Big Ben surfForecast / Chiba / Japan

information circle16 Day Weather and Surf, issued 8 am Thursday 28 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
21.8° C
(Which is normal for this time of year)

Big Ben surf forecast from 28 May 2026:

  • Best quality surf: Thursday 4 Jun, 3PM (local time) - 18ft (5.5m), 15s period, SSW swell with onshore winds.
  • Most powerful swell: Thursday 4 Jun, 3PM (local time) - 18ft (5.5m), 15s period, SSW swell with 12,300 kJ wave energy.
  • Next surfable swell (1★+): Friday 29 May, 3AM (local time) - 5ft (1.5m), 7s period with SSW 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 Friday (May 29) at 3AM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 1.1m and 9s. Another secondary swell of 0.4m and 11s 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 5.5m 15s and forecast to arrive on Thursday (Jun 04) at 3PM. 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 5s period and expected on Saturday (May 30) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 29th May)5ft (1.5m) 7s
Best Surf 3PM (Thu 4th Jun)18ft (5.5m) 15s
Most Powerful 3PM (Thu 4th Jun)18ft (5.5m) 15s

Table - best surf conditions forecast for Big Ben over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 24°C on Fri morning, min 19°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sun morning, min 20°C on Mon night). Wind will be generally light.

Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
3
0
0
1
0
2
2
1
3
2
1
3
2
2
2
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
ESE
8
1.3
ESE
8
1.2
ESE
9
1.8
SW
7
1
E
10
0.9
ESE
10
1
ESE
11
1
E
11
1
E
10
1
E
10
0.9
ESE
10
0.9
S
12
1.2
S
13
1.5
SSW
14
1.5
SSW
14
1.3
SSW
13
1.6
SSW
15
1.6
SSW
14
1.5
SSW
14
1.4
SW
16
1.4
SW
15
Wave Graph
Metric surfscale
Energy kJ
202
230
243
349
184
163
245
223
206
198
167
222
513
826
911
538
1024
1010
862
952
847
Wind (km/h)
15
SSW
20
S
20
SW
5
WNW
20
ENE
15
ESE
15
ENE
10
SE
0
W
5
ESE
10
S
5
WSW
10
E
10
SE
10
S
10
SSE
15
SSE
15
S
15
SSE
25
SE
25
S
cross-on
cross-on
cross
glassy
cross-on
cross-on
cross
on
glassy
glassy
cross-on
glassy
cross-on
on
cross-on
on
cross-on
cross-on
on
on
cross-on
High Tide
3:17PM1.25m
2:08AM1.36m
4:06PM1.32m
2:39AM1.40m
4:51PM1.37m
3:10AM1.44m
5:33PM1.39m
3:42AM1.46m
6:15PM1.39m
4:15AM1.47m
6:57PM1.38m
4:50AM1.45m
7:39PM1.35m
Low Tide
8:33PM0.79m
9:09AM0.15m
9:15PM0.85m
9:46AM0.03m
9:53PM0.90m
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
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
heavy rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:26
4:26
4:26
4:26
4:26
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:46
6:46
6:47
6:49
2
16
14
Temp °C
23
23
23
24
21
21
24
24
20
25
25
22
25
25
21
24
23
21
21
20
21
24
24
24
27
21
21
24
24
23
26
25
23
24
25
22
24
23
23
21
19
20
Swell 1
Height (m)
Direction
Period (s)
1.2
ESE
8
1.3
ESE
8
1.2
ESE
9
1.5
SSW
7
1.2
SSW
7
0.9
ESE
10
1
ESE
11
1
E
11
1
E
10
1
E
10
0.9
ESE
10
0.9
S
12
1.2
S
13
1.5
SSW
14
1.5
SSW
14
1.3
SSW
13
1.6
SSW
15
1.6
SSW
14
1.5
SSW
14
1.4
SW
16
1.4
SW
15
Energy kJ
202
230
243
228
132
163
245
223
206
198
167
220
513
826
911
538
1024
1010
862
952
847
Swell 2
Height (m)
Direction
Period (s)
0.4
ENE
10
0.4
ENE
10
0.4
ENE
10
1
E
9
1
E
10
0.5
S
7
0.4
S
6
0.7
SSE
6
0.5
SSE
6
0.4
S
6
0.7
S
12
0.8
E
10
0.7
E
10
0.7
E
10
0.7
E
9
0.9
SW
16
0.6
E
9
0.6
E
9
0.6
E
9
0.6
E
9
0.5
E
9
Energy kJ
42
42
40
180
184
23
13
34
21
11
148
127
90
89
85
371
61
60
60
60
41
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
13
0.2
ESE
13
0.1
S
16
0.4
NE
11
0.4
NE
12
0.5
SW
7
0.4
ESE
5
0.3
SW
7
0.3
SW
7
0.3
S
13
0.4
SSW
16
0.7
SSW
15
0.5
SSW
17
0.3
SE
11
0.3
SE
11
0.6
E
9
0.4
SE
12
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.3
SE
11
Energy kJ
17
16
5
32
35
25
10
8
7
31
90
222
170
20
19
62
47
20
19
18
20
Wind waves
Height (m)
Direction
Period (s)
0.6
S
4
1.3
SSW
7
1.8
SW
7
0.7
NE
4
1.3
ESE
6
0.7
NE
5
0.5
E
5
0.9
SSE
5
1.3
SSE
6
Energy kJ
11
137
349
12
111
23
11
41
107
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
3
1
1
2
2
2
2
2
3
2
3
3
3
3
3
3
2
2
Distance (km)
30
30
67
0
81
29
22
30
0
0
30
0
29
30
30
30
30
30
30
35
35
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
3
1
2
2
2
2
2
3
3
3
3
3
3
3
3
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
3
2
1
2
2
2
3
3
4
4
3
4
6
3
4
9
4
3
Header Global
Rating
(10 max)
7
9
9
6
5
5
5
5
7
7
5
5
5
4
4
4
5
5
5
4
4
  • 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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