Surf Forecasts:
Shichirigahama surf forecast from 23 Aug 2026:
- Best quality surf: Monday 24 Aug, 6AM (local time) - 1.5ft (0.5m), 16s period, SSE swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 9PM (local time) - 5ft (1.5m), 14s period, SSE swell with 911 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 6AM (local time) - 1.5ft (0.5m), 16s period with SSE 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 24) at 6AM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.5m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shichirigahama in the next 16 days are 1.5m 14s and forecast to arrive on Monday (Aug 24) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Saturday (Aug 29) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 24th Aug) | 1.5ft (0.5m) 16s |
| Best Surf | 6AM (Mon 24th Aug) | 1.5ft (0.5m) 16s |
| Most Powerful | 9PM (Mon 24th Aug) | 5ft (1.5m) 14s |
Table - best surf conditions forecast for Shichirigahama over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a proper look at what’s in store for the next couple of weeks.
Right off the bat, the ocean is putting on a bit of a flat spell for us, so don’t rush to grab your board just yet. The first real glimmer of anything rideable shows up on Thursday morning, August 27th, but it’s tiny. We’re talking about a small, weak swell rolling in at Shichirigahama, that river mouth setup. The water temp is sitting about average for this time of year, nothing weird going on there.
Thursday, August 27th is the standout, and it’s not a big swell day, but it’s our best shot. The morning starts with a tiny 1ft swell from the SSW, but the wind is glassy – dead calm, not a breath of air. It’s going to be clean as a whistle. The afternoon is where it’s at though: the swell picks up to a modest 4ft from the SSW, period at a solid 10 seconds, and the energy is moderate (276). The wind stays glassy. That’s your window for a super fun, uncrowded session. The break is inconsistent, so you’ll be waiting for sets, but when they come, they’ll be clean and lined up. The water is about average temp for the time of year.
Friday, August 28th is a write-off. Swell drops right back to 2ft, and the wind turns onshore and choppy. Saturday and Sunday, August 29th and 30th, are even smaller, with only 1ft to 2ft. The wind is offshore or cross-off, but there’s just no energy to work with – the combined energy readings are in the weak 40s and 60s. You’d be better off looking for rocks to skip.
The whole first week of September is a flat, windy mess. There’s a stretch from August 31st through to September 5th where the surf is either tiny or blown out. The wind is howling on the 3rd and 4th, with fresh offshore breezes, but the swell is a pathetic 1ft to 3ft. No go.
Now, looking ahead to the second week, there’s finally a little pulse of energy on the horizon. Sunday, September 6th sees a 4ft south swell (13-second period) roll in, but the wind is onshore for most of the day, making it sloppy. The real promise is Monday, September 7th. The morning session at Shichirigahama looks good: a clean 3ft south swell with a 12-second period, and light, cross-offshore wind from the NE. The energy is moderate (319) and the conditions should be clean. It’s a promising option, but it’s a week and a half away so keep an eye on the forecasts.
Beyond that, September 8th looks like a marginal, drizzly day with a light cross-shore wind. Not exactly inspiring.
So, to sum it up: your best bet is Thursday afternoon, August 27th at Shichirigahama for that glassy, clean, small-wave fun. The second best is Monday morning, September 7th for a clean, slightly bigger swell. The rest is a flat spell that’s pretty normal for this area. It won’t stay poor forever.
Stay stoked,
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 30°C on Wed afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Thu night. Warm (max 29°C on Thu morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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) | SE 13 | SSE 18 | SSE 16 | SSE 14 | S 13 | S 12 | S 13 | SSW 12 | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 6 | S 8 | S 8 | S 8 | SW 8 | SSW 9 | SSW 8 |
Wave Graph | |||||||||||||||||||
82 | 260 | 480 | 615 | 663 | 353 | 534 | 361 | 594 | 119 | 45 | 255 | 88 | 49 | 46 | 50 | 18 | 42 | 24 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | cross-on | glassy | glassy | cross-off | on | cross-on | cross | off | cross-off | cross-off |
High Tide | 00:49AM1.28m | 4:54PM1.41m | 2:21AM1.33m | 5:05PM1.44m | 3:19AM1.40m | 5:16PM1.46m | 4:04AM1.47m | 5:28PM1.47m | 4:44AM1.53m | 5:42PM1.49m | 5:22AM1.55m | 5:58PM1.52m | |||||||
Low Tide | 9:21PM1.20m | 9:06AM0.32m | 9:56PM1.11m | 9:48AM0.27m | 10:20PM1.01m | 10:23AM0.25m | 10:42PM0.89m | 10:52AM0.27m | 11:05PM0.77m | 11:19AM0.31m | 11:29PM0.65m | 11:43AM0.38m | 11:57PM0.54m | ||||||
— | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | |
6:22 | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — | |
mm | 1 | — | — | — | — | — | 1 | — | — | — | 2 | 5 | 9 | — | — | 8 | 3 | — | 1 |
Temp °C | 26 | 27 | 28 | 28 | 28 | 29 | 27 | 29 | 30 | 28 | 29 | 29 | 24 | 27 | 28 | 27 | 26 | 24 | 23 |
Feels °C | 31 | 29 | 30 | 30 | 28 | 29 | 26 | 32 | 31 | 28 | 33 | 34 | 26 | 28 | 28 | 30 | 28 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SSE 18 | SSE 13 | SSE 14 | S 13 | S 12 | S 13 | SSW 12 | SSE 9 | SSW 12 | SSW 11 | SSE 10 | SSW 6 | S 8 | S 8 | S 8 | SSW 6 | SSW 9 | SSW 8 |
82 | 260 | 342 | 615 | 663 | 353 | 534 | 361 | 34 | 119 | 45 | 18 | 46 | 49 | 46 | 50 | 12 | 42 | 24 | |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SSE 12 | SSE 16 | S 16 | E 14 | S 15 | E 13 | SSE 10 | E 12 | SSE 9 | SE 10 | S 13 | SSW 9 | SSE 10 | SSE 10 | SSE 9 | SW 8 | SSE 11 | SSE 10 |
14 | 133 | 480 | 267 | 4 | 279 | 3 | 38 | 3 | 32 | 24 | 3 | 28 | 9 | 9 | 9 | 18 | 12 | 11 | |
Swell 3 Height (m) Direction Period (s) | SSE 18 | SSE 15 | ESE 12 | E 15 | ESE 14 | E 13 | ESE 13 | E 12 | ESE 12 | S 10 | S 11 | — | SSE 10 | SW 10 | SW 10 | SE 10 | SSE 11 | E 10 | SE 10 |
31 | 84 | 28 | 38 | 66 | 3 | 33 | 3 | 28 | 19 | 20 | — | 9 | 4 | 4 | 23 | 11 | 7 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | SSW 8 | SSW 4 | SSW 4 | SSW 5 | SSW 4 | SW 4 | SSW 13 | SSW 5 | S 6 | SSW 10 | SSW 6 | — | — | — | — | — | — |
— | — | 26 | 10 | 9 | 54 | 26 | 8 | 594 | 48 | 33 | 255 | 88 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 6 | 10 | 81 | 10 | 10 | 487 | 23 | 10 | 515 | 23 | 0 | 0 | 0 | 80 | 225 | 3 | 42 | 42 | 42 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











