Surf Forecasts:
Big Ben surf forecast from 14 Jul 2026:
- Best quality surf: Monday 20 Jul, 9PM (local time) - 4.5ft (1.3m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Tuesday 21 Jul, 12AM (local time) - 4.5ft (1.4m), 11s period, ENE swell with 469 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 9PM (local time) - 4.5ft (1.3m), 10s period with ENE 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 20) at 9PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Big Ben in the next 16 days are 1.4m 11s and forecast to arrive on Tuesday (Jul 21) 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 0.4m 8s period and expected on Friday (Jul 17) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 20th Jul) | 4.5ft (1.3m) 10s |
| Best Surf | 9PM (Mon 20th Jul) | 4.5ft (1.3m) 10s |
| Most Powerful | 12AM (Tue 21st Jul) | 4.5ft (1.4m) 11s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer for Big Ben.
Honestly, it’s a bit of a slow start. For the first ten days, from Wednesday the 15th of July right through to the 24th of July, the surf is pretty rough. You’ll see small waves, mostly under 3ft, and the wind is either cross or cross-onshore, making it choppy and messy. A few days have a risk of thunderstorms, too. It’s not really worth paddling out for unless you’re desperate to get wet.
Things start to look a little more promising on Saturday the 25th of July. We finally get a bit of a pulse. The morning of the 25th is the standout for this whole forecast. The wind drops to glassy, calm as can be, and the swell picks up to 5ft coming from the SSW with a short period of 6 seconds. The combined energy is moderate (299). It’s a bit short-period, but with that glassy surface, it’ll be clean and fun for a beginner-friendly spot like this. The water temperature is 77°, which is about average for this time of year, so no wetsuit worries.
The afternoon of the 25th sees the swell building to 6ft from the SW, but the wind swings cross-shore, so it won’t be as clean. Still, the energy is solid (526). That’s a bit much for beginners, though. After that, through the 26th and 27th of July, it drops back down and the wind turns messy again.
The next real chance is on Tuesday the 28th of July. Another glassy morning, with the swell at 2ft from the SSE. It’s small, but clean. The combined energy is moderate (235). That’s a nice little session for a longboard or a foamie. The 30th of July sees a late appearance of a very long-period groundswell from the SE at 16 seconds, with a tiny 2ft and offshore wind, but it’s just a whisper.
So, the best on offer is the morning of Saturday the 25th of July. Glassy, waist-high, clean conditions. Don’t expect perfection, but it’s the only time the stars align here. The 28th of July morning is a decent backup for a small-wave cruise.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 30°C on Thu morning, min 24°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Mon morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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 10 | E 10 | E 9 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | ENE 11 | ENE 11 | ENE 11 | ENE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 61 | 47 | 102 | 115 | 116 | 181 | 199 | 158 | 93 | 119 | 173 | 199 | 155 | 152 | 150 | 223 | 302 | 469 | 407 | 407 | 407 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | on | on | on | on | on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on |
High Tide | 6:18PM1.48m | 4:37AM1.51m | 6:44PM1.48m | 5:21AM1.51m | 7:10PM1.47m | 6:05AM1.47m | 7:35PM1.45m | 6:50AM1.40m | 8:00PM1.43m | 7:39AM1.31m | 8:26PM1.41m | 8:37AM1.20m | 8:54PM1.39m | ||||||||
Low Tide | 11:08AM0.01m | 11:24PM0.97m | 11:44AM0.04m | 00:00AM0.89m | 12:18PM0.11m | 00:36AM0.82m | 12:51PM0.22m | 1:15AM0.75m | 1:23PM0.36m | 1:57AM0.70m | 1:55PM0.52m | 2:46AM0.65m | 2:25PM0.68m | ||||||||
 | |  |  | |  |  | | | | |  | | | | | | | | |  | |
 | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — |
 | — | 6:53 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — |
mm | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | 7 |
Temp °C | 29 | 29 | 27 | 30 | 29 | 26 | 28 | 27 | 25 | 27 | 27 | 25 | 28 | 28 | 26 | 29 | 29 | 26 | 27 | 27 | 25 |
Feels °C | 32 | 32 | 30 | 34 | 32 | 30 | 31 | 29 | 28 | 30 | 29 | 29 | 29 | 29 | 31 | 33 | 33 | 32 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | E 10 | E 9 | E 8 | E 8 | ESE 9 | ESE 9 | SW 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | ENE 11 | ENE 11 | ENE 11 | ENE 11 |
| kJ | 61 | 47 | 102 | 115 | 116 | 181 | 199 | 14 | 93 | 119 | 173 | 199 | 155 | 152 | 150 | 223 | 302 | 469 | 407 | 407 | 407 |
Swell 2 Height (m) Direction Period (s) | E 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SE 10 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | S 8 | SSE 7 | SSE 7 | S 8 | SSE 8 | SSE 8 | SSE 8 | ESE 11 |
| kJ | 43 | 41 | 21 | 18 | 18 | 17 | 20 | 24 | 21 | 18 | 24 | 29 | 67 | 5 | 36 | 19 | 12 | 14 | 12 | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | SE 10 | ESE 9 | SE 9 | SSE 9 | SE 10 | SE 10 | SE 10 | SSW 8 | SW 7 | SW 7 | SW 7 | S 8 | S 8 | ESE 12 | S 8 | S 8 | SE 8 | S 8 | ESE 11 | ESE 11 | SE 12 |
| kJ | 17 | 16 | 13 | 9 | 16 | 24 | 15 | 6 | 8 | 8 | 8 | 5 | 5 | 14 | 12 | 6 | 18 | 12 | 12 | 12 | 5 |
Wind waves Height (m) Direction Period (s) | S 3 | S 3 | S 4 | SSW 5 | SSW 5 | S 4 | SSE 4 | ESE 9 | SE 4 | S 4 | SE 4 | — | — | SSE 8 | — | S 3 | S 3 | SW 3 | SW 3 | SW 4 | SW 6 |
| kJ | 1 | 2 | 22 | 48 | 22 | 25 | 25 | 158 | 15 | 3 | 15 | — | — | 58 | — | 1 | 5 | 3 | 7 | 14 | 114 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 30 | 35 | 30 | 30 | 30 | 30 | 532 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 6 | 6 | 81 | 29 |
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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