Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 2 am 03 Aug 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 2 Aug 2026:

  • Best quality surf: Wednesday 5 Aug, 3PM (local time) - 8ft (2.5m), 16s period, SSE swell with offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 12PM (local time) - 8ft (2.5m), 16s period, SSE swell with 3,786 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 3PM (local time) - 8ft (2.5m), 16s 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 Wednesday (Aug 05) at 3PM. The primary swell is predicted to be 2.5m and 16s 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 2.5m 16s and forecast to arrive on Wednesday (Aug 05) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Wednesday (Aug 05) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Wed 5th Aug)8ft (2.5m) 16s
Best Surf 3PM (Wed 5th Aug)8ft (2.5m) 16s
Most Powerful12PM (Wed 5th Aug)8ft (2.5m) 16s

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


The Lowdown

Alright, folks. Rusty here. Let’s break it down.

First up, we’ve got a run of surf coming for Shichirigahama. It’s a river mouth, a bit inconsistent, but when it gets the right swell, it can be good. Water temp is about normal for the season.

The week starts with a long-period groundswell. Monday and Tuesday, the 3rd and 4th, are small – 2ft to 6ft from the SE – but the wind is a clean offshore, so the waves will be clean. The energy is moderate (277–1694). Wednesday the 5th gets a big jump, with the swell hitting 8ft to 10ft from the SSE. That’s expert-only territory, especially with a 16-second period. The energy is strong (3731–4036). The wind stays offshore or cross-offshore, so the shape is there, but it’s big.

The real standout is Thursday morning, the 6th of August. A solid 10ft swell from the S, 16-second period, and a moderate offshore wind. The combined energy is pumping (4061), and conditions are excellent for experienced surfers. This is the best window. The river mouth will handle that long-period groundswell, giving you powerful, lined-up waves. The afternoon turns onshore with a chop, so get out early.

Friday the 7th holds strong, with 8ft to 8ft from the S, period dropping to 15 seconds, but the wind stays clean. The energy is still strong (2998–3528). The afternoon session Friday is a good call, with a gentle cross-offshore breeze. That’s a great second option. Saturday the 8th drops to 6ft from the SSW, but it’s clean and consistent, with moderate energy. Good for the intermediate crew.

After that, the swell fades. Sunday the 9th has 5ft from the SSW with a nice offshore wind, but the energy drops to moderate (1019). It’s surfable, but not the standout. From Monday the 10th onward, it’s a slow decline. The wind stays mostly offshore, but the swell drops below 3ft through the middle of the week, and the energy gets weak. Thursday the 13th and Friday the 14th have a moment of glassy conditions with tiny 2ft to 3ft waves, but it’s ordinary. The last few days from the 15th to the 18th are flat and poor, with strong winds making it hard to even paddle into the knee-high slop.

So, the takeaway: Thursday the 6th is the day to circle. Big, clean, powerful swell. Friday the 7th afternoon is a solid backup. After that, it’s a slow fade to nothing. The gap of poor surf runs from about the 10th through the end of the outlook.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 23°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 31mm), heaviest during Fri night. Warm (max 30°C on Thu morning, min 25°C on Sat night). Wind will be generally light.

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
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)
1
1
2
2
2
3
3
4
4
4
2
3
4
2
2
4
1
3
1
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)
0.7
SE
16
0.9
SE
16
1.1
SE
17
1.4
SE
17
1.8
SE
16
2.3
SE
16
2.5
SSE
16
2.5
SSE
16
2.5
SSE
15
2.5
S
15
2.5
S
16
2.5
S
16
2.5
S
16
2.3
S
15
1.9
S
14
1.9
S
14
1.8
S
14
1
SW
14
1
S
13
0.8
SW
15
0.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
258
448
772
1120
1611
2676
3731
3569
3115
3093
3588
3230
3025
2405
1463
1382
1208
390
335
266
243
Wind (km/h)
30
NNE
30
NNE
30
NNE
30
NNE
30
ENE
30
NNE
30
NNE
20
NE
25
NNE
25
NE
15
ESE
15
ENE
10
NE
20
ESE
15
ESE
10
E
15
S
15
ENE
30
NE
30
NE
30
NNE
Wind State
off
off
off
off
cross-off
off
off
off
off
off
cross
cross-off
off
cross
cross
cross-off
on
cross-off
off
cross-off
off
High Tide
8:00PM1.50m
8:27AM1.25m
8:29PM1.48m
9:35AM1.12m
9:01PM1.45m
11:35AM1.03m
9:37PM1.40m
10:28PM1.35m
5:09PM1.29m
11:56PM1.32m
5:08PM1.37m
1:34AM1.33m
Low Tide
1:31PM0.54m
2:25AM0.56m
1:56PM0.69m
3:24AM0.54m
2:16PM0.86m
4:41AM0.53m
2:02PM1.01m
6:19AM0.48m
7:46AM0.40m
8:22PM1.25m
8:49AM0.30m
9:37PM1.20m
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
thunderstorm
rain showers
rain showers
thunderstorm
thunderstorm
rain showers
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:50
4:52
4:52
4:52
4:54
4:54
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:44
6:43
6:42
6:40
6:39
6:38
6:37
 mm
1
6
3
4
16
1
Temp °C
25
26
24
26
27
23
26
28
26
30
29
27
29
30
28
29
29
26
29
29
25
Feels °C
23
24
21
22
24
20
24
28
26
31
30
29
32
31
29
32
30
28
26
25
20
  • 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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