Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 am 28 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
25.3°C
0.3° 

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 28 Sep 2026:

  • Best quality surf: Thursday 1 Oct, 6PM (local time) - 13ft (4.0m), 9s period, S swell with cross-onshore winds.
  • Most powerful swell: Thursday 1 Oct, 6PM (local time) - 13ft (4.0m), 9s period, S swell with 2,319 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 29 Sep, 12AM (local time) - 5ft (1.6m), 7s 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 Tuesday (Sep 29) at 12AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 1.4m and 7s. Another secondary swell of 0.3m and 8s 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 4.0m 9s and forecast to arrive on Thursday (Oct 01) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Thursday (Oct 01) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 29th Sep)5ft (1.6m) 7s
Best Surf 6PM (Thu 1st Oct)13ft (4.0m) 9s
Most Powerful 6PM (Thu 1st Oct)13ft (4.0m) 9s

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


Short Range Forecast

Heavy rain (total 36mm), heaviest during Mon afternoon. Warm (max 25°C on Mon afternoon, min 18°C on Tue afternoon). Winds decreasing (fresh winds from the SW on Mon morning, calm by Mon night).

Days 4-6 Weather Summary

Heavy rain (total 66mm), heaviest during Thu night. Warm (max 24°C on Thu afternoon, min 17°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the N by Thu night).

Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
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
0
2
2
1
1
0
1
2
2
3
3
1
2
0
0
0
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)
1.6
SSW
6
1.3
SSW
6
1.6
SSW
7
0.7
SW
13
0.8
SW
14
0.8
SW
12
0.6
SW
11
0.7
SW
11
0.8
SSW
11
1
SSW
11
1.9
S
11
2.4
S
10
1.3
ENE
6
1.2
ENE
8
1.3
ENE
6
1.2
E
7
1.2
ESE
7
1.4
ESE
7
1.5
ESE
11
1.8
ESE
9
1.9
ESE
10
Wave Graph
Metric surfscale
Energy kJ
166
105
250
176
257
214
99
130
149
226
798
1057
101
174
127
131
128
193
480
584
669
Wind (km/h)
30
SW
25
SW
15
WSW
10
NE
20
NNE
15
NE
15
NE
15
NE
15
N
5
ESE
5
S
10
SSW
25
NNE
10
N
20
NE
20
NE
15
ENE
15
NE
20
NNE
20
NE
20
N
Wind State
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
glassy
glassy
cross
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross
cross-off
High Tide
5:15PM1.58m
6:15AM1.56m
5:35PM1.58m
6:56AM1.47m
5:56PM1.57m
7:43AM1.37m
6:16PM1.54m
8:45AM1.26m
6:38PM1.48m
10:39AM1.19m
6:57PM1.40m
6:58PM1.29m
Low Tide
11:27AM0.63m
11:44PM0.26m
11:53AM0.74m
00:17AM0.23m
12:16PM0.86m
00:53AM0.25m
12:38PM0.97m
1:35AM0.31m
12:57PM1.08m
2:26AM0.40m
1:01PM1.17m
3:41AM0.50m
mod rain
thunderstorm
cloud
cloud
light rain
heavy rain
cloud
light rain
cloud
light rain
mod rain
rain showers
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
—
—
5:31
—
—
5:31
—
—
5:33
—
—
5:33
—
—
5:35
—
—
5:35
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:29
—
—
5:27
—
—
5:25
—
—
5:23
—
—
5:22
—
—
5:22
—
—
5:20
—
 mm
7
11
—
—
5
12
—
1
—
2
7
57
—
—
—
—
—
—
—
—
—
Temp °C
24
25
24
23
19
18
19
19
20
22
24
24
21
21
19
20
20
19
21
21
19
Feels °C
23
25
26
25
18
19
18
19
23
25
27
26
19
19
15
16
17
17
18
18
17
  • 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
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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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