Big Ben Surf Break

Lat Long: 35.12° N 140.12° E

Big Ben Surf Forecast and Surf Report

Issued: 8 am 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Ben sea temperature is
23.5° 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 10 Jul 2026:

  • Best quality surf: Monday 13 Jul, 9AM (local time) - 4.5ft (1.4m), 13s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Saturday 11 Jul, 3PM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,465 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 9AM (local time) - 4.5ft (1.4m), 13s 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 Monday (Jul 13) at 9AM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 0.5m and 9s. Another secondary swell of 1.0m 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 2.5m 16s and forecast to arrive on Saturday (Jul 11) 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+) 9AM (Mon 13th Jul)4.5ft (1.4m) 13s
Best Surf 9AM (Mon 13th Jul)4.5ft (1.4m) 13s
Most Powerful 3PM (Sat 11th Jul)8ft (2.5m) 16s

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


G'day, Rusty here, and I've got a look at what's coming up. Let's be straight up – the next few days are gonna be a bit of a wrestle, but there's a light at the end of the tunnel if you're willing to wait.

The swell is coming in strong, but the wind is the main problem for a while. The water is sitting at 74°, which is a bit colder than normal for this time of year, so you might want a slightly thicker spring suit at Big Ben.

We're looking at Friday the 10th, and it's a no-go. The swell is there, with a solid 6 ft of S swell at 14 seconds, and the combined energy is a powerful 2361 (moderate to strong), but that southerly wind is cross-onshore and it's already choppy. The afternoon is even worse with a stronger wind and 8 ft waves. Saturday the 11th is similar story – the swell jumps to 8 ft from the SSW with a 16-second period (that's a long-period groundswell, which will be powerful but can be a bit straight at this beach/jetty setup), and the combined energy is massive at 3435 for the morning, but the cross-shore and cross-onshore winds are putting a chop on everything. Sunday the 12th is a bit of the same, with 8 ft of SSW swell and 3109 energy, but it's still cross-shore and messy.

Monday the 13th morning is where things look a bit better. The swell drops to 5 ft from the SSW at 13 seconds, and the energy is down to 754 (moderate), but the wind turns light and cross-offshore, making it clean. The forecast says "expect very good surf conditions," but honestly, the score is only a 3, so it's a marginal improvement. The afternoon goes back to being poor.

From Tuesday the 14th through to Wednesday the 22nd, it's a pretty flat and messy run. The swell drops to under 3 ft, the energy is weak (under 325), and the wind is mostly onshore or cross-onshore. There are a few days with glassy conditions, like Friday the 17th morning, but the swell is only 3 ft from the ESE with a short 9-second period and a weak energy of 226. It's not worth the trip.

Now, here's the standout. Thursday the 23rd of July. That's the one. The morning has 6 ft of E swell at 11 seconds, which is a nice long-period groundswell, and the combined energy is a solid 1116 (moderate to strong). The best part? The wind is glassy, absolute glass. The forecast says "excellent surf conditions for experienced surfers," and the score is a 4, which is the best we've seen. This is a true standout for the experts – the 6 ft waves are right at the edge of being too big for beginners, and with that long period, it'll have some punch. The afternoon has 7 ft waves, which is getting into the expert-only zone, but the wind is onshore, so stick to the morning.

After that, Friday the 24th and Saturday the 25th are a bit of a letdown. The swell drops, the wind turns cross-shore, and it's back to marginal conditions.

So, to wrap it up: the first week is a write-off for clean surf. The second week has a few small, clean windows, but nothing special. The true standout is the morning of Thursday the 23rd at Big Ben – glassy conditions, solid 6 ft E swell, and a long period. Set the alarm for that one.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Sun night. Warm (max 26°C on Fri morning, min 23°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Mon morning. Warm (max 28°C on Mon morning, min 23°C on Mon night). Wind will be generally light.

Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
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
1
3
3
0
3
3
3
2
3
0
1
1
0
2
0
0
0
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
S
14
2.3
S
16
2.5
SSW
16
2.5
SSW
16
2.5
SSW
16
2.5
SSW
16
2.4
SSW
16
2.2
SSW
16
1.8
SW
14
1.4
SSW
13
1.3
SSW
12
0.8
SW
12
0.8
S
11
0.9
SSW
11
0.9
SSW
10
0.7
ESE
9
0.9
ESE
9
1
ESE
9
1.2
ESE
9
1.3
ESE
9
1.1
ESE
8
Wave Graph
Metric surfscale
Energy kJ
1387
2668
3228
3375
3465
3075
3010
2472
1340
649
496
181
146
206
143
88
119
154
213
245
184
Wind (km/h)
10
S
20
S
15
SSW
15
SSW
20
SSW
20
SW
15
SW
15
SW
20
SW
10
WSW
20
ENE
5
NE
10
ENE
10
ESE
5
S
10
SE
10
SE
5
SSE
10
SSE
15
SE
10
SE
Wind State
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross-off
cross-on
cross
cross
on
glassy
on
on
cross-on
on
on
on
High Tide
3:18PM1.19m
00:16AM1.35m
4:12PM1.29m
1:17AM1.38m
4:50PM1.37m
2:13AM1.42m
5:22PM1.43m
3:05AM1.46m
5:51PM1.47m
3:52AM1.50m
6:18PM1.48m
4:37AM1.51m
6:44PM1.48m
Low Tide
6:54PM1.11m
8:19AM0.26m
8:23PM1.14m
9:08AM0.15m
9:24PM1.12m
9:51AM0.07m
10:10PM1.09m
10:31AM0.02m
10:48PM1.03m
11:08AM0.01m
11:24PM0.97m
11:44AM0.04m
00:00AM0.89m
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
light rain
thunderstorm
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:33
4:33
4:33
4:35
4:35
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:54
6:54
6:54
6:53
6:53
 mm
3
2
1
3
Temp °C
26
25
23
26
26
24
26
25
25
28
27
24
27
27
24
27
27
24
28
28
26
Feels °C
28
26
25
26
26
25
28
27
27
31
28
27
29
29
27
29
29
27
30
30
32
  • 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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