Surf Forecasts:
Shichirigahama surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 10 Sep, 9AM (local time) - 6ft (1.8m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 6AM (local time) - 8ft (2.5m), 10s period, SSW swell with 1,086 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 3AM (local time) - 2ft (0.6m), 11s 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 Friday (Sep 04) at 3AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.1m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 2.5m 10s and forecast to arrive on Thursday (Sep 10) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 4s period and expected on Monday (Sep 07) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 4th Sep) | 2ft (0.6m) 11s |
| Best Surf | 9AM (Thu 10th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 6AM (Thu 10th Sep) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let’s break down the next couple of weeks.
Truth is, it’s a pretty slow start. The first few days are a total bust with tiny, weak swell and messy conditions. You’re looking at a gap of about four days before anything even remotely interesting appears. The first real sniff of surf comes around Tuesday the 8th, but it’s still pretty marginal and stormy.
The one and only standout call is for Thursday the 10th. We’ve got a moderate pulse of south swell rolling in at 5 to 5ft, with a period of 9-10 seconds – that’s some decent groundswell energy, giving you proper, punchy waves. The total energy is in the moderate range (399-491). The absolute best part is the wind: a fresh offshore breeze from the NE. That’ll keep the surface glassy and the waves clean, peeling nicely. The water is about 80°, which is pretty normal for the season. The morning is the prime time. It’s a bit too strong for beginners, but for intermediate and experienced surfers, Shichirigahama (Japan) will be the spot. Just remember, it’s a river mouth and it’s inconsistent, so you’ll need a bit of patience between sets, but the quality will be there.
Friday the 11th morning is still worth a look as the wind stays clean offshore, but the swell is already dropping to 3ft, so it’s much smaller and less powerful. After that, it’s back to flat and poor conditions right through the end of the forecast. Week two has nothing on offer.
Rusty.
Short Range ForecastHeavy rain (total 45mm), heaviest during Fri night. Warm (max 26°C on Fri morning, min 21°C on Sat morning). Winds increasing (calm on Thu night, strong winds from the NNE by Sun afternoon). | Days 5-7 Weather SummaryHeavy rain (total 28mm), heaviest during Tue night. Warm (max 28°C on Wed afternoon, min 20°C on Sun night). Mainly gales. | ||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 11 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSE 8 | ESE 9 | SE 7 | SSE 8 | SSW 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 11 | S 10 | S 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 91 | 73 | 70 | 49 | 29 | 27 | 7 | 7 | 8 | 14 | 23 | 34 | 424 | 441 | 426 | 208 | 564 | 556 | 452 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | off | off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | on | cross | on | on | on | on | cross |
High Tide | 11:18AM1.09m | 8:28PM1.42m | 9:04PM1.32m | 4:27PM1.34m | 11:39PM1.24m | 4:24PM1.40m | 1:50AM1.27m | 4:34PM1.43m | 2:58AM1.36m | 4:45PM1.45m | |||||||||
Low Tide | 3:41AM0.47m | 12:52PM1.08m | 5:26AM0.51m | 7:15AM0.47m | 9:04PM1.21m | 8:27AM0.40m | 9:35PM1.10m | 9:17AM0.35m | 9:58PM0.98m | 9:55AM0.33m | 10:20PM0.85m | ||||||||
 |  |  |  |  | |  |  |  |  | | |  | | |  | |  |  | |
 | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | 6:07 | — | 6:06 | — | — | 6:04 | — | — | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — |
mm | — | — | 2 | 36 | 6 | — | — | — | 1 | 8 | 1 | — | — | — | — | 18 | 1 | — | 3 |
Temp °C | 25 | 26 | 26 | 22 | 21 | 22 | 22 | 24 | 23 | 22 | 24 | 26 | 25 | 27 | 27 | 25 | 27 | 28 | 28 |
Feels °C | 27 | 28 | 27 | 24 | 19 | 20 | 20 | 19 | 18 | 16 | 18 | 28 | 25 | 28 | 27 | 28 | 28 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSE 8 | SSE 8 | SE 7 | SSE 8 | SSE 8 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 11 | S 10 | S 10 |
| kJ | 91 | 73 | 70 | 49 | 29 | 27 | 7 | 7 | 6 | 14 | 23 | 25 | 424 | 441 | 426 | 208 | 564 | 556 | 452 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 7 | SE 6 | SE 6 | SE 9 | SE 7 | SSE 8 | SSW 8 | ESE 9 | ESE 11 | E 10 | S 10 | NNE 4 | SSW 11 | SW 12 | SSE 9 | E 17 | E 16 | E 16 |
| kJ | 4 | 7 | 6 | 6 | 12 | 7 | 7 | 7 | 8 | 11 | 2 | 19 | 5 | 12 | 6 | 124 | 6 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SW 9 | SE 7 | S 9 | S 9 | SE 11 | SSW 10 | E 9 | SW 14 | E 9 | E 18 | E 12 | E 16 | — |
| kJ | 15 | 3 | 3 | 3 | 12 | 3 | 3 | 2 | 2 | 6 | 5 | 34 | 14 | 7 | 7 | 6 | 3 | 5 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | N 3 | NE 2 | NE 3 | NNE 3 | NNE 4 | NE 4 | NNE 4 | N 4 | N 4 | — | — | — | NNE 3 | — | — | — |
| kJ | — | — | — | 2 | 1 | 5 | 7 | 20 | 20 | 40 | 67 | 48 | — | — | — | 3 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 3 | 3 | 3 | 42 | 548 | 483 | 483 | 2349 | 466 | 502 | 6 | 23 | 1 | 81 | 10 | 132 | 466 | 1 |
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.
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