Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 am 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
27.8°C
1.0° 

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 25 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 9AM (local time) - 2ft (0.6m), 14s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 9PM (local time) - 5ft (1.6m), 14s period, S swell with 1,048 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 9AM (local time) - 2ft (0.6m), 14s 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 Thursday (Aug 27) at 9AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m and 10s. Another secondary swell of 0.6m and 11s is also forecast. Another secondary swell of 1.0m 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 1.6m 14s and forecast to arrive on Tuesday (Sep 01) 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 1.3m 5s period and expected on Thursday (Aug 27) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 27th Aug)2ft (0.6m) 14s
Best Surf 9AM (Thu 27th Aug)2ft (0.6m) 14s
Most Powerful 9PM (Tue 1st Sep)5ft (1.6m) 14s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s on offer.

First up, the water temp is sitting at a balmy 82°, which is about a degree and a half warmer than usual for this time of year – not crazy, but you’ll notice it’s a bit toastier than average.

Honestly, the next week or so is pretty flat and frustrating. There’s a real lull from now through the end of August. We’ve got small, weak, mostly messy waves with combined swell energy barely cracking 100 to 500 (587 on Wednesday morning, but it’s a marginal call). Wednesday morning might offer a waist-high wave around 3ft from the SSW with a 12-second period, and a cross-off wind, but the report calls it questionable. Thursday and Friday see even smaller stuff, mostly under 3ft, with energy dropping. Saturday the 29th through to Tuesday the 1st of September is about as weak as it gets – tiny knee-high waves with energy below 200, mostly poor conditions. The best of a bad lot might be Monday 31st morning: glassy wind, dead calm, but only 2ft from the east. You could get a few gutless rollers on a longboard if you’re desperate.

Now, the real story kicks in after that. The first standout is Wednesday, 2nd of September. Big Ben wakes up with a solid 6ft swell from the south, period 12 seconds, and combined energy pumping at 1111 – that’s the first real push of the forecast. The catch: winds are cross-onshore and it’s a beach/jetty setup, so it’ll be a bit lumpy. Still, for a beginner-friendly break, that’s a lot of water moving. By Thursday 3rd, it holds at 7ft from the south, still cross-shore winds making it choppy but surfable.

The next big standout is hard to ignore – Saturday 5th and Sunday 6th of September. We’re looking at a serious pulse: 10ft on Saturday from the east, period 9 seconds, energy hitting 1344 and 1513. Sunday is even bigger, 13ft from the SSE with a 12-second period and energy at 4542. That’s strong wave energy, no doubt. But here’s the thing – that’s too big for this beginner break. The forecast itself says it’s predicted to be too big. So unless you’re an expert looking for a challenge on a jetty wave, this is more of a spectacle than a session. Winds are cross and cross-onshore, so it’s not clean either. Honestly, that setup looks more interesting for kite surfing than paddle surfing.

After that, it slowly drops back. Monday 7th still has 8ft to 10ft from the south, but again cross-onshore and bumpy. By the second week, from the 8th onward, it fades fast. Tuesday 8th and Wednesday 9th see energy dropping to 928 and then 186, with waves shrinking back under 3ft and poor conditions.

So, bottom line: if you want a wave, aim for the first few days of September. The best bet for a decent paddle is Thursday 3rd morning: 7ft south swell, 12 seconds, cross-shore wind, and energy at 1212. It won’t be perfect, but it’s the best we’ve got. The big swell on the 5th and 6th is a beast but not for the faint-hearted.

Rusty.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Thu morning. Warm (max 30°C on Wed morning, min 23°C on Thu afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sat morning. Warm (max 27°C on Mon morning, min 23°C on Sat night). Wind will be generally light.

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
2
2
2
1
1
2
0
0
0
1
1
1
1
1
2
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SSW
12
0.9
SSW
12
1.4
SW
11
0.6
E
14
1
S
11
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
11
0.5
E
11
0.5
E
11
0.5
E
11
0.8
ENE
7
0.7
SSW
10
0.7
S
9
0.9
SSW
16
1.7
S
13
Wave Graph
Metric surfscale
Energy kJ
283
196
439
146
229
212
193
139
137
98
91
89
66
66
59
59
59
106
87
427
1001
Wind (km/h)
15
WSW
25
SW
25
SW
15
W
15
NNE
15
SSW
15
WSW
20
WSW
5
NNE
15
ENE
20
ENE
10
NE
10
NNE
10
NE
10
N
5
N
5
SSE
5
ESE
5
SE
10
SSE
10
SSE
Wind State
cross-off
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
glassy
glassy
glassy
glassy
on
on
High Tide
4:50PM1.50m
3:40AM1.52m
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
Low Tide
9:53AM0.22m
10:14PM0.89m
10:28AM0.21m
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
clear
clear
rain showers
mod rain
cloud
light rain
thunderstorm
part cloud
rain showers
rain showers
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:07
5:07
5:09
5:09
5:09
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:14
6:13
6:10
6:09
6:08
6:07
 mm
2
8
2
2
2
2
Temp °C
30
30
27
27
24
25
28
27
25
26
26
24
25
24
24
27
27
25
29
28
26
Feels °C
32
32
29
30
26
28
29
28
28
26
26
24
28
27
27
31
31
30
32
30
30
  • 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