Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 8 am 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
27.5°C
1.3° 

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


Shichirigahama surf forecast from 12 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 12PM (local time) - 5ft (1.6m), 14s period, SE swell with offshore winds.
  • Most powerful swell: Saturday 19 Sep, 3AM (local time) - 5ft (1.5m), 16s period, SE swell with 1,074 kJ wave energy.
  • Next surfable swell (1★+): Saturday 19 Sep, 12PM (local time) - 5ft (1.6m), 14s 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 Saturday (Sep 19) at 12PM. The primary swell is predicted to be 1.6m and 14s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Shichirigahama in the next 16 days are 1.5m 16s and forecast to arrive on Saturday (Sep 19) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Sep 18) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sat 19th Sep)5ft (1.6m) 14s
Best Surf12PM (Sat 19th Sep)5ft (1.6m) 14s
Most Powerful 3AM (Sat 19th Sep)5ft (1.5m) 16s

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


The Lowdown

Right, grab a coffee, let's have a look at what’s coming our way for the next couple of weeks. The first week or so is a bit of a write-off, to be honest. Tiny, weak swells and poor conditions are the story. The good stuff doesn’t show up until we’re well into the second week.

First up, we’ve got a long, dry spell. From this Saturday through to the following Friday, it’s pretty flat. Swell heights are tiny, mostly between 0.3ft and 1ft, and even with that clean, offshore wind from the NNE, there’s simply no energy in the water. The combined wave energy is in the low teens and twenties, way too weak for a decent paddle. It’s going to be a frustrating week for anyone sitting on the sand.

Now, onto Shichirigahama, that river break, and it finally starts to look interesting around Saturday the 19th. We see a pulse of swell from the SE, pushing to 5ft by the afternoon. That’s a solid, rideable size. The wind goes light and offshore from the N, which is going to keep it glassy and clean. The combined energy jumps up to a moderate 926. The only thing is, the period is a solid 13 seconds on that afternoon session, which is a good, long groundswell. That can sometimes make a beach break a bit straight, but for a river mouth like Shichirigahama, it often lines up nicely. This Saturday afternoon is your standout session of the forecast – expect good, clean waves.

Following that, Sunday the 20th and Monday the 21st hang in there with 4ft to 4ft of SSE to SSW swell. The wind stays offshore, light to gentle, so the surface will be clean. The energy drops back a bit but still sits in the moderate range (around 300-400 range). It’ll be consistent and fun, but the Saturday session has the edge for quality.

After that, it gets a bit messy again. Tuesday the 22nd brings a big lump of 10ft swell from the S, but it’s onshore wind and a short, choppy 7-second period. That’s going to be a washing machine – way too much power for a beginner, and not much fun for anyone on a normal board unless you’re an expert looking for a battle. The energy is strong (991), but the quality is poor.

The rest of the month we’re back to small, weak, and mostly unexciting surf. Some clean mornings, some cross-off winds, but the swell just isn’t there.

So to wrap it up: get your hopes up for Saturday the 19th of September. The afternoon at Shichirigahama is the clear winner. The water is sitting at a warm 82°, which is a touch warmer than normal for this time of year, so the boardies will be plenty. Be aware, the spot can get crowded sometimes.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sat morning. Warm (max 27°C on Mon morning, min 20°C on Sat morning). Winds increasing (light winds from the ENE on Sun morning, fresh winds from the SSW by Mon afternoon).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Wed afternoon. Warm (max 27°C on Tue afternoon, min 22°C on Thu night). Winds increasing (light winds from the SW on Tue afternoon, fresh winds from the NNE by Thu night).

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
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
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SSW
7
0.4
SSW
7
0.3
SSW
7
0.2
SSW
7
0.3
SE
9
0.4
SE
8
0.4
SE
7
0.9
S
4
0.3
E
14
0.4
SSE
8
0.4
SE
8
0.4
SSE
7
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.2
SSE
8
0.2
SSE
8
0.3
SE
7
0.1
SE
18
0.4
SE
15
0.6
SSE
17
Wave Graph
Metric surfscale
Energy kJ
18
18
9
5
12
15
12
28
32
26
16
21
14
17
17
6
6
8
12
57
206
Wind (km/h)
15
NNE
15
NNE
15
NNE
10
NNE
10
S
15
SSW
20
SSW
35
SSW
20
SSW
10
SW
20
S
15
N
15
NE
15
NNE
15
NE
20
NNE
25
NE
30
NNE
35
NNE
35
NNE
35
N
Wind State
off
off
off
off
cross-on
on
on
on
on
on
on
off
off
off
cross-off
off
off
off
off
off
off
High Tide
5:25PM1.52m
5:39AM1.55m
5:43PM1.56m
6:17AM1.53m
6:04PM1.59m
6:57AM1.46m
6:27PM1.60m
7:41AM1.37m
6:53PM1.58m
8:36AM1.26m
7:20PM1.53m
9:56AM1.15m
7:47PM1.45m
Low Tide
11:18AM0.46m
11:30PM0.48m
11:40AM0.54m
11:59PM0.38m
12:02PM0.63m
00:31AM0.32m
12:25PM0.73m
1:08AM0.31m
12:46PM0.84m
1:50AM0.34m
1:04PM0.96m
2:44AM0.40m
1:07PM1.07m
light rain
cloud
cloud
part cloud
clear
clear
clear
part cloud
light rain
rain showers
part cloud
cloud
cloud
light rain
rain showers
part cloud
rain showers
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:22
5:22
5:22
5:24
5:24
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:52
5:51
5:50
5:49
5:46
5:45
 mm
3
1
1
2
2
1
Temp °C
20
22
21
23
24
25
27
27
26
25
27
26
25
26
23
25
25
23
22
22
22
Feels °C
20
23
22
26
26
27
26
25
26
26
28
28
27
28
25
25
24
21
19
18
19
  • 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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