Surf Forecasts:
Shichirigahama surf forecast from 29 Aug 2026:
- Most powerful swell: Wednesday 2 Sep, 6PM (local time) - 2ft (0.6m), 8s period, S swell with 50 kJ wave energy.
Best Forecast Surf Conditions for Shichirigahama this week:
The most powerful waves expected at Shichirigahama in the next 16 days are 0.6m 8s and forecast to arrive on Wednesday (Sep 02) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Saturday (Sep 05) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Wed 2nd Sep) | 2ft (0.6m) 8s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s run through the same forecast in feet and miles, but the story doesn’t change. It’s a long, flat spell for Shichigahama.
We’ve got a big gap from now through the 7th of September. The swell is tiny, barely 1 to 2 feet, with short periods and weak energy readings in the double digits (13 to 94). The water temperature is about average for the time of year. The wind is often clean or offshore in the mornings, but with waves that small, it’s just a lake – not worth getting wet.
The first sign of life comes on the 8th of September, with a 3-foot swell from the SE at 12 seconds. The energy jumps to 245, which is moderate, but the conditions are still described as "ordinary". The 9th and 10th are cleaner, but the wind is blowing 25 mph from the north, making it hard to paddle into even with 3 to 3-foot waves.
The 11th of September has a 3-foot SSW swell at 13 to 14 seconds, with energy readings of 412 and 439. The wind is offshore, so it’s clean, but the wave comment still says "poor surf conditions". The swell is there, but it’s not working well for this river break.
The best option is the 14th of September Monday morning. The swell is 4 feet from the SSW at 12 seconds, with a combined energy of 374 (moderate). The wind is a glassy offshore breeze at just 3 mph, and for the first time, the forecast says "expect good surf conditions". That’s your window. The wave height is fine for most surfers, and the direction lines up perfectly with what this break likes. Crowds are possible, but not guaranteed.
The 12th and 13th of September are a total loss with gale-force winds, rain, and a 5 to 6-foot swell that’s completely blown out. The energy is massive (1071 to 1425), but it’s for the kite surfers, not for us.
So, the only real day to target is the 14th of September. Everything before that is a long, flat wait. Don’t rush it.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 28°C on Tue morning, min 21°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Thu night. Warm (max 28°C on Wed morning, min 22°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the S by Thu morning). | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSE 10 | SSW 9 | E 12 | SSW 9 | SSW 8 | SSW 8 | S 8 | SSW 8 | S 5 | SSW 4 | S 6 | SSW 9 | E 9 | SSW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 12 | 18 | 18 | 11 | 11 | 9 | 15 | 14 | 15 | 14 | 14 | 35 | 24 | 18 | 25 | 36 | 26 | 39 | 7 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | off | off | cross-off | off | on | glassy | cross-off | on | on | on | on | cross-off | cross-off | cross-on | cross-off |
High Tide | 6:00AM1.54m | 6:18PM1.55m | 6:40AM1.50m | 6:40PM1.58m | 7:22AM1.41m | 7:05PM1.57m | 8:12AM1.30m | 7:32PM1.55m | 9:15AM1.18m | 7:59PM1.49m | 11:18AM1.09m | 8:28PM1.42m | |||||||
Low Tide | 11:57PM0.54m | 12:07PM0.47m | 00:28AM0.45m | 12:30PM0.58m | 1:04AM0.40m | 12:53PM0.70m | 1:45AM0.39m | 1:14PM0.83m | 2:34AM0.42m | 1:27PM0.97m | 3:41AM0.47m | 12:52PM1.08m | |||||||
 |  | |  |  | |  |  | |  | | |  | | |  | | | | |
 | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — |
 | 6:14 | — | 6:13 | — | — | 6:10 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — |
mm | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | 5 | — | — | — |
Temp °C | 22 | 24 | 26 | 25 | 25 | 26 | 25 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 25 | 23 | 24 | 24 |
Feels °C | 21 | 26 | 29 | 29 | 27 | 29 | 28 | 31 | 30 | 31 | 31 | 29 | 28 | 27 | 28 | 24 | 25 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 9 | SSW 8 | SSW 9 | SSW 8 | SSW 8 | SE 10 | SSW 8 | SSW 8 | SE 7 | S 6 | SSW 9 | SSW 8 | SE 6 |
| kJ | 11 | 18 | 18 | 11 | 11 | 6 | 15 | 14 | 15 | 14 | 14 | 4 | 24 | 14 | 7 | 36 | 26 | 14 | 6 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SE 9 | ESE 12 | ESE 11 | SE 10 | SE 7 | SE 8 | SE 7 | SE 10 | SSW 9 | SE 7 | SE 6 | SSW 9 |
| kJ | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 3 | 14 | 12 | 4 | 2 | 10 | 7 | 4 | 15 | 11 | 10 | 7 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | E 11 | — | SW 6 | E 14 | E 13 | E 13 | E 12 | SE 10 | SE 10 | SE 8 | E 10 | SE 11 | SE 10 | SW 12 | SE 10 | SW 13 | SSW 12 | SW 11 |
| kJ | 12 | 2 | — | 1 | 4 | 3 | 3 | 11 | 4 | 4 | 3 | 2 | 5 | 4 | 5 | 4 | 6 | 14 | 5 |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 2 | — | — | — | NNE 3 | NNE 2 | — | — | — | — | S 8 | SSW 3 | S 5 | SSW 4 | W 3 | NE 3 | E 9 | — |
| kJ | 1 | 1 | — | — | — | 1 | 1 | — | — | — | — | 35 | 6 | 18 | 25 | 1 | 2 | 39 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 65 | 58 | 20 | 58 | 65 | 20 | 34 | 20 | 20 | 34 | 20 | 80 | 34 | 90 | 90 | 132 | 42 | 20 | 42 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
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 Shichirigahama 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 Shichirigahama Surf forecast
The above surf forecast table for Shichirigahama provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Shichirigahama can be found by selecting the local surf guide option on the grey menu. Our Shichirigahama 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 (Shichirigahama) 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 Shichirigahama 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.
Shichigahama is 6 km (4 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.
Nearest