Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am 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
17.8° C
(Which is 1.8°C colder than average for this time of year)

How big are the waves at Choshi today?

The current surf forecast for Choshi at 4PM is: 0.6m 9s primary swell from a Southeast direction (forecast issued at 08:00am May 10). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (10 May)2ft (0.6m)10s
Afternoon (10 May)2ft (0.6m)9s
Evening (10 May)1.5ft (0.5m)9s

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 Sun morning). Wind will be generally light.

Sunday
10
Monday
11
Tuesday
12
Wed
13
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
0
0
0
0
0
0
0
0
0
0
1
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)
0.6
SE
10
0.6
ESE
10
0.6
ESE
10
0.6
SE
9
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
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.8
SE
10
0.9
SE
10
0.9
SE
10
0.9
SE
10
0.9
ESE
10
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
Wave Graph
Metric surfscale
Energy kJ
79
64
61
70
48
47
50
59
59
58
58
57
56
64
83
85
130
137
137
154
157
154
148
136
Wind (km/h)
15
E
10
E
15
SSE
20
S
25
SSE
25
S
25
S
25
SSW
20
SSW
25
SSW
25
S
30
S
25
S
20
S
20
S
15
SSW
15
S
15
S
20
SSE
20
SSE
20
SSE
10
SSE
10
SSE
5
SE
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
High Tide
8:09AM1.01m
00:07AM0.98m
9:59AM0.95m
00:40AM1.02m
12:03PM0.96m
1:08AM1.07m
Low Tide
3:21AM0.87m
4:04PM0.34m
5:15AM0.79m
5:19PM0.40m
6:33AM0.64m
6:28PM0.46m
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
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
17
17
17
18
18
18
18
18
18
18
19
19
18
18
18
17
17
18
18
18
18
18
18
17
13
14
13
14
13
13
14
14
15
14
15
14
14
15
15
14
15
15
15
15
15
17
17
17
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
10
0.6
ESE
10
0.6
ESE
10
0.6
SE
9
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
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.8
SE
10
0.9
SE
10
0.9
SE
10
0.9
SE
10
0.9
ESE
10
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
Energy kJ
79
64
61
70
48
47
50
59
59
58
58
57
56
64
83
85
130
137
137
154
157
154
148
136
Swell 2
Height (m)
Direction
Period (s)
0.3
NE
5
0.3
NE
4
0.3
NE
4
0.2
NNE
4
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
14
0.1
NE
13
0.1
NE
11
0.3
NE
11
0.3
NE
10
0.3
NE
10
0.3
NE
10
0.2
ENE
10
0.3
SE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
Energy kJ
4
3
3
1
2
2
2
2
2
2
2
7
7
5
18
17
16
15
9
13
3
3
3
3
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
11
0.3
NE
5
0.1
NE
5
0.1
E
11
0.2
NNE
4
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
NE
8
0.1
NE
7
0.1
SE
8
0.5
NE
10
0.4
NE
10
0.4
NE
10
0.2
ENE
9
0.1
NE
13
0.1
NE
13
Energy kJ
5
4
1
2
1
4
1
1
1
1
3
2
2
3
49
24
24
8
7
6
Wind waves
Height (m)
Direction
Period (s)
0.3
NE
4
0.5
NE
6
0.6
SSE
6
0.7
SSE
4
0.7
SSE
4
0.7
SSE
5
0.7
S
5
0.7
S
5
0.8
SSE
5
0.9
SSE
4
0.8
S
4
0.7
S
4
0.7
SSE
4
0.6
SSE
4
Energy kJ
2
15
22
14
19
24
24
25
28
31
22
16
17
15
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
2
2
2
2
2
2
1
1
Distance (km)
125
266
170
591
613
56
56
56
52
56
56
56
56
56
55
52
55
56
62
56
56
55
37
0
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
1
1
1
1
2
1
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
2
1
1
1
2
1
1
1
1
2
1
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
4
4
4
4
5
9
9
8
6
9
5
5
4
5
4
8
9
6
9
9
9
9
9
9
  • 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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