Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 am 28 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 28 Jul 2026:

  • Best quality surf: Monday 3 Aug, 6PM (local time) - 10ft (3.0m), 17s period, SE swell with cross-onshore winds.
  • Most powerful swell: Tuesday 4 Aug, 3PM (local time) - 18ft (5.5m), 18s period, SE swell with 21,656 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 3AM (local time) - 3.5ft (1.0m), 6s period with SSW 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 1.0m and 6s period with a secondary swell of 0.5m and 10s. Another secondary swell of 0.5m and 7s 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 5.5m 18s and forecast to arrive on Tuesday (Aug 04) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 29th Jul)3.5ft (1.0m) 6s
Best Surf 6PM (Mon 3rd Aug)10ft (3.0m) 17s
Most Powerful 3PM (Tue 4th Aug)18ft (5.5m) 18s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it.

We’re looking at a pretty up-and-down 16 days. The first few days are small, but there’s some serious size coming later. The water is sitting at a toasty 81°, which is a touch warmer than normal for this time of year – feels like a bath.

The only spot on the radar is Big Ben (beach/jetty). It’s an exposed spot, so it catches just about everything, but it’s inconsistent, meaning you’ve gotta be patient.

Tuesday, July 28th kicks off with a glassy 3ft from the ENE, but the energy is weak (170). It’s surfable, but nothing to write home about. The afternoon goes flat with a poor 2ft and cross-onshore wind.

Wednesday, July 29th morning is the first real standout. Glassy conditions with a 6ft SW swell. The period is short at 6 seconds, so it’ll be a bit lumpy, but the energy is solid (388) and with clean glass, it’s your best early bet. The afternoon drops to 3ft and goes cross-offshore.

Thursday, July 30th is tiny again – 2ft and 2ft – glassy but weak energy (79 and 67). Not worth paddling out.

Friday, July 31st through Saturday, August 1st is a write-off. Dropping below 2ft with cross or cross-onshore winds. Just a flat spell.

Sunday, August 2nd we see a change. The morning brings a 4ft, 16-second groundswell from the ESE. The energy jumps to 686 (moderate). The period is long, so it will be walled up at a beach break, but the wind is onshore, so it’s tricky. The afternoon gets a 5ft, 15-second swell with even more energy (1154), but same onshore wind issue.

Monday, August 3rd the swell builds. 8ft in the morning, 8ft in the afternoon from the ESE. The period is very long (16-17 seconds), with massive energy (2896-4587). This is getting into powerful territory, but with onshore wind, it’s going to be a messy, powerful close-out. Not for the faint-hearted.

Tuesday, August 4th is the big one. We’re looking at a 15ft SE swell with an 18-second period in the morning. The energy is off the charts (12208). The wind is cross-shore, so it’s not terrible, but honestly, 15ft at a beach/jetty? That’s only for experts. The afternoon hits 18ft with cross-onshore wind. This is more of a show than a surf.

Wednesday, August 5th is even bigger. 28ft SE swell with a 17-second period and energy over 38000. That’s a massive, dangerous swell. With cross-onshore wind, this is a full-on ocean event. If you’re not a top-tier charger, stay on the beach.

Thursday, August 6th through Friday, August 7th the swell drops but it’s messy. 10ft to 18ft with moderate cross-onshore winds and poor conditions. Not recommended.

Saturday, August 8th drops to 5-5ft from the south, but period is short (8 seconds) and the wind is onshore. Still poor.

Sunday, August 9th picks up a bit. 5ft from the east, 13-second period (1135 energy). The wind is cross-shore, so it’s clean-ish. This is a possible session, but the afternoon gets a strong breeze.

Monday, August 10th and Tuesday, August 11th are back to small, messy, or windy. Not worth it.

Wednesday, August 12th gives a last gasp: 5ft from the east, 11-second period (742 energy) with a cross-offshore wind. Clean conditions. If you’re desperate, that morning might be a fun little session.

The best on offer: The glassy 6ft on Wednesday, July 29th morning is the pick of the first week. For the big stuff, Sunday, August 9th morning with the 5ft east swell and cross-shore wind is the only decent window in the second week.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Tue night. Warm (max 30°C on Wed afternoon, min 24°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 30°C on Fri morning, min 25°C on Fri night). Wind will be generally light.

Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
2
1
0
1
1
1
0
0
0
0
0
0
2
2
3
3
3
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ENE
8
0.6
SE
10
0.5
SE
10
1.7
SW
6
1
SSW
7
0.9
SSW
7
0.7
SSW
7
0.4
SE
10
0.4
NE
8
0.6
SSW
6
0.4
ENE
8
0.3
E
11
0.4
SE
15
0.4
ESE
14
0.4
ESE
13
1.1
ESE
16
1.6
SE
15
1.7
ESE
15
2.3
ESE
16
2.5
ESE
17
3.5
SE
17
Wave Graph
Metric surfscale
Energy kJ
81
63
48
239
102
88
42
29
15
30
23
21
55
75
62
589
1074
1314
2765
4476
6388
Wind (km/h)
5
E
15
SSW
15
WSW
5
SSW
10
WSW
5
NE
5
ENE
5
S
5
SE
10
NE
10
E
5
ENE
10
E
15
ESE
10
ESE
10
SE
10
SSE
5
SSE
5
ESE
15
ESE
10
NE
Wind State
glassy
cross-on
cross-off
glassy
cross-off
cross
glassy
glassy
glassy
cross
cross-on
cross
cross-on
cross-on
on
on
on
cross-on
on
on
cross
High Tide
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
7:11AM1.41m
7:42PM1.47m
Low Tide
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
1:22PM0.51m
1:59AM0.58m
part cloud
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
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
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:44
6:43
6:42
6:40
 mm
2
1
1
Temp °C
27
27
26
29
30
27
29
28
26
30
29
26
28
28
26
28
29
26
28
28
25
Feels °C
30
29
28
33
33
31
33
32
30
33
32
30
31
30
30
31
32
30
32
30
28
  • 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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