Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 pm 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
27.3° C
1.1° 

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 27 Jul 2026:

  • Best quality surf: Tuesday 4 Aug, 12AM (local time) - 10ft (3.0m), 18s period, SE swell with cross-onshore winds.
  • Most powerful swell: Tuesday 4 Aug, 3AM (local time) - 10ft (3.0m), 18s period, SE swell with 5,488 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 3AM (local time) - 1.5ft (0.5m), 10s 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 (Jul 29) at 3AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.5m and 7s. Another secondary swell of 0.9m 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 3.0m 18s and forecast to arrive on Tuesday (Aug 04) at 3AM. 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+) 3AM (Wed 29th Jul)1.5ft (0.5m) 10s
Best Surf12AM (Tue 4th Aug)10ft (3.0m) 18s
Most Powerful 3AM (Tue 4th Aug)10ft (3.0m) 18s

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


The Lowdown

Alright, let me break down the next 16 days for you. Rusty here, and I'm looking at the charts for Big Ben.

We’ve got a bit of a slow start, but hold on to your board—there’s some serious firepower coming down the line. The first few days are pretty flat and weak, but things start to get interesting around Wednesday, July 29th, with a small window of clean waves. The real standout, though, is the big pulse arriving around Monday, August 3rd, followed by a monster swell that’s only for the brave.

Right now, from Tuesday the 28th, conditions are poor. Small, weak swell around 3ft from the ENE with a short period and cross-onshore winds. The combined wave energy is a measly 177, so don't even bother.

Wednesday, July 29th is where it gets a little interesting. The morning brings a clean 5ft swell from the SW, with glassy conditions. The energy is moderate at 299, and the break is exposed to the swell. The wind is dead calm—glass. This is your best bet for a fun, clean session for the week, though it's an inconsistent spot, so you might have to wait for the sets. The water temp is about average for this time of year, so no surprises there.

The rest of the week through to the weekend is a bit of a write-off. Thursday and Friday are small, weak, and messy. The wind is light, but the swell is tiny, with energy dropping below 100. Saturday is even worse, with a small 1ft swell and poor conditions.

Then, Sunday, August 2nd, we start to see a change. A long-period groundswell from the ESE pushes in at 4ft to 5ft with a period of 14 seconds. The energy jumps to 840, but it’s a bit messy with cross-onshore winds. It’s a marginal session, but it’s a sign of what’s coming.

And here it is. Monday, August 3rd is the pick of the first week. The morning is incredible for experienced surfers: 7ft of ESE swell, a period of 15 seconds, and glassy conditions. The combined energy is a strong 1799. This is a long-period groundswell, so it will have some serious power, and the long gaps between sets will make paddling out easier. The break is a beach/jetty setup, so with this long period, it might bend a bit straight, but with the wind dead off, it’s going to be epic. The afternoon gets a bit onshore and messy, but the morning is the window.

Tuesday, August 4th is where things get serious. The swell pumps up to 12ft to 13ft from the SE with an 18-second period. The energy is enormous—over 7,000 and then 10,000. This is too big for most, and the forecast says it's too big for this break. The wind is cross-shore at 12-16 mph, creating a cross-chop. This is expert-only, and honestly, with the size and the chop, it might be more interesting for the kite surfers than paddle surfers.

The rest of the second week is a washout for quality surfing. A massive 20ft+ swell from the SE on August 5th and 6th is way too big, with strong onshore winds and risk of thunderstorms. The energy is over 20,000. Not a day to be in the water. Things settle down from August 8th, but the swell is still big (7ft to 10ft) and the wind is onshore, making it a mess. The wind finally eases by August 10th, but the swell drops to a more manageable 5ft to 6ft, though the wind is still cross-shore or cross-onshore, so the quality is marginal at best.

The standout: Without a doubt, Monday morning, August 3rd at Big Ben. That 7ft, 15-second groundswell from the ESE with glassy conditions is the one to circle. If you're an experienced surfer, that's your session.

The one to watch: The morning of Wednesday, July 29th is a smaller, cleaner option for everyone else, with 5ft and glass.

The rest of the run is either too small, too big, or too windy. The long-range stuff has a lot of energy, but it’s mostly blown out.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Wed night. Warm (max 30°C on Wed afternoon, min 23°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 29°C on Fri afternoon, min 24°C on Fri night). Wind will be generally light.

Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
2
1
0
0
0
0
1
1
0
0
0
2
2
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SE
10
0.9
ENE
8
0.8
ENE
7
0.5
SE
10
1.5
SW
6
0.9
SSW
7
0.9
SSW
7
0.7
SSW
7
0.6
ENE
7
0.6
S
7
0.5
NE
8
0.4
SE
9
0.5
NE
7
0.3
ESE
11
0.4
SE
14
0.7
SE
16
1.3
ESE
14
1.4
ESE
14
1.6
ESE
16
Wave Graph
Metric surfscale
Energy kJ
64
88
62
48
172
70
86
43
43
35
29
27
27
23
59
245
742
763
1225
Wind (km/h)
10
NE
10
E
15
S
20
WSW
5
S
5
S
20
NE
10
ENE
10
S
10
S
0
E
5
E
10
NE
5
E
10
SSE
5
SSE
10
S
15
S
10
S
Wind State
cross
cross-on
cross-on
cross-off
glassy
glassy
cross
cross
cross-on
cross-on
glassy
glassy
cross
cross-on
on
glassy
cross-on
cross-on
cross-on
High Tide
2:41AM1.44m
5:26PM1.48m
3:33AM1.49m
5:50PM1.50m
4:19AM1.53m
6:13PM1.51m
5:03AM1.55m
6:35PM1.50m
5:45AM1.54m
6:57PM1.49m
6:27AM1.49m
7:20PM1.48m
Low Tide
9:52PM1.11m
10:08AM0.09m
10:29PM1.03m
10:45AM0.06m
11:02PM0.94m
11:20AM0.08m
11:34PM0.85m
11:52AM0.14m
00:07AM0.76m
12:24PM0.23m
00:41AM0.69m
12:53PM0.36m
1:18AM0.62m
part cloud
part cloud
part cloud
thunderstorm
clear
clear
thunderstorm
part cloud
part cloud
part cloud
cloud
thunderstorm
rain showers
part cloud
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:43
4:45
4:46
4:47
4:47
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:45
6:45
6:45
6:44
6:43
6:42
 mm
1
4
1
1
Temp °C
23
27
27
27
29
30
26
27
27
26
27
29
24
28
28
26
29
29
26
Feels °C
25
30
29
29
32
34
30
31
30
30
33
34
27
31
31
30
33
32
30
  • 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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