Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
28.1°C
1.5° 

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 31 Aug 2026:

  • Best quality surf: Monday 7 Sep, 6AM (local time) - 10ft (3.0m), 9s period, E swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 9PM (local time) - 11ft (3.5m), 12s period, SSE swell with 3,546 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 1 Sep, 6AM (local time) - 3ft (0.9m), 12s period with ESE 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 Tuesday (Sep 01) at 6AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.5m and 10s. Another secondary swell of 0.9m and 7s 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 3.5m 12s and forecast to arrive on Monday (Sep 07) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Sep 04) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Tue 1st Sep)3ft (0.9m) 12s
Best Surf 6AM (Mon 7th Sep)10ft (3.0m) 9s
Most Powerful 9PM (Mon 7th Sep)11ft (3.5m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s coming down the line for Big Ben.

Right off the bat, we’ve got a rough start. The first few days are a write-off with poor surf conditions, so you’re looking at a gap of no real surf until the morning of Wednesday, 2nd September. That’s your first real chance to get wet.

The water temp is sitting at 83°F, which is a touch warmer than normal for this time of year, so you can leave the rubber at home.

Wednesday morning, 2nd September, is the standout early on. It’s glassy, with a light 3ft swell from the east, period of 10 seconds. The combined energy is moderate at 227. It’s not big, but it’ll be clean and fun for a beginner-friendly spot like Big Ben. The wind is absolutely dead calm – that’s a major positive. Keep in mind this break is inconsistent, so you’ll have to be patient for the sets.

The rest of that week and into the weekend is a bit messy with onshore winds and choppy conditions. The swell does pick up, but the wind kills it.

Now, look ahead to Monday morning, 7th September. There’s a big pulse of swell coming in at 10ft from the east, with a period of 9 seconds and a combined energy of 2053 – that’s strong. However, the guidance tells us this swell is predicted to be too big for this break. The wind is offshore and clean, but the size is expert-only territory. If you’re not a pro, give it a miss.

The period from the 8th to the 9th of September sees dropping swell, but still some clean, offshore winds. The best of that run is Wednesday afternoon, 9th September, with 6ft from the SSE, period of 11 seconds, and combined energy of 869. That’s moderate energy, and the wind is clean. It’s a solid session for the more experienced surfers, as the swell is pushing over 5ft.

After that, it’s a long stretch of poor to marginal conditions, with strong onshore winds and a lot of stormy weather on the 10th and 11th. The swell is big but messy. The whole second week takes a dive, with mostly onshore wind and choppy surf. You’ll be waiting until the 14th of September for a chance at something, but it’s small and onshore – not worth the drive.

The best call in the whole outlook is the Wednesday morning, 2nd September. Glassy, small, and clean. It’s the only true winner.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu morning. Warm (max 29°C on Thu morning, min 23°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 61mm), heaviest during Fri afternoon. Warm (max 29°C on Thu afternoon, min 20°C on Fri afternoon). Winds increasing (light winds from the SW on Thu night, fresh winds from the NE by Sun morning).

Mon
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
0
2
2
1
1
1
0
1
0
0
0
2
1
1
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
ESE
14
0.8
ESE
12
0.9
ESE
12
1.1
E
11
1
E
11
0.9
E
10
0.8
E
10
0.8
E
11
0.8
E
10
0.7
E
10
0.9
SE
7
0.6
SSW
10
1.3
ENE
6
1.3
E
6
2.1
E
7
2.2
E
8
2.2
ENE
7
2.4
ENE
8
2.5
ENE
8
2.5
E
8
Wave Graph
Metric surfscale
Energy kJ
145
208
228
295
235
167
125
151
125
94
82
74
98
143
491
566
512
640
787
908
Wind (km/h)
20
NE
15
NE
10
ENE
10
E
5
NNE
5
E
10
SSE
5
S
15
SSW
15
SSW
15
NE
20
NE
25
NNE
30
NNE
25
NNE
30
NNE
25
NNE
30
NNE
35
NE
30
N
Wind State
cross
cross
cross
cross-on
cross-off
glassy
cross-on
cross-on
cross
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
6:26PM1.55m
7:02AM1.47m
6:45PM1.54m
7:47AM1.35m
7:06PM1.51m
8:45AM1.23m
7:27PM1.48m
10:29AM1.12m
7:48PM1.43m
8:08PM1.35m
3:59PM1.32m
10:09PM1.26m
Low Tide
00:45AM0.42m
12:48PM0.68m
1:22AM0.41m
1:09PM0.82m
2:05AM0.43m
1:26PM0.96m
3:00AM0.47m
1:21PM1.08m
4:21AM0.52m
6:15AM0.51m
8:43PM1.26m
cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
thunderstorm
part cloud
thunderstorm
light rain
heavy rain
heavy rain
mod rain
part cloud
rain showers
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:11
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:08
6:07
6:06
6:04
6:02
6:01
6:00
 mm
1
4
3
22
25
6
1
Temp °C
25
24
26
26
24
27
27
26
29
29
26
23
21
20
21
22
22
25
25
22
Feels °C
25
25
27
28
27
29
30
31
31
31
30
23
20
18
20
20
20
21
21
19
  • 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