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Shonan surfForecast / Kanagawa / Japan
12 Day Weather and Surf, issued 8 am Sunday 04 May 2025 JST
Best Forecast Surf Conditions for Shonan this week:
The surf forecast for Shonan over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 04) at 6PM. The primary swell is predicted to be 2.0m and 6s period with a secondary swell of 1.3m and 6s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shonan in the next 12 days are 1.5m 9s and forecast to arrive on Saturday (May 10) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (May 08) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 4th May) | 6.5ft (2.0m) 6s |
| Best Surf | 6PM (Sun 4th May) | 6.5ft (2.0m) 6s |
| Most Powerful | 9PM (Sat 10th May) | 5ft (1.5m) 9s |
Table - best surf conditions forecast for Shonan over the next 12 days.
Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | 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) (?) | 7 | 6 | 7 | 7 | 6 | 6 | 5 | 4 | 6 | 8 | 8 | 8 | 7 | 7 | 6 | 13 | 13 | 4 | 6 | 7 | 9 | 8 | 5 | 7 | 6 | 6 | 6 | 5 | 16 | 6 | 10 | 4 | 4 | 4 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 134 | 166 | 61 | 5 | 4 | 4 | 7 | 5 | 5 | 53 | 205 | 85 | 25 | 9 | 8 | 7 | 7 | 7 | 24 | 315 | 348 | 207 | 151 | 99 | 41 | 13 | 11 | 2 | 11 | 4 | 4 | 18 | 31 | 33 | 81 | 58 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | on | cross- on | glass | glass | off | cross- off | cross- on | on | cross- off | cross- off | cross- on | on | on | on | on | on | cross- off | off | on | cross- on | cross- off | glass | cross- on | cross | cross- off | cross- on | on | cross- on | cross- on | cross- on | glass | cross- on | cross- on |
High Tide / height (m) | 12:31AM 1.20 | 8:42AM 1.15 | 1:17AM 1.23 | 11:35AM 1.07 | 1:46AM 1.27 | 1:27PM 1.11 | 2:09AM 1.31 | 2:33PM 1.19 | 2:31AM 1.35 | 3:22PM 1.26 | 2:52AM 1.39 | 4:04PM 1.33 | 3:14AM 1.42 | 4:41PM 1.38 | 3:36AM 1.44 | 5:17PM 1.41 | 4:00AM 1.46 | 5:53PM 1.41 | 4:25AM 1.47 | 6:30PM 1.38 | 4:52AM 1.47 | 7:10PM 1.35 | ||||||||||||||
Low Tide / height (m) | 3:52PM 0.41 | 5:13AM 1.11 | 5:15PM 0.52 | 7:17AM 0.97 | 6:34PM 0.59 | 8:02AM 0.80 | 7:33PM 0.64 | 8:35AM 0.65 | 8:19PM 0.68 | 9:04AM 0.50 | 8:57PM 0.72 | 9:31AM 0.37 | 9:32PM 0.76 | 9:59AM 0.26 | 10:04PM 0.81 | 10:27AM 0.18 | 10:33PM 0.85 | 10:57AM 0.13 | 11:02PM 0.90 | 11:29AM 0.11 | 11:31PM 0.94 | 12:03PM 0.12 | 12:00AM 0.98 | |||||||||||||
Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | |||||||||||||||||||||||||
| Sunrise | 4:48 | - | - | 4:47 | - | - | 4:46 | - | - | 4:45 | - | - | 4:43 | - | - | 4:43 | - | - | 4:43 | - | - | 4:41 | - | - | 4:41 | - | - | 4:39 | - | - | 4:39 | - | - | 4:37 | - | - |
| Sunset | - | 6:29 | - | - | 6:30 | - | - | 6:30 | - | - | 6:31 | - | - | 6:32 | - | - | 6:34 | - | - | 6:34 | - | - | 6:35 | - | - | 6:36 | - | - | 6:37 | - | - | 6:37 | - | - | 6:37 | - |
 | |  |  | | |  |  |  | | | | | | | | |  | |  | | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 16 | 10 | - | - | - | - | - | - | - | - | 14 | 17 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 23 | 17 | 19 | 19 | 18 | 17 | 14 | 15 | 19 | 20 | 17 | 17 | 17 | 16 | 17 | 18 | 17 | 15 | 16 | 16 | 19 | 21 | 20 | 20 | 20 | 19 | 24 | 23 | 20 | 23 | 23 | 19 | 22 | 21 | 20 |
| Feels °C (?) | 19 | 17 | 12 | 17 | 16 | 17 | 16 | 11 | 14 | 17 | 19 | 9 | 13 | 13 | 14 | 15 | 14 | 14 | 14 | 12 | 13 | 18 | 20 | 19 | 19 | 17 | 18 | 23 | 20 | 19 | 19 | 19 | 16 | 21 | 19 | 19 |
Short Range Forecast: Heavy rain (total 26mm), heaviest during Tue afternoon. Warm (max 23°C on Sun afternoon, min 13°C on Tue afternoon). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 14mm), heaviest on Fri night. Warm (max 20°C on Wed afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the NNE on Wed night, calm by Thu night). | Days 6-9 Weather Summary Moderate rain (total 19mm), heaviest on Sat morning. Warm (max 21°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 24°C on Tue morning, min 19°C on Tue night). Winds decreasing (fresh winds from the SSW on Wed afternoon, calm by Thu morning). | |||||||||||||||||||||||||||||||||
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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 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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