Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Monday 04 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
17.0° 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 2PM is: 2.2m 9s primary swell from a South direction and 0.3m 10s secondary swell from a East-southeast direction (forecast issued at 08:00am May 04). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (04 May)8ft (2.5m)9s
Afternoon (04 May)7ft (2.2m)9s
Evening (04 May)4.5ft (1.3m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 4mm), mostly falling on Wed night. Warm (max 23°C on Mon afternoon, min 13°C on Mon night). Winds decreasing (near gales from the SSW on Mon morning, light winds from the ENE by Tue morning).

Monday
4
Tuesday
5
Wednesday
6
Thu
7
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
!
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
2.5
S
8
2.5
S
9
2.4
S
10
2.2
S
9
3.5
SSW
9
1.3
SSE
9
1
SSE
8
0.8
SSE
8
0.6
SSE
7
0.5
SSE
8
0.3
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.8
SSE
5
0.4
ESE
9
0.8
SSE
5
0.8
SSE
5
0.9
SSE
5
1.1
SSE
5
0.9
SSE
5
0.9
SE
5
Wave Graph
Metric surfscale
Energy kJ
789
977
1048
792
2002
258
151
90
43
34
18
31
37
37
36
35
35
34
33
33
37
62
47
38
Wind (km/h)
60
SSW
60
SSW
50
SSW
50
SSW
35
WSW
25
NNE
30
NNW
35
N
35
NNW
20
N
15
ENE
15
SE
25
S
25
S
20
S
20
SSW
20
SSW
20
S
20
S
20
S
25
S
25
S
15
S
15
SSE
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
4:15AM1.27m
6:29PM1.09m
4:41AM1.26m
7:09PM1.06m
5:08AM1.23m
7:53PM1.02m
Low Tide
11:25AM-0.04m
11:21PM0.74m
11:57AM-0.01m
11:51PM0.78m
12:32PM0.05m
00:23AM0.82m
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
clear
cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:41
4:41
4:39
4:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
6:24
6:25
6:27
1
Temp °C
21
22
22
23
21
17
16
13
13
14
15
15
16
16
17
17
17
18
18
18
18
17
18
17
12
14
14
15
14
13
9
5
5
9
11
10
10
11
13
13
13
15
14
15
15
14
17
16
Swell 1
Height (m)
Direction
Period (s)
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
1.9
S
9
1.3
SSE
9
1
SSE
8
0.8
SSE
8
0.6
SSE
7
0.5
SSE
8
0.4
SSE
7
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
10
0.4
ESE
10
Energy kJ
31
31
32
19
554
258
151
90
43
34
18
31
37
37
36
35
35
34
33
33
33
28
31
32
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
10
0.3
ESE
11
0.3
ESE
10
0.4
ESE
10
0.5
NE
6
0.3
ESE
10
0.4
NE
4
0.2
NNE
4
0.1
NE
4
0.1
NE
10
0.1
NE
10
0.1
NE
9
0.1
NE
7
0.1
NE
7
0.1
NE
6
0.1
NE
6
0.1
NE
12
0.1
NE
12
0.1
NE
11
Energy kJ
20
20
22
20
39
18
18
4
1
1
4
4
3
2
2
2
1
5
5
5
Swell 3
Height (m)
Direction
Period (s)
0.2
N
4
0.4
S
10
0.3
ESE
10
0.3
NE
6
0.1
NE
6
0.1
N
6
0.1
NE
11
0.1
NE
5
0.1
NE
5
0.1
E
12
0.1
NE
12
0.1
NE
11
Energy kJ
1
32
20
5
2
1
5
1
1
3
5
5
Wind waves
Height (m)
Direction
Period (s)
2.5
S
8
2.5
S
9
2.4
S
10
2.2
S
9
3.5
SSW
9
1.2
NE
5
0.8
NE
5
0.8
NNE
4
0.9
NNE
6
0.6
N
4
0.4
NNE
4
0.4
SSE
7
0.7
SSE
3
0.9
SSE
4
0.8
SSE
4
0.9
SSE
4
0.8
SSE
5
0.7
SSE
5
0.8
SSE
5
0.8
SSE
5
0.9
SSE
5
1.1
SSE
5
0.9
SSE
5
0.9
SE
5
Energy kJ
789
977
1048
792
2002
76
30
21
68
15
8
20
8
23
24
32
28
19
28
25
37
62
47
38
Nearest Offshore or Glassy
Rating
(10 max)
3
2
4
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
609
591
591
877
631
37
609
147
128
117
112
56
56
56
56
112
52
56
56
56
203
56
112
125
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
4
1
2
3
1
2
3
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
4
4
4
4
5
5
5
4
5
4
5
5
5
5
5
5
5
5
6
5
9
9
9
6
  • 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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