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Surf Forecasts:
Big Ben surfForecast / Chiba / Japan
16 Day Weather and Surf, issued 8 am Tuesday 14 Apr 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
15.1° C
(Which is 3.0°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 Thursday (Apr 16) at 3AM. The primary swell is predicted to be 1.8m and 14s period with a secondary swell of 1.9m and 8s. 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 2.5m 14s and forecast to arrive on Sunday (Apr 19) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Apr 16) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 16th Apr) | 6ft (1.8m) 14s |
| Best Surf | 3AM (Sat 18th Apr) | 7ft (2.2m) 16s |
| Most Powerful | 9PM (Sun 19th Apr) | 8ft (2.5m) 14s |
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 30mm), heaviest during Wed night. Very mild (max 19°C on Tue morning, min 9°C on Thu night). Winds increasing (light winds from the E on Wed night, strong winds from the NE by Thu afternoon). | Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Sun morning, min 11°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 12 | 16 | 16 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 15 | 15 | 14 | 13 | 13 | 12 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 148 | 167 | 236 | 635 | 1307 | 1319 | 1053 | 1849 | 1531 | 2084 | 2254 | 2429 | 2170 | 1666 | 1447 | 1956 | 2491 | 2903 | 1756 | 1494 | 1111 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- off | cross | cross- off | cross | cross- on | cross | on | cross- on | cross | cross | cross- on | cross- off | cross- on | cross- on | cross |
High Tide / height (m) | 3:02PM 1.26 | 3:25AM 1.31 | 3:46PM 1.35 | 3:45AM 1.35 | 4:27PM 1.41 | 4:06AM 1.38 | 5:06PM 1.42 | 4:27AM 1.41 | 5:45PM 1.40 | 4:49AM 1.42 | 6:26PM 1.35 | 5:11AM 1.42 | 7:11PM 1.28 | ||||||||
Low Tide / height (m) | 9:06AM 0.51 | 9:14PM 0.37 | 9:34AM 0.35 | 9:48PM 0.41 | 10:03AM 0.20 | 10:19PM 0.47 | 10:33AM 0.09 | 10:48PM 0.56 | 11:05AM 0.01 | 11:15PM 0.65 | 11:37AM -0.03 | 11:41PM 0.74 | 12:13PM -0.02 | 12:08AM 0.84 | |||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
| Sunrise | 5:09 | - | - | 5:07 | - | - | 5:07 | - | - | 5:05 | - | - | 5:03 | - | - | 5:03 | - | - | 5:01 | - | - |
| Sunset | - | 6:09 | - | - | 6:10 | - | - | 6:12 | - | - | 6:12 | - | - | 6:13 | - | - | 6:14 | - | - | 6:15 | - |
 | |  |  | |  |  | |  |  |  | | | | | | | | | |  | |
Rain (mm) | - | - | - | 1 | 4 | 23 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 19 | 17 | 17 | 16 | 16 | 16 | 14 | 10 | 13 | 12 | 12 | 16 | 17 | 16 | 19 | 19 | 16 | 19 | 19 | 18 |
| Feels °C (?) | 17 | 17 | 16 | 16 | 15 | 16 | 10 | 6 | 2 | 7 | 7 | 11 | 15 | 16 | 16 | 16 | 16 | 16 | 18 | 17 | 14 |
- Map Icons:
Break
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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