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Surf Forecasts:

Big Ben surfForecast / Chiba / Japan

information circle12 Day Weather and Surf, issued 2 pm Sunday 15 Feb 2026 JST
Forecast 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
16.6° C
 (Which is normal for this time of year)

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 Monday (Feb 16) at 6AM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.9m and 6s. 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 2.2m 8s and forecast to arrive on Tuesday (Feb 17) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Monday (Feb 16) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 16th Feb)2ft (0.6m) 12s
Best Surf 9PM (Wed 18th Feb)2ft (0.6m) 12s
Most Powerful 3AM (Tue 17th Feb)7ft (2.2m) 8s

Table - best surf conditions forecast for Big Ben over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 6mm), mostly falling on Mon night. Very mild (max 15°C on Sun afternoon, min 4°C on Mon night). Winds decreasing (fresh winds from the NNE on Mon night, light winds from the SW by Wed morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 12°C on Sat morning, min 5°C on Wed night). Winds decreasing (fresh winds from the N on Wed night, calm by Thu afternoon).

Sun
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
0
0
0
1
0
1
1
1
2
0
1
2
1
1
1
0
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
E
1.3
SW
0.7
ESE
1.5
ENE
2.1
ENE
1.7
ENE
1.2
ENE
0.6
E
0.6
E
0.6
E
0.6
E
0.6
E
0.5
E
0.7
E
0.6
E
0.8
E
0.7
E
0.6
E
1.4
NE
0.9
ENE
1.1
ENE
Period(s) (?)1461268961211111212121212131312779
Wave
Graph
(?)Metric surfscale
Energy kJ (?)741281521704874071139589891001027214410922215611319276172
Wind
(km/h)
25
SW
20
WSW
20
NNE
30
ENE
25
NE
25
NNE
15
NE
10
NNE
10
N
15
WSW
15
N
30
N
10
NNW
5
WSW
5
ENE
20
SW
10
WNW
25
N
15
NNE
15
NNE
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		crosscrosscross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		glassglasscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
3:03PM
1.31
5:09AM
1.35
3:51PM
1.38
5:28AM
1.37
4:35PM
1.43
5:48AM
1.38
5:15PM
1.45
6:08AM
1.38
5:55PM
1.42
6:28AM
1.38
6:34PM
1.36
6:48AM
1.37
7:17PM
1.27
7:09AM
1.35
Low Tide
/ height (m)
10:09PM
0.02
10:29AM
0.76
10:44PM
0.01
10:57AM
0.64
11:15PM
0.05
11:27AM
0.53
11:45PM
0.12
11:58AM
0.43
12:14AM
0.23
12:30PM
0.36
12:41AM
0.36
1:05PM
0.31
1:05AM
0.50
Sun
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise--6:24--6:24--6:22--6:22--6:20--6:20--6:18
Sunset5:21--5:22--5:22--5:22--5:23--5:24--5:25--
clear
clear
part cloud
cloud
mod rain
part cloud
cloud
cloud
cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
Rain (mm)
----6----------------
Temp. °C151412108787911889811111012131012
Feels °C (?)11107311337641458675768
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Big Ben at:
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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 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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