Surf Forecasts:
Shichirigahama surf forecast from 6 Aug 2026:
- Best quality surf: Friday 7 Aug, 3AM (local time) - 6ft (1.8m), 13s period, S swell with glassy winds.
- Most powerful swell: Thursday 6 Aug, 9PM (local time) - 6ft (1.9m), 14s period, S swell with 1,352 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 3AM (local time) - 6ft (1.8m), 13s 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 Friday (Aug 07) at 3AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.8m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 1.9m 14s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 11) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 7th Aug) | 6ft (1.8m) 13s |
| Best Surf | 3AM (Fri 7th Aug) | 6ft (1.8m) 13s |
| Most Powerful | 9PM (Thu 6th Aug) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at the local stretch.
We’re kickin’ things off at Shichirigahama – a river mouth setup that’s a bit fickle. It’s inconsistent, but when it lines up, it can be a gem. The water’s sittin’ at a warm 80°, which is pretty much average for this time of year, so no surprises there.
The best window in this whole 16-day run is gonna be Thursday afternoon, August 6th. We’ve got a solid 6ft, 13-second SSW groundswell pumping in, carrying a heap of energy (1064). That’s a moderate-to-strong energy level, so you’ll feel the push. The wind is a light cross-on from the S at 6 mph, which is a bit of a bummer – it’ll put a few small ripples on the surface. It’s not glassy, but it’s workable, and that’s the biggest swell we’re gonna see. Friday morning, August 7th, is a close second with 5ft of the same S swell (962 energy), but again, the wind is a light cross-on. It’s okay, but Thursday arvo is the pick.
After that, it’s a sad story. The swell drops off a cliff. The rest of the first week and all of the second week is a write-off for any decent surf. We’re talking tiny 0.7ft to 2ft for days on end, with most of it getting a score of zero. The wind does go offshore a few times – like on Tuesday morning, August 11th, with a fresh NNE breeze at 19 mph – but the swell is just not there. There’s a brief moment on Sunday morning, August 9th, with 2ft of S swell and a light cross-off wind from the E, giving clean conditions, but it’s just too small to get excited about.
Realistically, you’ve got one decent chance on Thursday arvo. After that, there’s a gap of about 12 days where the surf is basically flat. There’s a tiny flicker of life on Thursday morning, August 20th, with 2ft of SE swell and a light offshore from the NE, but it’s still just marginal. Nothing to pack the car for. The river mouth needs a proper push, and it’s just not gettin’ it.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Thu afternoon, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Mon afternoon, min 24°C on Tue night). Winds decreasing (fresh winds from the N on Mon night, calm by Tue night). | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 13 | S 14 | S 13 | S 12 | S 11 | S 11 | S 11 | SSW 11 | S 10 | S 11 | S 10 | SSW 11 | SSW 11 | SSW 10 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1053 | 1294 | 810 | 625 | 426 | 302 | 247 | 198 | 102 | 82 | 78 | 93 | 88 | 62 | 70 | 69 | 71 | 70 | 47 | 21 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-off | on | cross-off | cross-off | cross-off | off | off | cross-off | off | cross | on | off |
High Tide | 9:37PM1.40m | 10:28PM1.35m | 5:09PM1.29m | 11:56PM1.32m | 5:08PM1.37m | 1:34AM1.33m | 5:20PM1.42m | 2:44AM1.38m | 5:32PM1.44m | 3:36AM1.44m | 5:45PM1.45m | |||||||||
Low Tide | 6:19AM0.48m | 7:46AM0.40m | 8:22PM1.25m | 8:49AM0.30m | 9:37PM1.20m | 9:36AM0.23m | 10:13PM1.12m | 10:14AM0.18m | 10:39PM1.03m | 10:47AM0.17m | 11:02PM0.93m | |||||||||
 |  | | | | | | |  | |  | | | | | | | | |  | |
 | — | — | 4:54 | — | — | 4:54 | — | — | 4:56 | — | — | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — |
 | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 |
Temp °C | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 29 | 26 | 29 | 30 | 26 | 28 | 29 | 25 | 27 | 27 | 26 |
Feels °C | 32 | 31 | 30 | 29 | 30 | 30 | 30 | 28 | 31 | 30 | 28 | 27 | 29 | 23 | 26 | 27 | 23 | 29 | 27 | 29 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 14 | S 13 | S 12 | S 11 | S 11 | S 11 | SSW 11 | S 10 | S 11 | S 10 | SSW 11 | SSW 11 | SSW 10 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 10 |
| kJ | 1053 | 1294 | 810 | 625 | 426 | 302 | 247 | 198 | 102 | 82 | 78 | 93 | 88 | 62 | 70 | 69 | 71 | 70 | 47 | 21 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | ESE 10 | ESE 9 | SE 9 | SE 12 | ESE 11 | ESE 12 | ESE 12 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | SW 12 | SE 13 | SE 13 | SE 12 | ESE 11 | SW 11 |
| kJ | 11 | 114 | 148 | 192 | 6 | 11 | 13 | 30 | 34 | 34 | 15 | 14 | 12 | 12 | 6 | 6 | 7 | 5 | 11 | 20 |
Swell 3 Height (m) Direction Period (s) | — | — | E 15 | SE 9 | E 15 | SE 12 | SE 12 | SE 12 | SW 12 | SW 12 | SW 12 | SE 11 | SE 11 | SE 14 | SE 12 | SW 12 | E 10 | S 10 | S 10 | ESE 11 |
| kJ | — | — | 4 | 21 | 4 | 6 | 6 | 5 | 21 | 6 | 23 | 4 | 5 | 7 | 6 | 6 | 2 | 2 | 2 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 2 | — | — | — | — | — | — | NE 2 | NNE 3 | ENE 3 | NE 3 | NE 3 | NE 3 | NE 3 |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 3 | 4 | 5 | 3 | 2 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 42 | 10 | 64 | 64 | 64 | 10 | 51 | 10 | 0 | 51 | 0 | 4 | 15 | 34 | 142 | 466 | 3 | 5 | 54 | 4 |
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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