
Surf Forecasts:
Shichirigahama surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 10ft (3.0m), 16s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 5 Aug, 6PM (local time) - 10ft (3.0m), 16s period, SSE swell with 4,483 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3PM (local time) - 1.5ft (0.5m), 15s period with SE 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 Sunday (Aug 02) at 3PM. The primary swell is predicted to be 0.5m and 15s period with a secondary swell of 0.3m and 6s. Another secondary swell of 0.5m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 3.0m 16s and forecast to arrive on Wednesday (Aug 05) at 6PM. 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 Tuesday (Aug 04) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 2nd Aug) | 1.5ft (0.5m) 15s |
| Best Surf | 3PM (Wed 5th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 6PM (Wed 5th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's have a look at the surf forecast for Shichigahama, specifically Shichirigahama, a river mouth setup.
The next week and a half is a real mixed bag. We're looking at a solid build-up of swell, but it's going to take a few days to get going. The water temp is sitting at 82°, which is a touch warmer than usual for this time of year, so you can leave the thick wetsuit at home for now.
Saturday the 1st and Sunday the 2nd are pretty much flat. You'll see some tiny 1ft to 2ft waves, but the energy is weak (22 to 132), and the conditions are just ordinary. Not worth paddling out for.
Things start to get interesting on Monday the 3rd. The wind swings offshore from the NNE, cleaning things up. The swell builds a bit, and by the afternoon we've got 3ft waves from the ESE with a long 16-second period. The combined energy jumps to 476 (moderate). It's not huge, but it's the first sign of life.
Now, Tuesday the 4th is where it starts to get real. The morning sees 5ft of SE swell with a 17-second period, and a fresh NNE offshore wind. The energy is strong (1137). This is a proper groundswell. The afternoon pushes up to 6ft, but the wind goes cross-offshore, so the morning session is the cleaner bet.
The standout window is Wednesday the 5th through to Saturday the 8th. Wednesday morning is already pumping with 8ft from the SSE, but the afternoon is the real hero. We're talking 10ft of SSE swell, 16-second period, with a moderate NNE offshore wind. The wave energy is very strong (4006). This is excellent, powerful surf, but it's strictly for experienced surfers only. This is a big, powerful river mouth wave.
Thursday the 6th keeps the size with 10ft from the S, but the morning is the call with a moderate offshore wind. The energy is 4457. The afternoon gets a bit of a cross-shore wind, making it more marginal. Friday the 7th still has 8ft to 8ft of S swell, but the wind is all over the place, mostly cross or cross-off. It's still surfable, but not as clean.
Saturday the 8th is the last day of proper size, with 6ft of SSW swell and a clean offshore wind in the morning. The energy is still strong (1379). It's a good option for a last hurrah before the swell drops.
After the 8th, the swell fades fast. From Sunday the 9th onward, we're back to small, weak waves, mostly under 3ft, with moderate to fresh winds. The energy drops to weak (273 and below). There are a few glimmers of glassy conditions on the 14th, but with only 2ft on offer, it's not going to be worth the effort.
So, for the best of it, you're looking at the Wednesday 5th through Saturday 8th window. The absolute standout is the afternoon of the 5th and the morning of the 6th for the biggest, cleanest, most powerful surf. If you're not an expert, steer clear of the 8ft+ days. And remember, this is a river mouth, so long-period groundswells like this can sometimes break a bit straight, but with the offshore wind, it should still be fun.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 31°C on Sun morning, min 23°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the NE by Mon night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 30°C on Thu morning, min 24°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | SSW 7 | SSW 6 | SE 17 | ESE 16 | SE 15 | ESE 15 | SE 16 | ESE 16 | SE 17 | SE 17 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 |
Wave Graph | |||||||||||||||||||||
9 | 14 | 46 | 99 | 104 | 148 | 261 | 452 | 633 | 1133 | 1575 | 2527 | 3444 | 4006 | 4288 | 4401 | 3955 | 2987 | 2789 | 2601 | 1787 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | cross-off | cross-off | off | off | off | off | off | cross-off | off | off | off | off | off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 7:08PM1.49m | 6:46AM1.45m | 7:32PM1.50m | 7:33AM1.36m | 8:00PM1.50m | 8:27AM1.25m | 8:29PM1.48m | 9:35AM1.12m | 9:01PM1.45m | 11:35AM1.03m | 9:37PM1.40m | 10:28PM1.35m | |||||||||
Low Tide | 12:35PM0.28m | 00:57AM0.67m | 1:03PM0.40m | 1:38AM0.60m | 1:31PM0.54m | 2:25AM0.56m | 1:56PM0.69m | 3:24AM0.54m | 2:16PM0.86m | 4:41AM0.53m | 2:02PM1.01m | 6:19AM0.48m | |||||||||
4:48 | — | — | 4:50 | — | — | 4:50 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | |
— | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 1 | — | 5 |
Temp °C | 30 | 30 | 28 | 31 | 31 | 25 | 24 | 26 | 24 | 27 | 27 | 24 | 26 | 28 | 26 | 30 | 30 | 27 | 30 | 30 | 27 |
Feels °C | 33 | 33 | 33 | 33 | 33 | 24 | 22 | 25 | 21 | 24 | 24 | 22 | 24 | 28 | 26 | 31 | 32 | 29 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SE 15 | SSW 6 | ESE 16 | SE 15 | ESE 15 | SE 16 | ESE 16 | SE 17 | SE 17 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 |
9 | 8 | 11 | 99 | 104 | 148 | 261 | 452 | 633 | 1133 | 1575 | 2527 | 3444 | 4006 | 4288 | 4401 | 3955 | 2987 | 2789 | 2601 | 1787 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 18 | SE 17 | S 5 | S 6 | SE 9 | S 8 | S 8 | E 14 | E 14 | E 13 | — | — | — | — | E 10 | E 11 | SE 10 | ESE 11 | ESE 10 | ESE 10 |
4 | 12 | 46 | 5 | 7 | 3 | 1 | 1 | 4 | 4 | 3 | — | — | — | — | 56 | 57 | 4 | 11 | 78 | 192 | |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 9 | SE 9 | SE 9 | SE 9 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 13 |
9 | 3 | 3 | 3 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | |
Wind waves Height (m) Direction Period (s) | — | SSW 6 | — | — | S 6 | ENE 3 | NE 3 | E 7 | NE 3 | NE 3 | — | — | — | — | — | — | — | — | — | — | — |
— | 14 | — | — | 18 | 3 | 5 | 23 | 7 | 9 | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 80 | 22 | 3 | 20 | 0 | 4 | 42 | 0 | 142 | 142 | 42 | 487 | 548 | 0 | 0 | 0 | 15 | 4 | 15 | 51 | 0 |
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.











