
Surf Forecasts:
Big Ben surf forecast from 8 Jul 2026:
- Best quality surf: Thursday 9 Jul, 3AM (local time) - 7ft (2.2m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 9AM (local time) - 8ft (2.5m), 17s period, SSW swell with 3,723 kJ wave energy.
- Next surfable swell (1★+): Thursday 9 Jul, 3AM (local time) - 7ft (2.2m), 14s period with SSE 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 Thursday (Jul 09) at 3AM. The primary swell is predicted to be 2.2m and 14s period with a secondary swell of 1.0m and 8s. 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 2.5m 17s and forecast to arrive on Saturday (Jul 11) at 9AM. 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 (Thu 9th Jul) | 7ft (2.2m) 14s |
| Best Surf | 3AM (Thu 9th Jul) | 7ft (2.2m) 14s |
| Most Powerful | 9AM (Sat 11th Jul) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
Righto, Rusty here, checkin’ in with a look at the next couple of weeks. We’ve got a bit of a slow start, but the back half of the forecast is looking like it’ll get pretty rowdy.
Alright, so for the first few days, it’s a bit of a tease. The main show is at Big Ben (a beach/jetty setup), and honestly, it’s not really firing right off the bat. The swell is there, sure—we’re lookin’ at a solid 8ft swell on Wednesday morning from the SSE, with a long 16-second period on a groundswell. That’s a lot of energy (3053), but the wind is a cross-shore from the ENE, which just isn’t gonna clean it up. It’ll be messy. The water is sitting at 74°, which is a bit colder than we usually get this time of year, so maybe grab an extra mil.
Thursday through Saturday the swell sticks around the 7ft mark, still from the south, but it’s all cross-on wind. The wave energy is still moderate to strong (around 1900-2600), but the wind just keeps ruining the party. By Saturday, we’re seeing 8ft from the SSW on a 17-second period (3784 energy), but with a moderate 12 mph cross-on wind, it’s gonna be a choppy mess. For a beginner spot like Big Ben, this is all a bit too much and too ugly.
Sunday is more of the same, with the swell dropping off. Monday and Tuesday see the swell fade away completely – we’re down to 3ft to 4ft, and the energy is weak (under 1000). It’s a bit of a dead stretch for a few days there, from about the 13th to the 15th, with nothing really worth paddling out for.
Now, here’s where it gets interesting. We’ve got a standout window shaping up for the 18th of July. Saturday the 18th morning at Big Ben is looking prime. We’ve got a clean 7ft swell from the SE, with a 13-second period (1821 energy), and the wind is a light cross-offshore from the NNE. That means clean, lined-up waves. This is the best on offer in the whole forecast period. The swell is a bit punchy for a total beginner, but for anyone with a bit of experience, this is the session to circle on the calendar.
But hold onto your board, because the week after that gets next-level. From the 19th through to the 21st, the swell just pumps up. We’re talkin’ 10ft to 16ft of SSE swell (energy readings are huge – 4037 to 11643), but the swell is predicted to be too big for this break. The conditions might be favorable, but 13ft to 16ft waves at a beach/jetty are for absolute experts or kamikazes. It’ll be closing out and dangerous. Not the spot for that.
The 22nd and 23rd look a bit more manageable, with 8ft to 12ft from the SE, but the wind picks up again on the 23rd, and at 12ft, it’s still a big, powerful swell. So, the big takeaway? Keep your eye on the 18th of July. That’s your best chance for a proper session without getting smashed.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Thu morning, min 22°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Mon morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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) | SSE 16 | SSE 15 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | S 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SE 8 | SSE 12 | SE 14 | SSE 14 |
Wave Graph | |||||||||||||||||||||
2900 | 1928 | 1939 | 1421 | 1762 | 1968 | 1387 | 2601 | 3199 | 3723 | 3139 | 2821 | 2535 | 1869 | 953 | 581 | 388 | 109 | 230 | 938 | 1127 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross |
High Tide | 11:16AM1.05m | 10:30PM1.34m | 1:37PM1.08m | 11:19PM1.34m | 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 | ||||||||
Low Tide | 3:58PM0.87m | 6:12AM0.51m | 5:09PM1.01m | 7:21AM0.39m | 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 | ||||||||
4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:35 | — | — | |
— | 6:55 | — | — | 6:55 | — | — | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 23 | 26 | 25 | 23 | 26 | 26 | 24 | 25 | 25 | 24 | 26 | 26 | 24 | 27 | 26 | 24 | 27 | 27 | 24 |
Feels °C | 26 | 26 | 26 | 28 | 26 | 25 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 25 | 28 | 27 | 27 | 29 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 16 | SSE 15 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | S 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SE 8 | SSE 12 | SE 14 | SSE 14 |
2900 | 1928 | 1939 | 1421 | 1762 | 1968 | 1387 | 2601 | 3199 | 3723 | 3139 | 2821 | 2535 | 1869 | 953 | 581 | 388 | 109 | 230 | 938 | 1127 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | S 16 | E 8 | E 8 | SSW 16 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | SE 10 | E 9 | E 9 | SSW 11 | SE 8 | SSW 11 | ESE 9 |
153 | 124 | 120 | 432 | 98 | 82 | 854 | 94 | 87 | 61 | 58 | 60 | 59 | 82 | 25 | 58 | 26 | 88 | 105 | 76 | 158 | |
Swell 3 Height (m) Direction Period (s) | — | S 19 | E 8 | E 8 | E 9 | E 8 | E 8 | — | SSE 10 | — | — | SE 10 | SE 10 | SE 10 | SE 13 | SE 13 | SE 10 | SW 12 | SW 11 | SW 11 | SW 10 |
— | 455 | 146 | 95 | 122 | 98 | 82 | — | 68 | — | — | 27 | 27 | 26 | 7 | 7 | 15 | 92 | 123 | 119 | 49 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 9 | SSE 10 | SE 8 | — | SW 4 | SW 4 | SW 4 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 132 | 81 | 78 | — | 10 | 10 | 15 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 35 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 183 | 30 | 70 | 39 | 120 | 30 | 35 | 30 | 35 |
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.










