Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Tuesday 19 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
18.7° C
(Which is 1.6°C colder than average for this time of year)

How big are the waves at Choshi today?

The current surf forecast for Choshi at 12PM is: 0.7m 10s primary swell from a East-southeast direction and 0.2m 9s secondary swell from a East-northeast direction, 0.8m 4s secondary swell from a South direction (forecast issued at 08:00am May 19). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 May)2.5ft (0.7m)9s
Afternoon (19 May)2ft (0.6m)10s
Evening (19 May)2.5ft (0.7m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 35mm), heaviest during Thu afternoon. Warm (max 23°C on Wed morning, min 16°C on Wed night). Winds increasing (light winds from the NNE on Wed night, fresh winds from the NNE by Thu night).

Tuesday
19
Wednesday
20
Thursday
21
Fri
22
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
6 PM
9 PM
12 AM
3 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
ESE
9
0.7
ESE
9
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
1.5
ENE
6
1.5
ENE
6
1.4
ENE
6
1.5
ENE
6
0.5
E
10
1.9
ENE
7
0.5
S
8
Wave Graph
Metric surfscale
Energy kJ
88
92
96
75
78
90
88
88
88
86
86
75
74
74
72
74
74
138
151
132
154
47
313
29
Wind (km/h)
25
SSW
25
SSW
30
SSW
35
SSW
30
SSW
25
SSW
25
SSW
25
SSW
25
SW
20
SSW
15
SW
15
S
15
SSW
10
WSW
10
NNE
25
NE
25
NE
30
ENE
30
NE
20
NNE
35
N
35
NNE
35
NNE
35
NE
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:10AM1.35m
7:10PM1.16m
4:49AM1.33m
8:04PM1.10m
5:33AM1.27m
9:00PM1.05m
Low Tide
11:44AM-0.22m
11:37PM0.90m
12:32PM-0.15m
00:19AM0.91m
1:22PM-0.03m
1:10AM0.90m
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:28
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
6:38
2
4
5
5
1
8
4
1
1
2
Temp °C
19
21
21
21
21
20
20
20
19
22
23
22
22
21
19
17
16
17
18
19
17
17
17
17
17
19
17
17
18
19
18
18
17
20
22
23
22
22
20
14
13
14
15
18
12
12
12
12
Swell 1
Height (m)
Direction
Period (s)
0.7
ESE
9
0.7
ESE
9
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
S
5
0.7
ESE
10
0.7
S
5
0.8
S
5
0.6
S
5
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.2
S
5
0.5
S
6
0.5
SSE
7
0.6
SSE
7
0.6
S
8
0.5
S
8
0.5
S
8
Energy kJ
88
92
96
75
78
90
88
88
88
24
86
25
33
18
72
74
74
2
20
26
38
42
30
29
Swell 2
Height (m)
Direction
Period (s)
0.2
ENE
9
0.2
ENE
9
0.2
ENE
9
0.2
ENE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
8
0.7
ESE
10
0.6
S
5
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.5
S
5
0.4
SSE
5
0.3
S
5
0.3
S
5
0.6
S
6
0.5
ESE
10
0.5
ESE
10
0.5
E
10
0.6
ESE
10
Energy kJ
8
8
8
8
21
20
19
19
18
86
18
75
74
74
11
7
4
4
29
54
54
47
65
Swell 3
Height (m)
Direction
Period (s)
0.4
NE
9
0.4
NE
9
0.1
NE
11
0.1
NE
11
0.1
E
11
0.5
NE
9
0.5
NE
9
0.5
NE
9
0.5
NE
9
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.2
ENE
8
0.3
ENE
8
0.2
ENE
7
0.1
E
12
0.1
NE
12
0.1
NE
11
0.1
NE
11
Energy kJ
29
29
5
5
2
38
37
37
36
14
14
14
6
12
5
3
6
5
5
Wind waves
Height (m)
Direction
Period (s)
0.6
S
4
0.6
S
4
0.8
S
4
1.1
S
5
1
S
5
0.8
S
4
0.7
S
4
0.7
S
4
0.7
S
5
1
S
5
0.9
SSW
5
1.1
S
5
1.1
SSW
5
0.9
SSW
5
0.2
NNE
3
0.6
NE
4
1.1
NE
4
1.5
ENE
6
1.5
ENE
6
1.4
ENE
6
1.5
ENE
6
1.8
NE
6
1.9
ENE
7
2
ENE
7
Energy kJ
11
12
22
51
43
26
18
19
21
51
43
64
72
46
1
10
45
138
151
132
154
231
313
372
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
3
2
Distance (km)
159
206
640
307
56
159
159
159
55
207
37
613
159
0
0
52
71
83
71
57
71
117
350
266
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
1
1
2
2
2
3
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
2
1
1
1
1
1
2
2
1
2
2
2
2
2
2
2
3
3
4
3
2
Header Global
Rating
(10 max)
4
4
4
4
4
4
4
4
5
5
5
5
4
5
4
5
5
4
4
5
4
4
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)
Map placeholder

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