Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
25.4° 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 19 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 6AM (local time) - 3.5ft (1.0m), 10s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 21 Jul, 12AM (local time) - 4.5ft (1.3m), 11s period, E swell with 410 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 6AM (local time) - 3.5ft (1.0m), 10s 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 Wednesday (Jul 22) at 6AM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.2m and 8s. Another secondary swell of 0.6m 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 1.3m 11s 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 3s period and expected on Friday (Jul 24) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 22nd Jul)3.5ft (1.0m) 10s
Best Surf 6AM (Wed 22nd Jul)3.5ft (1.0m) 10s
Most Powerful12AM (Tue 21st Jul)4.5ft (1.3m) 11s

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’ at Big Ben over the next couple of weeks.

Honestly, this is a pretty quiet start. The first week, from Monday the 20th of July right through to Sunday the 26th, is a total write-off. We’re looking at tiny, weak, messy swells and cross-shore winds that never line up. The combined energy of all swells directed here is sitting in the low 100s to 180, which is just weak, listless energy. The water’s about 78°, with a temperature anomaly of -0.3°, so it’s about average for the time of year. There’s nothing to get excited about. You’d be better off staying home.

Now, things start to get interesting around Tuesday the 28th of July. A solid SSW groundswell pushes in with a 14-second period, and the wind swings cross-offshore. The swell hits 7 ft, and the combined energy jumps to 1835, which is a solid, punchy energy. The morning might be a bit lumpy, but that Tuesday afternoon looks clean. This is the first real standout. The swell is approaching 7 ft, so it’s getting into the zone where it’s better for experienced surfers, but the clean conditions with that offshore wind will make it a ripper session. The swell direction is from the SSW, which is a good match for the spot’s optimum SE direction, so it’s going to wrap in nicely.

Wednesday the 29th of July sees even more size, with a 10 ft SW groundswell and a 15-second period, and the energy rockets to 6005. But the wind goes onshore, and the commentary says the swell is predicted to be too big for this break. It’s a beach/jetty setup, and with that kind of power and a short window, it’s going to be raw and messy. This one is for the absolute experts only, and even then, it’s risky.

Thursday the 30th of July is a beauty. The swell drops just a touch to 8 ft from the SW with a 15-second period, and the wind goes *glassy*. That’s a major positive. The combined energy is still a massive 2914, so you’ve got power, but with glassy conditions, it’s going to be clean and hollow. This is another standout morning. The swell is over 8 ft, so this is expert territory, but if you’ve got the skills, this is the session to aim for.

Friday the 31st of July is just insane. We’re looking at 20 ft, 16-second swell from the S, with energy hitting 16561. That’s a monster. The wind is light onshore, but the break is going to be completely shut down by the size. This is not a surf day; it’s a watch-from-the-cliffs day.

The first weekend of August, the 1st and 2nd, is a mess. Strong onshore winds and a drop in quality. The swell is still big but wind-chopped and lumpy. By Monday the 3rd, the energy drops right back to the 200s and 300s, and it’s small, weak, and inconsistent again. The rest of the forecast is a slow fade.

So, the best on offer is clearly the Tuesday afternoon, the 28th of July, for the clean, punchy conditions, and the glassy Thursday morning, the 30th of July, for the power. Both are for experienced surfers. Don’t waste your time on the first week.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 31°C on Tue morning, min 25°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Fri afternoon. Warm (max 29°C on Thu morning, min 23°C on Fri night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
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
1
0
1
1
0
1
0
0
1
0
0
1
1
0
0
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)
0.9
E
9
0.9
E
8
1.3
E
11
1.2
ENE
11
1.1
ENE
10
1
E
10
1
E
10
0.9
ENE
10
0.9
ENE
10
0.8
ENE
10
0.7
E
9
0.7
E
9
0.6
E
9
0.5
SE
11
0.4
SE
16
0.4
SE
16
0.4
SE
16
0.4
SE
15
0.6
SE
11
0.5
SE
11
0.6
SE
11
Wave Graph
Metric surfscale
Energy kJ
120
116
410
337
281
204
208
167
163
125
85
81
59
57
91
90
87
78
73
55
71
Wind (km/h)
10
SW
20
SW
15
SW
10
SW
20
SW
10
SW
10
SW
15
SSW
10
SW
10
ENE
15
ENE
10
NNE
15
ENE
15
ENE
15
NE
10
NNE
15
ENE
10
E
10
SSE
15
S
15
S
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-off
cross
cross
cross
cross-off
cross
cross-on
on
cross-on
cross-on
High Tide
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
4:08PM1.27m
00:24AM1.35m
4:36PM1.36m
1:40AM1.39m
Low Tide
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
7:40AM0.36m
7:43PM1.20m
8:39AM0.25m
9:04PM1.17m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
thunderstorm
mod rain
part cloud
thunderstorm
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:39
4:39
4:39
4:41
4:41
4:41
4:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
6:50
6:49
6:47
6:47
 mm
5
7
4
Temp °C
30
29
26
31
30
26
30
30
27
29
29
26
27
24
24
26
26
24
26
27
26
Feels °C
33
31
30
34
33
30
33
34
32
32
33
30
30
26
28
29
29
27
29
29
29
  • 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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