
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, 3PM (local time) - 7ft (2.1m), 9s period, SSW swell with 734 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. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 2.1m 9s and forecast to arrive on Wednesday (Sep 09) at 3PM. Winds are predicted to be cross-shore 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 | 3PM (Wed 9th Sep) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it for Shichigahama.
The next couple of weeks look pretty grim, to be honest. We've got a long stretch of tiny, weak waves coming up, and it's not until the very end of the window that we see any real life. The water temp is about average for this time of year, so at least you won't be freezing while you're staring at a flat ocean.
From Wednesday the 9th through to almost the end of the month, it's mostly junk. Wednesday morning the 9th sees a 6ft south swell, but it's getting smashed by a strong 19 mph southwest wind, creating poor surf conditions. That afternoon the wind swings cross-shore but the conditions are still marginal. The combined wave energy reading of 755 and then 1266 through Wednesday tells you it's messy and there's no shape to it.
Thursday the 10th drops off hard. We get some clean offshore winds from the NNE, but the swell is down to 3ft and 3ft with a short 8-second period. The energy reading is barely 118. The same small, clean 2ft dribble continues through Friday the 11th (48-50 energy) and into the weekend. Saturday the 12th is barely 1ft and Sunday the 13th is 1ft. The entire week from the 14th to the 21st is a write-off, with swell heights mostly between 0.7ft and 2ft and poor conditions across the board. It's a full week of nothing to get excited about.
Then, on Tuesday the 22nd of September morning, things start to flicker. A 2ft SSE swell with a 10-second period shows up with clean offshore wind, and the energy jumps to 110. It's "surfable waves but very ordinary conditions", just a 1/10. A glimmer, but nothing more.
Now, pay attention to Wednesday the 23rd of September. This is the standout. We get a solid 5ft S groundswell with a very long 17-second period, paired with clean offshore winds from the NNE. The combined energy hits 1300 – a serious jump. This is "moderate offshore and clean" conditions with "very good surf" expected. The size is pushing it for beginners, but for the rest of you, this is where it gets good. That long period means the waves will have real punch and shape, but being a river mouth and a beach break, that long period can make things a little straight. Still, it's easily the best session on offer.
It gets even better on Thursday the 24th of September. A 7ft S swell with a 17-second period, still with clean offshore wind. The energy reading is a massive 2833. This is expert territory now – over 8ft and powerful. If you've got the skills, this is the one to circle on the calendar. It's still a week and a half out, so keep an eye on the charts, but the potential is there.
For the rest of the run, it fades back into tiny 1ft stuff. The whole 16-day window is a long wait for that one Wednesday and Thursday hit.
Stay patient.
- Rusty
Short Range ForecastHeavy rain (total 87mm), heaviest during Thu night. Warm (max 28°C on Tue night, min 18°C on Thu afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 10 | S 9 | SSW 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 7 | SSW 7 | SSW 7 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 |
Wave Graph | |||||||||||||||||||
159 | 537 | 734 | 225 | 116 | 86 | 46 | 44 | 43 | 29 | 18 | 10 | 5 | 13 | 12 | 17 | 29 | 28 | 25 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | off | off | off | off | off | off | off | off | cross-off | off | off | cross-off | cross-off | on | on | on |
High Tide | 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 | 9:58PM0.98m | 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 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | |
6:00 | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | |
mm | 7 | — | 6 | 11 | 7 | 20 | 29 | 7 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 21 | 20 | 19 | 19 | 20 | 21 | 21 | 23 | 25 | 23 | 24 | 26 | 25 | 26 | 27 | 27 |
Feels °C | 29 | 28 | 31 | 17 | 17 | 17 | 17 | 20 | 21 | 21 | 22 | 26 | 23 | 23 | 27 | 28 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSE 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 7 | SSW 7 | SSW 7 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 |
159 | 202 | 517 | 225 | 116 | 86 | 46 | 44 | 43 | 29 | 18 | 10 | 5 | 13 | 12 | 17 | 29 | 28 | 25 | |
Swell 2 Height (m) Direction Period (s) | SE 12 | ESE 10 | ESE 10 | SE 9 | E 11 | ESE 10 | SE 9 | E 10 | SE 10 | SE 9 | SE 10 | SE 10 | SE 9 | SSW 7 | SSW 7 | S 7 | S 7 | E 12 | S 7 |
6 | 10 | 10 | 3 | 2 | 10 | 3 | 2 | 4 | 3 | 4 | 4 | 3 | 5 | 5 | 1 | 1 | 12 | 1 | |
Swell 3 Height (m) Direction Period (s) | E 18 | SE 12 | E 16 | SE 11 | — | E 15 | E 16 | E 14 | S 8 | E 14 | S 8 | E 14 | E 13 | E 13 | — | — | SW 7 | E 15 | S 7 |
6 | 6 | 5 | 5 | — | 17 | 5 | 4 | 1 | 4 | 1 | 4 | 3 | 3 | — | — | 2 | 4 | 1 | |
Wind waves Height (m) Direction Period (s) | S 6 | S 9 | SSW 9 | NE 4 | NNE 3 | N 3 | NNE 3 | NNE 3 | NNE 3 | NNE 2 | NNE 2 | — | — | NNE 2 | — | — | — | S 3 | SSW 3 |
128 | 537 | 734 | 14 | 8 | 6 | 4 | 2 | 3 | 1 | 1 | — | — | 1 | — | — | — | 8 | 4 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 487 | 505 | 1 | 34 | 142 | 34 | 3 | 3 | 42 | 34 | 54 | 54 | 34 | 54 | 54 | 34 | 20 | 81 | 34 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










