Surf Forecasts:
Shichirigahama surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 6AM (local time) - 3.5ft (1.0m), 6s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 6AM (local time) - 4.5ft (1.4m), 13s period, SSE swell with 700 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 6AM (local time) - 3.5ft (1.0m), 6s period with SSW 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 (Aug 28) at 6AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.7m and 6s. Another secondary swell of 0.4m and 9s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 1.4m 13s and forecast to arrive on Tuesday (Aug 25) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Aug 27) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 28th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 6AM (Fri 28th Aug) | 3.5ft (1.0m) 6s |
| Most Powerful | 6AM (Tue 25th Aug) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a look at what’s cookin’ at Shichigahama.
Honestly, it’s a tough stretch ahead. The next week and a half look pretty grim. We’ve got a solid run of "poor surf conditions" from Tuesday the 25th right through to Monday the 1st of September. The swell is tiny and the wind is mostly on it or cross, making a mess of things. There’s a little window on Friday the 28th morning with a clean 3ft swell, but at only 6 seconds period, it’s weak and choppy – not worth getting too excited about.
The real standout isn’t until Wednesday the 2nd of September morning. That’s the one to circle on the calendar. We’ve got a solid 7ft swell rolling in from the south with an 11-second period. The wave energy is strong, clocking in at 1051. Winds are light cross-offshore, so the lines should be clean. This is a proper intermediate swell – a bit too much for beginners, but for the rest of us, it’s looking prime. Just keep in mind that Shichigahama is a river break, and it’s inconsistent, so you’ll need a bit of patience. Crowds can show up sometimes too.
The water temp is sitting at 82°F with only a 1°F anomaly, so that’s pretty average for this time of year. Nothing wild there.
Now, Thursday the 3rd of September morning is where things get mental – a massive 25ft south swell, but that’s way too big for this break, only for the absolute crazy experts, and the wind is on it, so I’d say avoid it unless you're looking for a washing machine session.
After that, from the 4th through the 9th, it fades right off again into tiny, weak surf, mostly under 3ft, with onshore or cross-off winds. Not much to report there.
Honestly, the best bet in this whole 16-day window is clearly Wednesday morning, September 2nd. Go early, score some clean 7ft south swell, and enjoy it while it lasts.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu night. Warm (max 31°C on Wed afternoon, min 23°C on Thu night). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the SW by Thu night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 28°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | SSE 13 | SSE 12 | S 12 | SSW 12 | SSW 12 | SSW 6 | SSW 6 | S 11 | S 10 | SSW 6 | SSW 5 | SSW 8 | S 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSE 10 | SSE 10 | SSE 10 | S 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 690 | 298 | 407 | 183 | 140 | 69 | 47 | 36 | 30 | 82 | 37 | 45 | 27 | 19 | 12 | 12 | 12 | 10 | 10 | 9 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-off | on | off | cross-off | cross | off | off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:05PM1.44m | 3:19AM1.40m | 5:16PM1.46m | 4:04AM1.47m | 5:28PM1.47m | 4:44AM1.53m | 5:42PM1.49m | 5:22AM1.55m | 5:58PM1.52m | 6:00AM1.54m | 6:18PM1.55m | 6:40AM1.50m | 6:40PM1.58m | ||||||||
Low Tide | 9:48AM0.27m | 10:20PM1.01m | 10:23AM0.25m | 10:42PM0.89m | 10:52AM0.27m | 11:05PM0.77m | 11:19AM0.31m | 11:29PM0.65m | 11:43AM0.38m | 11:57PM0.54m | 12:07PM0.47m | 00:28AM0.45m | 12:30PM0.58m | 1:04AM0.40m | |||||||
 | |  | | | |  |  | | | |  | |  | | | |  |  | | | |
 | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — | — | 6:10 | — |
mm | — | — | 1 | — | — | 1 | — | 3 | 8 | — | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 29 | 31 | 28 | 30 | 30 | 25 | 26 | 27 | 27 | 28 | 28 | 26 | 26 | 27 | 25 | 25 | 26 | 26 |
Feels °C | 29 | 29 | 29 | 31 | 32 | 28 | 32 | 33 | 28 | 29 | 29 | 31 | 29 | 30 | 30 | 28 | 30 | 27 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 12 | S 12 | SSW 12 | SSW 12 | SSW 11 | S 6 | S 11 | S 6 | SSW 7 | S 9 | SSW 8 | S 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 11 |
| kJ | 690 | 298 | 407 | 183 | 140 | 69 | 25 | 35 | 18 | 58 | 13 | 45 | 27 | 19 | 12 | 12 | 12 | 6 | 6 | 6 | 20 |
Swell 2 Height (m) Direction Period (s) | E 14 | S 14 | E 13 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SE 10 | S 10 | SSE 9 | SSE 9 | SSE 10 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 4 | 243 | 3 | 48 | 32 | 32 | 24 | 24 | 30 | 8 | 8 | 9 | 11 | 12 | 10 | 10 | 10 | 10 | 10 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | ESE 14 | E 13 | ESE 13 | SSW 5 | E 12 | S 10 | SW 10 | SW 10 | SSE 10 | SW 10 | SE 15 | SE 13 | — | — | E 6 | ESE 6 | E 6 | SW 10 | SE 5 | S 11 | ESE 5 |
| kJ | 66 | 3 | 33 | 9 | 3 | 19 | 27 | 15 | 9 | 4 | 8 | 7 | — | — | 1 | 7 | 1 | 4 | 1 | 2 | 3 |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 5 | SSW 5 | SW 4 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | — | SSW 6 | SSW 5 | — | NNE 2 | — | ESE 3 | — | — | ESE 5 | — | SE 5 | — |
| kJ | 6 | 45 | 29 | 16 | 37 | 69 | 47 | 36 | — | 82 | 37 | — | 1 | — | 1 | — | — | 3 | — | 4 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 250 | 8 | 10 | 531 | 10 | 10 | 8 | 54 | 0 | 22 | 3 | 54 | 54 | 54 | 54 | 20 | 65 | 54 | 20 | 54 |
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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