Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 am 28 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, 3PM (local time) - 2.5ft (0.7m), 12s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 6PM (local time) - 3.5ft (1.1m), 12s period, E swell with 327 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 3PM (local time) - 2.5ft (0.7m), 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 3PM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.5m and 8s. Another secondary swell of 1.2m 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 1.1m 12s and forecast to arrive on Tuesday (Sep 01) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Sunday (Aug 30) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Fri 28th Aug)2.5ft (0.7m) 12s
Best Surf 3PM (Fri 28th Aug)2.5ft (0.7m) 12s
Most Powerful 6PM (Tue 1st Sep)3.5ft (1.1m) 12s

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


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you – this 16-day stretch for Big Ben is a tough one to get excited about. We’ve got a few tiny windows of hope, but mostly it’s a story of messy wind and just-okay swell. The water’s sitting at 83°, which is a touch warmer than normal for this time of year, so at least you’ll be comfortable while you’re waiting.

The best bits of the whole run? Honestly, they’re pretty modest. Friday the 28th of August afternoon has got some potential. Swell’s only 2ft from the east with a solid 12-second period – that’s a clean, long-period groundswell. The wind’s a gentle westerly at 9 mph, coming cross-off, so it’ll be clean. The combined energy is moderate (314). It’s not big, but for a beginner-friendly beach/jetty setup that’s inconsistent, this is about as good as it gets. Keep in mind, it rarely breaks well here, so grab it.

After that, we hit a real flat spell. Saturday the 29th and Sunday the 30th of August offer tiny 2ft to 2ft east swell, but the wind is mostly cross-on or choppy. Sunday afternoon goes glassy with 2ft east swell, but it’s just too small to really ride. That gap of nothing-worthwhile stretches for several days through the end of August and into early September.

Monday the 31st of August and Tuesday the 1st of September see a bump to 4ft east swell, but the wind is all over the place – cross, onshore – and the conditions are poor. Not worth paddling out.

Then there’s a big gap of poor surf and ordinary conditions until Friday the 4th of September afternoon. That afternoon, we get a glassy, 3ft swell from the south-southwest (241 moderate energy), with a risk of thunderstorms and light east wind. It’s clean, but the swell’s short-period (10 seconds) and small. Still, it’s the next best thing in this outlook.

Now, if you’re an expert, keep your eye on Sunday the 6th and Monday the 7th of September. We’ve got a solid 7ft to 8ft south swell rolling in, with a long 12-14 second period. Combined energy jumps way up to 1556-1631 (strong). But here’s the catch: the wind is a moderate to fresh cross-shore from the south-west, creating a lumpy cross-chop. For a beach/jetty, that long-period south swell might break a bit straight and messy with that wind. It’s marginal, and honestly, this set-up looks more interesting for kite surfing than paddle surfing unless you’re really keen on a bumpy, powerful wave.

The run continues with messy, windy conditions through most of the second week. The one standout in that second week is Friday the 11th of September morning. We get glassy conditions with a light west-northwest wind at 3 mph, and 5ft southerly swell (485 moderate energy, 9-second period). That’s clean and rideable, and the best bet for the end of the outlook. It’s a solid size for experts, and with that glass, it’ll be smooth.

Inconsistent, mostly small or messy, and crowds are sometimes an issue here. Not the best run for Big Ben, but keep an eye on those few clean windows.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Fri afternoon, min 22°C on Sat night). Winds decreasing (fresh winds from the SW on Fri morning, calm by Sun afternoon).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue morning. Warm (max 29°C on Mon morning, min 25°C on Mon night). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
AM
PM
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
0
0
1
1
1
1
0
0
1
1
0
1
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)
0.8
E
12
0.7
E
12
0.7
E
12
0.6
E
12
0.6
E
11
0.5
E
11
0.5
E
11
0.5
E
12
0.5
E
11
0.5
E
11
0.5
E
13
0.7
ESE
12
1.1
E
11
1.1
E
12
1
E
11
0.9
SSW
11
0.9
SSW
11
1
SSW
12
1.1
SSW
11
1
SSW
11
1
SSW
11
Wave Graph
Metric surfscale
Energy kJ
193
136
137
98
91
63
66
67
61
59
89
152
295
322
240
202
206
256
275
226
230
Wind (km/h)
30
SW
15
W
10
NNE
20
ENE
15
ENE
15
NNE
10
NNE
0
NNE
5
SW
10
SW
20
SSW
10
SSW
10
SE
10
SE
10
SE
10
S
20
S
15
SSW
25
SW
25
SSW
15
SW
Wind State
cross-off
cross-off
cross-off
cross-on
cross-on
cross-off
cross-off
glassy
glassy
cross
cross
cross
on
on
on
cross-on
cross-on
cross
cross
cross
cross
High Tide
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
8:45AM1.23m
7:27PM1.48m
Low Tide
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
1:26PM0.96m
3:00AM0.47m
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
rain showers
clear
thunderstorm
clear
clear
clear
clear
clear
clear
<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
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:10
6:09
6:08
6:07
6:06
6:04
 mm
1
1
Temp °C
28
29
26
26
25
23
25
25
24
29
29
26
28
29
26
29
29
27
29
29
26
Feels °C
28
30
30
26
25
23
28
29
28
32
31
30
32
32
30
32
31
30
29
30
29
  • Map Icons:
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  • 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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