Surf Forecasts:
Shichirigahama surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 6AM (local time) - 2.5ft (0.7m), 11s period, S swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 6PM (local time) - 3ft (0.9m), 11s period, SSW swell with 198 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 6AM (local time) - 2.5ft (0.7m), 11s 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 Sunday (Aug 09) at 6AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.4m 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 0.9m 11s and forecast to arrive on Saturday (Aug 08) 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 0.5m 3s period and expected on Thursday (Aug 13) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 9th Aug) | 2.5ft (0.7m) 11s |
| Best Surf | 6AM (Sun 9th Aug) | 2.5ft (0.7m) 11s |
| Most Powerful | 6PM (Sat 8th Aug) | 3ft (0.9m) 11s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright, let’s get quizzical from the beach. Rusty here, and I’ve got to tell you straight up: the next 16 days at Shichirigahama (river) are lookin’ pretty bleak. The finder’s telling me there’s not a single solid session worth paddling out for in the whole window. That’s a long stretch of flat or mangy conditions, so don’t be holding your breath.
We kick off on Saturday, August 8th, with a weak 4ft south swell, but the wind's on it and it’s a mess—poor surf across the board. The combined energy is a modest 324, but it’s just not coming together. Water temp is a balmy 80°, about average for the time of year, so that’s one small comfort.
Sunday the 9th offers a tiny 2ft SSW swell at 10 seconds, with glassy conditions in the morning. It’s got a combined energy of 151, but it’s ordinary—barely surfable. The afternoon turns choppy again. The break is inconsistent, and even when it’s clean, there’s just not enough push.
Monday the 10th and Tuesday the 11th are a write-off. Swell drops to 2ft to 2ft, winds are all over the place, and the energy levels plumbet to 97-130. Wednesday the 12th sees glassy afternoon conditions but again, tiny 2ft waves. This pattern of small, weak swell and messy wind drags on through the rest of the first week and into the second.
By Thursday the 13th, we get offshore winds, but the swell is a pathetic 1ft. The energy is down to 48. Sure, it’s clean, but it’s barely a ripple. The same goes for Friday the 14th—offshore but flat. The surf is so small it’s not worth getting wet.
The weekend of the 15th and 16th sees a bit more energy from the SE, with up to 2ft and 116 combined energy, but it’s rain and cross-offshore winds. Not promising. The second week is even sadder: from Monday the 17th through Thursday the 20th, the swell barely reaches 1ft, with combined energy often under 50. The wind is occasionally glassy or offshore, but there’s just no wave to work with.
The final weekend, August 22nd and 23rd, shows a slight uptick: 2ft SSW swell on Saturday afternoon with 133 combined energy and clean conditions. That’s the best of a bad lot, but it’s still tiny. The break is inconsistent, and even this little spike is not exactly a standout.
Look, Shichirigahama just isn’t on this time. It’s a long, flat run, and that’s normal for the area sometimes. Forecasts can change, but right now, there’s nothing to get excited about. Keep your gear dry.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Thu afternoon. Warm (max 28°C on Wed afternoon, min 24°C on Tue morning). Winds increasing (calm on Wed afternoon, fresh winds from the NNE by Thu night). | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 11 | S 11 | SSW 11 | SSW 10 | SSW 11 | S 10 | S 12 | SSW 11 | S 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 307 | 242 | 191 | 112 | 88 | 77 | 96 | 65 | 74 | 90 | 90 | 82 | 62 | 65 | 64 | 40 | 40 | 38 | 29 | 28 | 63 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | glassy | cross-on | cross-off | cross-off | glassy | cross-off | on | on | on | cross-off | glassy | off | off | off | off | off | off | off |
High Tide | 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 | 4:21AM1.49m | 5:58PM1.47m | 5:02AM1.53m | 6:14PM1.49m | ||||||||
Low Tide | 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 | 11:16AM0.20m | 11:27PM0.82m | 11:43AM0.25m | 11:54PM0.70m | ||||||||
 | |  |  | |  | | | | |  |  |  | |  | | | | | |  | |
 | 4:54 | — | — | 4:56 | — | — | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — |
 | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 1 | 3 | 1 | 10 | 10 | — | 1 | 10 |
Temp °C | 28 | 28 | 27 | 28 | 29 | 27 | 28 | 29 | 26 | 25 | 26 | 26 | 27 | 28 | 26 | 28 | 28 | 26 | 27 | 28 | 25 |
Feels °C | 30 | 29 | 30 | 31 | 29 | 28 | 30 | 32 | 27 | 24 | 25 | 25 | 28 | 30 | 28 | 27 | 27 | 26 | 25 | 26 | 22 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | SSW 11 | SSW 10 | SSW 11 | S 10 | S 12 | SSW 11 | S 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSE 10 |
| kJ | 307 | 242 | 191 | 112 | 88 | 77 | 96 | 65 | 74 | 90 | 90 | 82 | 62 | 65 | 64 | 40 | 40 | 38 | 29 | 28 | 63 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | ESE 12 | ESE 12 | ESE 13 | ESE 13 | SW 12 | SW 11 | SW 11 | E 11 | SE 12 | SE 12 | S 3 | SE 4 | SE 4 | SE 12 | SE 11 | SE 11 | ESE 4 | ESE 6 | SSE 10 | SSW 9 |
| kJ | 11 | 13 | 28 | 34 | 34 | 23 | 20 | 20 | 9 | 5 | 6 | 1 | 2 | 2 | 5 | 5 | 5 | 3 | 3 | 19 | 17 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | ESE 15 | SE 12 | SE 12 | ESE 12 | ESE 12 | ESE 12 | SE 11 | E 10 | E 11 | SE 13 | SE 10 | SE 10 | SE 4 | SE 9 | SE 9 | SE 11 | SSE 11 | SE 6 | ESE 6 |
| kJ | 6 | 6 | 21 | 5 | 5 | 15 | 14 | 13 | 5 | 2 | 2 | 6 | 4 | 4 | 1 | 3 | 3 | 5 | 11 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | — | S 3 | — | — | — | — | — | — | — | — | S 2 | — | ESE 4 | — | — | NNE 3 | — | NE 3 | NNE 3 | ENE 3 | NE 3 |
| kJ | — | 3 | — | — | — | — | — | — | — | — | 1 | — | 6 | — | — | 3 | — | 3 | 5 | 4 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 487 | 10 | 0 | 22 | 0 | 4 | 3 | 15 | 10 | 81 | 10 | 3 | 3 | 3 | 42 | 42 | 42 | 225 | 752 | 142 |
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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