Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 2 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
27.7°C
0.9° 

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


Shichirigahama surf forecast from 26 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 12PM (local time) - 3ft (0.9m), 13s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 3AM (local time) - 4ft (1.2m), 12s period, SSW swell with 461 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 12PM (local time) - 2.5ft (0.8m), 6s period with SSW 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 Thursday (Aug 27) at 12PM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.6m and 6s. Another secondary swell of 0.4m and 11s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Shichirigahama in the next 16 days are 1.2m 12s and forecast to arrive on Wednesday (Sep 02) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Aug 31) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 27th Aug)2.5ft (0.8m) 6s
Best Surf12PM (Tue 1st Sep)3ft (0.9m) 13s
Most Powerful 3AM (Wed 2nd Sep)4ft (1.2m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s break it down for this stretch of coast. The long-range picture is a bit of a mixed bag, with a lot of onshore wind and very ordinary conditions, but there is a glimmer of something way out there that’s worth waiting for.

The opening window is a real slow burn. The first few days don't offer much to get excited about. We have some small, short-period swell around, but the wind is mostly on it or just messy. The water is sitting at 82°, which is about normal for this time of year, so at least the dips are warm.

For the first recommendation, we have to look ahead to Tuesday the 1st of September. Shichirigahama is the call. This river-mouth setup is inconsistent, but it’s our best bet early on. The wind goes cross-offshore from the ENE in the afternoon, which is a major positive. Swell is a knee-to-waist high 3 ft from the South at 12 seconds, a clean groundswell. The combined energy is moderate (301), so there’s a bit of push. The water is still warm and the crowd factor is a "sometimes", so you might have some company, but it’s worth a look. The earlier morning on the 1st has a similar 3 ft swell but a moderate offshore wind, making it a decent backup session.

Things get a bit trickier after that. From the 2nd through the 7th, it’s a long stretch of onshore winds and poor surf conditions. The swell picks up on the 3rd with 5 ft to 6 ft from the South, but it’s hammered by strong onshore SSW winds, making it lumpy and poor. This is more of a kite-surfing setup than a paddle-friendly one. There’s a lot of energy in the water (603 on the 3rd), but it’s completely wasted for us.

The real standout is the session on Tuesday the 8th of September. Both morning and afternoon are looking clean. The wind is light and cross-offshore from the East, and the swell is a solid 4 ft from the South at 12 seconds. The combined energy is strong (350-398). This is a proper groundswell with good shape. The water remains warm. It’s a full week and a half away, so while it’s the best on offer, keep an eye on the forecast as it gets closer.

The following day, Wednesday the 9th, is also a beaut. The wind goes glassy, with almost no breeze, and the swell holds at 4-4 ft from the South. This will be a dreamy session with clean, lined-up waves. The combined energy of all swells directed here is strong (393-398), so there is plenty of juice to get you into the wave. For a break that’s inconsistent, seeing two days of clean, decent-sized swell is a real treat.

The run ends on the 10th with the wind turning back onshore again, and the swell goes to a longer 16-second period, but the onshore wind ruins it. That long period would be great for a point break, but not here with the wind.

So, to sum it up: the start is a write-off, the middle is a battle with the wind, but the 8th and 9th of September are the sessions to mark on your calendar. Be patient.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Thu night. Warm (max 31°C on Wed afternoon, min 24°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Sat night. Warm (max 28°C on Sun afternoon, min 24°C on Sat afternoon). Wind will be generally light.

Wed
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
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
1
1
0
0
0
0
0
0
0
0
0
1
1
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSW
12
0.5
SSW
11
0.8
SSW
6
0.5
S
11
0.5
S
10
0.9
SSW
6
0.9
SW
6
0.5
SSW
5
0.4
SSW
8
0.3
SSW
8
0.3
SSW
8
0.3
SSW
8
0.8
SSW
5
1.2
SSW
6
0.3
SSW
14
0.3
SSW
12
0.7
S
10
0.8
S
13
1
S
12
1.2
S
12
Wave Graph
Metric surfscale
Energy kJ
137
68
36
55
45
61
54
16
20
12
12
11
31
103
36
30
98
202
295
453
Wind (km/h)
20
SW
25
SW
10
SW
30
N
20
SSW
5
SSE
0
SSW
5
NE
15
NE
5
SE
10
NNE
5
SW
5
SSW
10
WSW
25
NE
15
NE
15
NE
20
NE
15
ENE
10
ESE
Wind State
on
on
on
off
on
glassy
glassy
off
cross-off
glassy
off
on
on
cross-on
cross-off
off
off
off
cross-off
cross
High Tide
5:16PM1.46m
4:04AM1.47m
5:28PM1.47m
4:44AM1.53m
5:42PM1.49m
5:22AM1.55m
5:58PM1.52m
6:00AM1.54m
6:18PM1.55m
6:40AM1.50m
6:40PM1.58m
7:22AM1.41m
7:05PM1.57m
Low Tide
10:42PM0.89m
10:52AM0.27m
11:05PM0.77m
11:19AM0.31m
11:29PM0.65m
11:43AM0.38m
11:57PM0.54m
12:07PM0.47m
00:28AM0.45m
12:30PM0.58m
1:04AM0.40m
12:53PM0.70m
1:45AM0.39m
clear
clear
thunderstorm
thunderstorm
mod rain
cloud
part cloud
part cloud
cloud
light rain
light rain
part cloud
clear
part cloud
light rain
cloud
part cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
5:11
5:11
5:11
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:17
6:16
6:15
6:14
6:13
6:10
6:09
 mm
2
2
8
1
3
1
5
Temp °C
31
29
28
26
26
26
27
27
26
25
24
25
28
28
24
25
25
27
28
27
Feels °C
33
31
32
25
27
30
32
31
27
28
26
27
31
32
24
27
27
28
29
29
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  • 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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