Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
25.2° C
0.1° 

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 15 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 3AM (local time) - 5ft (1.5m), 11s period, E swell with glassy winds.
  • Most powerful swell: Tuesday 21 Jul, 12AM (local time) - 6ft (1.8m), 12s period, E swell with 926 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 9PM (local time) - 4ft (1.2m), 9s 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 Sunday (Jul 19) at 9PM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big Ben in the next 16 days are 1.8m 12s and forecast to arrive on Tuesday (Jul 21) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 8s period and expected on Friday (Jul 17) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 19th Jul)4ft (1.2m) 9s
Best Surf 3AM (Wed 22nd Jul)5ft (1.5m) 11s
Most Powerful12AM (Tue 21st Jul)6ft (1.8m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Big Ben over the next couple of weeks.

To be straight with you, the start of this period is a bit of a struggle. The opening days – Thursday the 16th through Saturday the 18th – are a write-off for a proper paddle. We’ve got weak, short-period lumps coming in from the east, around 3ft to 3ft, but the wind is all wrong, mostly onshore or cross-on, and the combined energy is weak (181 to 211). The waves are just a messy, choppy jumble. Not worth wetting a board.

We finally get a sniff of something borderline on Sunday the 19th. The swell nudges up to 4ft, still from the east, but the wind lightens up in the morning to nearly nothing. The combined energy climbs to a moderate 280, and the forecast calls it “marginal.” It’s not great, but it’s the first time the conditions might actually be ridable for a beginner looking for a gentle, knee-high crumble. Monday the 20th is similar in the morning with a light cross-shore, but the energy is still just moderate.

The first real standout, and the best chance of the first week, arrives on Tuesday the 21st. The swell jumps to a solid 6ft with a much longer period of 12 seconds – proper groundswell energy. The wind early is a light cross-shore from the SSW, which should keep the faces reasonably clean. The combined energy hits a strong 825. This is a legit east swell, and for a beginner-friendly spot like the beach/jetty setup at Big Ben, it’s going to offer some fun, punchy lines. The only thing to watch is the size: at 6ft, it’s pushing into the zone where beginners might find it a bit full-on. The crowds are listed as “sometimes,” so you might have a few others out, but it’s the best bet of the early window.

After that, the swell drops back for a few days, and the wind gets a bit messy with moderate cross-shore breezes from the NE and ENE. The energy stays moderate (403 to 524). It’s not terrible, but it’s not making any serious waves.

Now, looking further out, the second week has a promising but less certain swell that’s worth keeping an eye on. The forecast shows a significant pulse arriving around Tuesday the 28th. The swell is predicted to be 6ft to 6ft from the SSW, with a very long period of 13 to 14 seconds. The combined energy is through the roof – very strong at 1627 – but the wind is forecast to be a moderate cross-shore from the SW. That’s a lot of power, and with that long period, the waves will be stacking up with plenty of push. Remember, long-period swells like this can break a bit straight at a beach/jetty, so it might be a bit of a close-out machine, but for an experienced surfer, the raw power will be there. For beginners, 6ft with that much energy is definitely a no-go. This is one for the experts only on that Tuesday.

The water temp? It’s about average for this time of year, nothing unusual to report.

So, to wrap it up: the first week’s best is Tuesday the 21st with the 6ft east swell and light winds. The second week’s big event is Tuesday the 28th, with a powerful 6ft SSW groundswell, but it’s for the big dogs. The rest of the time is mostly marginal or poor, but there are a couple of windows to get wet if you’re patient.

Stay stoked.

Rusty

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu night. Warm (max 29°C on Thu morning, min 25°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 30°C on Tue morning, min 24°C on Sat night). Wind will be generally light.

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wed
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
1
1
2
1
0
2
2
1
2
1
0
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)
0.8
E
9
0.9
E
8
0.9
E
8
0.9
E
9
0.9
E
9
1
E
9
0.8
E
8
1
ESE
9
1
E
9
1.2
E
9
1.1
E
10
1.2
E
9
1.2
E
9
1.2
E
9
1.3
E
10
1.8
E
12
1.7
E
12
1.7
E
12
1.5
E
11
1.4
ENE
11
1.3
ENE
11
Wave Graph
Metric surfscale
Energy kJ
102
115
116
120
117
150
91
173
169
230
223
249
229
246
333
926
786
760
555
478
407
Wind (km/h)
20
SSW
10
SSW
15
S
15
SSE
15
SSE
15
SE
10
SE
15
SE
15
SSE
10
SSE
5
SSE
10
SSE
5
SW
10
SSW
15
SSW
10
SW
10
SSW
20
SSW
10
SW
25
NE
20
ENE
Wind State
cross-on
cross
cross-on
cross-on
on
on
on
on
on
cross-on
on
cross-on
glassy
cross
cross-on
cross
cross
cross
cross
cross
cross
High Tide
4:37AM1.51m
6:44PM1.48m
5:21AM1.51m
7:10PM1.47m
6:05AM1.47m
7:35PM1.45m
6:50AM1.40m
8:00PM1.43m
7:39AM1.31m
8:26PM1.41m
8:37AM1.20m
8:54PM1.39m
9:58AM1.10m
Low Tide
11:24PM0.97m
11:44AM0.04m
00:00AM0.89m
12:18PM0.11m
00:36AM0.82m
12:51PM0.22m
1:15AM0.75m
1:23PM0.36m
1:57AM0.70m
1:55PM0.52m
2:46AM0.65m
2:25PM0.68m
3:46AM0.60m
2:55PM0.85m
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:37
4:37
4:37
4:39
4:39
4:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:53
6:52
6:52
6:52
6:52
6:51
6:50
 mm
2
1
2
Temp °C
27
29
29
26
28
28
25
27
27
24
27
27
25
28
28
25
30
29
26
28
28
Feels °C
29
33
33
30
30
30
28
30
29
27
29
29
29
30
29
28
33
31
30
28
29
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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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