM 1.30 | 6:58AM 1.34 | ||||||||||||||||||
Low Tide / height (m) | 12:17AM 0.39 | 12:31PM 0.17 | 12:47AM 0.50 | 1:08PM 0.12 | 1:17AM 0.62 | 1:48PM 0.10 | ||||||||||||||||||
Fri 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:41 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:54 |
 |  | | |  | | | | | | |  |  | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 10 | 9 | 8 | 5 | 7 | 9 | 10 | 11 | 12 | 12 | 10 | 9 | 10 | 12 | 13 | 14 | 13 | 13 | 13 | 12 | 12 | 13 | 12 |
| Feels °C (?) | 9 | 4 | 5 | 0 | -3 | 2 | 5 | 4 | 5 | 6 | 8 | 5 | 3 | 4 | 10 | 8 | 7 | 7 | 8 | 8 | 7 | 10 | 9 | 10 |
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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 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.
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