Surf Forecasts:
Shichirigahama surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 10 Sep, 12PM (local time) - 4.5ft (1.4m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 3AM (local time) - 10ft (3.0m), 10s period, S swell with 1,738 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 12PM (local time) - 4.5ft (1.4m), 9s period with S 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 Thursday (Sep 10) at 12PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 1.0m and 9s. 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 3.0m 10s and forecast to arrive on Tuesday (Sep 08) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Monday (Sep 07) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Thu 10th Sep) | 4.5ft (1.4m) 9s |
| Best Surf | 12PM (Thu 10th Sep) | 4.5ft (1.4m) 9s |
| Most Powerful | 3AM (Tue 8th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Rusty here, talkin' 'bout the waves at Shichigahama. Gotta level with ya, most of this 16-day stretch looks like a lot of nothin', but there's one little gem hidden in there if you're willin' to wait.
For the first week and a half, we're in a deep slump. From Thursday the 3rd right on through the weekend of the 7th, the swell is puny – we're talkin' 0.7 ft to 3 ft of weak, shifty junk with barely any energy behind it. The wind is either blowin' straight onshore or blowin' so hard offshore (up to 28 mph on the 6th) that you'll get blown off your board. It's just not worth the paddle.
We do get a bump of bigger, meaner energy on the 8th and 9th, with swell jumping to 7 ft to 8 ft. Sounds good, right? Wrong. It's all onshore wind from the south-southwest at 19 mph, makin' it a big, messy, choppy wall of whitewater. For a river mouth spot, that's a hard pass.
The one day that shines is the morning of Thursday the 17th of September. That's your window. A clean 4 ft groundswell from the south-southwest, rolling in with a 10 second period and a solid energy reading of 334. But the real story is the wind – it's glassy. Dead calm. The report even says "expect good surf conditions," which is the first time we've heard that in this whole forecast. The water's a warm 81°F, right where it should be for this time of year. It won't be a big day, but with that clean glassy surface, Shichigahama should be fun, tidy, and user-friendly.
The next morning, Friday the 18th, is another glassy morning with a much smaller 3 ft wave, but the period is short and it won't have any steam.
So here's the bottom line: you've got a long, dry spell of over a week, then a single standout session on Thursday the 17th. It's a ways out, so keep your fingers crossed and your eye on the charts. That's the one, boys.
Rusty.
Short Range ForecastHeavy rain (total 44mm), heaviest during Sat morning. Warm (max 30°C on Thu afternoon, min 21°C on Sat morning). Winds increasing (calm on Thu night, strong winds from the N by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 203mm), heaviest during Mon night. Warm (max 28°C on Tue morning, min 20°C on Sun night). Mainly near gales. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 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) | S 9 | SSW 4 | S 11 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 9 | SE 7 | SE 7 | SE 7 | SE 7 | S 9 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 39 | 19 | 91 | 73 | 49 | 49 | 35 | 26 | 14 | 8 | 10 | 13 | 13 | 27 | 994 | 1131 | 776 | 500 | 904 | 551 | 408 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | off | off | cross-off | off | off | off | off | off | off | cross-off | cross-off | on | on | on | on | on | on | on |
High Tide | 9:15AM1.18m | 7:59PM1.49m | 11:18AM1.09m | 8:28PM1.42m | 9:04PM1.32m | 4:27PM1.34m | 11:39PM1.24m | 4:24PM1.40m | 1:50AM1.27m | 4:34PM1.43m | 2:58AM1.36m | 4:45PM1.45m | |||||||||
Low Tide | 1:27PM0.97m | 3:41AM0.47m | 12:52PM1.08m | 5:26AM0.51m | 7:15AM0.47m | 9:04PM1.21m | 8:27AM0.40m | 9:35PM1.10m | 9:17AM0.35m | 9:58PM0.98m | 9:55AM0.33m | 10:20PM0.85m | |||||||||
 |  |  | | |  |  | |  | | | | | |  |  | |  |  | | | |
 | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | — | 6:07 | — | — | 6:06 | — | — | 6:04 | — | — | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — |
mm | — | 2 | 1 | 1 | 4 | 17 | 19 | — | — | 1 | 5 | 17 | 37 | 21 | 111 | 1 | 1 | 9 | — | 4 | 7 |
Temp °C | 28 | 30 | 24 | 25 | 24 | 23 | 21 | 24 | 23 | 22 | 21 | 20 | 21 | 24 | 26 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 28 | 32 | 24 | 28 | 27 | 25 | 20 | 22 | 20 | 16 | 15 | 14 | 16 | 28 | 23 | 28 | 28 | 30 | 28 | 27 | 29 |
Swell 1 Height (m) Direction Period (s) | S 9 | SE 10 | S 11 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSE 8 | SE 7 | SE 7 | SE 7 | SE 7 | E 9 | S 10 | S 10 | S 10 | S 9 | E 16 | S 9 |
| kJ | 39 | 4 | 91 | 73 | 49 | 49 | 35 | 26 | 14 | 7 | 9 | 13 | 13 | 27 | 13 | 1131 | 776 | 500 | 397 | 5 | 408 |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 13 | NNE 3 | SE 6 | SE 6 | SSE 6 | SE 6 | SE 7 | SSE 8 | SSW 9 | ESE 10 | ESE 11 | SSW 9 | SSW 9 | — | E 9 | E 9 | SSW 10 | SSW 9 | E 16 | SSW 9 |
| kJ | 4 | 3 | 1 | 9 | 11 | 4 | 2 | 7 | 7 | 8 | 10 | 11 | 7 | 8 | — | 14 | 7 | 151 | 121 | 5 | 113 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | E 7 | E 8 | SW 9 | S 9 | E 9 | S 11 | — | — | — | E 8 | E 17 | — | E 16 |
| kJ | 2 | 2 | 4 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 3 | 2 | 2 | 2 | — | — | — | 1 | 6 | — | 5 |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | — | — | — | — | NNE 3 | NE 3 | NE 3 | NNE 4 | NNE 4 | NNE 4 | N 4 | N 3 | S 9 | — | — | — | S 9 | S 9 | — |
| kJ | — | 19 | — | — | — | — | 3 | 5 | 12 | 25 | 26 | 30 | 28 | 5 | 994 | — | — | — | 904 | 551 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 81 | 90 | 3 | 3 | 3 | 3 | 42 | 548 | 506 | 225 | 466 | 548 | 54 | 22 | 225 | 23 | 90 | 548 | 487 | 487 | 23 |
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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