Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
25.4° C
0.0° 

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 17 Jul 2026:

  • Best quality surf: Tuesday 21 Jul, 9AM (local time) - 4ft (1.2m), 11s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 21 Jul, 12AM (local time) - 4ft (1.2m), 11s period, E swell with 338 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 21 Jul, 9AM (local time) - 4ft (1.2m), 11s 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 Tuesday (Jul 21) at 9AM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.3m and 8s. Another secondary swell of 0.7m and 4s 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 1.2m 11s and forecast to arrive on Tuesday (Jul 21) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 21st Jul)4ft (1.2m) 11s
Best Surf 9AM (Tue 21st Jul)4ft (1.2m) 11s
Most Powerful12AM (Tue 21st Jul)4ft (1.2m) 11s

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


The Lowdown

Hey folks, Rusty here. Gotta be straight with you from the start – the next two weeks at Big Ben (beach/jetty) are a mixed bag, and we're looking at a long wait for anything decent. This spot is exposed to the swell but it's inconsistent, so we need everything to line up perfectly. Let's break it down.

Right now, we're in a dry spell. The first week is pretty grim. From Saturday, 18 July to Monday, 27 July, it's mostly small, weak, and messy. The combined energy is low, mostly between 110 and 369 (weak to moderate), with swell heights barely scraping 3 feet. Winds are all over the place – cross, cross-on, and onshore – making for choppy, poor surf conditions. The water temp is a pretty standard 78°F for this time of year, so nothing unusual there.

The first real glimmer of hope is on Tuesday, 21 July morning. We get a clean window with a cross-offshore breeze from the SW, and a 4 feet easterly swell at 11 seconds. That's a decent groundswell for a beach break, combined energy hits 369 (moderate). It's a beginner-friendly size, but with the inconsistent nature of the spot, don't expect a non-stop party. The afternoon deteriorates though, so be on it early.

Then we hit another dry spell from Wednesday, 22 July right through to Sunday, 27 July. The swell drops to 1 feet – 2 feet, and the winds are rubbish. There's a tricky period on 25 July with a 1 feet, 16-second SE swell, but the combined energy is only 176 and the wind is onshore. It's a tease.

Now, the standout. The real action is in the second week, but it's a double-edged sword. On Monday, 27 July, the swell jumps to 7 feet from the SSE at 15 seconds. The combined energy skyrockets to 2435 (strong). This is a proper groundswell. The wind is cross-shore, so it's going to be a bit lumpy and the size is pushing into expert territory. But then… Tuesday, 28 July, things get nuts. The swell hits 13 feet from the SSE, period 14 seconds, and the combined energy is a massive 5280 (very strong). The winds are light cross-onshore, but the forecast flags it: the swell is predicted to be too big for this break. This is the kind of day where the rip bowls are going to be moving, and it's only for the most experienced. The same goes for Wednesday, 29 July (15 feet, SSE, 15 sec, 9627 energy) and Thursday, 30 July (16 feet, S, 13 sec, 15644 energy).

Bottom line: The best surf is on Tuesday, 21 July morning for a clean, fun-sized wave. The massive swell from 28 July onwards is a spectacle for experts only, with serious power and size. For everyone else, it's a waiting game. The crowds are a possibility here, so keep that in mind.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Mon morning, min 24°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

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

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
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
1
0
0
1
0
0
0
2
0
1
0
0
0
0
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
E
9
1
E
9
1.1
E
10
1
E
9
1
E
9
0.9
E
9
0.9
E
9
0.9
E
8
1.2
E
11
1.2
E
11
1.1
E
10
1
E
10
0.9
ENE
10
0.9
ENE
10
0.8
E
10
0.7
E
10
0.7
E
9
0.6
E
9
0.6
E
9
0.5
SE
11
0.6
E
9
Wave Graph
Metric surfscale
Energy kJ
129
166
220
166
162
129
120
115
338
326
260
208
167
163
125
90
85
60
59
57
56
Wind (km/h)
10
SE
15
SSE
10
S
10
S
15
S
10
SSW
15
SW
20
SSW
15
SW
15
SW
20
SW
15
SW
10
SW
15
SW
10
SW
20
NE
15
ENE
10
NNE
10
NE
10
ESE
5
NE
Wind State
on
on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
cross
cross
cross-on
cross-off
cross
cross-on
glassy
High Tide
7:35PM1.45m
6:50AM1.40m
8:00PM1.43m
7:39AM1.31m
8:26PM1.41m
8:37AM1.20m
8:54PM1.39m
9:58AM1.10m
9:25PM1.38m
12:17PM1.05m
10:06PM1.36m
3:23PM1.15m
11:05PM1.35m
Low Tide
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
5:01AM0.55m
3:28PM1.01m
6:26AM0.47m
4:56PM1.15m
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
part cloud
clear
part cloud
part cloud
thunderstorm
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:37
4:37
4:39
4:39
4:39
4:41
4:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
6:51
6:50
6:50
6:49
 mm
2
1
Temp °C
27
27
25
28
28
26
29
29
26
31
30
27
31
30
27
28
28
26
28
28
26
Feels °C
30
29
28
30
30
30
31
31
29
34
32
31
35
33
31
31
31
31
32
32
31
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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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