Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 pm 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
27.7° C
1.3° 

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 3 Aug 2026:

  • Best quality surf: Tuesday 4 Aug, 12AM (local time) - 10ft (3.0m), 16s period, SE swell with cross-shore winds.
  • Most powerful swell: Wednesday 5 Aug, 9AM (local time) - 15ft (4.5m), 16s period, SE swell with 9,444 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 12AM (local time) - 10ft (3.0m), 16s period with SE 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 (Aug 04) at 12AM. The primary swell is predicted to be 3.0m and 16s period with a secondary swell of 0.5m and 14s. Another secondary swell of 1.6m and 7s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Big Ben in the next 16 days are 4.5m 16s and forecast to arrive on Wednesday (Aug 05) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Monday (Aug 10) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 4th Aug)10ft (3.0m) 16s
Best Surf12AM (Tue 4th Aug)10ft (3.0m) 16s
Most Powerful 9AM (Wed 5th Aug)15ft (4.5m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it.

Well, the next 16 days are a bit of a mixed bag for Big Ben. If you’re a beginner or just looking for mellow waves, you’re going to have to be patient. The swell is going to be a major player here, and for the most part, it’s just too damn big for this spot. The first real window of opportunity doesn’t really open up until the middle of the second week, but we’ll get to that.

Now, let’s start with what’s coming. The big news is a very long period groundswell from the SE that arrives on the 3rd of August. The water is sitting at a warm 82°F, which is a touch warmer than normal for this time of year. But here’s the rub: that Monday afternoon, with a 8ft swell from the SE and a period of 17 seconds, the combined energy is massive at 3883. That’s a lot of power. The wind is a moderate cross-shore from the NE, so it’s not clean, but the real problem is the size. By Tuesday morning, the swell jumps to 12ft, and the guidance flags it as too big for this break. The same goes for Wednesday when we see a 15ft swell from the SSE. The wind is cleaner on Wednesday morning with a cross-offshore breeze, but 15ft is expert territory and way too much for a beginner-friendly spot like this. The energy readings are off the charts, hitting 9444 on Wednesday morning. This setup honestly looks more interesting for kite surfing than paddle surfing.

The swell hangs around 8ft to 10ft through Thursday and Friday, but the wind swings cross-onshore, bringing chop and making things messy. The combined energy is still strong, reading between 3308 and 4595. By the weekend of the 8th and 9th, the swell drops to around 7ft, but the wind is still cross-onshore, and the surf is described as marginal. The period is still a very long 15 to 16 seconds, which is good for shape but can make the waves a bit too straight at this beach/jetty setup.

Now, there’s a glimmer on the 10th of August. We get a 8ft to 10ft easterly swell, and the wind finally turns nice and clean, cross-offshore from the NNE. The energy is still very strong at 5920, but the comment says it’s too big for this break. So that’s a tease.

The real standout, and the only one I’d really call a winner, is the late window on the 15th of August. That Saturday afternoon, we see a 15ft swell from the east with a period of 11 seconds. The combined energy is a massive 7514. But again, the guidance flags it as too big. For a beginner spot, this is a no-go.

The truth is, there isn’t a single day in this 16-day window where Big Ben is going to be surfable for the average punter. The swell is consistently too powerful, and when it’s not, the wind is onshore. It’s a frustrating run, but in this area, blank stretches like this happen. The forecasts can change, but as it stands, you’re better off finding a protected reef or a point break if you can. Otherwise, it’s a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Thu morning, min 22°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 20mm), heaviest during Fri morning. Warm (max 29°C on Fri morning, min 24°C on Sat night). Wind will be generally light.

Mon
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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
!
2
2
1
1
2
4
2
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SE
17
3
SE
16
3.5
SE
16
3.5
SE
16
4
SE
16
4.5
SE
16
4.5
SSE
15
3.5
SSE
14
3
S
14
3
S
14
3
S
14
2.5
S
15
2.4
SSW
15
2.2
SSW
14
2.2
SSW
15
2.1
SSW
15
2.2
SSW
15
2.1
SW
15
2.1
SW
16
1.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
3610
4498
5567
5953
8489
9444
8487
4834
3917
4142
3204
3052
2651
1983
2090
1980
2155
1910
2107
1875
Wind (km/h)
25
NE
25
NE
25
NE
30
NE
25
NNE
25
NNE
25
NE
15
NNE
15
E
20
ESE
15
ENE
20
ESE
20
ESE
15
ESE
20
ESE
15
E
10
ENE
20
E
20
ENE
25
NNE
Wind State
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross
cross-on
cross
cross-off
High Tide
7:42PM1.47m
7:59AM1.30m
8:06PM1.45m
9:01AM1.18m
8:31PM1.43m
10:40AM1.08m
9:01PM1.40m
9:44PM1.36m
4:28PM1.26m
11:10PM1.33m
4:23PM1.35m
00:59AM1.34m
Low Tide
1:59AM0.58m
1:49PM0.67m
2:48AM0.56m
2:13PM0.83m
3:50AM0.55m
2:28PM0.99m
5:14AM0.52m
6:50AM0.45m
6:32PM1.25m
8:04AM0.35m
8:47PM1.21m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
rain showers
rain showers
thunderstorm
thunderstorm
clear
clear
rain showers
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:50
4:50
4:50
4:52
4:52
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:39
6:38
6:37
6:37
6:36
6:35
 mm
3
6
4
5
1
1
Temp °C
26
23
25
25
23
27
27
25
29
28
26
29
29
26
28
28
25
28
27
24
Feels °C
25
21
22
23
22
28
28
28
31
29
28
31
31
29
30
30
28
28
26
24
  • 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