Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 8 am 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
27.4°C
0.8° 

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


Shichirigahama surf forecast from 3 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 12PM (local time) - 4.5ft (1.4m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 3AM (local time) - 10ft (3.0m), 10s period, S swell with 1,738 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 12PM (local time) - 4.5ft (1.4m), 9s 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 Thursday (Sep 10) at 12PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 1.0m and 9s. 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 3.0m 10s and forecast to arrive on Tuesday (Sep 08) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Monday (Sep 07) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 10th Sep)4.5ft (1.4m) 9s
Best Surf12PM (Thu 10th Sep)4.5ft (1.4m) 9s
Most Powerful 3AM (Tue 8th Sep)10ft (3.0m) 10s

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


The Lowdown

Rusty here, talkin' 'bout the waves at Shichigahama. Gotta level with ya, most of this 16-day stretch looks like a lot of nothin', but there's one little gem hidden in there if you're willin' to wait.

For the first week and a half, we're in a deep slump. From Thursday the 3rd right on through the weekend of the 7th, the swell is puny – we're talkin' 0.7 ft to 3 ft of weak, shifty junk with barely any energy behind it. The wind is either blowin' straight onshore or blowin' so hard offshore (up to 28 mph on the 6th) that you'll get blown off your board. It's just not worth the paddle.

We do get a bump of bigger, meaner energy on the 8th and 9th, with swell jumping to 7 ft to 8 ft. Sounds good, right? Wrong. It's all onshore wind from the south-southwest at 19 mph, makin' it a big, messy, choppy wall of whitewater. For a river mouth spot, that's a hard pass.

The one day that shines is the morning of Thursday the 17th of September. That's your window. A clean 4 ft groundswell from the south-southwest, rolling in with a 10 second period and a solid energy reading of 334. But the real story is the wind – it's glassy. Dead calm. The report even says "expect good surf conditions," which is the first time we've heard that in this whole forecast. The water's a warm 81°F, right where it should be for this time of year. It won't be a big day, but with that clean glassy surface, Shichigahama should be fun, tidy, and user-friendly.

The next morning, Friday the 18th, is another glassy morning with a much smaller 3 ft wave, but the period is short and it won't have any steam.

So here's the bottom line: you've got a long, dry spell of over a week, then a single standout session on Thursday the 17th. It's a ways out, so keep your fingers crossed and your eye on the charts. That's the one, boys.

Rusty.

Short Range Forecast

Heavy rain (total 44mm), heaviest during Sat morning. Warm (max 30°C on Thu afternoon, min 21°C on Sat morning). Winds increasing (calm on Thu night, strong winds from the N by Sat night).

Days 4-6 Weather Summary

Heavy rain (total 203mm), heaviest during Mon night. Warm (max 28°C on Tue morning, min 20°C on Sun night). Mainly near gales.

Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
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
0
0
0
0
0
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)
0.5
S
9
0.8
SSW
4
0.6
S
11
0.6
S
10
0.5
S
10
0.5
SSW
9
0.4
SSW
9
0.4
SSW
9
0.3
SSW
8
0.2
SSW
9
0.3
SE
7
0.4
SE
7
0.4
SE
7
0.5
SE
7
2.5
S
9
2.4
S
10
2
S
10
1.6
S
10
2.3
S
9
1.8
S
9
1.6
S
9
Wave Graph
Metric surfscale
Energy kJ
39
19
91
73
49
49
35
26
14
8
10
13
13
27
994
1131
776
500
904
551
408
Wind (km/h)
15
SSW
20
SSW
0
S
5
NNE
10
NNE
10
NE
30
NE
30
NNE
35
NNE
45
N
45
N
45
N
45
N
20
N
55
SSW
20
SW
30
SSW
25
SSW
30
SSW
35
SSW
25
SSW
Wind State
on
on
glassy
off
off
cross-off
off
off
off
off
off
off
cross-off
cross-off
on
on
on
on
on
on
on
High Tide
9:15AM1.18m
7:59PM1.49m
11:18AM1.09m
8:28PM1.42m
9:04PM1.32m
4:27PM1.34m
11:39PM1.24m
4:24PM1.40m
1:50AM1.27m
4:34PM1.43m
2:58AM1.36m
4:45PM1.45m
Low Tide
1:27PM0.97m
3:41AM0.47m
12:52PM1.08m
5:26AM0.51m
7:15AM0.47m
9:04PM1.21m
8:27AM0.40m
9:35PM1.10m
9:17AM0.35m
9:58PM0.98m
9:55AM0.33m
10:20PM0.85m
cloud
light rain
light rain
light rain
light rain
heavy rain
heavy rain
cloud
part cloud
light rain
light rain
heavy rain
heavy rain
heavy rain
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:15
5:16
5:16
5:16
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:06
6:04
6:02
6:00
6:00
5:59
 mm
2
1
1
4
17
19
1
5
17
37
21
111
1
1
9
4
7
Temp °C
28
30
24
25
24
23
21
24
23
22
21
20
21
24
26
28
28
27
28
28
27
Feels °C
28
32
24
28
27
25
20
22
20
16
15
14
16
28
23
28
28
30
28
27
29
  • 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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