Surf Forecasts:
Big Ben surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 12PM (local time) - 10ft (3.0m), 8s period, ENE swell with cross-shore winds.
- Most powerful swell: Tuesday 8 Sep, 9AM (local time) - 13ft (4.0m), 10s period, S swell with 3,266 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 6PM (local time) - 2.5ft (0.7m), 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 Thursday (Sep 03) at 6PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.7m and 4s 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 4.0m 10s and forecast to arrive on Tuesday (Sep 08) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Sep 10) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 3rd Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 12PM (Sun 6th Sep) | 10ft (3.0m) 8s |
| Most Powerful | 9AM (Tue 8th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
The Lowdown
G'day, Rusty here. Let's break down what’s happening at Big Ben.
The next couple of weeks are a mixed bag. Saturday the 5th of September kicks things off with clean but weak surf: a 4ft easterly swell with a short 6 second period, cross-offshore wind at 12 mph. The energy is weak (230). It’s a beach and jetty setup, so with that short period, the waves will be fat and gutless. Crowds are possible.
The real show starts late Monday the 7th. Tuesday the 8th is the big one. We’ve got a solid 13ft southerly groundswell (10 second period) with a cross-shore SSW wind at 19 mph. The energy is massive at (6180). That 13ft is expert-only territory - if you’re not skilled, stay out. The wind will be lumpy, but the power is there.
The best quality surf comes a week later, on Thursday the 17th of September. Glassy conditions, 5ft SSW groundswell, and a glassy WSW wind at just 3 mph. The water temp is about 80°, which is normal for this time of year. The energy is (770) - solid and punchy. This is the cleanest surf of the entire run.
Friday the 18th also offers clean 2ft easterly swell with cross-offshore winds, but it’s much smaller. The rest of the period is mostly onshore and choppy. Mark your calendar for the 8th if you’re a charger, and the 17th for the best session.
Rusty.
Short Range ForecastHeavy rain (total 71mm), heaviest during Fri night. Warm (max 30°C on Thu morning, min 21°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the NNE by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 142mm), heaviest during Sun night. Warm (max 28°C on Tue morning, min 23°C on Sun morning). Mainly strong winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 9 | SSW 10 | SSW 9 | E 6 | E 6 | ENE 7 | ENE 8 | ENE 8 | E 9 | E 8 | E 9 | S 9 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 196 | 94 | 68 | 83 | 75 | 78 | 94 | 243 | 338 | 744 | 1156 | 1421 | 749 | 856 | 2509 | 3266 | 2095 | 1493 | 1263 | 1263 | 1088 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:27PM1.48m | 10:29AM1.12m | 7:48PM1.43m | 8:08PM1.35m | 3:59PM1.32m | 10:09PM1.26m | 3:49PM1.38m | 1:09AM1.28m | 4:00PM1.44m | 2:25AM1.38m | 4:17PM1.48m | ||||||||||
Low Tide | 1:26PM0.96m | 3:00AM0.47m | 1:21PM1.08m | 4:21AM0.52m | 6:15AM0.51m | 8:43PM1.26m | 7:44AM0.44m | 8:59PM1.14m | 8:40AM0.37m | 9:23PM1.01m | 9:23AM0.31m | 9:48PM0.87m | |||||||||
 |  |  |  | |  |  | |  | |  | | | |  | | | | | | | |
 | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — |
 | — | 6:04 | — | — | 6:02 | — | — | 6:01 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — |
mm | 1 | 1 | 1 | — | 3 | 45 | 16 | 4 | — | 2 | 8 | 38 | 25 | 12 | 41 | 2 | 5 | 9 | 1 | 5 | 11 |
Temp °C | 30 | 29 | 23 | 25 | 25 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 27 | 27 | 27 | 28 | 28 | 27 | 29 | 29 | 27 |
Feels °C | 32 | 31 | 24 | 27 | 27 | 24 | 22 | 21 | 21 | 20 | 21 | 21 | 28 | 27 | 25 | 29 | 30 | 29 | 30 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 9 | SSW 10 | SSW 9 | SSW 10 | SSW 9 | SE 8 | SE 8 | SW 9 | SSW 10 | E 8 | E 9 | E 9 | S 10 | S 10 | S 10 | E 9 | E 9 | E 9 |
| kJ | 196 | 94 | 68 | 83 | 75 | 78 | 83 | 47 | 17 | 17 | 21 | 9 | 749 | 678 | 235 | 2811 | 1760 | 1232 | 59 | 39 | 25 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | SSE 6 | SE 6 | E 9 | E 9 | E 9 | ENE 13 | SW 9 | SW 9 | SE 15 | SSW 9 | ESE 11 | — | — | E 9 | E 9 | E 9 | E 17 | E 16 | E 16 |
| kJ | 54 | 38 | 25 | 33 | 60 | 41 | 41 | 17 | 13 | 20 | 8 | 8 | 12 | — | — | 103 | 103 | 55 | 52 | 47 | 44 |
Swell 3 Height (m) Direction Period (s) | SE 10 | ENE 7 | SSW 11 | SSW 10 | SE 6 | SE 7 | SE 9 | E 13 | SSW 8 | ESE 12 | — | — | SSW 9 | NW 5 | — | — | E 19 | E 18 | NE 9 | NNE 8 | ESE 11 |
| kJ | 24 | 15 | 49 | 78 | 32 | 27 | 12 | 3 | 13 | 14 | — | — | 8 | 1 | — | — | 7 | 25 | 3 | 7 | 12 |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | ENE 5 | NE 4 | ENE 4 | ENE 4 | E 6 | E 6 | ENE 7 | ENE 8 | ENE 8 | E 9 | — | E 9 | S 9 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 |
| kJ | — | 16 | 27 | 9 | 7 | 5 | 94 | 243 | 338 | 744 | 1156 | 1421 | — | 856 | 2509 | 3266 | 2095 | 1493 | 1263 | 1263 | 1088 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 114 | 29 | 6 | 22 | 35 | 29 | 595 | 552 | 273 | 513 | 595 | 35 | 38 | 273 | 81 | 121 | 595 | 534 | 534 | 81 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Ben surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest