Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 8 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
27.1°C
1.2° 

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


Shichirigahama surf forecast from 14 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 3PM (local time) - 5ft (1.6m), 12s period, SSE swell with offshore winds.
  • Most powerful swell: Sunday 20 Sep, 3AM (local time) - 6ft (1.8m), 14s period, SSE swell with 1,318 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 3PM (local time) - 5ft (1.6m), 12s period with SSE 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 Sunday (Sep 20) at 3PM. The primary swell is predicted to be 1.6m and 12s period with a secondary swell of 1.0m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Shichirigahama in the next 16 days are 1.8m 14s and forecast to arrive on Sunday (Sep 20) 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 0.9m 4s period and expected on Friday (Sep 18) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Sun 20th Sep)5ft (1.6m) 12s
Best Surf 3PM (Sun 20th Sep)5ft (1.6m) 12s
Most Powerful 3AM (Sun 20th Sep)6ft (1.8m) 14s

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


The Lowdown

Alright crew, Rusty here. Let’s break down what Shichirigahama has in store for the next couple of weeks. It’s a slow start, but there’s a proper window if you can wait it out.

The beginning is a total bust. From Tuesday the 15th right through to Friday the 18th, the swell is tiny and weak – the energy is barely a blip (41). Winds are all over the place, and the waves are just not there. Don’t even think about paddling out.

Things get interesting on Saturday the 19th. The swell builds to 6ft from the SSE, but the morning is messy with a cross-offshore wind. The energy is pumping up (1170), but it’s not clean yet.

Now, for the good stuff. From Sunday the 20th afternoon through to Tuesday the 22nd, we’ve got a solid 5ft to 6ft S/SSW groundswell with a nice long 12 to 14-second period. The combined energy is in the 900 to 1300 range – that’s proper moderate-to-strong power. The wind is offshore from the N/NE, so the waves will be clean and well-shaped. Sunday afternoon, all day Monday the 21st, and Tuesday morning the 22nd are your prime windows. The SSW swell direction is ideal for this river break. Water temp is about average, so no shocks. Just be aware, this spot can get busy.

Monday the 21st is the real standout. You’re looking at 5ft to 6ft S swell with a 13-second period, light offshore breezes, and combined energy of 1074. It’ll be clean, punchy, and have great shape. It’s a fun size for intermediates, but that long period means the sets will have some weight.

Wednesday the 23rd is a different animal. A huge 12ft SSW swell hits in the morning, but the wind is onshore from the S and the period drops to 11 seconds. The energy is massive (4822), but the quality will be poor. That’s for experts only, and it’s going to be a heavy, messy beast. The afternoon gets even worse with a strong SSW storm wind.

From Thursday the 24th to Sunday the 27th, the swell drops right off to small, weak 2ft waves (energy down to 73-282). The wind is mostly offshore, but there’s just not enough swell to make it worthwhile.

We get a small pulse on Monday the 28th and Tuesday the 29th. A 4ft to 4ft S/SSW swell with a very long 14-second period arrives. Energy is moderate (550-700). Winds are fresh offshore, so it’ll be clean, but that long period can make a river break a bit straight. Worth a look for the keen ones.

Wednesday the 30th shows a promising bump: a 6ft SSW swell with a 15-second period. That’s very long period groundswell, and the combined energy jumps to 1685. The wind is a strong offshore, which will make it clean but tough to paddle into. This one is promising, but it’s a way off, so keep an eye on it.

So, the bottom line: the first week is a write-off, then we get a solid 3-day run from Sunday the 20th afternoon to Tuesday the 22nd. That’s your best chance. After that, it’s a waiting game for the next pulse.

Rusty.

Short Range Forecast

Heavy rain (total 63mm), heaviest during Wed night. Warm (max 26°C on Mon night, min 19°C on Wed night). Winds increasing (light winds from the N on Tue afternoon, fresh winds from the N by Wed night).

Days 5-7 Weather Summary

Heavy rain (total 59mm), heaviest during Sat night. Warm (max 25°C on Sun afternoon, min 19°C on Thu night). Winds decreasing (strong winds from the N on Sat morning, light winds from the NNE by Sun afternoon).

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
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
1
0
2
2
2
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
E
14
0.4
SE
8
1
S
5
0.5
SE
7
0.4
SE
7
0.4
SE
8
0.4
SE
8
0.2
SSE
8
0.2
SSE
9
0.2
E
11
0.3
SE
18
0.9
SE
16
1.6
SE
15
1.7
SE
14
1.7
SSE
13
1.4
SE
12
1.7
SSE
13
1.6
SSE
12
1.6
S
13
Wave Graph
Metric surfscale
Energy kJ
33
17
52
22
12
17
17
7
8
9
54
421
1048
1170
946
607
983
727
848
Wind (km/h)
25
SW
20
SW
10
SW
25
NNE
20
NNE
20
N
40
N
30
N
30
NNE
35
N
40
NNE
35
NNE
35
N
40
N
35
N
30
N
25
N
20
NNE
15
NE
Wind State
on
on
cross-on
off
off
off
cross-off
off
off
off
off
off
off
cross-off
off
off
off
off
off
High Tide
6:57AM1.46m
6:27PM1.60m
7:41AM1.37m
6:53PM1.58m
8:36AM1.26m
7:20PM1.53m
9:56AM1.15m
7:47PM1.45m
8:14PM1.35m
4:05PM1.31m
9:47PM1.23m
Low Tide
00:31AM0.32m
12:25PM0.73m
1:08AM0.31m
12:46PM0.84m
1:50AM0.34m
1:04PM0.96m
2:44AM0.40m
1:07PM1.07m
4:02AM0.48m
6:00AM0.52m
8:47PM1.23m
cloud
light rain
thunderstorm
thunderstorm
light rain
light rain
heavy rain
light rain
cloud
cloud
cloud
part cloud
light rain
heavy rain
heavy rain
rain showers
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:24
5:24
5:26
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:49
5:46
5:45
5:44
5:43
 mm
5
4
5
2
5
39
3
1
12
21
25
Temp °C
26
24
24
23
21
21
20
20
20
20
20
21
20
19
20
21
24
25
24
Feels °C
26
25
27
23
20
21
18
16
16
16
14
16
15
14
17
19
23
25
26
  • Map Icons:
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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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