Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 pm 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
24.6° C
0.4° 

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 12 Jul 2026:

  • Best quality surf: Monday 13 Jul, 3AM (local time) - 5.5ft (1.7m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 17 Jul, 3PM (local time) - 7.5ft (2.3m), 15s period, SE swell with 2,208 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 3AM (local time) - 5.5ft (1.7m), 14s 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 Monday (Jul 13) at 3AM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.4m and 9s. Another secondary swell of 1.1m and 5s 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 2.3m 15s and forecast to arrive on Friday (Jul 17) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 8s period and expected on Saturday (Jul 18) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 13th Jul)5.5ft (1.7m) 14s
Best Surf 3AM (Mon 13th Jul)5.5ft (1.7m) 14s
Most Powerful 3PM (Fri 17th Jul)7.5ft (2.3m) 15s

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


Alright, surfers, Rusty here. Let’s have a look at what’s coming our way at Big Ben. It’s a bit of a mixed bag over the next couple of weeks, but there are some definite windows to get excited about.

The week kicks off with a fair bit of size, but the wind isn’t playing ball. The best bet early on is a short window on Monday the 13th. We’ve got a solid 5ft SSW groundswell rolling in with a long 13-second period, and the wind is going glassy in the morning. That’s about as clean as it gets, and the water temp is sitting at a pretty normal 76°, so no surprises there. The wave energy is pumping at 853 (moderate), so you’ll feel it. Later in the day it drops to 4ft with a cross-offshore breeze, still clean.

Things get messy from Tuesday afternoon through to the end of the week with onshore winds and small, weak swell. The wave energy drops right off into the 100s and 200s, so it’s a bit of a write-off for a few days.

Now, hold on for the second week. Friday the 17th sees a new pulse of long-period SE groundswell, building to 8ft by the afternoon with a 15-second period. That’s a lot of water moving, with wave energy spiking to 2396 (very strong). The catch? It’s cross-onshore, so it’ll be a bit lumpy. This is one for experienced surfers only, as it’s over 8ft. The following Saturday and Sunday stay big, around 7ft to 8ft, but the wind remains a problem, keeping it choppy and marginal.

The next standout, and honestly the best-looking day in the whole outlook, is Wednesday the 22nd. We’ve got a solid 8ft E swell with a 14-second period, and the wave energy is a massive 2113 (very strong). The wind is cross-shore, which is the best we’ve seen for that size. It’s still a big day, so definitely for the experienced crew, but it could be a ripper.

After that, it fades out. There’s a tiny, clean window on the morning of Sunday the 26th with just 1ft of SSE groundswell and a 15-second period, but it’s barely a wave. The week finishes small and marginal.

Overall, the standout is Wednesday the 22nd for the big, powerful swell, but Monday the 13th morning is your best bet for clean, manageable waves. The middle of the week is a bit of a flat spell, so pick your moments.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Wed afternoon, min 24°C on Fri night). Wind will be generally light.

Sun
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
3
3
3
1
2
0
0
0
0
0
0
0
0
2
1
3
2
2
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
SSW
16
1.7
SSW
14
1.6
SSW
13
1.3
SSW
12
1
SSW
12
0.9
SSW
11
0.8
SSW
11
0.7
SSW
10
0.6
SSW
10
0.7
E
9
0.8
E
8
0.8
E
8
0.8
E
9
0.8
E
8
1.3
SE
17
2.3
SE
15
2.3
SE
14
2.1
SE
13
2.2
SE
12
2.3
ESE
11
2.3
ESE
10
Wave Graph
Metric surfscale
Energy kJ
2583
1126
812
517
280
186
143
88
61
76
92
90
97
92
978
2208
1892
1518
1299
1221
1088
Wind (km/h)
15
SSW
15
SW
5
NW
5
WSW
5
E
5
S
10
SSW
10
SSW
15
SSW
20
SSW
20
SSW
25
SSW
20
SSW
15
SSW
15
S
15
SSE
10
SE
10
E
15
ESE
10
ENE
20
ENE
Wind State
cross
cross
glassy
cross-off
cross-on
glassy
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
High Tide
4:50PM1.37m
2:13AM1.42m
5:22PM1.43m
3:05AM1.46m
5:51PM1.47m
3:52AM1.50m
6:18PM1.48m
4:37AM1.51m
6:44PM1.48m
5:21AM1.51m
7:10PM1.47m
6:05AM1.47m
7:35PM1.45m
6:50AM1.40m
Low Tide
9:24PM1.12m
9:51AM0.07m
10:10PM1.09m
10:31AM0.02m
10:48PM1.03m
11:08AM0.01m
11:24PM0.97m
11:44AM0.04m
00:00AM0.89m
12:18PM0.11m
00:36AM0.82m
12:51PM0.22m
1:15AM0.75m
cloud
cloud
cloud
cloud
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:33
4:35
4:35
4:35
4:37
4:37
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:54
6:54
6:53
6:53
6:52
6:52
6:52
 mm
1
Temp °C
26
26
28
28
25
28
28
25
29
28
26
28
28
26
28
28
25
28
27
24
27
Feels °C
29
30
32
32
29
32
31
28
31
30
29
29
30
29
31
30
29
30
29
27
27
  • 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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