Surf Forecasts:
Big Ben surf forecast from 7 Sep 2026:
- Best quality surf: Monday 7 Sep, 3PM (local time) - 11ft (3.5m), 9s period, S swell with cross-shore winds.
- Most powerful swell: Monday 7 Sep, 3PM (local time) - 11ft (3.5m), 9s period, S swell with 2,018 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 3PM (local time) - 11ft (3.5m), 9s period with S 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 (Sep 07) at 3PM. The primary swell is predicted to be 3.5m and 9s period with a secondary swell of 0.8m and 8s. Another secondary swell of 0.6m and 7s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Big Ben in the next 16 days are 3.5m 9s and forecast to arrive on Monday (Sep 07) at 3PM. 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 5s period and expected on Saturday (Sep 12) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 7th Sep) | 11ft (3.5m) 9s |
| Best Surf | 3PM (Mon 7th Sep) | 11ft (3.5m) 9s |
| Most Powerful | 3PM (Mon 7th Sep) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down the next couple of weeks for Big Ben.
We kick things off with a real rough patch. Big Ben is an exposed beach/jetty break, and starting Monday 7th, we get a big southerly swell hitting 3.0m with 30 km/h cross-on wind. The combined energy is massive at 1930, but it's all wind chop and poor conditions. The water temp is 83°F, which is a touch warmer than normal for the season, but you won't care because the surf is junk. Monday afternoon is even bigger but too big for this spot. It stays lumpy and cross-shore with moderate swell right through to Wednesday 9th.
Things clean up a bit on Thursday 10th. The swell drops to 4ft from the south with a light cross-off breeze and clean conditions. The combined energy is 452, so it's a moderate, manageable wave. Still only marginal, but you can at least paddle without getting destroyed.
The only real standout is a tiny window from Friday 11th through Sunday 13th. On Friday 11th afternoon, we get a tiny 2ft easterly swell, but it's glassy with a 14-second period – proper groundswell. Combined energy is only 265, but for a longboard, it’ll be a dream. Saturday 12th afternoon and Sunday 13th morning are also glassy with a 3ft east swell at 13-14 seconds. This is the best of the whole run: small, clean, and it’s an inconsistent spot so you’ll likely have it mostly to yourself.
From Monday 14th onwards, the wind turns poor again, mostly cross or cross-on, killing the small, weak swell. There's a brief moment on Monday 16th morning with glassy conditions and a 2-3ft east swell at 13 seconds, but the wind comes back in the afternoon.
Towards the end, around the 20th to the 22nd of September, a new pulse hits with swells up to 8ft on the 20th and 7ft on the 22nd. But with strong cross-shore winds of 20-25 mph and a combined energy on the 20th morning of 1787, that's too big for a beach break with that wind. That setup looks a lot more fun for a kiteboard than a surfer.
If you're picking your moment, go for Saturday 12th afternoon or Sunday 13th morning. It's not big, but it's clean and surfable.
Rusty, signing off.
Short Range ForecastHeavy rain (total 41mm), heaviest during Mon morning. Warm (max 29°C on Tue morning, min 21°C on Wed night). Winds decreasing (fresh winds from the SSW on Mon afternoon, calm by Wed night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu morning. Warm (max 26°C on Sat afternoon, min 21°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 9 | S 8 | S 8 | ENE 7 | E 14 | E 14 | E 14 | E 14 | ESE 13 | ESE 13 | E 13 | E 13 | E 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1666 | 2018 | 1275 | 642 | 516 | 656 | 647 | 708 | 442 | 224 | 130 | 149 | 144 | 140 | 183 | 180 | 299 | 295 | 272 | 276 | 235 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | glassy | cross-off | cross-off | cross-off | cross | glassy | cross-off | cross | glassy | cross | glassy | on | glassy |
High Tide | 3:49PM1.38m | 1:09AM1.28m | 4:00PM1.44m | 2:25AM1.38m | 4:17PM1.48m | 3:18AM1.48m | 4:35PM1.51m | 4:02AM1.57m | 4:53PM1.53m | 4:42AM1.62m | 5:12PM1.55m | 5:20AM1.63m | 5:30PM1.56m | ||||||||
Low Tide | 8:59PM1.14m | 8:40AM0.37m | 9:23PM1.01m | 9:23AM0.31m | 9:48PM0.87m | 9:59AM0.30m | 10:15PM0.72m | 10:31AM0.32m | 10:42PM0.59m | 11:01AM0.38m | 11:11PM0.48m | 11:29AM0.47m | 11:41PM0.39m | ||||||||
 | |  |  | | | | |  |  |  |  | | | | | | |  | |  | |
 | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — |
 | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — |
mm | 14 | 7 | 5 | — | 3 | 5 | 2 | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 29 | 28 | 27 | 29 | 28 | 23 | 21 | 21 | 21 | 23 | 24 | 22 | 25 | 26 | 24 | 28 | 27 | 26 |
Feels °C | 26 | 27 | 29 | 31 | 30 | 29 | 30 | 30 | 27 | 21 | 21 | 22 | 26 | 28 | 25 | 29 | 31 | 29 | 32 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | E 8 | ENE 8 | S 9 | S 9 | S 9 | E 9 | ESE 10 | ESE 10 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | E 14 | E 14 | ESE 13 | ESE 13 | E 13 | E 13 | E 12 |
| kJ | 219 | 96 | 1021 | 642 | 516 | 38 | 55 | 37 | 442 | 224 | 130 | 82 | 74 | 55 | 183 | 180 | 299 | 295 | 272 | 276 | 235 |
Swell 2 Height (m) Direction Period (s) | NE 8 | E 7 | E 8 | E 9 | E 9 | SE 10 | E 17 | E 16 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | S 7 | ESE 9 | SSW 7 | SSW 7 | SE 8 | SE 8 | SE 8 |
| kJ | 25 | 40 | 115 | 76 | 56 | 25 | 52 | 46 | 43 | 68 | 67 | 100 | 144 | 140 | 40 | 32 | 16 | 9 | 55 | 66 | 82 |
Swell 3 Height (m) Direction Period (s) | NE 11 | E 18 | SE 10 | SE 10 | SE 10 | E 18 | NNE 9 | NNE 8 | ESE 11 | SE 11 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 9 | S 7 | NE 6 | NE 6 | SSW 7 | SSW 7 | SSW 11 |
| kJ | 20 | 6 | 27 | 26 | 27 | 25 | 8 | 7 | 11 | 29 | 27 | 16 | 23 | 37 | 32 | 24 | 9 | 9 | 9 | 10 | 24 |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | S 9 | — | SSE 8 | S 9 | S 8 | S 8 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 6 | NE 6 | ENE 6 | NE 6 | — | — | — | — | — |
| kJ | 1666 | 2018 | 1275 | — | 338 | 656 | 647 | 708 | 187 | 131 | 93 | 149 | 58 | 33 | 20 | 21 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 66 | 38 | 38 | 121 | 70 | 177 | 35 | 0 | 22 | 22 | 0 | 6 | 0 | 0 | 6 | 0 | 6 | 0 | 30 | 0 |
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