Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm Sunday 31 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
20.5° C
(Which is slightly cooler than normal)

How big are the waves at Choshi today (31 May):

  • Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.7m), 10s period with E swell.
  • Evening surf: Evening surf (31 May, local time) - 2.5ft (0.7m), 10s period with E swell.

The current surf forecast for Choshi at 6PM is: 0.7m 10s primary swell from a East direction and 0.4m 12s secondary swell from a South-southeast direction, 0.4m 3s secondary swell from a South-southeast direction (forecast issued at 02:00pm May 31). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (31 May)--
Afternoon (31 May)2.5ft (0.7m)10s
Evening (31 May)2.5ft (0.7m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 18mm), heaviest on Wed morning. Warm (max 23°C on Sun afternoon, min 18°C on Wed morning). Winds increasing (light winds from the SW on Sun night, strong winds from the SE by Wed morning).

Sun
31
Monday
1
Tuesday
2
Wed
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
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
1
S
11
0.6
E
10
1.2
S
5
0.5
E
10
0.4
SSE
14
0.5
S
13
0.5
S
13
0.5
E
10
0.8
S
15
0.5
S
11
1
S
5
0.9
SSE
13
1
SSE
5
1.2
SSE
5
1.6
SE
6
1.8
SE
7
Wave Graph
Metric surfscale
Energy kJ
102
100
100
98
78
69
69
68
231
66
62
47
61
89
86
52
272
63
43
286
53
72
145
289
Wind (km/h)
15
SE
20
SSE
20
S
20
SSW
25
SW
15
SW
20
SW
20
SSW
25
S
30
SSW
30
SSW
25
SSW
25
SSW
20
SSW
20
SSW
25
SSW
25
S
25
S
20
S
25
S
25
S
20
S
30
SSE
40
SE
on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
High Tide
5:15PM1.14m
3:16AM1.29m
5:52PM1.15m
3:49AM1.29m
6:28PM1.15m
4:22AM1.29m
Low Tide
10:04AM-0.01m
10:00PM0.81m
10:38AM-0.02m
10:36PM0.82m
11:11AM-0.01m
11:11PM0.84m
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:22
4:22
4:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:46
6:47
1
2
4
Temp °C
23
23
22
22
20
19
19
21
23
22
21
21
21
21
21
21
21
21
21
21
21
21
19
18
22
22
21
21
18
18
18
20
21
19
17
19
19
20
20
19
18
19
20
19
19
19
15
12
Swell 1
Height (m)
Direction
Period (s)
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
10
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.6
E
9
0.6
SSW
15
Energy kJ
102
100
100
98
71
69
69
68
68
66
46
47
47
46
44
46
46
45
42
44
43
43
58
167
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
6
0.3
SSE
14
0.4
SSE
12
0.4
SSE
12
0.5
SSE
12
0.5
S
11
0.5
S
11
0.4
SSE
11
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.4
SSE
10
0.4
SSE
14
0.5
S
13
0.5
S
13
0.4
SSE
12
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.6
E
9
0.5
SSW
12
0.1
E
15
Energy kJ
8
40
50
49
78
64
63
40
14
13
13
35
61
89
86
52
5
5
5
5
5
58
79
4
Swell 3
Height (m)
Direction
Period (s)
0.2
S
16
0.1
SE
12
0.1
SE
12
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.1
S
18
0.2
ESE
12
0.4
S
16
0.4
SE
11
0.4
SE
11
0.3
S
14
0.4
SSE
10
0.2
S
17
0.3
S
16
0.3
S
16
0.5
S
11
0.3
SE
11
0.5
SSW
11
0.3
SE
11
0.3
SE
11
0.4
SSW
15
Energy kJ
19
6
6
23
22
23
6
14
78
33
45
37
34
24
48
43
63
19
64
20
20
79
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
6
0.4
SSE
3
0.6
S
4
0.9
S
5
0.9
S
6
0.7
S
6
0.7
S
5
1
S
11
1.1
S
5
1.2
S
5
0.8
S
5
0.6
S
4
0.6
S
4
0.5
S
4
0.5
S
4
0.8
S
15
1.1
S
4
1
S
5
0.9
SSE
13
1
SSE
5
1.2
SSE
5
1.6
SE
6
1.8
SE
7
Energy kJ
12
3
9
43
50
30
29
231
53
62
27
12
10
8
7
272
42
43
286
53
72
145
289
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
2
1
2
2
2
2
4
3
2
2
2
2
2
2
2
2
2
2
1
4
4
Distance (km)
56
56
52
640
147
52
52
52
56
613
207
56
159
56
52
56
56
56
56
56
56
55
916
916
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
2
2
3
4
3
3
4
4
4
4
4
4
4
4
4
2
3
4
2
1
6
4
Header Global
Rating
(10 max)
7
7
6
6
5
5
5
5
5
5
5
4
5
5
5
8
5
4
5
4
6
4
4
5
  • 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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