
Surf Forecasts:
Big Ben surf forecast from 25 Jul 2026:
- Best quality surf: Sunday 26 Jul, 12PM (local time) - 2ft (0.6m), 11s period, SE swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 6AM (local time) - 4ft (1.2m), 8s period, NE swell with 173 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 3AM (local time) - 1.5ft (0.4m), 15s period with SE 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 Sunday (Jul 26) at 3AM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.5m and 11s. Another secondary swell of 0.4m and 8s is also forecast. Another secondary swell of 0.5m 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 1.2m 8s and forecast to arrive on Sunday (Jul 26) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Monday (Jul 27) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 26th Jul) | 1.5ft (0.4m) 15s |
| Best Surf | 12PM (Sun 26th Jul) | 2ft (0.6m) 11s |
| Most Powerful | 6AM (Sun 26th Jul) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s cookin’ at Big Ben over the next couple of weeks.
Honestly, I gotta be straight with you—the first week is a real struggle. From Sunday the 26th of July right through to Saturday the 1st of August, we’re looking at a grim stretch of tiny, weak, messy surf. The swell energy is all over the place, but it's mostly weak to moderate, and the wind is just rubbish—cross-shore, cross-onshore, and a bit of chop. Nothing worth paddling out for. You’ll be fighting the elements for little reward. It’s a real dry spell.
But then, hold onto your board shorts, because things get proper interesting from Monday the 3rd of August. A big groundswell pushes in from the ESE. The swell energy jumps to a massive 1740 (very strong) by Monday morning, and it’s packing 6 ft at a long 16 seconds. That’s proper groundswell energy. The problem is the wind is cross-shore and cross-onshore, so it’s gonna be a bit lumpy, but we’re talking waves now.
The standout moment, without a doubt, is Tuesday the 4th of August. We’ve got a solid 10 ft of ESE swell with a 16-second period, and the combined energy is a whopping 4147 to 4711 (very strong wave energy). The wind is a gentle cross-shore, which is actually workable. BUT—and this is a big but—this is a beginner-friendly beach/jetty break, and 10 ft is way too big for beginners. This is expert territory only. The swell is predicted to be too big for this break, so it’s going to be a wild, heavy, powerful scene. If you’re an experienced local who knows the sandbanks, it could be a proper session, but it’s not for the faint-hearted.
The same goes for Wednesday the 5th through to Saturday the 9th of August. We’re looking at 13 ft to 26 ft of ESE swell with periods of 16-17 seconds. The energy numbers are off the charts—9536, 16327, even 41312 (extremely strong wave energy). This is a full-on, life-threatening swell for this spot. The wind is cross-shore or cross-onshore, but honestly, at those sizes, it’s a big-wave event if you’re brave enough. The break is simply too exposed for most. For the average surfer, it’s a no-go, but for the big-wave chargers with a jetski? This is the play.
By Monday the 10th of August, it finally drops back to a more manageable 4 ft from the E (13 seconds) with onshore wind, but the energy is still 1077 (moderate). It’s a bit of a comedown after the big week.
So, the best on offer? Tuesday the 4th of August is the pick of the litter for experts only, with that powerful 10 ft ESE groundswell. If you’re a beginner, steer clear of the whole second week—it’s way too big. The water temp is about average for the time of year, nothing weird to report.
Stay safe out there.
Rusty.
Short Range ForecastHeavy rain (total 30mm), heaviest during Sat night. Warm (max 28°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Tue night. Warm (max 31°C on Fri morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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) | SE 10 | ENE 8 | ENE 7 | SE 11 | SE 10 | SE 10 | SE 10 | ENE 8 | E 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | SE 10 | SSW 6 | SSW 6 | E 11 |
Wave Graph | |||||||||||||||||||
54 | 107 | 74 | 72 | 70 | 65 | 80 | 145 | 134 | 94 | 70 | 64 | 46 | 67 | 49 | 34 | 57 | 48 | 20 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | on | cross-off | cross-off | cross-on | cross | cross-on | cross | cross | cross-on | cross | glassy |
High Tide | 00:24AM1.35m | 4:36PM1.36m | 1:40AM1.39m | 5:02PM1.43m | 2:41AM1.44m | 5:26PM1.48m | 3:33AM1.49m | 5:50PM1.50m | 4:19AM1.53m | 6:13PM1.51m | 5:03AM1.55m | 6:35PM1.50m | |||||||
Low Tide | 8:39AM0.25m | 9:04PM1.17m | 9:26AM0.15m | 9:52PM1.11m | 10:08AM0.09m | 10:29PM1.03m | 10:45AM0.06m | 11:02PM0.94m | 11:20AM0.08m | 11:34PM0.85m | 11:52AM0.14m | 00:07AM0.76m | |||||||
— | 4:43 | — | — | 4:43 | — | — | 4:43 | — | — | 4:45 | — | — | 4:46 | — | — | 4:47 | — | — | |
6:47 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | |
mm | 15 | 1 | — | 7 | 1 | — | — | 1 | 5 | 11 | — | — | — | — | — | — | — | — | 1 |
Temp °C | 24 | 27 | 28 | 26 | 27 | 27 | 23 | 26 | 27 | 23 | 27 | 26 | 24 | 28 | 28 | 27 | 31 | 30 | 27 |
Feels °C | 27 | 31 | 31 | 29 | 28 | 28 | 25 | 29 | 31 | 25 | 29 | 28 | 27 | 30 | 29 | 32 | 36 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 5 | ENE 8 | ENE 7 | E 7 | E 6 | SE 10 | SE 10 | ENE 8 | E 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | SSW 6 | SSW 6 | SSW 6 |
13 | 107 | 71 | 51 | 40 | 65 | 80 | 85 | 134 | 94 | 70 | 64 | 46 | 67 | 49 | 34 | 57 | 48 | 15 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 11 | SE 11 | SE 11 | SE 10 | SSW 8 | NE 8 | SE 10 | SE 10 | SE 10 | SSW 8 | SE 10 | SE 10 | SSW 7 | SE 10 | SE 10 | NE 7 | SE 9 | ESE 4 |
54 | 73 | 56 | 71 | 67 | 23 | 29 | 63 | 63 | 48 | 26 | 47 | 32 | 18 | 23 | 24 | 13 | 14 | 4 | |
Swell 3 Height (m) Direction Period (s) | ENE 8 | SE 15 | SE 14 | SE 14 | SE 14 | SE 14 | SSW 8 | SSW 9 | SSW 9 | SSW 8 | SE 10 | SW 6 | SSW 8 | SE 10 | SW 6 | ENE 12 | SE 9 | E 11 | E 11 |
22 | 76 | 74 | 72 | 70 | 65 | 39 | 30 | 29 | 40 | 47 | 9 | 24 | 23 | 6 | 14 | 14 | 21 | 20 | |
Wind waves Height (m) Direction Period (s) | NE 4 | — | — | — | — | ENE 6 | — | ENE 8 | — | — | — | — | — | — | S 3 | SSW 4 | — | E 7 | — |
20 | — | — | — | — | 53 | — | 145 | — | — | — | — | — | — | 1 | 18 | — | 25 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 22 | 30 | 30 | 35 | 38 | 6 | 11 | 30 | 0 | 0 | 22 | 6 | 18 | 35 | 39 | 30 | 30 | 22 |
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.










