Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
28.1°C
1.4° 

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 27 Aug 2026:

  • Best quality surf: Friday 28 Aug, 9AM (local time) - 2.5ft (0.8m), 12s period, E swell with cross-offshore winds.
  • Most powerful swell: Thursday 3 Sep, 6AM (local time) - 5.5ft (1.7m), 13s period, S swell with 972 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 9AM (local time) - 2.5ft (0.8m), 12s 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 Friday (Aug 28) at 9AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.5m and 9s. Another secondary swell of 1.1m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Big Ben in the next 16 days are 1.7m 13s and forecast to arrive on Thursday (Sep 03) 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 1.1m 6s period and expected on Saturday (Aug 29) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 28th Aug)2.5ft (0.8m) 12s
Best Surf 9AM (Fri 28th Aug)2.5ft (0.8m) 12s
Most Powerful 6AM (Thu 3rd Sep)5.5ft (1.7m) 13s

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


The Lowdown

Alright, surfers, Rusty here with the full 16-day picture for Big Ben. This break is a bit of a mixed bag – it's a beginner-friendly beach and jetty setup that's inconsistent, but when it does fire, it can be a lot of fun. The water is sitting at a warm 82°, which is a touch warmer than normal for this time of year, so you'll be comfortable in a spring suit or maybe just boardies.

We're starting off with a bit of a slow grind. Thursday the 27th is a write-off – we've got a tiny 2-foot east swell with weak energy (357), and a cross-off wind is making it look messy. Friday the 28th looks a bit better. The morning has a 3-foot east swell with moderate energy (369) and a cross-off breeze, but the real standout is Friday afternoon. The wind goes glassy, the swell holds at 2 feet from the east, and the energy is moderate (230). That's the best window for a clean, cruisy session for the first week.

Saturday the 29th through Monday the 31st is a flat, choppy mess. We've got onshore winds, tiny 2-foot to 3-foot swell, and poor conditions. Tuesday the 1st of September and Wednesday the 2nd are no better – the swell picks up a bit but it's all cross-onshore and lumpy. Thursday the 3rd is a write-off with fresh 22 mph winds.

Now, here's where it gets interesting. Friday the 4th of September, the afternoon shows a massive 8-foot swell from the SSE, with very strong energy (1306) and a light cross-off breeze. This is a big, powerful groundswell with a period of 10 seconds – it's going to be clean, but at 8 feet, this is strictly for experts. This is the standout session of the entire forecast. The morning of the 4th is even bigger at 10 feet, but with a 22 mph cross wind, it's just too dangerous and lumpy.

Saturday the 5th and Sunday the 6th are still big, with 6-foot to 8-foot swell, but the winds are messy and cross-shore, making it marginal. Monday the 7th is similar. But then, Tuesday the 8th of September morning is another absolute gem. We've got an 8-foot S swell with very strong energy (1548) and absolutely glassy conditions. That's an excellent call for experienced surfers who want to get out there when it's pristine. The afternoon of the 8th sees a 10-foot swell, but it's too big for the break and the wind is cross-onshore.

The last few days, Wednesday the 9th through Friday the 11th, are all poor. The swell is dropping and the wind is howling from the SSW, creating lumpy, messy conditions. Not worth a paddle.

So, to wrap it up: the best bet is the Friday afternoon, August 4th, for a clean, expert-level swell, or the Tuesday morning, August 8th, for glassy conditions on a big swell. Get on it.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu afternoon, min 23°C on Sat night). Winds decreasing (fresh winds from the SW on Thu afternoon, calm by Fri afternoon).

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Tue morning. Warm (max 29°C on Mon morning, min 25°C on Sun afternoon). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
2
2
0
0
0
1
0
0
1
0
0
0
0
0
1
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)
0.7
E
13
0.8
E
13
0.8
E
12
0.7
E
12
0.7
E
12
0.6
E
12
0.6
E
11
0.6
E
11
0.5
E
12
0.5
E
12
0.5
E
11
0.5
S
11
0.7
S
10
0.6
ESE
12
0.9
ESE
11
1
E
11
1.1
E
12
1.2
S
10
1.2
S
10
1.2
S
10
Wave Graph
Metric surfscale
Energy kJ
173
212
193
139
137
98
91
89
67
67
61
66
106
115
202
240
314
320
302
302
Wind (km/h)
30
SW
25
SW
5
W
0
SE
10
E
15
ENE
10
E
10
N
10
ENE
5
ESE
5
S
15
SW
20
SSW
10
SSW
10
S
15
SSE
10
SSE
20
S
20
S
25
SSW
Wind State
cross
cross
cross-off
glassy
cross-on
cross
cross-on
cross-off
cross
on
glassy
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:08PM1.52m
4:23AM1.58m
5:27PM1.54m
5:03AM1.61m
5:47PM1.54m
5:42AM1.60m
6:06PM1.55m
6:21AM1.55m
6:26PM1.55m
7:02AM1.47m
6:45PM1.54m
7:47AM1.35m
7:06PM1.51m
Low Tide
10:42PM0.76m
10:59AM0.24m
11:10PM0.64m
11:29AM0.31m
11:40PM0.54m
11:57AM0.41m
00:11AM0.46m
12:23PM0.54m
00:45AM0.42m
12:48PM0.68m
1:22AM0.41m
1:09PM0.82m
2:05AM0.43m
light rain
cloud
cloud
part cloud
part cloud
rain showers
light rain
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:09
5:09
5:09
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:13
6:10
6:09
6:08
6:07
6:06
 mm
1
1
1
1
4
2
3
Temp °C
29
27
29
29
26
27
26
25
26
26
26
29
29
26
29
29
26
29
29
27
Feels °C
30
29
33
34
30
29
29
29
30
30
29
30
31
30
31
32
30
30
31
29
  • 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