Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
27.2° 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 28 Jul 2026:

  • Best quality surf: Monday 3 Aug, 6PM (local time) - 10ft (3.0m), 18s period, SE swell with cross-shore winds.
  • Most powerful swell: Wednesday 5 Aug, 3AM (local time) - 18ft (5.5m), 17s period, SE swell with 17,054 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 3AM (local time) - 4.5ft (1.3m), 6s period with SSW 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 Wednesday (Jul 29) at 3AM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.5m and 10s. Another secondary swell of 0.4m 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 5.5m 17s and forecast to arrive on Wednesday (Aug 05) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Aug 05) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 29th Jul)4.5ft (1.3m) 6s
Best Surf 6PM (Mon 3rd Aug)10ft (3.0m) 18s
Most Powerful 3AM (Wed 5th Aug)18ft (5.5m) 17s

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


The Lowdown

Alright folks, Rusty here. Gotta be straight with you – it’s a slow start and a tricky run ahead.

We’re looking at a pretty blank canvas for the next few days. The only spot on the radar is Big Ben, a beach/jetty setup that’s inconsistent and exposed to the swell. It’s also a beginner-friendly zone, but don’t get your hopes up just yet.

The water temp is sitting at 81°, which is about average for this time of year – nothing weird there.

For the first week, from Tuesday the 28th of July right through to Saturday the 2nd of August, it’s mostly small and weak. You’re looking at knee to waist-high junk at best, with a combined energy reading that’s barely a whisper (146 on Tuesday). The wind is messy, mostly cross or cross-onshore, and the period is short, around 6-7 seconds. That’s just mushy, blown-out slop. Not worth paddling out for.

There’s a glimmer on Sunday the 2nd of August. The swell starts to build, with a 5ft swell from the ESE and a period jumping to 14 seconds. That’s a proper groundswell. The combined energy hits 1030, which is moderate. But the wind is onshore, so it’s going to be lumpy. The surf is still only marginal.

Now, here’s the real kicker. From Monday the 3rd of August onwards, the swell goes absolutely mental. We’re talking 10ft on Monday afternoon, 13ft on Tuesday, and peaking at a massive 20ft on Wednesday the 5th of August. The period is a dreamy 17-18 seconds, with combined energy readings in the thousands (over 21,000 on Wednesday). That’s a very strong, long-period groundswell.

But here’s the catch – and it’s a big one. For a beach/jetty break like Big Ben, this is just too much. It’s expert-only territory, and even then, the forecast says it’s too big for this break. A long-period swell like this will jack up and close out on a beach setup. It’s going to be a washing machine. The wind is cross-offshore on Wednesday morning which would be clean, but the size is just insane. This setup honestly looks more interesting for kite surfing than paddle surfing.

The best stand-out, if you’re a seasoned charger, would be the Wednesday morning, August 5th, at Big Ben. You’ve got a 20ft SE swell with a 18-second period, and a cross-offshore wind from the NE. The water will be clean, but you’d better be a damn good swimmer. For the rest of us, it’s a week to watch from the sand.

The energy drops off later in the second week, but it stays messy and cross-onshore, dropping back to 5ft and smaller. The crowds at Big Ben are listed as "sometimes", so on the rare good day, you might have some company.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Warm (max 31°C on Wed afternoon, min 25°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Fri night. Warm (max 27°C on Sun morning, min 23°C on Fri night). Wind will be generally light.

Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
2
1
1
1
1
0
0
0
0
0
1
1
2
2
3
3
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SE
10
1.8
SW
7
1.2
SSW
7
0.9
SW
7
0.8
SSW
7
0.8
SSW
7
0.7
SSW
7
0.8
SSW
7
0.5
SSW
6
0.3
E
11
0.6
ENE
8
0.4
ESE
14
0.7
ESE
16
1.3
ESE
15
1.6
ESE
14
1.8
SE
15
2.4
ESE
17
2.5
SE
18
3.5
SE
18
Wave Graph
Metric surfscale
Energy kJ
58
267
138
69
54
56
40
51
23
21
39
76
223
656
996
1492
3224
4444
6545
Wind (km/h)
15
WSW
5
W
10
WSW
0
NNE
0
SE
10
W
5
SE
10
NE
10
E
15
NE
15
ENE
10
E
10
ENE
10
E
10
E
10
ENE
20
ENE
20
ENE
15
NE
Wind State
cross-off
cross-off
cross-off
glassy
glassy
cross-off
glassy
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
High Tide
3:33AM1.49m
5:50PM1.50m
4:19AM1.53m
6:13PM1.51m
5:03AM1.55m
6:35PM1.50m
5:45AM1.54m
6:57PM1.49m
6:27AM1.49m
7:20PM1.48m
7:11AM1.41m
7:42PM1.47m
Low Tide
10:29PM1.03m
10:45AM0.06m
11:02PM0.94m
11:20AM0.08m
11:34PM0.85m
11:52AM0.14m
00:07AM0.76m
12:24PM0.23m
00:41AM0.69m
12:53PM0.36m
1:18AM0.62m
1:22PM0.51m
1:59AM0.58m
thunderstorm
clear
clear
part cloud
part cloud
clear
clear
part cloud
rain showers
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:45
4:46
4:47
4:47
4:48
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:44
6:43
6:42
6:40
 mm
1
1
4
Temp °C
27
30
31
27
31
29
27
28
28
24
25
26
24
27
27
24
27
27
23
Feels °C
28
33
33
31
34
32
30
31
31
27
27
28
27
29
29
26
26
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)
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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.

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