Surf Forecasts:
Shichirigahama surf forecast from 2 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 3,786 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 1.1m 4s period and expected on Wednesday (Aug 05) at 3AM.
| 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, folks. Rusty here. Let’s break it down.
First up, we’ve got a run of surf coming for Shichirigahama. It’s a river mouth, a bit inconsistent, but when it gets the right swell, it can be good. Water temp is about normal for the season.
The week starts with a long-period groundswell. Monday and Tuesday, the 3rd and 4th, are small – 2ft to 6ft from the SE – but the wind is a clean offshore, so the waves will be clean. The energy is moderate (277–1694). Wednesday the 5th gets a big jump, with the swell hitting 8ft to 10ft from the SSE. That’s expert-only territory, especially with a 16-second period. The energy is strong (3731–4036). The wind stays offshore or cross-offshore, so the shape is there, but it’s big.
The real standout is Thursday morning, the 6th of August. A solid 10ft swell from the S, 16-second period, and a moderate offshore wind. The combined energy is pumping (4061), and conditions are excellent for experienced surfers. This is the best window. The river mouth will handle that long-period groundswell, giving you powerful, lined-up waves. The afternoon turns onshore with a chop, so get out early.
Friday the 7th holds strong, with 8ft to 8ft from the S, period dropping to 15 seconds, but the wind stays clean. The energy is still strong (2998–3528). The afternoon session Friday is a good call, with a gentle cross-offshore breeze. That’s a great second option. Saturday the 8th drops to 6ft from the SSW, but it’s clean and consistent, with moderate energy. Good for the intermediate crew.
After that, the swell fades. Sunday the 9th has 5ft from the SSW with a nice offshore wind, but the energy drops to moderate (1019). It’s surfable, but not the standout. From Monday the 10th onward, it’s a slow decline. The wind stays mostly offshore, but the swell drops below 3ft through the middle of the week, and the energy gets weak. Thursday the 13th and Friday the 14th have a moment of glassy conditions with tiny 2ft to 3ft waves, but it’s ordinary. The last few days from the 15th to the 18th are flat and poor, with strong winds making it hard to even paddle into the knee-high slop.
So, the takeaway: Thursday the 6th is the day to circle. Big, clean, powerful swell. Friday the 7th afternoon is a solid backup. After that, it’s a slow fade to nothing. The gap of poor surf runs from about the 10th through the end of the outlook.
Rusty out.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 23°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Fri night. Warm (max 30°C on Thu morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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) | SE 16 | SE 16 | SE 17 | SE 17 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 15 | S 15 | S 16 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | SW 14 | S 13 | SW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 258 | 448 | 772 | 1120 | 1611 | 2676 | 3731 | 3569 | 3115 | 3093 | 3588 | 3230 | 3025 | 2405 | 1463 | 1382 | 1208 | 390 | 335 | 266 | 243 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | off | off | off | off | cross | cross-off | off | cross | cross | cross-off | 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 | 1:31PM0.54m | 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 | |||||||||
 |  |  | | | | | |  | |  |  |  | |  | | | | | | | |
 | 4:50 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 3 | 4 | 16 | 1 | — | — | — | — | — |
Temp °C | 25 | 26 | 24 | 26 | 27 | 23 | 26 | 28 | 26 | 30 | 29 | 27 | 29 | 30 | 28 | 29 | 29 | 26 | 29 | 29 | 25 |
Feels °C | 23 | 24 | 21 | 22 | 24 | 20 | 24 | 28 | 26 | 31 | 30 | 29 | 32 | 31 | 29 | 32 | 30 | 28 | 26 | 25 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 16 | SE 17 | SE 17 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 15 | S 15 | S 16 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | S 10 | S 13 | S 12 | SSW 14 |
| kJ | 258 | 448 | 772 | 1120 | 1611 | 2676 | 3731 | 3569 | 3115 | 3093 | 3588 | 3230 | 3025 | 2405 | 1463 | 1382 | 1208 | 268 | 335 | 233 | 243 |
Swell 2 Height (m) Direction Period (s) | SE 22 | S 8 | E 14 | ENE 14 | E 13 | — | — | — | — | E 10 | ESE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SW 14 | SW 15 | SW 15 | S 12 |
| kJ | 18 | 1 | 4 | 18 | 3 | — | — | — | — | 74 | 86 | 557 | 531 | 430 | 384 | 437 | 412 | 390 | 262 | 266 | 45 |
Swell 3 Height (m) Direction Period (s) | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 12 | ESE 12 | ESE 12 | ESE 12 | SE 8 |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 30 | 15 | 30 | 14 | 17 |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 3 | NE 3 | NNE 3 | — | — | NNE 4 | — | — | — | — | — | — | — | — | — | — | — | — | ENE 3 | NE 4 |
| kJ | 5 | 5 | 7 | 8 | — | — | 40 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 142 | 42 | 142 | 142 | 42 | 487 | 548 | 0 | 0 | 0 | 51 | 4 | 0 | 51 | 23 | 0 | 51 | 0 | 42 | 42 | 891 |
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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