Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 8 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
28.3°C
1.8° 

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


Shichirigahama surf forecast from 5 Sep 2026:

  • Best quality surf: Monday 7 Sep, 6PM (local time) - 10ft (3.0m), 10s period, S swell with glassy winds.
  • Most powerful swell: Monday 7 Sep, 3PM (local time) - 10ft (3.0m), 10s period, S swell with 1,889 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 6PM (local time) - 10ft (3.0m), 10s 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 Monday (Sep 07) at 6PM. The primary swell is predicted to be 3.0m and 10s period. The wind is predicted to be glassy 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 Monday (Sep 07) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Sep 06) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Mon 7th Sep)10ft (3.0m) 10s
Best Surf 6PM (Mon 7th Sep)10ft (3.0m) 10s
Most Powerful 3PM (Mon 7th Sep)10ft (3.0m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into it for the local stretch.

Right off the bat, I gotta be honest with you – the next couple of weeks look pretty flat. We’re looking at a real dry spell to start, with nothing worth paddling out for from now until the 6th of September. The waves are tiny, weak, and the wind is either cross-off or straight offshore but the swell just isn’t there. The water’s a touch warmer than normal for this time of year, sitting at 28°, so it’s a nice bath, but that’s about all the excitement you’ll get.

Things finally get a bit of a pulse around Monday the 7th. A solid south swell pushes in, with wave heights hitting 7ft on the morning and even 10ft in the afternoon. There’s a lot of energy in the water – the combined energy reading is 933 (moderate) in the morning and jumps to 1889 (strong) by the afternoon. But here’s the catch: the wind is onshore and messy, and the wave comment flags it as marginal at best. The swell period is 10 seconds, so it’s a mid-period groundswell, but with that wind, it’s gonna be a washing machine. For the experienced crew, the morning might offer a few tough but rideable ones at Shichirigahama (river) – it’s a fairly exposed spot that likes a SSW swell, but the onshore wind will chop it up. This is not a beginner’s session; 7ft is pushing it for learners. The afternoon with 10ft is only for experts, and even then, the wind is a real downer.

The 8th of September sees the swell drop a little, with 5ft in the morning and 4ft in the afternoon. The wind is nicer – light cross-shore in the morning and a clean cross-off in the afternoon. The combined energy is still moderate (653 in the morning, 319 in the afternoon). The morning at Shichirigahama might be your best bet, but it’s still only a marginal call. The swell is from the south, which is right in the sweet spot for this break, but the wave quality is just okay.

The 9th stays similar, with 7ft waves and moderate energy (773). The wind is light cross-on in the morning and light cross-shore in the afternoon, but the rain and marginal surf quality are off-putting. It’s surfable, but nothing to get excited about.

From the 10th of September onwards, the whole show fades fast. We’re back to tiny waves under 3ft, with offshore winds but simply no power. The swell dies and the energy readings drop to double digits and even single digits. The 18th of September afternoon offers a tiny 2ft wave with glassy conditions, but it’s from the east with a period of only 4 seconds – that’s windswell, and it’s barely a ripple.

So, the one standout in this entire 16-day window is the morning of Monday the 7th of September at Shichirigahama. It’s got the most size and energy, the direction is right, and the wind is the least bad of the bigger days. But you gotta be honest about the crowds – this spot gets crowded sometimes, and the onshore wind will make it a battle. For the brave, there’s a window. For everyone else, keep your board in the car and wait for the next proper swell.

Rusty.

Short Range Forecast

Heavy rain (total 234mm), heaviest during Sun night. Warm (max 26°C on Mon afternoon, min 21°C on Sat night). Winds decreasing (strong winds from the N on Sun night, calm by Mon afternoon).

Days 4-6 Weather Summary

Heavy rain (total 114mm), heaviest during Wed afternoon. Warm (max 25°C on Tue morning, min 17°C on Thu night). Winds increasing (light winds from the WNW on Tue morning, fresh winds from the N by Thu afternoon).

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
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
1
2
0
3
1
1
2
1
2
1
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
SSW
9
0.4
SSW
9
0.3
SSW
8
0.3
SE
8
0.3
SSE
8
2
SE
8
2.2
S
10
3
S
10
2
S
10
1.6
S
10
1.2
SSE
9
1.1
S
9
2
S
10
2
S
10
1.5
S
9
1
S
9
0.8
S
9
0.6
S
8
0.4
S
8
0.4
S
8
0.4
S
8
Wave Graph
Metric surfscale
Energy kJ
50
27
14
10
12
458
928
1889
792
530
254
181
761
715
367
155
95
49
21
18
18
Wind (km/h)
10
NE
15
ENE
25
NE
35
NNE
35
NNE
40
N
5
SW
25
SSW
5
SSW
5
WNW
15
N
10
NNE
10
SW
5
W
25
NNE
30
NNE
30
N
30
N
25
NNE
25
NNE
15
NNE
Wind State
cross-off
cross-off
off
off
off
off
on
on
glassy
cross
cross-off
off
cross-on
cross
off
off
off
off
off
off
off
High Tide
9:04PM1.32m
4:27PM1.34m
11:39PM1.24m
4:24PM1.40m
1:50AM1.27m
4:34PM1.43m
2:58AM1.36m
4:45PM1.45m
3:46AM1.44m
4:57PM1.47m
4:26AM1.51m
5:10PM1.49m
Low Tide
7:15AM0.47m
9:04PM1.21m
8:27AM0.40m
9:35PM1.10m
9:17AM0.35m
9:58PM0.98m
9:55AM0.33m
10:20PM0.85m
10:27AM0.35m
10:42PM0.73m
10:54AM0.39m
11:05PM0.60m
light rain
cloud
part cloud
light rain
heavy rain
heavy rain
heavy rain
thunderstorm
light rain
light rain
light rain
heavy rain
light rain
heavy rain
heavy rain
heavy rain
mod rain
mod rain
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:16
5:16
5:18
5:18
5:20
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:04
6:02
6:00
6:00
5:59
5:57
5:55
 mm
4
1
16
154
33
25
1
4
2
22
5
32
17
19
7
6
1
2
Temp °C
22
23
23
23
22
22
25
26
25
25
24
23
24
25
21
20
20
19
18
19
20
Feels °C
24
24
22
19
18
19
27
27
29
28
25
26
27
30
18
17
17
16
15
17
20
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Shichirigahama:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Shichirigahama surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest