Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm 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
18.8° C
(Which is 1.5°C colder than average for this time of year)

How big are the waves at Choshi today?

The current surf forecast for Choshi at 5PM is: 0.6m 10s primary swell from a East-southeast direction and 0.2m 9s secondary swell from a East-northeast direction, 1.0m 5s secondary swell from a South direction (forecast issued at 02:00pm May 19). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 May)--
Afternoon (19 May)2.5ft (0.7m)10s
Evening (19 May)2ft (0.6m)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 33mm), heaviest during Thu night. Warm (max 24°C on Wed morning, min 16°C on Fri morning). Winds increasing (calm on Thu morning, near gales from the NNE by Fri morning).

Tue
19
Wednesday
20
Thursday
21
Fri
22
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
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
0
0
0
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
10
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.6
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
0.6
ESE
10
1.4
ENE
6
0.9
SSE
7
0.8
SSE
8
0.8
S
8
0.7
S
8
0.4
ESE
10
0.5
S
8
2.5
ENE
8
Wave Graph
Metric surfscale
Energy kJ
96
100
78
80
88
88
88
78
86
75
74
72
74
74
74
74
119
91
79
84
64
35
29
746
Wind (km/h)
30
SSW
35
SSW
30
SSW
25
SSW
25
SSW
25
SSW
25
SSW
25
SSW
30
SSW
30
SSW
30
SSW
20
SSW
15
SW
15
SW
10
SW
10
NNE
0
ESE
30
N
30
NNE
35
NNE
35
NNE
35
NE
40
NE
50
NNE
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
High Tide
7:10PM1.16m
4:49AM1.33m
8:04PM1.10m
5:33AM1.27m
9:00PM1.05m
6:23AM1.19m
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
part cloud
part cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
part cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
mod rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
1
2
2
1
3
3
1
1
7
6
5
Temp °C
22
21
20
20
20
20
20
22
24
24
23
22
21
21
21
20
20
18
17
17
17
17
17
16
18
17
17
18
19
18
18
20
21
20
20
22
22
22
23
21
23
14
13
12
12
12
11
8
Swell 1
Height (m)
Direction
Period (s)
0.7
ESE
10
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.7
ESE
10
0.6
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
0.6
SSE
6
0.7
SSE
7
1
NE
6
0.8
SSE
8
0.8
S
8
0.7
S
8
0.5
S
8
0.5
S
8
0.4
SSE
7
Energy kJ
96
100
78
80
88
88
88
78
86
75
74
72
74
74
74
24
49
73
79
84
64
31
29
18
Swell 2
Height (m)
Direction
Period (s)
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
0.3
ENE
8
0.3
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
7
0.6
S
5
0.6
ESE
10
0.9
NNE
6
0.9
SSE
7
0.5
ESE
10
0.4
ESE
10
0.5
ESE
10
0.4
ESE
10
Energy kJ
8
8
21
20
19
19
18
14
14
7
7
6
6
5
17
74
54
91
54
31
51
35
Swell 3
Height (m)
Direction
Period (s)
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
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.1
E
12
0.2
ENE
7
0.2
ENE
7
0.8
ESE
10
0.5
ESE
10
0.1
NE
11
Energy kJ
5
5
2
38
37
37
36
25
25
25
24
3
5
5
107
54
5
Wind waves
Height (m)
Direction
Period (s)
0.8
S
4
1.1
S
5
1
S
5
0.8
S
4
0.7
S
4
0.7
S
4
0.8
S
5
0.7
S
5
0.7
S
5
1
S
5
1.1
S
5
0.9
S
5
0.7
S
5
0.6
S
5
0.8
S
5
0.8
NNE
5
1.4
ENE
6
1.6
NE
6
1.9
NE
7
2
NE
7
2
ENE
7
2.2
NE
7
2.5
ENE
8
Energy kJ
21
51
41
25
19
19
27
24
25
50
62
42
25
17
31
32
119
196
321
407
428
503
746
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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