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Surf Forecasts:

Big Ben surfForecast / Chiba / Japan

information circle12 Day Weather and Surf, issued 8 pm Saturday 22 Nov 2025 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
19.6° C
 (Which is 1.3°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 23) at 3AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.5m and 4s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big Ben in the next 12 days are 1.8m 7s and forecast to arrive on Friday (Nov 28) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Friday (Nov 28) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 23rd Nov)1.5ft (0.5m) 10s
Best Surf12PM (Sun 23rd Nov)4.5ft (1.3m) 6s
Most Powerful12PM (Fri 28th Nov)6ft (1.8m) 7s

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 Mostly dry. Very mild (max 17°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Thu night. Very mild (max 17°C on Tue night, min 11°C on Wed night). Winds decreasing (strong winds from the NNW on Wed afternoon, light winds from the SE by Thu morning).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Sat
29
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
1
1
2
2
2
2
1
0
0
2
0
0
1
0
0
0
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
E
1.1
SE
1.3
ESE
1
E
1.6
ESE
1.5
ESE
1.3
ESE
1.1
ESE
1
ESE
0.9
ESE
1.4
SW
0.9
SW
0.8
NE
1
NE
0.8
ENE
0.9
ENE
1.8
SW
1.6
SW
0.7
NE
1
ENE
0.6
ENE
Period(s) (?)1067888888889791097711811
Wave
Graph
(?)Metric surfscale
Energy kJ (?)49821501213072802221691431112331296416611712726727711711784
Wind
(km/h)
10
E
5
NNW
5
NNE
5
WNW
10
N
0
WSW
5
NW
5
SSE
20
SW
30
WSW
15
NNW
45
NNW
15
NNE
10
NE
10
SE
30
SSW
35
SW
30
WSW
15
NNE
15
NE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		cross-
off		glasscross-
off		glassglassglasscrosscross-
off		offcross-
off		cross-
off		crossoncrosscrosscross-
off		cross-
off		crosscross
High Tide
/ height (m)
7:08AM
1.43
5:00PM
1.52
7:56AM
1.38
5:34PM
1.46
8:47AM
1.34
6:14PM
1.37
9:43AM
1.31
7:06PM
1.26
10:40AM
1.29
8:30PM
1.14
11:31AM
1.29
10:42PM
1.08
12:14PM
1.31
Low Tide
/ height (m)
11:50PM
0.01
11:51AM
1.07
12:29AM
0.07
12:32PM
1.10
1:11AM
0.15
1:22PM
1.11
1:58AM
0.27
2:35PM
1.09
2:51AM
0.40
4:17PM
1.03
3:56AM
0.53
5:51PM
0.90
5:10AM
0.65
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Sat
29
Sunrise-6:20--6:20--6:22--6:22--6:24--6:24--6:26-
Sunset--4:30--4:29--4:29--4:28--4:28--4:28--4:28
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
rain showers
rain showers
clear
part cloud
cloud
cloud
Rain (mm)
---------------62----
Temp. °C151617141616141717171716131515171717141212
Feels °C (?)13151614151513151311106613121111101188
  • 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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Latest Updates

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Ben Mondy

Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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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:
surf-forecast.com

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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