Surf Forecasts:
Shichirigahama surf forecast from 4 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 6AM (local time) - 6ft (1.9m), 10s period, S swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 12AM (local time) - 10ft (3.0m), 11s period, S swell with 2,241 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 6AM (local time) - 6ft (1.9m), 10s 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 Tuesday (Sep 08) at 6AM. The primary swell is predicted to be 1.9m and 10s period with a secondary swell of 0.6m and 11s. 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 11s and forecast to arrive on Tuesday (Sep 08) at 12AM. 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 Sunday (Sep 06) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 8th Sep) | 6ft (1.9m) 10s |
| Best Surf | 6AM (Tue 8th Sep) | 6ft (1.9m) 10s |
| Most Powerful | 12AM (Tue 8th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Hey, Rusty here. Let me level with ya – this 16-day stretch for Shichigahama is a tough one. We’re lookin’ at a whole lot of nothin’ for most of the run.
There’s a glimmer on Monday, September 7th, with a 5ft swell from the SSE and moderate energy (923). But the wind is onshore from the SSW, so it’ll be a bumpy mess. Not worth the drive.
Your best and really only decent shot is Tuesday, September 8th in the morning. The wind turns light offshore from the NNE at about 6 mph, keepin’ it clean. The swell is 6ft from the South, with a 10-second period and moderate energy (730). The conditions are set up right. But remember, Shichigahama is a river mouth that breaks inconsistently, so it’s a gamble. It’ll be clean, but inconsistent. After that, the wind swings onshore in the afternoon and the window closes.
From Wednesday the 9th onward, it’s basically flat. Swell drops to 2ft and under, and most days are a mix of strong offshore or onshore winds with tiny, short-period junk. There’s a glassy day on Sunday the 13th, but with only 1ft of swell, it’s more of a paddle than a surf.
So, if you’re keen, hit it early on Tuesday the 8th morning for a clean 6ft south swell. After that, you’re waitin’ for the next change. Water temps are a warm 80°, right about normal for this time of year. These flat spells are just part of the deal around here. Keep your eyes peeled.
Catch ya, Rusty.
Short Range ForecastHeavy rain (total 279mm), heaviest during Sun night. Warm (max 27°C on Fri afternoon, min 20°C on Sun morning). Winds increasing (light winds from the NE on Fri morning, strong winds from the N by Sun afternoon). | Days 4-6 Weather SummaryHeavy rain (total 63mm), heaviest during Wed night. Warm (max 26°C on Mon afternoon, min 21°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSE 8 | SSE 8 | SSE 12 | SSE 11 | SSE 10 | S 11 | S 10 | S 10 | S 11 | S 10 | S 9 | S 9 | S 8 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 73 | 70 | 68 | 35 | 27 | 14 | 7 | 23 | 349 | 611 | 734 | 2241 | 596 | 669 | 649 | 318 | 201 | 129 | 49 | 49 | 33 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | on | on | on | off | off | off | off | off | off | off | off | off |
High Tide | 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 | 3:46AM1.44m | 4:57PM1.47m | |||||||||
Low Tide | 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 | 10:27AM0.35m | 10:42PM0.73m | |||||||||
 | |  |  |  |  | | | | |  |  |  |  |  | | | | | | | |
 | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — |
 | — | 6:06 | — | — | 6:04 | — | — | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — |
mm | — | — | 30 | 18 | 1 | 1 | 5 | 20 | 204 | 5 | 1 | 8 | 1 | 8 | 8 | 2 | 4 | 26 | 11 | 6 | 2 |
Temp °C | 26 | 27 | 24 | 21 | 21 | 21 | 20 | 20 | 23 | 23 | 26 | 26 | 26 | 23 | 22 | 24 | 23 | 23 | 21 | 20 | 20 |
Feels °C | 27 | 28 | 24 | 19 | 18 | 17 | 15 | 14 | 24 | 26 | 29 | 27 | 29 | 22 | 21 | 27 | 25 | 23 | 20 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSE 8 | SSE 8 | SSE 12 | SSE 11 | SSE 10 | S 11 | S 10 | S 10 | S 11 | S 10 | S 9 | S 9 | S 8 | S 8 | S 8 |
| kJ | 73 | 70 | 68 | 35 | 27 | 14 | 7 | 23 | 349 | 611 | 734 | 970 | 596 | 669 | 649 | 318 | 201 | 129 | 49 | 49 | 33 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 6 | SSE 6 | SE 9 | ESE 7 | SE 8 | S 8 | S 8 | SE 11 | ESE 9 | S 11 | SE 14 | SSW 11 | SSW 11 | E 18 | E 12 | E 16 | SSW 9 | SSW 9 | — | SE 9 |
| kJ | 7 | 10 | 4 | 12 | 4 | 11 | 5 | 1 | 5 | 300 | 38 | 47 | 128 | 319 | 6 | 3 | 5 | 119 | 27 | — | 3 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SW 10 | SW 9 | SW 9 | E 8 | ESE 11 | E 9 | — | E 8 | — | — | E 12 | E 9 | ESE 9 | E 11 | SE 10 | E 7 |
| kJ | 3 | 3 | 3 | 12 | 3 | 4 | 3 | 3 | 173 | 12 | 40 | — | 6 | — | — | 3 | 2 | 9 | 2 | 17 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | NNE 2 | NNE 3 | NNE 3 | NNE 3 | NNE 4 | NNE 4 | N 4 | N 4 | — | S 11 | — | NE 3 | NE 3 | NE 3 | NNE 2 | — | NE 2 | ENE 2 | ENE 2 |
| kJ | — | — | 1 | 7 | 4 | 5 | 17 | 20 | 45 | 10 | — | 2241 | — | 5 | 2 | 2 | 1 | — | 1 | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 3 | 3 | 54 | 506 | 483 | 483 | 548 | 562 | 4 | 4 | 225 | 0 | 15 | 0 | 0 | 0 | 142 | 4 | 548 | 42 |
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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