
Surf Forecasts:
Shichirigahama surf forecast from 29 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 6AM (local time) - 5ft (1.6m), 18s period, SE swell with offshore winds.
- Most powerful swell: Wednesday 5 Aug, 9AM (local time) - 11ft (3.5m), 17s period, SSE swell with 7,266 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 3AM (local time) - 2.5ft (0.7m), 17s period with SE 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 03) at 3AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 0.2m and 4s. 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 3.5m 17s and forecast to arrive on Wednesday (Aug 05) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Thursday (Jul 30) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 3rd Aug) | 2.5ft (0.7m) 17s |
| Best Surf | 6AM (Tue 4th Aug) | 5ft (1.6m) 18s |
| Most Powerful | 9AM (Wed 5th Aug) | 11ft (3.5m) 17s |
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 cookin’ for the Shichigahama area.
Right off the bat, we’ve got a flat spell. The first week is a total write-off for surfing—nothing but tiny, weak swell and poor conditions. We’re talking about a solid stretch from Wednesday the 29th of July right through until Sunday the 2nd of August where you'd be better off taking the gear out for a wax job than getting wet. The waves are barely a bump, and the wind’s got them all messed up. It’s a long, dry gap with no recommendations at all.
Things finally start to look up on Monday the 3rd of August. We get a pulse of groundswell arriving from the SE, with period jumping to a very long 18 seconds. That’s proper energy, with combined swell energy readings climbing into the 500s to 690 – that’s moderate energy for sure. Swell heights start around 3 ft in the morning, building to about 4 ft in the afternoon. The wind is a light cross-offshore from the NE, keeping the surface clean. This is your first real chance to paddle out, and for a river break like Shichirigahama, that long-period groundswell is perfect – it’ll wrap in and produce some proper lines. It’s an inconsistent spot, so don’t expect set after set, but when they come through, they’ll be worth the wait. Water temps are a touch warmer than normal at 81°, so a spring suit is all you need.
Now, Tuesday the 4th of August is the standout of this whole forecast. The swell jumps to about 6 ft in the morning from the SE with that same long 17-second period, and the wind turns offshore from the NE at 12 mph. The combined energy hits a strong 1722 – this is the real deal, clean, lined-up surf. Afternoon gets a little bigger to about 7 ft but the wind shifts to cross-offshore, so the quality is still there, though the tide may get a bit funky. This is the day for experienced surfers to point the van at Shichirigahama.
Wednesday the 5th of August goes big. Swell pumps to about 12 ft from the SSE with a 17-second period. The energy is off the charts at 7266. This is expert territory only—way too much for beginners. The offshore wind is fresh from the NNE at 19 mph, so it'll be clean but mighty. This kind of size at a river mouth can get super heavy and the rip will be strong. Only paddle out if you know what you’re doing.
Thursday the 6th drops just a tick to about 10 ft from the S, still with a 14-second period and moderate offshore winds in the morning. Still a powerful, heavy day. The afternoon gets tricky with a cross-shore wind from the ESE making things choppier.
By Friday the 7th, the swell drops to a more manageable 5 ft from the SSW, but with thunderstorms about and a cross-shore wind, things will be messy. After that, the surf tapers off through the weekend and into the next week with poor, small conditions returning.
Looking way out to Thursday the 13th of August, we see another pulse of about 8 ft swell coming from the SSE with a 12-second period and a fresh offshore wind from the NNE. The combined energy is strong again at 2181. This is a promising long-range call, but less certain this far out. If it stacks up, it’ll be another day for the experienced crew at Shichirigahama.
Your best bets: Monday the 3rd for a warm-up with clean, long-period waves, and Tuesday the 4th is the absolute highlight—bigger, cleaner, stronger. After that, it’s experts only on Wednesday and Thursday, and then a gamble on the 13th.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 30°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sun afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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) | SSW 6 | SSW 7 | SSW 7 | SSW 7 | S 7 | SSW 7 | S 7 | S 7 | SSW 6 | SSW 7 | SSW 6 | ESE 15 | SE 14 | SE 15 | SE 15 | SE 18 | SE 18 | SE 18 | SE 17 | SE 18 | SE 17 |
Wave Graph | |||||||||||||||||||||
43 | 38 | 29 | 16 | 26 | 15 | 24 | 22 | 13 | 9 | 14 | 21 | 54 | 110 | 181 | 522 | 686 | 1087 | 1722 | 2702 | 4541 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | off | cross-off | cross-on | glassy | glassy | cross-on | glassy | cross-off | cross-on | cross-on | on | on | cross | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 6:11PM1.44m | 4:37AM1.50m | 6:27PM1.45m | 5:20AM1.52m | 6:46PM1.47m | 6:02AM1.50m | 7:08PM1.49m | 6:46AM1.45m | 7:32PM1.50m | 7:33AM1.36m | 8:00PM1.50m | 8:27AM1.25m | 8:29PM1.48m | ||||||||
Low Tide | 11:09AM0.11m | 11:20PM0.96m | 11:38AM0.13m | 11:49PM0.86m | 12:07PM0.19m | 00:21AM0.76m | 12:35PM0.28m | 00:57AM0.67m | 1:03PM0.40m | 1:38AM0.60m | 1:31PM0.54m | 2:25AM0.56m | 1:56PM0.69m | ||||||||
4:47 | — | — | 4:48 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — | 4:50 | — | — | 4:52 | — | — | |
— | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | |
mm | — | — | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 29 | 29 | 29 | 27 | 29 | 30 | 28 | 27 | 27 | 26 | 27 | 28 | 27 | 25 | 27 | 26 | 28 | 30 | 26 |
Feels °C | 31 | 30 | 32 | 32 | 31 | 31 | 33 | 33 | 31 | 31 | 31 | 29 | 30 | 30 | 30 | 28 | 30 | 28 | 27 | 29 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SE 10 | SSW 7 | S 7 | S 10 | SSW 6 | SSW 7 | SSW 6 | SE 5 | SE 14 | SE 15 | SE 15 | SE 18 | SE 18 | SE 18 | SE 17 | SE 18 | SE 17 |
43 | 38 | 29 | 16 | 4 | 15 | 24 | 2 | 13 | 9 | 14 | 3 | 54 | 110 | 181 | 522 | 686 | 1087 | 1722 | 2702 | 4541 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 10 | SE 10 | SE 12 | SE 9 | SE 9 | SE 9 | SE 11 | SE 10 | SE 16 | ESE 15 | SE 5 | SSE 5 | SE 9 | SE 5 | E 14 | E 14 | — | — | — |
4 | 3 | 4 | 4 | 6 | 3 | 3 | 3 | 4 | 4 | 10 | 21 | 4 | 3 | 22 | 4 | 4 | 4 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 12 | SE 12 | — | S 8 | SE 12 | SE 12 | S 11 | S 8 | SE 15 | SE 9 | SSW 6 | SE 9 | SE 9 | S 9 | S 8 | — | — | — | — | — |
6 | 6 | 6 | — | 1 | 6 | 6 | 3 | 1 | 9 | 3 | 4 | 3 | 3 | 14 | 1 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 3 | S 7 | — | — | S 7 | — | — | SE 4 | — | — | — | — | — | — | — | — | — | — |
— | — | — | 1 | 26 | — | — | 22 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 58 | 20 | 20 | 58 | 20 | 20 | 20 | 78 | 142 | 64 | 42 | 22 | 22 | 15 | 0 | 0 | 0 | 0 | 15 | 485 |
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.










