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Surf Forecasts:
Big Ben surfForecast / Chiba / Japan
16 Day Weather and Surf, issued 2 pm Saturday 21 Mar 2026 JSTForecast update in hr min s Forecast update imminent
Big Ben surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Ben sea temperature is
15.5° C
(Which is 1.5°C colder than average for this time of year)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 Sunday (Mar 22) at 9AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.5m and 4s. Another secondary swell of 0.8m and 4s 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 2.3m 9s and forecast to arrive on Saturday (Mar 28) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Saturday (Mar 28) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sun 22nd Mar) | 2.5ft (0.7m) 12s |
| Best Surf | 6AM (Fri 27th Mar) | 7ft (2.1m) 8s |
| Most Powerful | 9PM (Sat 28th Mar) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Big Ben over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 21mm), heaviest during Mon afternoon. Very mild (max 14°C on Sun afternoon, min 9°C on Mon night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 56mm), heaviest during Wed night. Very mild (max 15°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 12 | 12 | 12 | 6 | 7 | 8 | 9 | 8 | 8 | 9 | 10 | 5 | 7 | 6 | 7 | 8 | 8 | 9 | 9 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 402 | 172 | 125 | 123 | 75 | 137 | 365 | 443 | 342 | 201 | 99 | 103 | 154 | 97 | 173 | 181 | 194 | 527 | 596 | 773 | 737 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | on | on | ||
High Tide / height (m) | 6:27PM 1.36 | 5:56AM 1.39 | 7:09PM 1.27 | 6:16AM 1.38 | 7:58PM 1.15 | 6:37AM 1.34 | 9:06PM 1.04 | 6:56AM 1.29 | 7:14AM 1.21 | 6:23AM 1.11 | 3:01AM 11:43AM 1.16 1.02 | ||||||||||||
Low Tide / height (m) | 12:09AM 0.53 | 12:35PM 0.11 | 12:32AM 0.66 | 1:12PM 0.13 | 12:52AM 0.78 | 1:56PM 0.19 | 1:06AM 0.90 | 2:53PM 0.27 | 4:21PM 0.34 | 6:17PM 0.35 | 8:35AM 0.98 | ||||||||||||
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | |||||||||||||||||
| Sunrise | - | - | 5:41 | - | - | 5:39 | - | - | 5:39 | - | - | 5:37 | - | - | 5:35 | - | - | 5:33 | - | - | 5:33 | ||
| Sunset | 5:51 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:53 | - | - | 5:54 | - | - | 5:55 | - | - | ||
 |  |  |  |  |  |  |  | | | |  | |  | | | |  | |  | | |||
Rain (mm) | - | 1 | - | - | - | 6 | 14 | - | - | - | - | 3 | 4 | 20 | 8 | 9 | 10 | 2 | 1 | - | - | ||
| Temp. °C | 12 | 13 | 13 | 14 | 13 | 11 | 11 | 10 | 14 | 15 | 12 | 11 | 11 | 11 | 10 | 10 | 11 | 15 | 15 | 14 | 16 | ||
| Feels °C (?) | 7 | 9 | 8 | 10 | 9 | 9 | 10 | 8 | 10 | 12 | 9 | 8 | 9 | 11 | 6 | 6 | 10 | 13 | 13 | 12 | 13 | ||
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
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 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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