Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 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 8PM is: 1.0m 5s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a East-northeast direction, 0.1m 13s secondary swell from a East direction (forecast issued at 02:00pm April 30). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (30 Apr)--
Afternoon (30 Apr)2.5ft (0.7m)5s
Evening (30 Apr)3.5ft (1.0m)5s

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 29mm), heaviest during Fri morning. Warm (max 23°C on Sat afternoon, min 15°C on Thu afternoon). Winds decreasing (strong winds from the SE on Fri morning, light winds from the SSW by Sat afternoon).

Thu
30
Friday
1
Saturday
2
Sun
3
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
1
1
1
1
2
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)
0.9
ENE
5
0.7
E
5
0.7
E
5
1
ESE
5
1.3
ESE
5
1.6
SE
6
1.8
SE
7
2.5
SE
8
2.5
SE
9
3.5
SSE
9
2.4
SSE
9
2.5
SSE
9
1.6
S
8
1.2
S
10
1
S
11
0.8
ESE
9
1
SE
9
0.8
ESE
9
0.7
ESE
9
0.7
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.7
ESE
10
Wave Graph
Metric surfscale
Energy kJ
35
21
20
40
86
195
317
760
987
1921
974
951
356
268
248
98
162
103
88
94
169
148
145
81
Wind (km/h)
20
ENE
15
E
20
ESE
25
ESE
30
SE
35
SE
40
SE
50
SE
35
SW
30
SSW
40
SSW
45
SW
25
W
20
WSW
30
WNW
20
WNW
10
WNW
20
WSW
10
SSW
10
SE
20
E
20
E
20
SE
20
SSE
cross-on
cross-on
cross-on
on
on
on
on
on
cross
cross
cross
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross
on
cross-on
cross-on
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
9:22AM0.14m
9:19PM0.55m
9:53AM0.04m
9:50PM0.60m
10:24AM-0.02m
10:21PM0.65m
cloud
cloud
cloud
cloud
light rain
light rain
light rain
mod rain
heavy rain
light rain
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
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
10
12
1
Temp °C
15
15
16
17
16
17
17
17
19
17
19
18
16
15
16
18
22
23
21
19
18
18
19
20
10
11
12
12
11
12
11
10
15
13
13
10
11
11
10
13
18
18
19
17
14
14
16
18
Swell 1
Height (m)
Direction
Period (s)
0.1
SE
9
0.3
ESE
8
0.3
ESE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
13
0.1
NE
8
0.2
ENE
13
2.3
SE
9
0.3
NE
12
0.2
ENE
12
1.6
S
8
1.2
S
10
1
S
11
0.8
ESE
9
1
SE
9
0.8
ESE
9
0.7
ESE
9
0.7
ESE
10
0.4
SSE
5
0.9
ESE
10
0.9
ESE
10
0.7
ESE
10
Energy kJ
3
14
13
6
6
6
17
3
16
872
23
14
356
268
248
98
162
103
88
94
7
148
145
81
Swell 2
Height (m)
Direction
Period (s)
0.2
ENE
8
0.2
ENE
8
0.1
E
13
0.1
NE
13
0.2
ENE
13
0.1
NE
8
0.3
NE
8
0.1
NE
10
0.2
ENE
12
0.4
NE
12
1.1
ESE
9
1
ESE
10
0.9
ESE
9
0.6
S
11
0.4
S
11
0.3
S
11
0.7
S
5
0.5
S
5
0.2
NNE
4
0.3
NNE
4
0.2
ENE
11
0.6
SE
4
Energy kJ
6
6
4
7
17
2
10
4
15
50
212
175
136
89
39
21
25
12
2
3
11
11
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
6
0.1
SE
9
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
0.5
S
8
0.2
ENE
11
0.2
ENE
11
0.3
SSE
8
0.3
SSE
8
0.4
N
4
0.1
NE
11
0.3
NNE
4
0.2
ENE
10
Energy kJ
4
3
3
2
2
4
4
13
13
12
29
12
12
11
11
6
5
3
11
Wind waves
Height (m)
Direction
Period (s)
0.9
ENE
5
0.7
E
5
0.7
E
5
1
ESE
5
1.3
ESE
5
1.6
SE
6
1.8
SE
7
2.5
SE
8
2.5
SE
9
3.5
SSE
9
2.4
SSE
9
2.5
SSE
9
0.6
W
4
0.2
WNW
3
0.5
W
3
0.5
W
3
0.4
W
3
0.8
SSW
5
1
SSW
6
0.9
ESE
10
0.3
E
3
0.8
SSE
5
Energy kJ
35
21
20
40
86
195
317
760
987
1921
974
951
10
1
5
5
3
27
65
169
1
27
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
2
2
1
4
2
2
1
1
1
2
2
2
1
2
1
1
2
1
1
Distance (km)
117
117
916
976
877
117
613
137
55
613
609
609
609
609
37
37
0
257
52
55
117
115
56
52
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
2
4
4
4
2
2
2
2
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
2
2
4
4
4
4
2
2
1
1
1
4
4
2
1
3
2
2
2
1
1
Header Global
Rating
(10 max)
5
5
5
5
5
6
6
6
7
7
7
6
5
5
9
9
5
5
5
4
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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