Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Thursday 30 Apr 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
17.9° C
(Which is 1.0°C colder than average for this time of year)

How big are the waves at Choshi today?

The current surf forecast for Choshi at 5AM is: 1.7m 7s primary swell from a Southeast direction and 0.2m 13s secondary swell from a East-northeast direction, 0.2m 8s secondary swell from a East-northeast direction (forecast issued at 08:00pm April 30). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (01 May)8ft (2.4m)8s
Afternoon (01 May)7.5ft (2.3m)9s
Evening (01 May)8ft (2.4m)9s

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 34mm), heaviest during Fri morning. Warm (max 22°C on Sat morning, min 15°C on Fri night). Winds decreasing (strong winds from the SE on Fri morning, light winds from the SW by Sat afternoon).

Thu
30
Friday
1
Saturday
2
Sunday
3
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
1
0
0
2
1
0
1
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>
Wave
Height (m)
Direction
Period (s)
0.7
E
5
0.9
ESE
4
1.3
ESE
5
1.7
SE
6
1.8
SE
7
2.4
SE
8
2.5
SE
9
2.3
SSE
9
2.5
SSE
10
2.4
S
9
1.5
S
9
1.3
S
10
1.1
S
11
0.8
S
11
0.7
ESE
9
0.7
ESE
9
0.8
ESE
9
0.8
ESE
9
0.9
ESE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
10
1.1
SE
9
0.6
ESE
10
Wave Graph
Metric surfscale
Energy kJ
20
33
97
223
292
681
952
808
1150
929
342
325
295
160
88
88
94
98
166
163
105
105
225
71
Wind (km/h)
20
ESE
25
SE
30
SE
35
SSE
35
SSE
50
SE
50
SSW
35
SSW
40
SSW
50
SW
20
WSW
25
WSW
25
WNW
25
WNW
15
WNW
25
WSW
10
SW
15
SSE
20
E
20
E
20
ESE
15
SE
15
SSW
40
SSW
cross-on
on
on
on
on
on
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
High Tide
3:55PM1.12m
3:02AM1.23m
4:36PM1.13m
3:25AM1.26m
5:14PM1.13m
3:49AM1.28m
Low Tide
9:19PM0.55m
9:53AM0.04m
9:50PM0.60m
10:24AM-0.02m
10:21PM0.65m
10:54AM-0.05m
cloud
cloud
light rain
light rain
light rain
mod rain
heavy rain
light rain
clear
clear
cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:45
4:43
4:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:21
6:22
6:22
6:23
1
2
3
9
15
4
Temp °C
17
17
16
17
17
17
19
18
20
18
16
15
15
18
22
22
21
19
18
18
18
20
21
20
13
13
11
12
12
9
13
14
15
9
12
10
9
12
17
17
19
17
15
14
14
19
19
13
Swell 1
Height (m)
Direction
Period (s)
0.3
ESE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
13
0.2
ENE
13
0.2
ENE
13
1.2
ESE
9
0.2
ENE
12
0.9
ESE
10
1.5
S
9
1.3
S
10
1.1
S
11
0.8
S
11
0.7
ESE
9
0.7
ESE
9
0.8
ESE
9
0.8
ESE
9
0.4
SSE
5
0.9
ESE
10
0.8
ESE
10
0.8
ESE
10
0.9
ESE
10
0.6
ESE
10
Energy kJ
13
6
6
6
17
17
16
238
14
166
342
325
295
160
88
88
94
98
8
163
105
105
142
71
Swell 2
Height (m)
Direction
Period (s)
0.2
ENE
8
0.1
E
13
0.1
NE
14
0.2
ENE
13
0.2
ENE
8
0.1
NE
8
0.4
NE
13
0.2
ENE
12
0.2
ENE
12
1.1
ESE
10
1
ESE
10
0.9
ESE
9
0.8
ESE
9
0.6
S
8
0.3
SSE
8
0.2
S
11
0.5
S
5
0.7
S
7
0.1
NE
11
0.5
ESE
4
0.2
ENE
10
0.1
NE
10
Energy kJ
6
4
7
17
6
3
57
15
14
231
175
124
94
42
12
9
12
50
4
9
10
4
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
9
0.1
E
11
0.1
E
11
0.1
NE
10
0.1
NE
10
0.2
ENE
12
0.2
ENE
11
0.2
ENE
11
0.2
ENE
11
0.4
S
11
0.3
S
11
0.2
ENE
11
0.2
ENE
11
0.3
N
4
0.4
NNE
4
0.3
NNE
4
0.1
NE
10
0.2
ENE
10
0.1
NE
10
Energy kJ
3
2
3
4
4
13
13
12
12
39
21
12
12
3
6
3
4
10
4
Wind waves
Height (m)
Direction
Period (s)
0.7
E
5
0.9
ESE
4
1.3
ESE
5
1.7
SE
6
1.8
SE
7
2.4
SE
8
2.5
SE
9
2.3
SSE
9
2.5
SSE
10
2.4
S
9
0.3
WNW
4
0.4
W
2
0.5
WNW
3
0.5
W
3
0.8
SSW
5
0.8
S
5
0.9
ESE
10
0.6
E
4
0.8
SSE
5
1.1
SE
9
1.2
S
5
Energy kJ
20
33
97
223
292
681
952
808
1150
929
3
2
5
5
35
33
166
10
35
225
66
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
3
4
4
2
1
1
1
2
2
2
3
2
1
2
1
1
2
1
1
Distance (km)
1007
933
206
159
121
115
115
121
609
609
609
609
37
37
52
170
37
55
56
71
71
52
207
2194
Best forecast wave conditions in Chiba
Rating
(10 max)
4
4
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
1
4
2
4
4
4
2
1
1
1
4
4
2
3
3
3
2
2
2
2
1
Header Global
Rating
(10 max)
5
5
5
6
6
6
7
7
6
6
5
5
9
5
5
5
5
4
4
4
4
5
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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