Surf Forecasts:
Shichirigahama surf forecast from 8 Sep 2026:
- Best quality surf: Thursday 10 Sep, 6AM (local time) - 3.5ft (1.0m), 9s period, S swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 9AM (local time) - 6ft (1.9m), 8s period, SSW swell with 509 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 6AM (local time) - 3.5ft (1.0m), 9s period with S swell.
Best Forecast Surf Conditions for Shichirigahama this week:
The surf forecast for Shichirigahama over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 6AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.2m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 1.9m 8s and forecast to arrive on Wednesday (Sep 09) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Thursday (Sep 10) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 10th Sep) | 3.5ft (1.0m) 9s |
| Best Surf | 6AM (Thu 10th Sep) | 3.5ft (1.0m) 9s |
| Most Powerful | 9AM (Wed 9th Sep) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
G’day, Rusty here. I’ll call it like it is – this stretch is flat and frustrating for Shichigahama. We’ve got a long drought for the first twelve days or so before anything worth mentioning rolls in. From now until around September 20th, you’re looking at a whole lot of nothing. A few mornings, like Thursday the 10th, tease you with a 3ft south swell and a clean offshore breeze, but the energy is weak (149) and the waves are ordinary. That’s about as good as it gets for the first week and a half.
Then, on Sunday the 20th of September, the wait ends. That morning is the real deal. Shichigahama gets a 4ft south-easterly groundswell, a very long period of 19 seconds. The energy is solid (876), and the water is a touch warmer than usual at 83°. The wind is a light NNE offshore – gentle – keeping the surface glassy. This is your session to plan for. That long period means wave trains with real shape and easier paddling between sets. The swell direction from the SSE lines up nice with what this river break likes. It’s inconsistent, so be ready to wait, but the quality will be there.
That afternoon, the swell bumps up to 5ft with even more power (1624), but a light cross-shore breeze puts a bit of crinkle on it. Still a good option. By Monday the 21st, it jumps to 8ft (3553) – expert only, with strong offshore winds and heavy rain making it a full-on adventure. Tuesday the 22nd morning is another beauty for experienced surfers: a 6ft groundswell with gentle offshore winds, clean and punchy.
So, it’s a slow burn for nearly two weeks, but the 20th morning is the clear standout. Mark it.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Thu night. Warm (max 29°C on Wed morning, min 18°C on Thu night). Winds increasing (light winds from the S on Tue morning, fresh winds from the NNE by Wed night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Fri morning. Warm (max 27°C on Sun afternoon, min 19°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
AM | PM | 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) | S 9 | S 9 | SSW 10 | SSW 8 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 7 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 276 | 276 | 132 | 509 | 463 | 258 | 145 | 115 | 84 | 60 | 55 | 54 | 28 | 18 | 10 | 13 | 12 | 18 | 43 | 39 | 35 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | off | off | off | off | off | off | off | off | off | off | off | cross-off | glassy | glassy | on | on |
High Tide | 4:34PM1.43m | 2:58AM1.36m | 4:45PM1.45m | 3:46AM1.44m | 4:57PM1.47m | 4:26AM1.51m | 5:10PM1.49m | 5:03AM1.54m | 5:25PM1.52m | 5:39AM1.55m | 5:43PM1.56m | 6:17AM1.53m | 6:04PM1.59m | ||||||||
Low Tide | 9:17AM0.35m | 9:58PM0.98m | 9:55AM0.33m | 10:20PM0.85m | 10:27AM0.35m | 10:42PM0.73m | 10:54AM0.39m | 11:05PM0.60m | 11:18AM0.46m | 11:30PM0.48m | 11:40AM0.54m | 11:59PM0.38m | 12:02PM0.63m | 00:31AM0.32m | |||||||
 | |  |  |  |  |  | |  | | |  |  | |  | | | | | | | |
 | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — |
mm | — | — | — | — | 1 | 8 | 2 | 3 | 18 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 29 | 29 | 22 | 20 | 19 | 19 | 19 | 20 | 20 | 21 | 22 | 22 | 25 | 27 | 26 | 26 | 26 | 26 |
Feels °C | 30 | 28 | 28 | 28 | 29 | 19 | 18 | 16 | 17 | 19 | 21 | 20 | 22 | 23 | 23 | 27 | 30 | 31 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | S 9 | E 10 | SSW 10 | E 12 | — | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 7 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 |
| kJ | 276 | 2 | 132 | 3 | — | 258 | 145 | 115 | 84 | 60 | 55 | 54 | 28 | 18 | 10 | 13 | 12 | 18 | 43 | 39 | 35 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | ESE 10 | SE 12 | SE 10 | ESE 9 | — | ESE 9 | E 16 | E 10 | SE 11 | SE 9 | SE 10 | SE 10 | SE 9 | SSW 7 | SSW 7 | SSW 7 | SW 7 | S 7 | SW 8 |
| kJ | 184 | 140 | 10 | 6 | 24 | 8 | — | 9 | 5 | 2 | 4 | 3 | 4 | 4 | 3 | 5 | 5 | 5 | 2 | 1 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 10 | ESE 10 | SE 12 | E 17 | E 16 | SE 11 | E 15 | E 15 | E 14 | E 14 | E 15 | S 8 | E 14 | E 14 | E 13 | E 13 | E 13 | — | S 10 | S 9 | S 10 |
| kJ | 16 | 10 | 6 | 6 | 5 | 5 | 4 | 17 | 16 | 4 | 4 | 1 | 4 | 4 | 4 | 3 | 3 | — | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | — | S 9 | S 8 | SSW 8 | S 9 | NNE 4 | N 3 | NNE 3 | NNE 3 | — | — | NNE 2 | — | — | — | — | — | — | — | — | — |
| kJ | — | 276 | 122 | 509 | 463 | 11 | 6 | 6 | 2 | — | — | 1 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 81 | 23 | 752 | 125 | 225 | 0 | 34 | 0 | 3 | 3 | 3 | 42 | 54 | 20 | 54 | 20 | 34 | 20 | 64 | 34 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.
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