Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Thursday 23 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
16.9° C
(Which is 1.2°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: 0.5m 10s primary swell from a East direction and 0.6m 6s secondary swell from a Southeast direction (forecast issued at 08:00am April 23). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (23 Apr)1.5ft (0.5m)10s
Afternoon (23 Apr)1.5ft (0.5m)10s
Evening (23 Apr)1.5ft (0.4m)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 35mm), heaviest during Thu night. Very mild (max 18°C on Thu morning, min 12°C on Thu night). Winds decreasing (strong winds from the NNE on Thu night, light winds from the ESE by Sat night).

Thursday
23
Friday
24
Saturday
25
Sun
26
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)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
1
1
1
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)
0.4
ENE
14
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
11
0.3
SE
12
0.5
SSE
8
1.5
ENE
7
1.4
ENE
7
1.4
ENE
7
1.4
ENE
14
1.4
ENE
14
1.4
ENE
14
1.4
ENE
13
1
E
7
1
E
7
1.1
E
7
0.7
ENE
16
0.9
ENE
15
0.9
ENE
15
Wave Graph
Metric surfscale
Energy kJ
79
50
49
49
47
29
29
29
40
25
40
211
186
186
752
767
714
632
100
89
124
217
387
372
Wind (km/h)
5
SW
10
SW
15
S
10
S
10
S
25
NNE
45
NNE
45
NNE
45
NNE
40
NNE
35
NNE
25
NE
20
ENE
25
NE
25
NE
25
NE
25
NE
20
ENE
20
ENE
15
E
15
ESE
15
ESE
10
SE
10
ESE
glassy
cross
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
on
on
on
High Tide
6:08AM1.21m
11:30PM0.95m
6:50AM1.10m
00:56AM0.96m
8:13AM0.98m
1:23AM0.98m
Low Tide
2:27PM0.06m
1:20AM0.94m
3:41PM0.19m
4:00AM0.93m
5:10PM0.28m
cloud
light rain
light rain
light rain
mod rain
mod rain
mod rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:52
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:16
6:17
1
1
4
7
9
8
4
1
Temp °C
17
18
18
15
14
13
13
13
12
12
12
13
13
14
13
13
12
13
12
13
13
13
13
14
18
17
16
14
13
9
5
4
3
4
4
7
8
8
7
7
6
8
7
9
9
10
10
12
Swell 1
Height (m)
Direction
Period (s)
0.8
SE
6
0.8
SE
6
0.6
SE
6
0.6
SE
6
0.5
SE
6
0.5
SE
6
0.4
ESE
9
0.4
ESE
9
0.4
ESE
11
0.3
ESE
11
0.5
SSE
8
0.5
SSE
8
0.5
S
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.3
SSE
8
0.3
SSE
7
0.7
NE
13
0.7
NE
13
0.9
E
6
0.9
E
7
0.9
ENE
15
0.9
ENE
15
Energy kJ
45
43
28
27
16
16
29
29
40
25
40
41
37
24
23
21
11
11
175
172
66
69
387
372
Swell 2
Height (m)
Direction
Period (s)
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.4
ESE
9
0.4
SE
6
0.3
SE
12
0.3
SE
12
0.3
SSE
8
0.3
ESE
10
0.4
NE
15
0.8
N
6
0.8
NE
15
0.7
S
8
0.6
S
8
0.6
S
8
0.5
S
8
0.3
SSE
7
0.4
NE
17
0.7
NE
13
0.7
ENE
16
0.8
E
6
0.8
E
6
Energy kJ
50
50
49
49
47
29
8
22
22
14
20
79
46
262
69
46
43
28
10
71
162
217
48
43
Swell 3
Height (m)
Direction
Period (s)
0.4
ENE
14
0.4
NE
14
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.3
NE
13
0.3
SE
12
0.1
S
10
0.3
SE
12
0.4
NE
13
0.4
E
9
0.6
NE
15
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.1
SE
11
0.2
SSE
7
0.4
ENE
16
0.6
ENE
12
0.1
E
13
Energy kJ
79
48
45
44
44
27
23
2
22
58
27
183
14
14
14
14
14
5
5
103
94
4
Wind waves
Height (m)
Direction
Period (s)
0.3
NNE
2
1.1
NNE
4
1.8
NE
6
1.9
NE
6
1.8
NE
7
1.8
NE
7
1.5
ENE
7
1.4
ENE
7
1.4
ENE
7
1.4
ENE
14
1.4
ENE
14
1.4
ENE
14
1.4
ENE
13
1
E
7
1
E
7
1.1
E
7
1.1
E
7
0.6
SE
5
Energy kJ
1
40
202
293
290
275
211
186
186
752
767
714
632
100
89
124
121
21
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
2
1
1
2
1
1
2
1
1
1
1
1
1
2
4
2
1
2
Distance (km)
0
37
55
55
56
37
610
257
257
266
117
122
266
694
117
610
266
609
591
609
916
56
117
71
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
1
1
1
1
2
1
2
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
2
2
3
2
2
2
2
2
2
1
2
1
1
3
2
2
3
2
4
4
4
4
Header Global
Rating
(10 max)
9
9
6
5
5
5
5
5
5
5
5
5
6
9
5
5
4
5
5
7
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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