Surf Forecasts:
Big Ben surf forecast from 26 Jul 2026:
- Best quality surf: Monday 27 Jul, 9PM (local time) - 3.5ft (1.0m), 7s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 9PM (local time) - 4.5ft (1.4m), 16s period, ESE swell with 921 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 3AM (local time) - 2ft (0.6m), 10s 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 Monday (Jul 27) at 3AM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.6m and 10s. Another secondary swell of 0.7m and 6s 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 1.4m 16s and forecast to arrive on Sunday (Aug 02) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Sunday (Aug 02) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 27th Jul) | 2ft (0.6m) 10s |
| Best Surf | 9PM (Mon 27th Jul) | 3.5ft (1.0m) 7s |
| Most Powerful | 9PM (Sun 2nd Aug) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
The Lowdown
Alright team, Rusty here, breaking down Big Ben in feet and miles per hour.
Right off the bat, it’s a slow start. From Sunday the 26th of July through the end of the month, we’ve got tiny, choppy surf. Water temp is a balmy 81°, a touch warmer than usual for this time of year. Swell heights are barely hitting 3ft, with short periods between 8 and 10 seconds, and the wind is either cross or cross-onshore, messing up the surface. The wave energy is low, reading in the hundreds (197 to 239). Don’t bother getting wet just yet.
The first real glimmer comes on Sunday morning the 2nd of August. A longer-period swell shows up – 12 seconds from the ESE – pushing 3ft. Energy climbs to 378. Still a bit messy with the breeze, but there’s some life in the water.
The sweet spot is from Monday the 3rd to Thursday the 5th of August. The absolute standout is Tuesday morning, the 4th. It’s glassy – totally flat wind – with a clean 8ft swell from the ESE and an amazing 16-second period. Energy jumps to 2818. That’s proper groundswell with punch and shape. For intermediate to experienced surfers, this is going to be smooth, lined-up, and powerful at Big Ben.
Wednesday the 5th gets bigger – 11ft to 13ft from the same direction – but the notes say it’s too big for this break. That’s expert-only, with 17-second periods making it even more intense.
Then from the 6th to the 9th of August, it goes absolutely nuts. We’re looking at 20ft to 40ft swells from the SE and ESE, with energy readings in the tens of thousands (up to 79,605). That’s colossal, and way too big for paddle surfing here. With 30 km/h winds on the 6th, this is more a big-wave or kite-surfing zone. By Monday the 10th, it settles to a more manageable 5ft with a 13-second period, but the wind turns onshore.
So, the one to circle: early morning on Tuesday, the 4th of August. Glassy, 8ft, 16-second groundswell. That’s your best bet.
Rusty.
Short Range ForecastHeavy rain (total 37mm), heaviest during Tue afternoon. Warm (max 28°C on Sun afternoon, min 23°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Sat morning, min 23°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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) | ENE 7 | SE 11 | SE 10 | SE 10 | ENE 8 | ENE 8 | E 8 | ENE 8 | SSW 7 | SSW 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 9 | E 11 | ENE 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 74 | 72 | 70 | 65 | 187 | 105 | 100 | 58 | 91 | 56 | 47 | 181 | 140 | 73 | 71 | 45 | 34 | 45 | 57 | 83 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross-off | cross-on | cross | off | cross-on | cross-on | cross | cross | cross-on | glassy | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 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 | 5:45AM1.54m | 6:57PM1.49m | |||||||
Low Tide | 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 | 12:24PM0.23m | 00:41AM0.69m | |||||||
 |  |  |  |  | |  | |  | | | | |  | | | | | | | |
 | — | — | 4:43 | — | — | 4:43 | — | — | 4:45 | — | — | 4:46 | — | — | 4:47 | — | — | 4:47 | — | — |
 | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — |
mm | 6 | 11 | 2 | — | — | 4 | 10 | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 27 | 27 | 24 | 27 | 27 | 25 | 28 | 27 | 25 | 27 | 27 | 25 | 29 | 29 | 27 | 31 | 31 | 27 |
Feels °C | 32 | 30 | 28 | 28 | 26 | 30 | 31 | 29 | 30 | 30 | 28 | 28 | 30 | 29 | 31 | 32 | 32 | 35 | 35 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | SE 11 | SE 10 | SE 10 | ENE 8 | ENE 8 | E 8 | ENE 8 | SSW 7 | SSW 7 | ENE 7 | SSW 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 9 | E 11 | ESE 10 |
| kJ | 67 | 71 | 67 | 65 | 131 | 105 | 100 | 58 | 91 | 56 | 47 | 20 | 140 | 73 | 71 | 45 | 34 | 45 | 57 | 77 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 14 | S 8 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | ENE 7 | SE 10 | SSW 7 | SE 10 | SSW 7 | SSW 7 | SSW 6 | SE 9 | SE 6 | ENE 8 | SE 8 | ESE 12 |
| kJ | 55 | 72 | 36 | 39 | 64 | 64 | 63 | 48 | 18 | 48 | 34 | 23 | 20 | 17 | 13 | 22 | 6 | 23 | 25 | 60 |
Swell 3 Height (m) Direction Period (s) | SE 14 | SSW 9 | SE 14 | SE 14 | SSW 8 | SSW 9 | SSW 9 | SSW 8 | SE 10 | ENE 6 | SE 10 | ENE 12 | SE 10 | SE 10 | SE 9 | E 11 | SE 9 | ESE 11 | NE 8 | ENE 16 |
| kJ | 74 | 15 | 70 | 65 | 27 | 26 | 29 | 14 | 47 | 15 | 33 | 15 | 24 | 24 | 14 | 10 | 12 | 39 | 15 | 83 |
Wind waves Height (m) Direction Period (s) | SW 4 | E 6 | ENE 6 | ENE 6 | ENE 8 | — | — | SW 4 | — | — | E 3 | ENE 8 | — | — | — | SSW 6 | SSW 3 | SSW 4 | S 6 | SSE 7 |
| kJ | 1 | 51 | 41 | 63 | 187 | — | — | 15 | — | — | 3 | 181 | — | — | — | 12 | 4 | 6 | 18 | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 30 | 6 | 35 | 35 | 0 | 35 | 30 | 0 | 22 | 29 | 6 | 184 | 22 | 0 | 35 | 30 | 30 | 30 | 30 | 6 |
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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