Big Ben Surf Break

Big Ben Surf Forecast and Surf Report

Lat Long: 35.12° N 140.12° E

Issued: 8 am 05 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 5 Jul 2026:

  • Best quality surf: Saturday 11 Jul, 6AM (local time) - 10ft (3.0m), 17s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Saturday 11 Jul, 6AM (local time) - 10ft (3.0m), 17s period, SSW swell with 4,391 kJ wave energy.
  • Next surfable swell (1★+): Friday 10 Jul, 12AM (local time) - 8ft (2.5m), 15s period with S 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 Friday (Jul 10) at 12AM. The primary swell is predicted to be 2.5m and 15s period with a secondary swell of 1.0m and 8s. 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 3.0m 17s and forecast to arrive on Saturday (Jul 11) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 6s period and expected on Tuesday (Jul 07) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 10th Jul)8ft (2.5m) 15s
Best Surf 6AM (Sat 11th Jul)10ft (3.0m) 17s
Most Powerful 6AM (Sat 11th Jul)10ft (3.0m) 17s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here. Let's take a look at what's headed our way out at Big Ben over the next couple of weeks.

The first few days are a total loss. Onshore winds and poor surf through Sunday and Monday—save your energy. The water's sitting at 73°, which is about 2° colder than the usual for this time of year.

Things finally get moving Tuesday the 7th. A long-period groundswell builds from the southeast, and by Tuesday afternoon the combined energy is strong at 2598. The swell's pushing 8ft at 14 seconds, which is serious size for a beach/jetty setup, and with cross-shore winds, it's going to be a handful. Expert-only gear. The peak comes Wednesday the 8th with 7ft at 16 seconds out of the SSE, energy readings over 3500. Proper, raw power. But the wind stays cross-onshore, keeping it lumpy. Wednesday morning with a gentle cross-shore breeze is about the best chance.

Thursday the 9th holds 7ft to 7ft from the south, 14-second periods, with light cross-onshore breezes. It's still marginal but there could be a few bombs if you read the tide right. Friday the 10th keeps the swell at 8ft from the south with very long 16-second periods, but the wind turns onshore again. A lot of water moving, but quality is suspect. Saturday the 11th is similar—8ft SSW swell at 16-17 seconds, energy over 4000—but always cross-onshore and bumpy. You're earning every wave.

Sunday the 12th sees the drop start, and by Monday the 13th we're back to poor conditions. Then we have a long, flat stretch—nothing worth paddling out for almost a week.

Then out of nowhere, a small window opens Saturday the 18th. The morning is glassy—dead calm, with a clean 3ft easterly swell at 10 seconds. The combined energy is weak at 280, but it's surfable and clean. For a beginner, this is actually the best wave of the whole run: small, clean, and manageable. But it's inconsistent, so don't expect a crowded peak. That window is gone by afternoon as the wind shifts back.

Sunday the 19th and Monday the 20th are small, short-period and marginal again, mostly under 3ft with light cross-onshore breezes.

The standout for size is definitely Wednesday the 8th, but it's expert-only. The sleeper pick is Saturday morning the 18th—absolutely glassy, tiny, clean waves, perfect for a beginner. The second week is mostly flat and average, so don't bank on much.

Rusty, signing off.

Short Range Forecast

Heavy rain (total 24mm), heaviest during Mon night. Warm (max 24°C on Sun morning, min 20°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Fri morning, min 21°C on Wed night). Wind will be generally light.

Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
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
2
2
3
3
3
4
4
2
4
4
2
3
3
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SE
5
1.4
SE
6
1.6
SE
7
1.5
SE
7
1.6
ESE
7
1.7
ESE
7
1.4
SE
15
2.3
ESE
14
1.6
SSE
16
2.2
SSE
16
2.2
SSE
16
2.5
SSE
16
2.1
S
14
2
S
14
2.5
S
15
2.5
S
16
2.5
S
16
2.5
SSW
17
2.5
SSW
17
2.5
SSW
16
2.4
SSW
16
Wave Graph
Metric surfscale
Energy kJ
60
139
221
204
229
255
905
2089
1184
2599
2338
2905
1832
1617
2652
3103
3182
4043
4001
3522
2856
Wind (km/h)
15
SE
20
ESE
15
ESE
15
E
20
E
15
ENE
15
NE
20
ENE
10
ENE
15
ENE
15
E
10
E
10
E
10
ESE
5
ESE
5
ESE
15
SSE
10
S
15
S
20
S
15
S
Wind State
on
on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
glassy
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
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
4:12PM1.29m
1:17AM1.38m
Low Tide
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
8:23PM1.14m
rain showers
part cloud
cloud
light rain
light rain
heavy rain
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
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
6:55
6:55
6:55
6:55
 mm
2
4
4
14
Temp °C
24
24
22
21
21
21
23
24
22
25
24
21
25
25
22
26
26
23
25
25
24
Feels °C
24
24
22
22
20
22
22
23
23
25
24
21
26
26
24
28
28
25
27
26
26
Swell 1
Height (m)
Direction
Period (s)
0.5
E
8
0.4
ENE
8
1.6
SE
7
0.7
SE
14
0.7
SE
12
0.9
SE
12
1.4
SE
15
2.3
ESE
14
2
E
8
2.2
SSE
16
2.2
SSE
16
2.5
SSE
16
2.1
S
14
2
S
14
2.5
S
15
2.5
S
16
2.5
S
16
2.5
SSW
17
2.5
SSW
17
2.5
SSW
16
2.4
SSW
16
Energy kJ
29
19
221
179
151
192
905
2089
507
2599
2338
2905
1832
1617
2652
3103
3182
4043
4001
3522
2856
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
10
0.4
SE
14
0.4
SE
17
0.6
SSE
16
0.7
SSE
15
0.2
WSW
6
0.5
SSE
19
1.6
SSE
16
1.8
E
8
1.6
E
8
1.3
E
8
1.4
S
17
1.5
S
16
1
E
8
0.9
ESE
8
0.8
ESE
10
0.8
ESE
9
0.6
E
9
0.6
E
9
0.5
E
9
Energy kJ
20
20
54
76
169
201
4
207
1184
472
358
217
1077
1193
134
107
128
118
60
60
41
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
10
0.1
NE
9
0.4
ESE
11
0.3
ENE
8
0.2
WSW
7
0.1
SW
6
1.1
SSE
18
0.7
S
21
1.1
S
19
0.9
S
19
1.1
E
8
1
E
7
0.8
E
10
0.1
SE
15
0.4
SSE
9
Energy kJ
9
3
37
12
4
2
844
436
873
579
142
108
120
8
35
Wind waves
Height (m)
Direction
Period (s)
1.1
SE
5
1.4
SE
6
1.5
SE
7
1.6
ESE
7
1.7
ESE
7
1.6
E
7
1.8
E
7
Energy kJ
60
139
204
229
255
243
302
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
1
1
2
3
4
4
4
4
4
4
4
4
4
5
5
4
4
Distance (km)
534
81
29
48
81
29
29
29
22
29
29
29
29
29
0
29
81
30
30
30
30
Best forecast wave conditions in Chiba
Rating
(10 max)
2
3
4
4
4
5
5
4
4
4
4
5
5
5
4
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
2
2
2
3
4
4
4
5
5
5
5
4
5
5
4
8
9
9
5
Header Global
Rating
(10 max)
5
9
7
5
6
8
7
5
5
9
8
9
9
5
5
5
5
8
7
6
8
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Big Ben:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Ben surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest