Big Ben surfForecast / Chiba / Japan

information circle16 Day Weather and Surf, issued 2 am Sunday 31 May 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
22.0° C
(Which is normal for this time of year)

Big Ben surf forecast from 31 May 2026:

  • Best quality surf: Thursday 4 Jun, 12AM (local time) - 13ft (4.0m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 4 Jun, 12AM (local time) - 13ft (4.0m), 14s period, SSW swell with 6,135 kJ wave energy.
  • Next surfable swell (1★+): Sunday 31 May, 12PM (local time) - 2.5ft (0.8m), 10s period with E swell.

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 (May 31) at 12PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.5m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big Ben in the next 16 days are 4.0m 14s and forecast to arrive on Thursday (Jun 04) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Thursday (Jun 04) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sun 31st May)2.5ft (0.8m) 10s
Best Surf12AM (Thu 4th Jun)13ft (4.0m) 14s
Most Powerful12AM (Thu 4th Jun)13ft (4.0m) 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

Light rain (total 5mm), mostly falling on Tue night. Warm (max 24°C on Sun morning, min 19°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 195mm), heaviest during Wed night. Warm (max 22°C on Wed night, min 17°C on Fri night). Mainly strong winds.

Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
1
0
1
0
0
0
0
0
!
2
2
3
0
0
0
1
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
E
10
0.9
ESE
10
0.8
S
11
0.8
S
11
0.7
SSW
15
0.9
SSW
13
0.9
SSW
12
1.2
SSW
14
1.1
SW
13
1.1
SW
15
4
SE
8
4
SSW
14
2.1
SSW
12
1.3
SE
9
2.1
NE
9
1.4
ENE
9
1.6
ENE
10
1.4
ENE
10
1.6
ENE
11
1.6
ENE
11
1.5
ENE
11
Wave Graph
Metric surfscale
Energy kJ
161
176
160
149
196
303
220
486
388
505
2068
6135
1138
300
684
313
462
394
550
571
571
Wind (km/h)
0
E
10
SSE
25
SW
10
SSW
20
SSW
20
SW
20
S
20
S
15
S
30
ESE
40
E
5
N
30
NNW
20
N
20
NNE
25
NE
25
ENE
20
NE
20
NE
15
ENE
10
NNE
glassy
cross-on
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-off
High Tide
5:33PM1.39m
3:42AM1.46m
6:15PM1.39m
4:15AM1.47m
6:57PM1.38m
4:50AM1.45m
7:39PM1.35m
5:28AM1.40m
8:22PM1.31m
6:11AM1.32m
9:06PM1.28m
7:03AM1.23m
9:52PM1.26m
Low Tide
10:22AM-0.04m
10:30PM0.94m
10:59AM-0.08m
11:06PM0.97m
11:37AM-0.07m
11:43PM0.99m
12:16PM-0.03m
00:25AM1.00m
12:56PM0.06m
1:13AM1.00m
1:39PM0.17m
2:13AM0.97m
2:25PM0.31m
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
light rain
heavy rain
heavy rain
heavy rain
light rain
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:26
4:26
4:26
4:26
4:24
4:24
4:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:47
6:49
6:49
6:50
6:50
5
35
90
69
1
Temp °C
24
24
19
24
23
20
22
22
21
19
20
22
20
20
19
20
20
18
19
20
18
25
24
15
24
22
19
20
21
21
16
17
20
18
18
17
16
16
15
16
18
18
Swell 1
Height (m)
Direction
Period (s)
0.9
E
10
0.9
ESE
10
0.8
S
11
0.8
S
11
0.9
S
10
0.9
SSW
13
0.9
SSW
12
1.2
SSW
14
1.1
SW
13
1.1
SW
15
1.4
SW
16
4
SSW
14
2.1
SSW
12
1.4
NE
8
1.5
ENE
9
0.7
SSW
8
0.5
SSW
8
0.5
SE
9
0.4
ESE
8
0.4
SE
8
1.5
ENE
11
Energy kJ
161
176
160
149
174
303
206
486
388
505
988
6135
1138
253
387
58
34
38
26
17
571
Swell 2
Height (m)
Direction
Period (s)
0.5
S
6
0.5
S
12
0.8
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.7
SW
15
0.6
E
9
0.6
E
9
0.1
SE
15
3.5
SE
10
2
ESE
10
1.3
SE
9
0.9
SE
9
0.6
SE
8
0.1
SE
12
0.4
SSW
7
0.4
SSW
7
0.3
SSW
7
0.4
SSW
9
Energy kJ
15
72
125
92
90
89
220
62
60
8
2450
701
300
123
49
6
21
15
9
26
Swell 3
Height (m)
Direction
Period (s)
0.3
S
14
0.4
SSW
14
0.2
SSE
12
0.4
SSW
16
0.7
SSW
15
0.5
SW
16
0.6
E
10
0.3
SE
11
0.3
SE
11
0.1
S
13
2
S
10
1.1
SW
10
0.7
SW
9
0.1
SE
12
0.1
SE
11
0.2
SSE
11
0.2
SSE
11
0.3
ESE
8
Energy kJ
33
69
15
102
196
129
64
20
20
3
799
244
84
6
5
12
11
12
Wind waves
Height (m)
Direction
Period (s)
0.4
SW
6
1.4
SSW
6
0.8
SSW
5
0.5
SW
4
0.5
S
3
0.6
SSE
4
0.9
SSE
5
1.1
SSE
5
2.1
SE
6
4
SE
8
0.7
NNW
4
2.4
NNE
8
2.1
NE
9
1.4
ENE
9
1.6
ENE
10
1.4
ENE
10
1.6
ENE
11
1.6
ENE
11
Energy kJ
14
132
36
9
5
13
41
74
337
2068
15
750
684
313
462
394
550
571
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
2
2
1
2
2
2
4
5
9
2
3
1
1
1
1
2
2
3
Distance (km)
0
30
81
30
35
81
30
30
30
860
595
18
72
6
49
29
534
35
942
595
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
2
2
2
2
2
9
3
1
1
3
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
3
4
4
4
4
4
4
4
5
9
4
3
1
1
2
2
2
2
3
Header Global
Rating
(10 max)
7
7
6
5
5
4
5
5
6
4
4
5
5
5
4
5
8
5
5
7
9
  • 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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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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