Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 8 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
26.7° C
0.2° 

Shichirigahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Shichirigahama surf forecast from 21 Aug 2026:

  • Best quality surf: Monday 24 Aug, 9AM (local time) - 3.5ft (1.0m), 16s period, SSE swell with glassy winds.
  • Most powerful swell: Monday 24 Aug, 6PM (local time) - 6ft (1.8m), 16s period, SSE swell with 1,518 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 12AM (local time) - 1.5ft (0.5m), 13s 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 24) at 12AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.3m and 8s. 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 1.8m 16s and forecast to arrive on Monday (Aug 24) at 6PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 24th Aug)1.5ft (0.5m) 13s
Best Surf 9AM (Mon 24th Aug)3.5ft (1.0m) 16s
Most Powerful 6PM (Mon 24th Aug)6ft (1.8m) 16s

Table - best surf conditions forecast for Shichirigahama over the next 16 days.


The Lowdown

Right folks, Rusty here. Let’s have a look at what’s on the cards for Shichigahama.

First up, it’s a rough start. We’re looking at a gap of a few days with nothing worth paddling out for. From Friday the 21st right through to Sunday the 23rd, it’s pretty much a write-off. Tiny swell, onshore winds, and just poor conditions all round. You’re better off doing something else.

The first real glimmer of hope hits on Monday the 24th. Monday morning is the standout of the whole outlook. We’ve got a beautiful, clean glassy morning with clear skies and a light southerly breeze. The swell is a clean 3ft from the SSE with a very long period of 16 seconds. This is proper groundswell, packing a punch with combined energy of 987 (moderate to strong). For a river break, that long period groundswell can be a bit tricky, making it break a little straight, but the quality of the wave energy and the glassy wind is hard to ignore. This is a solid option for the more experienced surfer who knows the lineup. Water temp is sitting at 80°, which is about average for this time of year.

Monday afternoon, the wind swings onshore and the size jumps up to 5ft. That’s getting too big for beginners, and with the wind, it’ll be a messy closeout. Tuesday the 25th looks marginal at best with onshore breezes, and Wednesday through to the start of September is a long stretch of poor conditions and mostly onshore winds. The swell stays small and the wind is against us.

From the 30th of August (Sunday) through to the 4th of September, we start seeing some cleaner conditions, but the swell is tiny – mostly under 3ft. On the 30th, there is a moderate offshore wind with 2ft SSE swell and combined energy of 117 (weak), but it’s pretty ordinary. The real interest picks up on Thursday the 3rd of September morning with a 2ft ESE swell and a very long 16-second period, combined energy of 248 (moderate), and a moderate offshore wind. It’s surfable but nothing to write home about.

The best of that second week looks like Friday the 4th of September morning. We’ve got a gentle offshore breeze, 3ft ESE swell with a period of 14 seconds, and combined energy of 271 (moderate). Clean waves, but again, small. It’s not the bomb, but if you’re desperate and the tides line up, you could get a few.

Overall, Monday morning the 24th is the only true standout. The rest is a long, drawn-out period of waiting for something decent. It’s not a great run for consistency here.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat night. Warm (max 29°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Wed morning, min 25°C on Mon night). Winds increasing (calm on Mon morning, fresh winds from the S by Wed afternoon).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
1
3
0
1
1
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SSW
9
0.8
S
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SW
9
0.4
SSW
9
0.3
SE
13
0.5
SE
13
1
SSE
16
1.6
SSE
16
1.8
SSE
14
1.3
SSE
13
1.7
S
14
1.6
S
13
1.3
SSW
13
1
SSW
12
0.8
SSW
11
0.5
SSW
10
1.1
S
9
1
S
10
Wave Graph
Metric surfscale
Energy kJ
27
101
35
32
32
20
25
27
82
499
1360
1382
590
1179
878
554
313
135
54
194
192
Wind (km/h)
15
SSW
25
S
20
SSW
0
WSW
15
SSW
10
NE
15
NE
5
E
5
ENE
5
S
25
S
20
SSW
10
SSW
25
S
25
SSW
25
SSW
35
S
20
SSW
25
SSW
25
SSW
35
S
Wind State
on
on
on
glassy
on
cross-off
cross-off
glassy
cross-off
glassy
on
on
on
on
on
on
on
on
on
on
on
High Tide
9:20PM1.38m
5:30PM1.29m
10:31PM1.31m
4:48PM1.36m
00:49AM1.28m
4:54PM1.41m
2:21AM1.33m
5:05PM1.44m
3:19AM1.40m
5:16PM1.46m
4:04AM1.47m
5:28PM1.47m
Low Tide
6:47AM0.47m
7:34PM1.28m
8:09AM0.39m
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
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
5:07
5:07
5:09
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:22
6:22
6:20
6:19
6:17
6:16
 mm
2
11
1
1
1
33
Temp °C
27
27
27
28
28
27
27
29
26
26
27
26
27
27
27
28
28
27
27
26
25
Feels °C
28
27
28
31
32
30
29
32
30
30
28
27
28
27
29
27
26
27
27
27
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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