Big Ben Surf Break

Big Ben Surf Forecast and Surf Report

Lat Long: 35.12° N 140.12° E

Issued: 2 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
22.9° C

1.2°C colder than average for this time of year

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


Big Ben surf forecast from 4 Jul 2026:

  • Best quality surf: Thursday 9 Jul, 3AM (local time) - 8ft (2.4m), 16s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Friday 10 Jul, 9PM (local time) - 8ft (2.5m), 17s period, SSW swell with 4,090 kJ wave energy.
  • Next surfable swell (1★+): Sunday 5 Jul, 3AM (local time) - 1.5ft (0.5m), 8s period with E swell.

Best Forecast Surf Conditions for Big Ben this week:

The surf forecast for Big Ben over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 05) at 3AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.5m and 4s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big Ben in the next 16 days are 2.5m 17s and forecast to arrive on Friday (Jul 10) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 7s period and expected on Monday (Jul 06) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 5th Jul)1.5ft (0.5m) 8s
Best Surf 3AM (Thu 9th Jul)8ft (2.4m) 16s
Most Powerful 9PM (Fri 10th Jul)8ft (2.5m) 17s

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


Updates in  hr  min  s Forecast update imminent

Hey, Rusty here again, breakin' it down for you.

We're starting off slow at Big Ben. Those first few days are a write-off with weak, small waves and ugly winds blowing right onshore or across it. The water temp is about 73° F, which is a bit chillier than normal for this time of year.

Now, things get real interesting around Tuesday the 7th of July, but it's not for everyone. The swell is gonna jack up, and by Wednesday the 8th, we're looking at waves pushing 8 to 9 feet from the south-southeast. That's a long-period groundswell, 16 seconds between sets, with a massive amount of energy behind it (4698). The problem is the wind is cross-onshore, and the forecast says these waves are gonna be too big for this spot. It's experts-only territory, and even then, the wind will have it a bit lumpy.

Your best bet for a big-wave session is probably Thursday the 9th of July in the morning. You've still got that 8-foot swell from the SSE, but the wind is just a light zephyr from the east. It's the cleanest you'll see it for the biggest stuff, but that long period (14 to 16 seconds) is going to make it dumpy and powerful on a beach break. Not one for the faint of heart.

After that big pulse, it fades fast. By the weekend of the 12th, it's down to 7 feet and dropping. By Monday the 14th, we're back to tiny, weak surf. There's one bright spot on Thursday the 16th of July, where we get a little clean-up with a light offshore breeze from the NNE, but the swell is a pathetic 2 feet. You could maybe get a squeaker on a longboard, but that's about it.

So, for the big-wave hunters who love a challenge, the 8th through the 10th of July is your window. For everyone else, it's looking like a long, flat stretch ahead.

Rusty.

Short Range Forecast

Heavy rain (total 42mm), heaviest during Mon night. Warm (max 24°C on Sun morning, min 21°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the ENE by Mon night).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Fri morning. Warm (max 25°C on Thu morning, min 20°C on Tue night). Wind will be generally light.

Sat
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
2
4
4
3
4
2
3
3
3
1
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
ENE
8
0.6
E
8
0.5
E
8
1.1
SE
5
1.7
SE
6
2.4
ESE
7
2.5
ESE
7
2.1
E
7
1.5
SSE
15
1.7
SSE
15
1.8
SSE
16
2.5
SSE
16
2.3
SSE
16
2.5
S
16
2.1
S
14
2.5
S
15
2.4
S
14
2.4
S
16
1.6
SSW
17
2.5
SSW
17
2.5
SSW
16
Wave Graph
Metric surfscale
Energy kJ
50
46
29
55
224
512
687
478
1042
1327
1527
3178
2649
3182
1832
2911
2379
2898
1443
4090
3565
Wind (km/h)
15
SSE
10
S
10
SE
20
SE
15
ESE
15
ESE
20
ESE
30
ENE
30
NE
25
NNE
25
NNE
20
NE
25
NE
15
NE
20
NE
20
ENE
15
NE
15
E
15
ESE
10
SE
15
SSE
Wind State
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross-on
on
on
on
High Tide
8:14PM1.39m
7:15AM1.31m
8:44PM1.37m
8:13AM1.21m
9:15PM1.35m
9:28AM1.11m
9:50PM1.34m
11:16AM1.05m
10:30PM1.34m
1:37PM1.08m
11:19PM1.34m
3:18PM1.19m
00:16AM1.35m
Low Tide
1:51AM0.82m
1:55PM0.38m
2:43AM0.76m
2:32PM0.54m
3:44AM0.69m
3:11PM0.71m
4:55AM0.61m
3:58PM0.87m
6:12AM0.51m
5:09PM1.01m
7:21AM0.39m
6:54PM1.11m
8:19AM0.26m
light rain
rain showers
rain showers
light rain
light rain
light rain
mod rain
heavy rain
light rain
light rain
part cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
rain showers
thunderstorm
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:30
4:30
4:31
4:31
4:31
4:31
4:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:57
6:57
6:55
6:55
6:55
6:55
 mm
1
5
3
1
1
3
7
19
2
1
3
1
Temp °C
23
22
24
23
22
22
21
21
21
21
21
24
24
22
25
25
23
25
25
24
25
Feels °C
24
24
25
23
22
22
21
20
19
19
20
22
23
23
26
26
25
27
27
27
28
Swell 1
Height (m)
Direction
Period (s)
0.6
ENE
8
0.6
E
8
0.5
E
8
0.4
ENE
8
0.4
SE
14
0.6
SE
14
0.6
SE
13
0.9
SE
12
1.5
SSE
15
1.7
SSE
15
2.4
E
9
2.5
SSE
16
2.3
SSE
16
2.5
S
16
2.1
S
14
2.5
S
15
2.4
S
14
2.4
S
16
1.9
S
14
2.5
SSW
17
2.5
SSW
16
Energy kJ
50
46
29
19
54
147
128
220
1042
1327
950
3178
2649
3182
1832
2911
2379
2898
1443
4090
3565
Swell 2
Height (m)
Direction
Period (s)
0.3
NE
10
0.3
SE
9
0.3
ESE
10
0.4
ESE
10
0.2
SSE
18
0.4
SE
17
0.6
SSE
16
0.8
SSE
15
0.3
SW
7
0.7
SSE
20
1.8
SSE
16
2
E
9
1.9
E
9
1.6
E
8
1.3
S
17
1.2
E
8
1
E
8
1
E
8
1.6
SSW
17
0.8
E
8
0.8
E
9
Energy kJ
16
13
21
35
32
76
169
256
7
437
1527
642
554
351
919
172
120
117
1427
76
93
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
11
0.3
NE
10
0.2
SSE
10
0.2
SSE
10
0.1
NE
9
0.2
WSW
7
0.1
SW
7
0.1
SW
6
0.4
SW
7
1.4
SSE
18
0.8
S
21
1.2
S
19
0.9
S
19
1.3
E
8
0.8
SSW
19
0.9
E
8
Energy kJ
12
15
10
9
3
4
2
2
13
1215
573
1048
567
208
492
93
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
5
0.6
S
4
0.5
S
4
1.1
SE
5
1.7
SE
6
2.4
ESE
7
2.5
ESE
7
2.1
E
7
2.2
ENE
8
2.3
ENE
8
2.5
ENE
9
2.3
ENE
9
2.1
E
9
Energy kJ
9
13
9
55
224
512
687
478
555
740
1177
826
694
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
2
3
4
4
4
4
4
4
4
4
4
4
5
4
Distance (km)
30
30
534
184
81
48
534
112
184
184
55
55
29
29
29
29
6
29
29
30
30
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
5
5
4
4
4
5
4
5
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
2
2
3
3
4
5
5
6
6
5
6
7
6
4
8
6
Header Global
Rating
(10 max)
5
5
5
9
6
5
6
8
7
5
5
9
8
9
9
5
7
5
4
8
4
  • 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 Big Ben Surf forecast

The above surf forecast table for Big Ben provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Ben can be found by selecting the local surf guide option on the grey menu. Our Big Ben 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 (Big Ben) 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 Big Ben 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.

Big Ben is 3 km (2 miles) from Kawaguchi. If you plan a holiday in Chiba, look for hotels and other accommodation in Kawaguchi. Kawaguchi has rooms for a wide range of budgets as well as car hire and transport links.

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