Surf Forecasts:
Big Ben surf forecast from 10 Jul 2026:
- Best quality surf: Monday 13 Jul, 3AM (local time) - 6ft (1.9m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 11 Jul, 6PM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,479 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 3AM (local time) - 6ft (1.9m), 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 3AM. The primary swell is predicted to be 1.9m and 14s period with a secondary swell of 0.5m and 9s. Another secondary swell of 1.1m 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 6PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 13th Jul) | 6ft (1.9m) 14s |
| Best Surf | 3AM (Mon 13th Jul) | 6ft (1.9m) 14s |
| Most Powerful | 6PM (Sat 11th Jul) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
Alright surfers, Rusty here. Let's have a look at what Big Ben has in store for us over the next couple of weeks. It's a bit of a mixed bag, so we need to be patient.
The water temperature is sitting at 75°, which is about average for this time of year.
We're looking at a long stretch of marginal to poor conditions to kick things off. From Friday the 10th right through to the morning of Monday the 21st, there's nothing really worth paddling out for. The swell is there, but the wind is just making a mess of things. You'll see some decent sized SSW swell around 8ft on the Saturday and Sunday (11th and 12th), but it's coming with a moderate cross or cross-onshore breeze. The energy is strong with a combined reading of around 3500, but it's too chopped up for a good time. The period is a long 16 seconds, which would normally mean great shape, but the wind kills it.
The best bet in this whole forecast window looks like the morning of Thursday the 23rd of July. That's when we finally get a window of clean conditions. We've got a solid 8ft SE groundswell with a good 12-second period rolling in. The wind is a light cross-offshore breeze from the NNE, which should groom it nicely. The combined energy is high at 1928. This one is for the experienced crew though, as 8ft is a bit meaty for beginners. This is the standout, but it's a long way off, so keep your fingers crossed the forecast holds.
The morning of Saturday the 25th of July also looks promising. The swell drops to a more manageable 4ft from the SE, and the forecast shows glassy conditions with a light WSW breeze. The energy is moderate at 495. It'll be a fun, clean option for a wider range of surfers.
Outside of those two windows, the wind is mostly onshore or cross-onshore, and the surf quality just isn't there. There are a few mornings where it's labelled "marginal", which might be worth a look if you're desperate, but don't expect any magic.
Rusty, signing off.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun night. Warm (max 28°C on Mon morning, min 23°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Fri 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | E 10 | ESE 7 | ESE 9 | E 9 | E 9 | E 8 | E 9 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2668 | 3228 | 3375 | 3465 | 2968 | 3272 | 2697 | 1377 | 577 | 352 | 240 | 86 | 119 | 96 | 48 | 132 | 151 | 181 | 147 | 158 | 131 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-off | cross | cross-on | glassy | on | on | on | on | cross-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 | 5:21AM1.51m | |||||||
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 | ||||||||
 |  | |  |  |  | |  |  | | | | |  | | | | | | | | |
 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:37 |
 | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:53 | — | 6:52 |
mm | — | — | — | — | — | — | — | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 27 | 26 | 25 | 26 | 25 | 25 | 28 | 26 | 24 | 27 | 26 | 24 | 28 | 27 | 25 | 28 | 28 | 26 | 28 |
Feels °C | 27 | 27 | 28 | 26 | 26 | 27 | 27 | 27 | 30 | 27 | 27 | 28 | 27 | 27 | 30 | 29 | 29 | 31 | 30 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 13 | SW 13 | SW 12 | SSW 10 | SE 7 | SSE 6 | ESE 7 | ESE 9 | E 9 | E 9 | E 8 | E 9 | E 9 |
| kJ | 2668 | 3228 | 3375 | 3465 | 2968 | 3272 | 2697 | 1377 | 577 | 352 | 240 | 59 | 65 | 44 | 48 | 132 | 151 | 181 | 147 | 158 | 125 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SSW 7 | SSW 7 | SSW 8 | SE 6 | SW 11 | E 10 | S 6 | S 6 | S 7 | S 6 | SSE 6 | SSE 6 | SSW 8 |
| kJ | 128 | 90 | 61 | 58 | 58 | 40 | 40 | 41 | 154 | 105 | 55 | 28 | 119 | 96 | 20 | 20 | 33 | 20 | 12 | 14 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SE 14 | SSE 10 | SE 10 | SE 10 | E 9 | E 9 | E 9 | SW 12 | E 10 | SSW 10 | E 9 | SW 10 | SW 9 | SW 9 | SW 8 | SE 9 | SE 14 |
| kJ | — | — | — | — | 8 | 40 | 24 | 24 | 26 | 26 | 40 | 86 | 49 | 68 | 42 | 44 | 21 | 20 | 11 | 23 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSW 4 | — | — | SW 4 | SW 7 | — | E 6 | — | — | — | — | — | — | — | — | — | SSE 8 |
| kJ | — | — | — | — | 31 | — | — | 34 | 305 | — | 2 | — | — | — | — | — | — | — | — | — | 131 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 30 | 70 | 30 | 81 | 67 | 70 | 66 | 6 | 22 | 0 | 29 | 29 | 0 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.
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