Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Sunday 10 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Choshi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Choshi sea temperature is
17.6° C
(Which is 2.1°C colder than average for this time of year)

How big are the waves at Choshi today?

The current surf forecast for Choshi at 2AM is: 0.5m 10s primary swell from a East-southeast direction and 0.1m 10s secondary swell from a East direction, 0.8m 5s secondary swell from a South-southeast direction (forecast issued at 08:00pm May 10). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (11 May)1.5ft (0.5m)10s
Afternoon (11 May)1.5ft (0.5m)10s
Evening (11 May)1.5ft (0.5m)10s

Table - waves today at Choshi. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 19°C on Mon morning, min 17°C on Mon night). Wind will be generally light.

Sun
10
Monday
11
Tuesday
12
Wednesday
13
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.8
SE
10
0.8
SE
8
0.7
SE
9
0.8
SE
10
1.1
SE
10
1.1
SE
9
1.1
SE
9
1
ESE
9
1
ESE
9
1
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
Wave Graph
Metric surfscale
Energy kJ
48
47
50
59
59
58
58
57
56
56
54
133
69
90
138
207
198
194
172
172
172
188
188
188
Wind (km/h)
25
SSE
25
S
25
S
20
SSW
20
SSW
20
SSW
25
S
25
S
25
S
20
S
20
S
15
S
10
S
10
SSE
15
SSE
15
SE
15
SSE
15
SSE
5
SSE
5
N
10
NNE
10
ENE
15
E
15
E
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
glassy
glassy
cross-off
cross
cross-on
cross-on
High Tide
00:07AM0.98m
9:59AM0.95m
00:40AM1.02m
12:03PM0.96m
1:08AM1.07m
1:33PM1.03m
Low Tide
4:04PM0.34m
5:15AM0.79m
5:19PM0.40m
6:33AM0.64m
6:28PM0.46m
7:25AM0.45m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
6:30
6:31
Temp °C
19
18
18
18
18
18
19
19
18
18
18
17
17
18
18
18
18
18
18
17
17
18
19
19
14
13
13
15
15
14
15
15
14
15
15
15
16
16
15
15
15
16
18
17
16
16
17
17
Swell 1
Height (m)
Direction
Period (s)
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.8
SE
10
0.8
SE
8
0.7
SE
9
0.8
SE
10
1.1
SE
10
1.1
SE
9
1.1
SE
9
1
ESE
9
1
ESE
9
1
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
Energy kJ
48
47
50
59
59
58
58
57
56
56
54
133
69
90
138
207
198
194
172
172
172
188
188
188
Swell 2
Height (m)
Direction
Period (s)
0.1
E
11
0.1
E
11
0.1
E
10
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
NE
11
0.1
NE
13
0.1
NE
11
0.2
SSE
8
0.3
SE
8
0.5
ESE
9
0.6
SE
9
0.5
ESE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
12
0.1
NE
11
0.1
NE
10
0.1
NE
10
Energy kJ
2
2
2
2
2
2
2
5
7
5
6
10
48
55
45
3
3
3
3
3
6
5
4
4
Swell 3
Height (m)
Direction
Period (s)
0.2
NNE
4
0.1
NE
10
0.1
NE
10
0.1
N
6
0.1
N
6
0.1
N
6
0.1
N
6
0.1
NE
8
0.1
E
8
0.1
NE
8
0.2
ENE
11
0.3
NE
10
0.3
NE
10
0.3
NE
10
0.2
ENE
10
0.1
NE
13
0.1
NE
13
0.1
NE
12
0.1
S
10
0.1
S
10
Energy kJ
1
4
4
1
1
1
1
3
1
2
11
17
16
15
9
7
6
5
2
2
Wind waves
Height (m)
Direction
Period (s)
0.7
SSE
3
0.8
SSE
4
0.8
SSE
4
0.7
SSE
5
0.7
SSE
5
0.7
SSE
5
0.8
SSE
5
0.9
SSE
4
0.8
SSE
4
0.7
SSE
4
0.6
SSE
5
Energy kJ
9
18
26
26
28
28
31
32
25
20
17
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
1
1
1
2
1
2
Distance (km)
56
56
56
52
52
56
56
56
56
55
55
52
56
56
56
56
56
56
0
0
0
71
112
112
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
5
5
9
8
6
9
8
5
5
4
5
9
5
5
9
9
9
9
9
9
9
9
9
8
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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