Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 pm 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
25.4° C
0.2° 

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 20 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, 6AM (local time) - 4ft (1.2m), 11s period, ENE swell with 343 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 0.7m 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 1.2m 11s and forecast to arrive on Tuesday (Jul 21) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Jul 23) at 9AM.

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 Powerful 6AM (Tue 21st Jul)4ft (1.2m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s break down what’s cooking at Big Ben for the next couple of weeks.

Honestly, it’s a bit of a slow burner to start. We’ve got a stretch of mostly poor conditions, with a lot of cross-shore and onshore wind. The swell energy is bouncing around, but nothing’s really clicking for a clean, solid session.

The first chance to get wet is on Wednesday morning, July 22nd. The wind is light and cross-offshore, which will clean up the 3ft swell from the east, with a 10-second period. The combined energy is moderate at 243. It’s not big, but it’s clean. Water temp is about average for the season.

Thursday morning, July 23rd, is a real gem. The swell drops to 3ft from the east, still with a 10-second period, but the wind goes glassy. That’s a huge plus. The combined energy is weak at 163, but for a beginner-friendly spot, those glassy conditions will make for some fun, easy waves. It’s a beach and jetty setup, so the longer period isn’t a big deal.

Then we hit a long dry spell. From Friday, July 24th, through early next week, conditions are poor. There are some pulses of longer period swell from the southeast, but the wind is onshore or cross-onshore, and the waves are small and messy. Not worth a paddle.

Things start to ramp up around Tuesday, July 28th, but it’s still messy. Then on Wednesday, July 29th, the swell really kicks in. We’re looking at a 7ft swell from the SSW with a 12-second period, and the combined energy jumps to 1471. That’s strong. But the wind is a strong cross-shore at 16 mph, making it lumpy. It’s a marginal call, and this size is already too big for beginners.

The standout for the whole run is Saturday morning, August 1st. The finder says the wind and tide are favorable, but the swell is predicted to be too big for this break. We’re talking a 10ft swell from the SSE with a 10-second period, and a massive combined energy of 1685. That’s a ton of water. The wind is light and cross-shore, so it would be clean, but this is expert-only territory. For a beginner spot like Big Ben, it’s just too much. After that, it backs off quickly through Sunday and into the next week, with smaller, onshore-affected waves.

So, the best bets: the clean, glassy morning on Thursday, July 23rd for small, fun waves, and the big, powerful – but expert-only – swell on Saturday, August 1st. The rest is a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 31°C on Tue morning, min 26°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Sat night. Warm (max 28°C on Fri morning, min 22°C on Sat night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
1
2
0
1
1
0
1
0
0
2
0
0
1
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
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
E
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
0.5
SE
10
0.6
SE
11
0.4
SE
14
0.6
SE
10
Wave Graph
Metric surfscale
Energy kJ
410
337
276
204
208
167
163
120
85
83
59
57
91
90
87
53
76
74
69
Wind (km/h)
15
SW
15
SW
20
SW
10
SW
5
WSW
20
SW
15
SW
5
WSW
10
S
5
NE
10
ENE
10
ESE
5
ENE
10
ENE
15
ENE
10
NNE
5
ENE
0
SE
5
NE
Wind State
cross
cross
cross
cross
cross-off
cross
cross
glassy
cross-on
glassy
cross
cross-on
glassy
cross-on
cross-on
cross-off
cross-on
glassy
cross
High Tide
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
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
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
rain showers
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
1
3
1
5
1
2
Temp °C
26
31
30
26
31
30
27
31
31
27
28
27
26
27
26
24
25
26
24
Feels °C
30
34
32
31
35
33
32
36
37
34
32
32
31
31
28
27
29
31
28
  • 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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