Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 am 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
26.9° C
0.5° 

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 1 Aug 2026:

  • Best quality surf: Tuesday 4 Aug, 12AM (local time) - 10ft (3.0m), 16s period, SE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 9AM (local time) - 15ft (4.5m), 16s period, SE swell with 10,165 kJ wave energy.
  • Next surfable swell (1★+): Saturday 1 Aug, 9PM (local time) - 2.5ft (0.7m), 16s 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 Saturday (Aug 01) at 9PM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.7m and 6s. 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 4.5m 16s and forecast to arrive on Wednesday (Aug 05) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 1st Aug)2.5ft (0.7m) 16s
Best Surf12AM (Tue 4th Aug)10ft (3.0m) 16s
Most Powerful 9AM (Wed 5th Aug)15ft (4.5m) 16s

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


The Lowdown

G’day, Rusty here. Lookin’ at the next 16 days for Big Ben, and honestly, it’s a bit of a tease. The first week’s a write-off, but then there’s a couple of days that’ll get your heart pumping—if you’ve got the skills for it.

The first real surf we see is on Saturday, August 3rd morning, but it’s a tough read. The swell’s coming up to 7 ft from the SE with a long 16-second period, and the energy’s strong (2776). But the wind’s cross-shore at 16 mph, and the reports say “marginal surf forecast.” It’s not clean, and it’s a bit too big for a beginner spot. Not a day to get excited about.

Then things get wild. The standout is Tuesday, August 6th. Morning brings a solid 13 ft swell from the ESE, 16-second period, and the energy is massive (8144). The wind is cross-offshore at 16 mph, keeping it clean. The reports say it’s “wind and tide favorable, but the swell is predicted to be too big for this break.” At over 8 ft, this is for experts only. The water’s 80°F, which is about average for the time of year, so no worries there. If you’re a seasoned hand, this is the morning to paddle out. Crowds are possible, but honestly, with that size, most will be watching from the beach.

Wednesday, August 7th, is even bigger—15 ft from the SE in the morning, with a ridiculous 16-second period and energy hitting 10688. Again, clean with cross-offshore wind. This is pure, raw power, but it’s strictly for the brave. The afternoon gets a bit messy with cross-shore wind.

The rest of the window is a letdown. From Thursday, August 8th onwards, the swell drops and the wind turns cross-onshore, making things choppy. There’s a gap from the 9th to the 16th where the surf is either too messy, too small, or just plain poor. Sunday, August 18th, has a 5 ft swell from the E, but it’s only 9 seconds and the wind is onshore—pretty much a flat day for the average surfer.

So, to sum it up: the only real window is the first few days of August, with Tuesday and Wednesday mornings being the absolute standouts. Massive, clean, and powerful if you can handle it. Otherwise, it’s a long wait for the next run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 31°C on Sat morning, min 22°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Thu morning. Warm (max 29°C on Thu morning, min 22°C on Tue night). Mainly fresh winds.

Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
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
1
2
2
2
2
2
2
!
!
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2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
6
0.5
SE
16
0.6
ESE
18
1.3
ESE
16
1.5
ESE
15
1.7
ESE
15
2.2
SE
16
2.4
SE
16
3
SE
16
4
ESE
16
3.5
SE
17
4.5
SE
16
4.5
SE
16
4.5
SSE
16
4
SSE
16
4
S
16
4
S
16
3
S
15
3
S
15
2.5
SSW
16
2.4
SSW
15
Wave Graph
Metric surfscale
Energy kJ
43
124
217
892
936
1368
2408
3182
4261
7461
7305
9341
10165
10091
9045
8457
6998
4398
3731
3354
2513
Wind (km/h)
10
SW
15
SW
5
NNW
15
ENE
25
ENE
20
NE
25
NE
25
NE
20
NNE
25
NNE
30
NE
25
NNE
25
NNE
25
NE
15
NNE
20
ENE
20
E
15
E
20
E
20
E
15
E
Wind State
cross
cross
glassy
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
6:57PM1.49m
6:27AM1.49m
7:20PM1.48m
7:11AM1.41m
7:42PM1.47m
7:59AM1.30m
8:06PM1.45m
9:01AM1.18m
8:31PM1.43m
10:40AM1.08m
9:01PM1.40m
9:44PM1.36m
Low Tide
12:24PM0.23m
00:41AM0.69m
12:53PM0.36m
1:18AM0.62m
1:22PM0.51m
1:59AM0.58m
1:49PM0.67m
2:48AM0.56m
2:13PM0.83m
3:50AM0.55m
2:28PM0.99m
5:14AM0.52m
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
rain showers
thunderstorm
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:47
4:48
4:48
4:50
4:50
4:50
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:42
6:40
6:39
6:38
6:37
6:37
 mm
1
2
Temp °C
31
30
27
29
27
24
25
26
23
25
25
23
26
27
25
29
29
26
29
28
26
Feels °C
35
33
31
32
27
24
24
25
22
22
23
22
26
28
27
30
31
29
31
29
29
  • Map Icons:
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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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