
Surf Forecasts:
Shichirigahama surf forecast from 3 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 8ft (2.5m), 16s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 5 Aug, 12PM (local time) - 8ft (2.5m), 16s period, SSE swell with 3,460 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 3PM (local time) - 8ft (2.5m), 16s period with SSE 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 Wednesday (Aug 05) at 3PM. The primary swell is predicted to be 2.5m and 16s 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 2.5m 16s and forecast to arrive on Wednesday (Aug 05) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Wednesday (Aug 05) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 5th Aug) | 8ft (2.5m) 16s |
| Best Surf | 3PM (Wed 5th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 12PM (Wed 5th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s coming up for Shichirigahama. This is a river mouth setup, and it’s inconsistent, so we’ve got to pick our moments. The water’s sitting at 83°F, which is a touch warmer than usual for this time of year.
The first real action we can talk about kicks off Monday afternoon, the 3rd of August. We’ve got a 3-foot swell from the SE, with a very long period of 16 seconds. That’s a proper groundswell, but the energy is on the weaker side (449), and it’s a bit marginal. The wind is a fresh offshore from the NNE, so it’ll be clean, but the size is small. It’s not a standout, just a tease.
Things start to build Tuesday the 4th. The morning has a 5-foot SE swell, still that 17-second period, and the energy jumps up to 1094. Wind is still a fresh offshore from the NNE – clean. By the afternoon, the swell bumps up to 6 feet from the SE, period 16 seconds, and the energy is now 1495. The wind switches to a cross-offshore from the ENE, so it’s still clean. This is getting more interesting.
Now, Wednesday the 5th is where we start talking. The morning brings an 8-foot swell from the SSE, with a 16-second period. The energy is pumping at 3278. The wind is a fresh offshore from the NNE. It’s clean and has some grunt. But the afternoon is the real standout for the whole week. The swell stays solid at 8 feet from the SSE, period 16 seconds, energy 3253, and the wind shifts to a moderate offshore from the NE. This is excellent surf for experienced surfers. The river mouth setup should handle that long period better than a beach break, so the shape should be there. Just be aware, with that size, it’s not for beginners.
Thursday the 6th is good for the experienced crew in the morning. 8 feet from the SSE, 14-second period, energy 1956, and a moderate offshore from the NE – clean. The afternoon turns to rubbish with a cross-onshore wind, so don’t bother.
Friday the 7th is another solid morning. 8 feet from the S, 15-second period, energy 2772, and a moderate offshore from the NNE. Clean and powerful. The afternoon fades a bit but is still surfable with a cross-offshore wind.
Saturday the 8th morning is the last gem of this run. 6 feet from the SSW, 14-second period, energy 2153, and a light cross-offshore from the E. It’s clean and excellent for experienced surfers.
After that, the surf drops off. Sunday the 9th has smaller 4-foot swell, and from Monday the 10th, we hit a long gap of poor to very ordinary conditions. The swell drops to under 3 feet, and the energy plummets. There’s a real dry spell from the 10th through to the 15th of August, with barely anything rideable. The wind is often offshore, but the waves just aren’t there.
The only flicker of hope comes on Sunday the 16th of August. The morning shows a 5-foot swell from the SSE, with a shorter 10-second period, and energy of 567. The wind is a moderate offshore from the NE. It’s good for a surf, but nothing compared to the first week. After that, it’s back to tiny, weak leftovers.
So, the best on offer is undoubtedly Wednesday the 5th afternoon, with that 8-foot, 16-second groundswell and clean offshore wind. Thursday the 6th and Friday the 7th mornings are also strong. If you’re experienced, that’s your window. For the rest of us, the 16-day run has a big dead zone in the middle.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 30°C on Thu morning, min 22°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Fri night. Warm (max 29°C on Thu afternoon, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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) | SE 16 | SE 17 | SE 17 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 14 | SSE 14 | S 15 | S 15 | S 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 |
Wave Graph | ||||||||||||||||||||
448 | 671 | 1094 | 1492 | 2107 | 3278 | 3253 | 2445 | 1956 | 2228 | 2246 | 2437 | 2016 | 1576 | 1533 | 1061 | 943 | 702 | 586 | 581 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | off | off | off | off | off | cross-on | off | off | cross-off | cross | cross-off | cross-on | cross-off | off | cross-off | off |
High Tide | 8:00PM1.50m | 8:27AM1.25m | 8:29PM1.48m | 9:35AM1.12m | 9:01PM1.45m | 11:35AM1.03m | 9:37PM1.40m | 10:28PM1.35m | 5:09PM1.29m | 11:56PM1.32m | 5:08PM1.37m | 1:34AM1.33m | ||||||||
Low Tide | 2:25AM0.56m | 1:56PM0.69m | 3:24AM0.54m | 2:16PM0.86m | 4:41AM0.53m | 2:02PM1.01m | 6:19AM0.48m | 7:46AM0.40m | 8:22PM1.25m | 8:49AM0.30m | 9:37PM1.20m | |||||||||
— | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:54 | — | — | 4:56 | — | — | |
6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | |
mm | — | — | — | — | — | — | — | 2 | 1 | — | 1 | 3 | 1 | 9 | 3 | — | — | 1 | — | — |
Temp °C | 26 | 23 | 26 | 27 | 24 | 25 | 28 | 27 | 30 | 29 | 27 | 27 | 29 | 27 | 29 | 29 | 26 | 28 | 30 | 25 |
Feels °C | 25 | 20 | 22 | 24 | 22 | 23 | 28 | 28 | 32 | 30 | 30 | 28 | 31 | 30 | 32 | 31 | 28 | 29 | 31 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 17 | SE 17 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 14 | SSE 14 | S 15 | S 15 | S 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 |
448 | 671 | 1094 | 1492 | 2107 | 3278 | 3253 | 2445 | 1956 | 2228 | 2246 | 2437 | 2016 | 1576 | 1533 | 1061 | 943 | 702 | 586 | 581 | |
Swell 2 Height (m) Direction Period (s) | S 8 | E 14 | NNE 14 | E 13 | — | — | — | — | — | ESE 10 | ESE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 |
1 | 4 | 18 | 3 | — | — | — | — | — | 106 | 151 | 335 | 260 | 343 | 393 | 100 | 83 | 83 | 64 | 38 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 14 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 28 | 15 | 15 | 18 | |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 3 | NNE 3 | — | — | NNE 4 | — | — | — | — | — | — | — | — | SE 8 | — | — | — | — | ENE 3 |
5 | 6 | 8 | — | — | 34 | — | — | — | — | — | — | — | — | 227 | — | — | — | — | 2 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 548 | 487 | 142 | 42 | 487 | 485 | 0 | 0 | 0 | 51 | 0 | 0 | 1 | 51 | 0 | 51 | 0 | 0 | 0 | 1027 |
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.











