Shichirigahama Surf Break

Lat Long: 35.30° N 139.51° E

Shichirigahama Surf Forecast and Surf Report

Issued: 8 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Shichirigahama sea temperature is
25.6° C
0.1° 

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


Shichirigahama surf forecast from 17 Jul 2026:

  • Most powerful swell: Monday 20 Jul, 6PM (local time) - 3ft (0.9m), 4s period, SSW swell with 25 kJ wave energy.

Best Forecast Surf Conditions for Shichirigahama this week:

The most powerful waves expected at Shichirigahama in the next 16 days are 0.9m 4s and forecast to arrive on Monday (Jul 20) at 6PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 6PM (Mon 20th Jul)3ft (0.9m) 4s

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


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you – this forecast for Shichigahama is a real slow burner. We’ve got a long stretch of tiny, onshore slop to start, and it’s not until the very end of the month that we see any real pulse of energy. If you’ve got patience, there’s a window of proper swell, but it’s not for the faint-hearted.

The first week and a half is pretty grim. From Saturday the 18th of July right through to the 27th, we’re stuck with ankle-to-knee high junk. The wind is mostly onshore or cross-onshore, and the wave energy is weak, sitting between 20 and 72 (combined energy). The water temp is about average for the time of year, nothing to write home about. There’s a brief moment on the morning of the 23rd and 24th where the wind goes light cross-off, leaving the surface clean, but the swell is barely a ripple (0.3ft to 1ft). Not worth paddling out for.

Then, things start to wake up around Monday the 27th of July. The afternoon sees a bump to 4ft from the SSE, with a period of 13 seconds and combined energy of 379 – that’s moderate energy, but the onshore wind (16 mph) just ruins it. The next couple of days, the 28th and 29th, the swell jumps up to 5ft and then 7ft, with the SSE/S swell direction matching the optimum (SSW). The period is solid, 12 to 15 seconds, so there’s proper groundswell in the water. But the wind is still onshore or cross-onshore, making it choppy and messy. The morning of the 29th has a light cross-onshore with combined energy of 1695 – that’s strong energy – but the surf is only marginal.

The real standout comes on Thursday morning the 30th of July. That’s the pick of the entire forecast. The swell is a solid 7ft from the south, with a 14-second period and combined energy of 1708 (very strong). The wind is a clean cross-offshore from the ENE at 9 mph, and the forecast says “excellent surf conditions for experienced surfers.” This is a proper, powerful groundswell hitting the river mouth. However, 7ft is well over the beginner-friendly mark; this is for experienced surfers only. The long period (14 seconds) will mean long lulls between sets, but the wave shape at a river break should be good. Short period sets are a non-issue here.

The Friday the 31st of July morning is also a big one, with a 7ft SSW swell, 14-second period, and a strong offshore NNE wind at 19 mph. Combined energy is 1834. That’s a clean, powerful setup, but the wind is fresh and the surf is still only rated as “marginal” in the morning, while the afternoon looks excellent again with a light cross-off. The break (Shichigahama) is a river mouth, so it handles that long-period groundswell well. Crowds are possible here, so expect plenty of local chargers.

After that, it drops off fast. The first of August sees the swell dropping to 5ft with a stormy cross-shore wind, and by Sunday the 2nd, it’s back to small, weak junk.

So, bottom line: if you’re a competent surfer, circle the mornings of Thursday the 30th and Friday the 31st of July. The 30th morning is the cleanest with that cross-offshore wind and a solid 7ft. The 31st offers a bigger 7ft, but the wind is stronger. Don’t bother before that.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri night. Warm (max 29°C on Mon afternoon, min 25°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm (max 30°C on Thu morning, min 26°C on Wed night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
SSE
9
0.3
SE
9
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.7
S
4
0.5
S
4
0.2
SSE
9
0.7
SSW
4
0.7
SSW
4
0.6
SSW
4
0.2
ESE
11
0.5
SSW
4
0.3
SSW
4
0.4
SSW
5
0.4
SSW
4
0.3
SSW
6
0.2
SSE
10
0.2
SSE
10
Wave Graph
Metric surfscale
Energy kJ
8
12
11
10
9
12
7
7
14
16
12
12
10
4
8
6
6
10
12
Wind (km/h)
15
SSE
10
SSE
20
S
15
S
15
S
25
S
15
SSW
5
S
20
S
15
SSW
5
SSW
20
SSW
10
SW
5
SE
15
S
10
NE
15
NE
15
S
5
ENE
Wind State
cross-on
cross-on
on
cross-on
on
cross-on
on
on
on
on
on
on
cross-on
cross-on
on
off
cross-off
cross-on
glassy
High Tide
6:24AM1.45m
7:45PM1.45m
7:12AM1.37m
8:13PM1.45m
8:06AM1.27m
8:44PM1.45m
9:09AM1.15m
9:18PM1.42m
10:39AM1.04m
9:55PM1.40m
10:41PM1.37m
Low Tide
00:49AM0.81m
1:02PM0.26m
1:31AM0.73m
1:34PM0.39m
2:21AM0.67m
2:05PM0.55m
3:19AM0.62m
2:35PM0.72m
4:33AM0.58m
2:58PM0.89m
6:01AM0.51m
rain showers
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:39
4:39
4:41
4:41
4:41
4:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:54
6:54
6:53
6:52
6:52
 mm
1
4
5
Temp °C
26
27
27
26
27
27
27
28
29
28
29
29
29
29
29
28
30
28
27
Feels °C
28
29
29
28
28
28
29
32
31
30
33
31
32
34
33
33
34
31
31
  • 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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