
Surf Forecasts:
Shichirigahama surf forecast from 10 Aug 2026:
- Best quality surf: Monday 10 Aug, 12PM (local time) - 1.5ft (0.5m), 11s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 6PM (local time) - 3ft (0.9m), 10s period, SSW swell with 189 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 12PM (local time) - 1.5ft (0.5m), 11s 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 Monday (Aug 10) at 12PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m and 12s. 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 0.9m 10s and forecast to arrive on Tuesday (Aug 11) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Aug 17) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 10th Aug) | 1.5ft (0.5m) 11s |
| Best Surf | 12PM (Mon 10th Aug) | 1.5ft (0.5m) 11s |
| Most Powerful | 6PM (Tue 11th Aug) | 3ft (0.9m) 10s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer for the Shichigahama region.
Honestly, it’s a bit of a grim outlook. We’ve got a full 16 days here, but the surf is looking real weak for pretty much the whole stretch. There’s no real standouts, no days where you’d be itching to get the board out. The whole period is a long stretch of tiny, mostly poor quality waves.
We start off on Monday, August 10th with a tiny 2ft swell from the S, but it’s only 11 seconds, and the combined swell energy is weak (97). The wind is offshore from the NE in the morning at 12 mph, which keeps it clean, but the overall surf quality is just poor. Monday afternoon sees a slight bump to 2ft from the SSW, with a moderate energy (111), but it’s still described as ordinary. You’d be struggling to find a ride worth paddling for.
Tuesday the 11th through to Monday the 25th is just a flat spell. The swell is consistently tiny, bouncing between 1ft and 2ft, with most days having weak combined swell energy in the double digits (like 42, 50, 27). The wind is often offshore, keeping the surface clean, but there’s simply not enough water moving to generate any decent surf. It’s the kind of period where you’re better off cleaning the wax off your board and waiting for a better forecast.
The one day that catches the eye, but only just, is Tuesday the 25th. We get a jump in swell to 3ft from the SSE, and the period jumps to 13 seconds – that’s a proper groundswell. The combined energy hits 206 (moderate). The morning is glassy, with a light westerly breeze. That’s the best-looking day of the whole 16, but it’s over a week away (August 25th), so treat it as promising but not locked in. Even then, 3ft is small, and with that long period it’ll be a bit inconsistent, breaking straight at the beach. Still, it’s the only real hope for a session.
For the local break, Shichigahama (Shichirigahama) itself is a river mouth, and it’s inconsistent. It rarely lines up properly, and that’s the story here. The water temperature is 81°F, which is about average for this time of year.
Bottom line: there’s almost no surf to speak of. You’re looking at a solid two-week gap of nothing. The only flicker of life is on August 25th, and even that’s small. It’s a tough one, but forecasts can change. For now, it’s a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 39mm), heaviest during Tue night. Warm (max 29°C on Mon afternoon, min 23°C on Tue afternoon). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Fri night. Warm (max 30°C on Fri afternoon, min 24°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | S 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | S 5 | SSW 10 | SSW 10 | SSW 10 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSE 10 | SE 10 | SSW 11 | S 12 | S 10 | SE 11 | SSW 9 |
Wave Graph | |||||||||||||||||||||
62 | 93 | 59 | 62 | 64 | 106 | 58 | 59 | 39 | 50 | 47 | 28 | 28 | 28 | 21 | 23 | 38 | 69 | 56 | 33 | 28 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | on | cross-on | cross | off | off | off | cross-off | off | off | off | off | off | cross-off | cross-off | on | on | glassy |
High Tide | 5:20PM1.42m | 2:44AM1.38m | 5:32PM1.44m | 3:36AM1.44m | 5:45PM1.45m | 4:21AM1.49m | 5:58PM1.47m | 5:02AM1.53m | 6:14PM1.49m | 5:42AM1.54m | 6:33PM1.51m | 6:22AM1.51m | 6:54PM1.54m | ||||||||
Low Tide | 9:36AM0.23m | 10:13PM1.12m | 10:14AM0.18m | 10:39PM1.03m | 10:47AM0.17m | 11:02PM0.93m | 11:16AM0.20m | 11:27PM0.82m | 11:43AM0.25m | 11:54PM0.70m | 12:09PM0.32m | 00:25AM0.60m | 12:34PM0.42m | 1:01AM0.53m | |||||||
4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:01 | — | — | |
— | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | |
mm | — | — | — | — | 10 | 24 | 5 | — | — | 1 | 4 | — | — | — | 13 | 1 | — | — | — | — | — |
Temp °C | 28 | 29 | 25 | 26 | 26 | 23 | 23 | 24 | 24 | 27 | 28 | 26 | 29 | 30 | 27 | 29 | 29 | 26 | 27 | 28 | 27 |
Feels °C | 29 | 31 | 24 | 26 | 25 | 23 | 25 | 24 | 24 | 27 | 30 | 27 | 30 | 30 | 27 | 27 | 26 | 24 | 27 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | S 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SE 13 | S 5 | SSE 6 | S 5 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SE 10 | SSW 11 | S 12 | S 10 | SSW 10 | SSW 9 |
62 | 93 | 59 | 62 | 64 | 6 | 25 | 17 | 15 | 50 | 47 | 28 | 28 | 28 | 16 | 23 | 38 | 69 | 56 | 33 | 28 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | ESE 12 | ESE 11 | E 11 | E 11 | E 11 | SSW 10 | SSW 10 | SSW 10 | E 11 | E 10 | SE 12 | SSE 12 | SSE 11 | SSE 10 | SSW 11 | SE 9 | SE 8 | SE 12 | SE 11 | SE 7 |
21 | 13 | 11 | 2 | 3 | 2 | 58 | 59 | 39 | 2 | 2 | 5 | 14 | 12 | 21 | 23 | 21 | 18 | 35 | 31 | 8 | |
Swell 3 Height (m) Direction Period (s) | ESE 12 | SE 11 | SE 11 | SE 12 | SE 13 | E 12 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | E 9 | E 10 | E 10 | E 10 | SSW 8 | SE 12 | SE 12 | E 10 | E 10 | SSE 11 |
14 | 5 | 5 | 6 | 6 | 65 | 6 | 6 | 5 | 5 | 5 | 2 | 2 | 2 | 2 | 7 | 6 | 6 | 2 | 8 | 12 | |
Wind waves Height (m) Direction Period (s) | — | — | NE 2 | NNE 3 | SW 3 | S 5 | SE 5 | — | — | NNE 2 | — | — | — | — | — | NNE 3 | NE 3 | ENE 3 | NE 3 | NE 3 | NE 3 |
— | — | 1 | 2 | 3 | 106 | 14 | — | — | 1 | — | — | — | — | — | 3 | 2 | 1 | 2 | 1 | 4 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 0 | 42 | 3 | 34 | 81 | 80 | 3 | 3 | 3 | 3 | 34 | 34 | 42 | 34 | 132 | 42 | 15 | 10 | 34 | 22 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











