Surf Forecasts:
Shichirigahama surf forecast from 9 Aug 2026:
- Best quality surf: Monday 10 Aug, 12AM (local time) - 2ft (0.6m), 11s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 3PM (local time) - 2ft (0.6m), 11s period, SSW swell with 93 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 12AM (local time) - 2ft (0.6m), 11s period with SSW 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 Monday (Aug 10) at 12AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.3m and 12s. 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 0.6m 11s and forecast to arrive on Monday (Aug 10) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Aug 15) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 10th Aug) | 2ft (0.6m) 11s |
| Best Surf | 12AM (Mon 10th Aug) | 2ft (0.6m) 11s |
| Most Powerful | 3PM (Mon 10th Aug) | 2ft (0.6m) 11s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for our stretch of coast. To be honest, the next couple of weeks are lookin’ pretty grim for a proper paddle. We’ve got a long, flat spell ahead with just tiny dribbles.
First up, there’s really nothing to get excited about from now through to the 21st of August. The swell is tiny, mostly under 3 feet, and the wind is often onshore or just messy. It’s a barren run, with wave energy barely registerin’ at all – we’re seein’ numbers in the weak range, mostly under 100.
You’re gonna have to wait until Saturday the 22nd of August for a real pulse. That morning, Shichirigahama finally gets a look-in. The swell is a clean 3 feet from SSW, and that’s a good direction for this river mouth spot. The wind turns glassy out of the NNW, a light breeze, resultin’ in a gentle offshore. The combined energy jumps right up [321] into the moderate range, so there’s some proper push behind it. But keep it real – this break is *inconsistent* and can be crowd-ed at times, but with clean conditions like that, it’s the standout of the whole run. It might actually be worth the wait. Saturday afternoon, the swell bumps up to 4 feet from SSW, but the wind swings ENE, puttin’ it cross-offshore, and the tide or something makes it a bit touch-and-go.
Then on Sunday the 23rd of August, Shichirigahama still has some life in the morning with a 3 foot SSW swell, a 12-second period, and a cross-off wind from the ENE keepin’ things smooth [328]. That’s another solid window for a session.
After that, things go pretty ordinary again through the 24th with onshore winds and poor conditions. So, if you’re keen, your window is really that Saturday 22nd and Sunday 23rd. The water temp sits at 81°, which is about normal for the time of year at Shichirigahama.
It’s been a quiet outlook, but like I always say, it never stays flat forever. Stay patient, keep an eye on the charts, and if those winds hold for that Saturday, it could be a good one.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Wed morning. Warm (max 29°C on Sun afternoon, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Thu night. Warm (max 30°C on Thu afternoon, min 24°C on Wed night). Winds increasing (calm on Wed afternoon, fresh winds from the N by Fri morning). | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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) | SSW 10 | SSW 11 | S 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSE 11 | SE 10 | SE 10 | SE 9 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 115 | 88 | 62 | 93 | 59 | 62 | 64 | 58 | 58 | 59 | 51 | 38 | 38 | 29 | 16 | 47 | 48 | 33 | 21 | 51 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | on | off | on | off | off | off | off | off | off | off | cross-off | cross-off | cross-on |
High Tide | 5:08PM1.37m | 1:34AM1.33m | 5:20PM1.42m | 2:44AM1.38m | 5:32PM1.44m | 3:36AM1.44m | 5:45PM1.45m | 4:21AM1.49m | 5:58PM1.47m | 5:02AM1.53m | 6:14PM1.49m | 5:42AM1.54m | 6:33PM1.51m | |||||||
Low Tide | 9:37PM1.20m | 9:36AM0.23m | 10:13PM1.12m | 10:14AM0.18m | 10:39PM1.03m | 10:47AM0.17m | 11:02PM0.93m | 11:16AM0.20m | 11:27PM0.82m | 11:43AM0.25m | 11:54PM0.70m | 12:09PM0.32m | 00:25AM0.60m | |||||||
 |  | | |  | |  |  |  | | | | | | | | |  |  |  | |
 | — | — | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — |
 | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — |
mm | — | 1 | — | — | — | — | 3 | 5 | 9 | 2 | — | — | 1 | 10 | 1 | 2 | 1 | 3 | — | — |
Temp °C | 29 | 27 | 28 | 29 | 25 | 25 | 25 | 24 | 26 | 27 | 26 | 29 | 30 | 26 | 26 | 26 | 25 | 25 | 27 | 27 |
Feels °C | 31 | 29 | 28 | 30 | 24 | 27 | 26 | 26 | 26 | 28 | 27 | 29 | 30 | 25 | 23 | 25 | 24 | 25 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 11 | S 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSE 11 | SE 10 | SE 10 | SE 9 | S 10 |
| kJ | 115 | 88 | 62 | 93 | 59 | 62 | 64 | 58 | 58 | 59 | 51 | 38 | 38 | 29 | 16 | 47 | 48 | 33 | 21 | 51 |
Swell 2 Height (m) Direction Period (s) | ESE 13 | SW 12 | SW 12 | ESE 12 | ESE 11 | SE 12 | E 11 | SE 13 | SE 13 | SE 12 | SE 12 | SE 12 | E 9 | S 12 | SSE 12 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SE 9 |
| kJ | 34 | 23 | 21 | 13 | 11 | 6 | 2 | 6 | 6 | 5 | 5 | 5 | 2 | 11 | 13 | 29 | 29 | 28 | 16 | 12 |
Swell 3 Height (m) Direction Period (s) | SE 12 | ESE 12 | ESE 12 | SE 11 | SE 11 | E 10 | SE 13 | S 10 | SE 10 | E 10 | ESE 4 | — | SE 12 | SE 8 | S 12 | E 10 | E 10 | S 19 | ESE 11 | SE 12 |
| kJ | 5 | 15 | 14 | 5 | 5 | 2 | 6 | 2 | 4 | 2 | 2 | — | 5 | 3 | 11 | 2 | 2 | 7 | 11 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 2 | SW 2 | SSW 3 | SSE 3 | SE 4 | — | NNE 3 | — | — | NNE 3 | NE 3 | — | N 3 | NNE 3 | SSW 2 |
| kJ | — | — | — | — | — | 1 | 2 | 3 | 2 | 5 | — | 3 | — | — | 2 | 3 | — | 4 | 5 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 22 | 0 | 4 | 0 | 42 | 3 | 8 | 34 | 3 | 23 | 3 | 42 | 42 | 42 | 65 | 3 | 3 | 6 | 34 | 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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