
Surf Forecasts:
Shichirigahama surf forecast from 6 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 9AM (local time) - 4.5ft (1.4m), 9s period, S swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 12PM (local time) - 10ft (3.0m), 9s period, S swell with 1,320 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 9AM (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 Tuesday (Sep 08) at 9AM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 1.1m and 9s. The wind is predicted to be offshore 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 12PM. 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 Wednesday (Sep 09) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 8th Sep) | 4.5ft (1.4m) 9s |
| Best Surf | 9AM (Tue 8th Sep) | 4.5ft (1.4m) 9s |
| Most Powerful | 12PM (Mon 7th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what Shichigahama is serving up for the next couple of weeks.
Straight up, the next week or so is looking pretty grim. We’ve got a long stretch of weak, short-period swell and messy conditions, so don’t expect much action. The real interest lies way out at the end of the forecast period, with a long-period groundswell that could bring some clean, lined-up waves, but you’ll have to be patient.
We kick off on Monday the 7th with a bit of energy but it’s messy. A 7ft south swell is on the cards in the morning, but the wind is cross-on and it’s raining, so it’s pretty ugly. Wave energy is moderate (739). The water is sitting at 83°F, a touch warmer than normal for this time of year, so that’s a nice bonus if you’re in a wetsuit-free mind. The afternoon gets bigger with 10ft south swell and heavy combined energy (2076) but it’s a complete write-off with strong cross-onshore wind and a high chance of thunderstorms.
Tuesday the 8th morning is the only real highlight in the first week. The swell drops to 5ft from the south, but the wind swings offshore from the NNE at just 3 mph. That’s glassy, clean surf. The 9-second period gives it some shape, and the energy is moderate (527). It’s small, but the conditions will make it surfable and fun for a mellow session. This is your best bet for the first week. However, this spot can be inconsistent, so don’t expect a perfect setup every day.
After that, it’s a long drought. From Tuesday afternoon all the way through to the end of the third week of September, the swell drops to under 3ft, often with poor wind or onshore conditions. Lots of clean offshore wind from the 10th to the 18th, but the swell is tiny—1ft to 2ft—and the period is short. The combined energy drops to double digits and low triple digits, so it’s dead. This break stays pretty flat, so it’s a bit of a blank run for the area.
Now, here’s the interesting part. Around the 21st and 22nd of September, things finally wake up. We’ve got a long-period groundswell rolling in from the SE, with periods hitting 18 to 19 seconds. That’s proper groundswell. The swell height is still modest, around 3ft to 4ft, but the wave energy jumps up to solid moderate levels (340-764). The wind is offshore or cross-offshore, and conditions look clean. This is a point-break style setup, and that long-period swell will wrap in nicely at Shichigahama. It’s a standout just for the quality of the waves and the clean conditions. The waves will have good shape and energy between sets, making the paddle out easier. Keep in mind, it’s over a week away, so the details are a bit less certain, but it’s the one to circle on the calendar.
So, if you’re keen, get out Tuesday morning the 8th for a small, clean session. For the bigger, better waves, wait for the 21st and 22nd of September. Everything else in between is a write-off.
Rusty.
Short Range ForecastHeavy rain (total 67mm), heaviest during Mon morning. Warm (max 28°C on Wed morning, min 21°C on Wed night). Winds increasing (light winds from the NNE on Tue morning, fresh winds from the NNE by Wed night). | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Fri morning. Warm (max 24°C on Sat afternoon, min 20°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 | S 9 | S 9 | S 9 | SSE 9 | SSW 10 | SSW 10 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | SSW 7 | SE 9 | SE 7 | SE 8 |
Wave Graph | |||||||||||||||||||||
739 | 1288 | 476 | 320 | 276 | 506 | 351 | 621 | 313 | 113 | 65 | 30 | 28 | 29 | 17 | 9 | 8 | 5 | 12 | 14 | 35 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | off | on | on | on | cross-on | off | off | off | off | off | off | off | off | off | off | off | on | on |
High Tide | 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 | 5:39AM1.55m | 5:43PM1.56m | ||||||||
Low Tide | 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 | 11:40AM0.54m | 11:59PM0.38m | ||||||||
5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | |
— | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — | — | 5:53 | — | — | 5:52 | — | |
mm | 24 | 5 | 5 | — | 10 | 4 | 1 | 9 | 9 | — | 3 | 11 | 20 | 1 | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 26 | 26 | 28 | 27 | 21 | 21 | 22 | 21 | 20 | 21 | 22 | 22 | 24 | 23 | 26 | 27 | 26 |
Feels °C | 27 | 27 | 29 | 30 | 29 | 28 | 30 | 30 | 18 | 20 | 21 | 21 | 21 | 23 | 24 | 23 | 26 | 25 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | — | S 9 | S 9 | S 9 | S 9 | SSW 9 | SSE 8 | E 12 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | SSW 7 | SE 9 | SE 7 | SE 8 |
— | 788 | 476 | 320 | 165 | 185 | 94 | 3 | 313 | 113 | 65 | 30 | 28 | 29 | 17 | 9 | 8 | 5 | 12 | 14 | 35 | |
Swell 2 Height (m) Direction Period (s) | — | — | ESE 10 | SSW 9 | SSW 9 | SSE 8 | E 12 | E 16 | E 16 | E 11 | E 11 | SE 9 | SE 9 | SE 10 | SE 9 | SE 10 | SE 10 | SE 7 | SSW 7 | SE 9 | SSW 12 |
— | — | 10 | 197 | 90 | 76 | 3 | 5 | 5 | 2 | 2 | 3 | 3 | 4 | 3 | 4 | 4 | 2 | 5 | 3 | 14 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | ESE 10 | ESE 10 | ESE 10 | SE 12 | — | E 16 | — | E 15 | E 16 | S 9 | S 8 | S 8 | S 8 | E 14 | SE 9 | E 13 | S 7 | S 7 |
— | — | — | 10 | 10 | 10 | 6 | — | 5 | — | 17 | 5 | 1 | 1 | 1 | 1 | 4 | 3 | 3 | 4 | 1 | |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | — | — | SSE 9 | SSW 10 | SSW 10 | S 9 | NNE 3 | NE 2 | NE 3 | NNE 3 | NNE 3 | — | — | — | — | — | — | — | — |
739 | 1288 | — | — | 276 | 506 | 351 | 621 | 1 | 2 | 2 | 3 | 1 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 10 | 8 | 0 | 10 | 10 | 485 | 10 | 34 | 0 | 4 | 42 | 58 | 20 | 54 | 54 | 54 | 20 | 20 | 22 | 34 |
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.










