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Surf Forecasts:
Shonan surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Wednesday 25 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
15.2° C
(Which is 1.8°C colder than average for this time of year)How big are the waves at Shonan today?
The current surf forecast for Shonan at 2AM is: 1.9m 7s primary swell from a South-southeast direction and 1.2m 7s secondary swell from a South-southeast direction, 0.1m 12s secondary swell from a South direction (forecast issued at 08:00pm March 25). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Mar) | 4.5ft (1.3m) | 8s |
| Afternoon (26 Mar) | 4.5ft (1.3m) | 10s |
| Evening (26 Mar) | 4.5ft (1.3m) | 10s |
Table - waves today at Shonan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| 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) (?) | 6 | 6 | 7 | 7 | 8 | 8 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 85 | 129 | 285 | 383 | 432 | 197 | 301 | 339 | 296 | 296 | 192 | 154 | 101 | 65 | 50 | 26 | 17 | 11 | 10 | 10 | 10 | 10 | 6 | 6 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross | glass | on | on | cross | cross | cross- off | glass | cross- on | cross- on |
High Tide / height (m) | 12:17AM 1.13 | 7:43AM 1.36 | 8:24AM 1.24 | 3:14AM 1.28 | 12:12PM 1.17 | |||||||||||||||||||
Low Tide / height (m) | 3:15PM 0.30 | 1:10AM 1.13 | 4:48PM 0.39 | 6:41PM 0.41 | 8:27AM 1.09 | |||||||||||||||||||
Wed 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:35 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:59 |
 |  | | |  | | | |  |  | | |  |  | | | | |  | | | | | | |
Rain (mm) | 8 | 5 | 3 | 6 | 5 | 3 | 1 | 1 | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - |
| Temp. °C | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 12 | 14 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 15 |
| Feels °C (?) | 8 | 8 | 9 | 8 | 8 | 7 | 8 | 8 | 7 | 7 | 6 | 6 | 7 | 8 | 11 | 13 | 12 | 11 | 10 | 10 | 11 | 12 | 11 | 11 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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