Surf Forecasts:
Big Ben surf forecast from 6 Jul 2026:
- Best quality surf: Thursday 9 Jul, 12AM (local time) - 8ft (2.5m), 16s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 12AM (local time) - 8ft (2.5m), 18s period, SSW swell with 4,444 kJ wave energy.
- Next surfable swell (1★+): Thursday 9 Jul, 12AM (local time) - 8ft (2.5m), 16s 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 12AM. The primary swell is predicted to be 2.5m and 16s 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 18s and forecast to arrive on Saturday (Jul 11) at 12AM. 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+) | 12AM (Thu 9th Jul) | 8ft (2.5m) 16s |
| Best Surf | 12AM (Thu 9th Jul) | 8ft (2.5m) 16s |
| Most Powerful | 12AM (Sat 11th Jul) | 8ft (2.5m) 18s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here. Let’s look ahead at what we’ve got.
Right now, it’s flat and messy. The first few days are a write-off. We’re looking at a long gap with no real surf on offer until around Tuesday the 8th. Hold tight.
Tuesday, July 7th sees some swell starting to build but the wind is all wrong – cross and cross-onshore, so it’ll be choppy and hard to enjoy. Not worth paddling out for.
The first real glimmer of hope shows up on Wednesday morning, July 8th at Big Ben. We’ve got a 8ft SSE groundswell rolling in with a long 16-second period. That’s a lot of energy heading our way (3834), and with a light cross-onshore breeze, it’ll have some texture but should have plenty of push. That said, 8ft is pushing it for beginners; this is more for the experienced crew. The water is sitting around 73°, which is a bit colder than we’d usually expect for this time of year, so you might want a 3/2.
Thursday, July 9th and Friday, July 10th keep the swell in the 7ft to 8ft range, still from the SSE or S, with those long 14 to 16 second periods. It’s still solid, but the wind stays light and cross-on or clean offshore at times. Consistency is decent, but the quality is held back by that slight chop. Not a standout session, but still rideable if you’re keen.
The real standout, if you can wait, is looking at Sunday, July 19th. This is over a week away, so keep that in mind, but the charts are showing a big 13ft ESE swell with moderate 11-second period and light offshore ENE winds in the morning. That’s a massive amount of energy (3701). However – and this is a big however – 13ft is thumping. The forecast system flags it as too big for this break, and I’d agree. That’s expert territory only, and even then, it could be a washing machine. The afternoon picks up a moderate breeze and gets choppy. For the brave and skilled, it’s a promise, but it’s a long way out and could change.
Between the 11th and the 18th, the swell drops and rises, but the wind is never clean enough to turn it into a must-do session. Most days are cross-onshore with moderate chop, keeping scores low. It’s a long, drawn-out run of mediocrity.
So, bottom line: don’t bother with this week. Keep an eye on Sunday the 19th, but treat it as a wild card for pros.
Stay frothy.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 21°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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) | SE 14 | SE 12 | SE 11 | SE 15 | SE 14 | SE 13 | SSE 16 | SSE 16 | SSE 16 | SSE 14 | SSE 14 | S 15 | S 16 | S 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 179 | 184 | 255 | 1062 | 1355 | 1050 | 3402 | 2338 | 2868 | 2228 | 1910 | 2412 | 3309 | 2600 | 4444 | 4108 | 3522 | 2928 | 2075 | 1511 | 742 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:15PM1.35m | 9:28AM1.11m | 9:50PM1.34m | 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 | ||||||||
Low Tide | 2:32PM0.54m | 3:44AM0.69m | 3:11PM0.71m | 4:55AM0.61m | 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 | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 4:30 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:33 | — | — | 4:33 | — | — |
 | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — | — | 6:55 | — | — | 6:55 | — | — | 6:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 22 | 25 | 25 | 22 | 24 | 24 | 23 | 25 | 25 | 23 | 25 | 25 | 22 | 25 | 25 | 23 | 25 | 25 | 23 |
Feels °C | 24 | 23 | 23 | 25 | 25 | 23 | 25 | 25 | 25 | 26 | 26 | 25 | 27 | 26 | 23 | 26 | 25 | 25 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 14 | SE 12 | SE 11 | SE 15 | SE 14 | SE 13 | SSE 16 | SSE 16 | SSE 16 | SSE 14 | SSE 14 | S 15 | S 16 | S 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 |
| kJ | 179 | 184 | 255 | 1062 | 1355 | 1050 | 3402 | 2338 | 2868 | 2228 | 1910 | 2412 | 3309 | 2600 | 4444 | 4108 | 3522 | 2928 | 2075 | 1511 | 742 |
Swell 2 Height (m) Direction Period (s) | SE 17 | SSE 16 | ESE 7 | ESE 6 | SSE 20 | SSE 16 | S 21 | ESE 8 | ESE 8 | S 18 | S 16 | ESE 8 | ESE 8 | SSW 20 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 9 |
| kJ | 76 | 169 | 78 | 55 | 216 | 844 | 432 | 171 | 137 | 741 | 1042 | 107 | 104 | 961 | 64 | 60 | 58 | 58 | 59 | 56 | 22 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | ENE 8 | SSE 15 | SW 6 | NE 7 | WSW 7 | — | S 19 | — | E 8 | — | ESE 8 | — | ESE 10 | — | — | SE 15 | SE 15 | SE 14 | SE 10 | SSW 12 |
| kJ | 12 | 12 | 201 | 2 | 2 | 4 | — | 891 | — | 127 | — | 104 | — | 135 | — | — | 8 | 8 | 7 | 25 | 28 |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | — | E 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 9 |
| kJ | 144 | 135 | — | 81 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 141 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 534 | 81 | 29 | 29 | 29 | 22 | 22 | 30 | 0 | 29 | 30 | 30 | 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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