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Big Ben surfForecast / Chiba / Japan
12 Day Weather and Surf, issued 8 pm Wednesday 29 Oct 2025 JST
Best Forecast Surf Conditions for Big Ben this week:
The surf forecast for Big Ben over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 31) at 3AM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Big Ben in the next 12 days are 3.0m 11s and forecast to arrive on Saturday (Nov 01) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Monday (Nov 03) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 31st Oct) | 7ft (2.2m) 10s |
| Best Surf | 3AM (Sat 1st Nov) | 10ft (3.0m) 10s |
| Most Powerful | 12AM (Sat 1st Nov) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Big Ben over the next 12 days.
Short Range Forecast Heavy rain (total 66mm), heaviest during Fri night. Warm (max 20°C on Fri night, min 14°C on Wed night). Winds decreasing (fresh winds from the SSE on Fri night, calm by Sat afternoon). | Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sun morning, min 11°C on Mon night). Winds increasing (light winds from the WSW on Sat night, strong winds from the WSW by Sun night). | |||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wed 05 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 6 | 8 | 9 | 10 | 11 | 10 | 11 | 10 | 9 | 11 | 11 | 7 | 11 | 8 | 10 | 10 | 8 | 9 | 9 | 11 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 245 | 520 | 627 | 880 | 1066 | 1007 | 1843 | 1248 | 1313 | 588 | 389 | 363 | 149 | 186 | 77 | 53 | 45 | 35 | 34 | 76 | 103 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross | cross- off | cross- off | cross | on | off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | glass | cross | cross | |
High Tide / height (m) | 1:16PM 1.31 | 11:04PM 1.12 | 1:45PM 1.35 | 1:09AM 1.19 | 2:10PM 1.39 | 2:17AM 1.30 | 2:33PM 1.43 | 3:09AM 1.40 | 2:55PM 1.47 | 3:54AM 1.48 | 3:18PM 1.51 | 4:36AM 1.52 | 3:41PM 1.54 | |||||||||
Low Tide / height (m) | 4:52AM 0.55 | 7:24PM 1.05 | 6:23AM 0.59 | 7:55PM 0.88 | 7:29AM 0.61 | 8:24PM 0.70 | 8:19AM 0.63 | 8:54PM 0.53 | 9:00AM 0.67 | 9:24PM 0.37 | 9:35AM 0.72 | 9:56PM 0.23 | 10:08AM 0.79 | |||||||||
Thursday 30 | Friday 31 | Saturday 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wed 05 | ||||||||||||||||
| Sunrise | - | 5:56 | - | - | 5:58 | - | - | 5:58 | - | - | 6:00 | - | - | 6:01 | - | - | 6:01 | - | - | 6:03 | - | |
| Sunset | - | - | 4:47 | - | - | 4:46 | - | - | 4:45 | - | - | 4:45 | - | - | 4:44 | - | - | 4:43 | - | - | 4:42 | |
 |  | | |  |  |  | |  |  | | | | | | | | | | | | ||
Rain (mm) | - | - | - | - | - | 4 | 62 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 15 | 17 | 17 | 15 | 18 | 19 | 20 | 18 | 20 | 18 | 20 | 19 | 18 | 18 | 17 | 14 | 16 | 16 | 16 | 18 | 18 | |
| Feels °C (?) | 10 | 12 | 13 | 12 | 15 | 16 | 17 | 17 | 20 | 17 | 13 | 12 | 11 | 13 | 9 | 6 | 12 | 13 | 14 | 15 | 14 | |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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 12 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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