
Surf Forecasts:
Shichirigahama surf forecast from 6 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 12PM (local time) - 3.5ft (1.0m), 8s period, SSE swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 6PM (local time) - 10ft (3.0m), 9s period, S swell with 1,397 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 12PM (local time) - 3.5ft (1.0m), 8s 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 Tuesday (Sep 08) at 12PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.8m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Sep 07) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Sep 06) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 8th Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 12PM (Tue 8th Sep) | 3.5ft (1.0m) 8s |
| Most Powerful | 6PM (Mon 7th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.
Honestly, it’s a tough stretch. The ocean’s just not giving us much to work with. We’re looking at a long, flat spell to start, so don’t be in a hurry to wax up. The first real chance of a wave won’t come until Monday the 8th, and even then, it’s barely a pulse.
Let’s start with the only spot that might offer a glimmer, Shichirigahama (river break). The water is sitting at 83°F, which is a touch warmer than normal for this time of year – a nice little bonus for the skin.
Alright, let’s run through it. Sunday the 6th is a total write-off. The swell is microscopic at 0.7ft from the SSE, and while the wind is offshore from the NNE, it’s a fresh 22 mph breeze. Too much wind, not enough wave. The combined energy is a measly 19 – that’s weak.
Monday the 7th is a no-go. A solid 7ft to 7ft south swell rolls in, but it’s completely ruined by a strong onshore wind. The combined energy spikes to 710 on Monday morning and 1330 in the afternoon, but it’s all messy, stormy junk. That’s kite-surfing territory, not for paddle surfing.
Tuesday the 8th is where it gets a little interesting, but don’t get your hopes up. The morning is still a mess with rain and onshore wind. The afternoon, however, gives us a little window. The swell drops to 3ft from the SSE, and the wind switches to a gentle offshore from the north at 9 mph. The combined energy is 237 – moderate. It’s surfable, but very ordinary. You’ll get a few small, clean lines, but it’s not going to set the world on fire.
Wednesday the 9th is poor again. Swell bumps up to 5ft to 6ft from the SSW, but the wind is onshore or cross-onshore, making it lumpy and unappealing. The energy is moderate (470-566), but the quality is just not there.
Thursday the 10th is your best bet. The morning sees a moderate offshore breeze from the north at 16 mph and a clean, 4ft south swell. The combined energy is 188, which is modest, but the offshore wind will groom it nicely. The afternoon is even better with a gentle offshore and 3ft swell. This is the standout window. It’s not big, but it’s clean, and that’s a win in this bleak forecast.
From Friday the 11th all the way through to Sunday the 21st of September, it’s a painful, flat run. Swell heights barely break 2ft, and the combined energy is mostly in the weak double digits. The wind is often offshore, but there’s nothing for it to blow on. It’s a blank stretch that’s pretty normal for the area when the swell windows close up.
So, to sum it up: circle Thursday the 10th on your calendar. That’s your best shot. Hit the water at Shichirigahama for some clean, small waves. The rest of the period? It’s a waiting game. Stick with it, the forecasts can change, but for now, it’s a quiet one.
Rusty.
Short Range ForecastHeavy rain (total 271mm), heaviest during Sun afternoon. Warm (max 28°C on Tue afternoon, min 21°C on Sun afternoon). Winds decreasing (strong winds from the S on Sun night, calm by Tue morning). | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Wed night. Warm (max 28°C on Wed afternoon, min 21°C on Wed night). Winds decreasing (fresh winds from the N on Wed night, light winds from the N by Fri afternoon). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 8 | SE 8 | S 9 | S 9 | S 9 | S 9 | SSE 8 | SSW 9 | SSW 10 | SSW 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 8 | S 8 | SSW 8 |
Wave Graph | ||||||||||||||||||||
30 | 211 | 1138 | 921 | 471 | 176 | 120 | 124 | 399 | 1188 | 320 | 111 | 82 | 41 | 27 | 17 | 18 | 20 | 10 | 11 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-on | on | on | cross | cross-on | on | on | cross-on | off | off | off | cross-off | off | off | off | off | off | off |
High Tide | 4:27PM1.34m | 11:39PM1.24m | 4:24PM1.40m | 1:50AM1.27m | 4:34PM1.43m | 2:58AM1.36m | 4:45PM1.45m | 3:46AM1.44m | 4:57PM1.47m | 4:26AM1.51m | 5:10PM1.49m | 5:03AM1.54m | 5:25PM1.52m | |||||||
Low Tide | 9:04PM1.21m | 8:27AM0.40m | 9:35PM1.10m | 9:17AM0.35m | 9:58PM0.98m | 9:55AM0.33m | 10:20PM0.85m | 10:27AM0.35m | 10:42PM0.73m | 10:54AM0.39m | 11:05PM0.60m | 11:18AM0.46m | 11:30PM0.48m | |||||||
— | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | |
6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — | — | 5:53 | — | |
mm | 111 | 131 | 16 | 3 | 4 | 1 | 1 | 4 | — | 1 | 10 | — | — | 3 | — | — | — | — | — | — |
Temp °C | 23 | 26 | 26 | 26 | 26 | 26 | 28 | 27 | 28 | 28 | 22 | 22 | 22 | 22 | 22 | 24 | 24 | 24 | 25 | 24 |
Feels °C | 23 | 24 | 26 | 28 | 28 | 31 | 30 | 30 | 30 | 31 | 21 | 22 | 22 | 23 | 23 | 26 | 25 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 8 | S 9 | S 9 | E 8 | S 9 | S 9 | SSE 8 | SSW 9 | SSE 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 8 | S 8 | SSW 8 |
30 | 81 | 565 | 12 | 471 | 176 | 120 | 124 | 108 | 683 | 320 | 111 | 82 | 41 | 27 | 17 | 18 | 20 | 10 | 11 | |
Swell 2 Height (m) Direction Period (s) | SW 9 | — | — | — | SSW 11 | SSE 9 | SSW 10 | ESE 10 | ESE 10 | — | ESE 11 | E 11 | — | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 8 | SSE 7 |
3 | — | — | — | 24 | 124 | 98 | 10 | 10 | — | 11 | 2 | — | 3 | 4 | 4 | 4 | 4 | 7 | 5 | |
Swell 3 Height (m) Direction Period (s) | SW 10 | — | — | — | ESE 10 | ESE 10 | ESE 10 | E 18 | E 17 | — | E 16 | — | E 15 | E 16 | S 9 | S 8 | S 8 | S 8 | E 14 | — |
4 | — | — | — | 10 | 10 | 10 | 6 | 6 | — | 5 | — | 17 | 5 | 1 | 1 | 1 | 1 | 4 | — | |
Wind waves Height (m) Direction Period (s) | NNE 4 | SE 8 | S 9 | S 9 | — | — | — | SSE 8 | SSW 10 | SSW 9 | NE 3 | ENE 2 | — | NE 2 | — | — | NNE 2 | NE 2 | E 4 | ESE 4 |
35 | 211 | 1138 | 921 | — | — | — | 112 | 399 | 1188 | 2 | 1 | — | 1 | — | — | 1 | 1 | 1 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 483 | 483 | 0 | 548 | 132 | 80 | 58 | 0 | 0 | 548 | 10 | 0 | 0 | 0 | 3 | 54 | 59 | 54 | 34 | 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.










