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Shonan surfForecast / Kanagawa / Japan
12 Day Weather and Surf, issued 2 am Saturday 06 Sep 2025 JST
Best Forecast Surf Conditions for Shonan this week:
The most powerful waves expected at Shonan in the next 12 days are 0.9m 9s and forecast to arrive on Saturday (Sep 06) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Sep 11) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Sat 6th Sep) | 3ft (0.9m) 9s |
Table - best surf conditions forecast for Shonan over the next 12 days.
Short Range Forecast Some drizzle, heaviest during Mon night. Warm (max 30°C on Mon afternoon, min 25°C on Sat morning). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Thu morning. Warm (max 29°C on Tue afternoon, min 22°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 9 | 8 | 8 | 7 | 10 | 4 | 4 | 5 | 6 | 6 | 6 | 7 | 7 | 10 | 10 | 6 | 7 | 7 | 7 | 12 | 6 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 134 | 90 | 49 | 33 | 46 | 27 | 28 | 19 | 33 | 14 | 24 | 8 | 7 | 6 | 5 | 5 | 4 | 3 | 3 | 6 | 9 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | on | cross- on | glass | cross- on | cross- off | cross- off | glass | glass | cross | cross- on | cross- off | cross- off | cross | cross- off | cross- off | cross- on | cross |
High Tide / height (m) | 4:43PM 1.46 | 3:48AM 1.48 | 5:03PM 1.50 | 4:32AM 1.54 | 5:24PM 1.53 | 5:16AM 1.56 | 5:45PM 1.54 | 6:02AM 1.54 | 6:07PM 1.54 | 6:49AM 1.47 | 6:28PM 1.54 | 7:41AM 1.36 | 6:51PM 1.51 | ||||||||
Low Tide / height (m) | 9:53AM 0.17 | 10:15PM 0.76 | 10:28AM 0.15 | 10:46PM 0.62 | 11:01AM 0.19 | 11:18PM 0.48 | 11:33AM 0.29 | 11:52PM 0.35 | 12:04PM 0.43 | 12:28AM 0.26 | 12:34PM 0.59 | 1:08AM 0.21 | 1:01PM 0.76 | 1:53AM 0.23 | |||||||
Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||
| Sunrise | 5:16 | - | - | 5:18 | - | - | 5:18 | - | - | 5:18 | - | - | 5:20 | - | - | 5:20 | - | - | 5:20 | - | - |
| Sunset | - | 6:02 | - | - | 6:01 | - | - | 6:00 | - | - | 5:59 | - | - | 5:57 | - | - | 5:55 | - | - | 5:54 | - |
 | |  |  | | | | |  | | |  | | |  |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | 5 | 10 | - | - | - | - | - |
| Temp. °C | 26 | 26 | 25 | 28 | 28 | 27 | 29 | 30 | 29 | 28 | 29 | 26 | 28 | 28 | 26 | 23 | 24 | 23 | 27 | 28 | 25 |
| Feels °C (?) | 29 | 27 | 26 | 29 | 28 | 29 | 33 | 33 | 33 | 30 | 32 | 28 | 29 | 29 | 28 | 25 | 26 | 25 | 27 | 30 | 28 |
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Recent Eyeball Surf Reports for Kanagawa
Continuing clean conditions at Shonan (calm at Zushi Kanagawa 12 km from Shonan). A 1.1m swell from the S
1 h 4 min ago
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.
Information about the Shonan Surf forecast
The above surf forecast table for Shonan provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Shonan can be found by selecting the local surf guide option on the grey menu. Our Shonan 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 (Shonan) 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 Shonan 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.
Shonan is 4 km (2 miles) from the city of Chigasaki. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Chigasaki. Chigasaki has rooms for a wide range of budgets as well as car hire and transport links.
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