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Surf Forecasts:
Shonan surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Saturday 21 Mar 2026 JSTForecast update in hr min s Forecast update imminent
Shonan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shonan sea temperature is
15.5° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Shonan today?
The current surf forecast for Shonan at 11PM is: 0.1m 16s primary swell from a Southeast direction and 0.5m 4s secondary swell from a South direction, 0.5m 3s secondary swell from a South-southwest direction (forecast issued at 08:00pm March 21). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | - | - |
| Afternoon (21 Mar) | - | - |
| Evening (21 Mar) | 0.5ft (0.1m) | 16s |
Table - waves today at Shonan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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) (?) | 16 | 16 | 4 | 4 | 16 | 16 | 16 | 15 | 15 | 3 | 4 | 15 | 5 | 5 | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 10 | 10 | 17 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 8 | 11 | 12 | 13 | 22 | 56 | 66 | 103 | 86 | 72 | 57 | 46 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- off | cross- off | off | cross- off | on | cross- on | cross | cross | cross | cross- off | off | cross- off | cross- on | on | glass | glass | cross- off | cross- off | cross- off | cross- off | on | cross- on |
High Tide / height (m) | 6:32PM 1.51 | 6:04AM 1.55 | 7:20PM 1.43 | 6:27AM 1.54 | 8:14PM 1.31 | 6:50AM 1.50 | ||||||||||||||||||
Low Tide / height (m) | 12:15AM 0.61 | 12:44PM 0.14 | 12:43AM 0.76 | 1:25PM 0.15 | 1:09AM 0.90 | 2:13PM 0.21 | ||||||||||||||||||
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:41 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:55 |
 | | | |  | |  | |  | | | | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 12 | 10 | 9 | 10 | 12 | 13 | 14 | 13 | 13 | 12 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 11 | 13 | 14 | 14 |
| Feels °C (?) | 8 | 9 | 10 | 4 | 4 | 6 | 8 | 8 | 9 | 8 | 9 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 10 | 9 | 7 | 10 | 11 | 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 Shonan 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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