Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 2 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
27.7° C
1.2° 

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 4 Aug 2026:

  • Best quality surf: Wednesday 5 Aug, 9AM (local time) - 13ft (4.0m), 15s period, SE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 9AM (local time) - 13ft (4.0m), 15s period, SE swell with 6,936 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 9AM (local time) - 13ft (4.0m), 15s period with SE 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 (Aug 05) at 9AM. The primary swell is predicted to be 4.0m and 15s period with a secondary swell of 0.4m and 12s. Another secondary swell of 1.4m and 11s 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 15s and forecast to arrive on Wednesday (Aug 05) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Monday (Aug 10) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Wed 5th Aug)13ft (4.0m) 15s
Best Surf 9AM (Wed 5th Aug)13ft (4.0m) 15s
Most Powerful 9AM (Wed 5th Aug)13ft (4.0m) 15s

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


The Lowdown

Alright, let's get down to it. Big Ben is a beach/jetty break that's a bit of a tease – it's inconsistent and exposed, so it doesn't fire all the time. Water temp is running a touch warmer than normal, around 82°F, which is nice.

The start of this run is just too much of a good thing. On Wednesday, August 5th, we've got a massive 13ft SE swell with a 15-second period. The wave energy is strong, at 7482. But it's just too big for this break – it's going to be a mess. The morning wind is cross-off, which would be great, but with that size, it's a no-go. The afternoon goes cross-shore, and it's still way too big. This is for experts only, and even then, it's sketchy.

Thursday and Friday see the swell drop to 8ft and 8ft, but the wind turns onshore or cross-on, and the period drops. The energy is moderate, but the conditions are poor. It's going to be choppy and hard to surf. The forecast says it's marginal, so don't get your hopes up.

The weekend is smaller – Saturday has about 6ft, but it's onshore. Sunday is a bit better with a cross-shore wind, but the swell is a bit messy. It's still marginal, just not great.

Monday the 10th brings a bit more size, up to 7ft, with a fresh cross-off wind. The energy is moderate, but the period drops to 12 seconds. It's cleaner, but the quality is still not there.

Now, here's the one to watch. Tuesday, August 11th. The morning has a solid 12ft ENE swell with a 12-second period, and the energy jumps to 6425. The wind is a fresh cross-off from the NNE, and the forecast is saying wind and tide are favorable. This is the biggest, cleanest, most powerful swell of the whole run. It's at the upper limit for this break, so it's for experienced surfers only. The afternoon drops to 8ft, which is more manageable, but the morning is the standout.

After that, it's a slow fade. From Wednesday the 12th onward, the swell drops below 7ft, and the energy just dies. We're talking weak energy, with readings in the 400s and 600s. There are a few days with a cross-off wind, like the 13th and 15th, but the swell is only around 4ft. It's small and weak. The period drops to 10 seconds, and then down to 9 seconds later in the week. Just not enough push.

There's a slight bump around the 20th, with swell back up to 7ft, but the period is only 10 seconds and the winds are mostly cross-on. It's still only moderate energy, and it's not looking like a classic.

So, bottom line: the only real standout in this entire 16-day window is Tuesday morning, August 11th. That's the one to circle. Big, clean, powerful, and with favorable winds. It's a promise, but it's a long way out, so keep an eye on it. The rest is a lot of small, weak, and onshore slop. Big Ben is inconsistent, and this run shows it. But when it’s good, it’s good, and that Tuesday morning is the one.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Warm (max 28°C on Sat morning, min 23°C on Sat night). Winds increasing (light winds from the E on Sat night, fresh winds from the NNE by Mon morning).

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
!
!
2
2
3
2
1
3
2
2
3
3
2
3
2
2
!
!
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
SE
15
4
SE
14
3
SSE
13
2.5
SSE
12
2.5
S
13
2.5
S
14
2.3
S
14
2.1
S
13
1.7
SSW
13
1.8
SSW
13
1.8
SSW
13
1.8
ESE
13
1.9
ESE
14
1.9
E
13
1.7
SW
16
2.1
E
12
2.3
E
12
3
ENE
11
3.5
ENE
12
2.5
ENE
12
2.3
ENE
10
Wave Graph
Metric surfscale
Energy kJ
6936
5810
2875
2025
2166
2270
2127
1609
998
1057
1057
1057
1449
1283
1394
1266
1519
2261
3471
1689
1103
Wind (km/h)
25
NE
25
ENE
10
NE
15
ENE
15
ESE
10
SE
15
SE
15
ESE
10
E
10
ESE
15
ESE
5
ENE
15
NE
25
ENE
25
NNE
30
NNE
30
NNE
30
NNE
30
NNE
30
NNE
30
N
Wind State
cross-off
cross
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:01AM1.18m
8:31PM1.43m
10:40AM1.08m
9:01PM1.40m
9:44PM1.36m
4:28PM1.26m
11:10PM1.33m
4:23PM1.35m
00:59AM1.34m
4:40PM1.42m
2:16AM1.40m
5:00PM1.47m
Low Tide
2:13PM0.83m
3:50AM0.55m
2:28PM0.99m
5:14AM0.52m
6:50AM0.45m
6:32PM1.25m
8:04AM0.35m
8:47PM1.21m
8:59AM0.25m
9:34PM1.12m
9:42AM0.17m
10:08PM1.02m
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
light rain
part cloud
clear
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:50
4:50
4:52
4:52
4:52
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:37
6:37
6:36
6:35
6:34
6:32
 mm
1
4
Temp °C
27
27
25
29
29
26
28
28
25
28
28
24
28
27
23
24
26
24
28
29
24
Feels °C
27
28
29
31
32
30
30
29
28
30
30
27
28
27
22
22
25
23
26
27
23
  • 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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