Surf Forecasts:
Shichirigahama surf forecast from 5 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 9AM (local time) - 4.5ft (1.3m), 9s period, S swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 6PM (local time) - 8ft (2.5m), 9s period, S swell with 1,016 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 9AM (local time) - 4.5ft (1.3m), 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 Tuesday (Sep 08) at 9AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 1.3m 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 2.5m 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 0.8m 4s period and expected on Sunday (Sep 06) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 8th Sep) | 4.5ft (1.3m) 9s |
| Best Surf | 9AM (Tue 8th Sep) | 4.5ft (1.3m) 9s |
| Most Powerful | 6PM (Mon 7th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, grab a seat and let’s talk about what’s shaping up here. Not gonna lie, I’m a bit bummed out looking at this one.
We’re gonna be waiting a long time for anything decent. The first few days are a write-off. Sunday, September 6th, we’ve got some small, messy stuff from a crook wind, but it’s basically a no-go with heavy rain and poor conditions. Same story through Monday and Tuesday morning – there’s a bump in size on Monday, but the wind is howling and it’s just a washing machine out there.
The first real flicker of hope shows up on Tuesday, September 8th, in the morning. Shichirigahama (Shichigahama) is looking at a 4 ft swell from the south, and the wind is dead calm, glassy. It’s a river mouth break, so that long period (9 seconds) isn’t the best fit, but with the water temp sitting at a touch warmer than average at 83°F, it’s the cleanest window we get. The combined energy is moderate (555). Tuesday afternoon is even glassier, with 4 ft, but the energy drops off.
Wednesday the 9th picks up a bit more size – 6 ft from the SSW in the morning – but the wind switches to an onshore or cross-onshore, and it’s described as poor. That’s a real kick in the teeth.
Thursday morning the 10th is back to clean, offshore, but only 4 ft. It’s surfable, but nothing to call home about. The energy is weak (189). After that, it’s a long, sad run of tiny surf. From Friday the 11th right through to the end of the 16-day window, the swell drops below 3 ft, mostly under 2 ft. The wind is offshore or glassy for a lot of it, which is cruel – clean conditions but no waves to ride. The energy reads as low (under 100) for most of those days.
The longest gap with no real recommendation is from the afternoon of Thursday the 10th all the way through to the end of the forecast. You’ll be waiting a week or more for anything that’s even worth a paddle.
If you’re desperate, the best on offer is that tiny window on Tuesday morning, September 8th, at Shichirigahama. It’s inconsistent, and it’s a river mouth, so the swell direction from the south (SSW optimum) is about right, but the size is small. It’s clean, and it’s quiet. That’s your only real shot. Everything else is a hard pass. Sometimes the forecast changes, so keep an eye on it, but for now, I’d be finding another hobby for a couple of weeks.
Rusty.
Short Range ForecastHeavy rain (total 241mm), heaviest during Mon morning. Warm (max 27°C on Mon morning, min 20°C on Sun night). Winds decreasing (strong winds from the SSW on Mon afternoon, calm by Tue morning). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Wed night. Warm (max 28°C on Wed afternoon, min 20°C on Fri morning). Winds decreasing (fresh winds from the N on Wed afternoon, light winds from the SSW by Thu morning). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 8 | SE 8 | SE 8 | SSE 8 | S 9 | S 9 | S 9 | S 9 | SSW 10 | SSW 9 | SSW 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | S 8 | S 8 | SSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 16 | 98 | 737 | 994 | 526 | 276 | 181 | 135 | 543 | 344 | 270 | 185 | 136 | 80 | 40 | 27 | 17 | 20 | 18 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-on | on | on | glassy | glassy | cross-on | on | cross-on | off | off | on | off | off | off | off | off | cross-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 | — | — | 5:16 | — | — | 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 | 2 | 48 | 107 | 56 | 16 | 5 | 3 | 1 | 3 | — | 3 | 4 | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 21 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 28 | 22 | 22 | 24 | 21 | 21 | 23 | 23 | 25 | 26 | 25 |
Feels °C | 19 | 17 | 16 | 26 | 23 | 28 | 31 | 30 | 29 | 30 | 31 | 20 | 24 | 27 | 19 | 21 | 24 | 24 | 27 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SE 8 | SE 8 | — | E 8 | S 9 | S 9 | S 9 | SSE 8 | SSW 10 | SSE 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | S 8 | S 8 | SSW 10 |
| kJ | 7 | 16 | 98 | — | 21 | 526 | 276 | 181 | 99 | 205 | 76 | 270 | 185 | 136 | 80 | 40 | 27 | 17 | 20 | 18 | 20 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | SSE 8 | S 9 | — | — | E 8 | SSE 9 | SSW 9 | SSW 10 | SSE 8 | SE 10 | ESE 9 | — | ESE 10 | SE 9 | E 10 | SE 10 | S 9 | SE 10 | SE 10 | SSW 13 |
| kJ | 5 | 12 | 83 | — | — | 10 | 252 | 66 | 135 | 116 | 24 | 8 | — | 10 | 3 | 2 | 4 | 6 | 4 | 4 | 16 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | S 8 | S 11 | — | — | SE 10 | SE 10 | SW 11 | ESE 10 | E 12 | E 16 | SE 11 | E 15 | E 15 | E 16 | S 9 | S 8 | E 10 | E 14 | S 11 | S 7 |
| kJ | 7 | 1 | 41 | — | — | 25 | 27 | 40 | 10 | 3 | 5 | 5 | 4 | 17 | 5 | 1 | 1 | 2 | 4 | 3 | 4 |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 4 | NNE 4 | SSE 8 | S 9 | — | — | — | — | SSW 9 | SSW 9 | NNE 3 | NNE 3 | NNE 3 | NNE 3 | — | — | — | — | — | — |
| kJ | 14 | 16 | 11 | 737 | 994 | — | — | — | — | 543 | 344 | 5 | 3 | 3 | 1 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 485 | 466 | 548 | 485 | 132 | 10 | 0 | 0 | 3 | 10 | 8 | 25 | 0 | 10 | 4 | 54 | 54 | 54 | 20 | 20 | 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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