Surf Forecasts:
Big Ben surf forecast from 11 Jul 2026:
- Best quality surf: Monday 13 Jul, 12AM (local time) - 5.5ft (1.7m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 12 Jul, 12AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,304 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 12AM (local time) - 5.5ft (1.7m), 14s period with SW 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 12AM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.5m and 9s. Another secondary swell of 0.9m 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 Sunday (Jul 12) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Monday (Jul 13) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 13th Jul) | 5.5ft (1.7m) 14s |
| Best Surf | 12AM (Mon 13th Jul) | 5.5ft (1.7m) 14s |
| Most Powerful | 12AM (Sun 12th Jul) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
Alright folks, Rusty here. Let's get into it. Our only spot on the cards is Big Ben.
The next week and a half has a real mixed bag for Big Ben. We start off with some solid but messy swells, then things clean up beautifully towards the middle of the week before dropping off into a flat spell. The real standout is hiding further out.
Saturday 11th and Sunday 12th July kick things off with a chunky 8ft SSW swell rolling in, carrying a lot of energy. The problem is the wind is blowing cross to cross-onshore all weekend, chopping things up. It’s not going to be pretty, and the reports are calling it marginal at best.
Monday 13th July is when it all comes together. The swell drops a bit to 5ft from the SSW, but look at that wind... dead calm, glassy conditions. This will be the pick of the first week. The water temp is sitting at 75°, which is pretty much bang on average for this time of year, so nothing unusual there. For a break that’s usually inconsistent, this is a moment to pounce. The sets will be long and clean with a 13-second period, and the energy is moderate. It’s not a massive day, but it’ll be fun and uncrowded if you get lucky.
After that, the week goes quiet. The swell drops below 3ft, and the wind goes onshore from Tuesday right through to the following Monday, 20th July. That’s a solid run of poor conditions and small surf, a real blank patch for a few days.
Tuesday 21st July finally brings a little life back, with 4ft clean glass early, but it’s short-lived as the wind swings onshore again by the afternoon.
Now here’s the one to mark on your calendar. Wednesday morning, 22nd July. This is your long-range promise. A solid 7ft swell from the ESE rolls in with some serious grunt and a long 13-second period. The wind goes glassy again. Keep in mind, this is a beach/jetty setup with a longer period swell, so it might jack up and break a little quick, but for experienced surfers, this is an excellent window. For the beginners, 7ft is getting up there, so sit this one out.
After that, the swell slides back down into the 3ft to 5ft range for the end of the month, with NE cross-winds on the 26th bringing a 8ft SE groundswell. That one has power but the winds aren’t perfect, so it’s a promising but uncertain prospect further out.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 29°C on Mon afternoon, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 28°C on Wed morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 14 | SSW 13 | SSW 12 | SW 12 | SSW 11 | SSW 11 | SSW 10 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 8 | ESE 8 | ESE 9 | E 9 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3375 | 3465 | 3304 | 2973 | 2697 | 1203 | 772 | 451 | 141 | 190 | 143 | 88 | 103 | 123 | 158 | 119 | 144 | 154 | 135 | 134 | 202 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross | cross-off | glassy | glassy | glassy | glassy | on | glassy | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 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 | 5:21AM1.51m | 7:10PM1.47m | ||||||||
Low Tide | 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 | 12:18PM0.11m | 00:36AM0.82m | ||||||||
 |  |  | |  |  | |  |  | |  | |  | |  | | | | | | | |
 | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — |
 | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:53 | — | — | 6:52 | — |
mm | — | — | — | — | 1 | 10 | — | 1 | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 24 | 26 | 25 | 25 | 27 | 29 | 25 | 27 | 27 | 24 | 28 | 27 | 25 | 28 | 27 | 26 | 29 | 28 | 26 |
Feels °C | 27 | 26 | 25 | 27 | 27 | 27 | 31 | 33 | 28 | 31 | 31 | 28 | 31 | 29 | 28 | 30 | 29 | 30 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 14 | SSW 13 | SSW 12 | SW 12 | SSW 11 | SSW 11 | SSW 10 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 8 | ESE 8 | ESE 9 | E 9 | SSE 8 |
| kJ | 3375 | 3465 | 3304 | 2973 | 2697 | 1203 | 772 | 451 | 141 | 190 | 143 | 88 | 103 | 123 | 158 | 119 | 144 | 154 | 135 | 119 | 202 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SSW 7 | E 10 | E 10 | E 7 | SSW 10 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SE 9 | SW 8 | E 9 |
| kJ | 61 | 58 | 58 | 57 | 40 | 41 | 26 | 26 | 35 | 48 | 50 | 27 | 63 | 41 | 40 | 20 | 18 | 18 | 38 | 10 | 96 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 14 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 11 | SE 12 | SE 12 | E 10 | SE 10 | SE 9 | SE 10 | SSE 9 | SE 10 | SE 10 | SW 8 | S 8 | WSW 9 |
| kJ | — | — | 8 | 26 | 24 | 25 | 15 | 16 | 68 | 22 | 22 | 30 | 17 | 14 | 15 | 8 | 27 | 15 | 11 | 1 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 4 | SSW 5 | SW 5 | — | — | — | — | — | — | — | — | SSE 5 | SSE 5 | — | — | SSE 8 | — |
| kJ | — | — | — | — | 26 | 44 | 40 | — | — | — | — | — | — | — | — | 5 | 2 | — | — | 134 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 534 | 30 | 70 | 35 | 183 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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