Choshi surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm Friday 15 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
18.6° C
(Which is 1.5°C colder than average for this time of year)

How big are the waves at Choshi today?

The current surf forecast for Choshi at 9PM is: 1.0m 9s primary swell from a East direction (forecast issued at 02:00pm May 15). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (15 May)--
Afternoon (15 May)3.5ft (1.0m)9s
Evening (15 May)3.5ft (1.0m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 21°C on Sun morning, min 16°C on Fri afternoon). Wind will be generally light.

Fri
15
Saturday
16
Sunday
17
Mon
18
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
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
1
1
1
1
1
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)
1
E
9
1
E
9
1
E
9
1
E
9
0.9
E
9
0.9
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.7
E
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.9
ESE
9
0.9
ESE
9
1
E
9
1
ESE
9
1
ESE
9
1
ESE
9
0.9
ESE
9
0.9
ESE
9
Wave Graph
Metric surfscale
Energy kJ
175
175
168
164
133
133
103
101
103
106
81
110
115
113
115
110
132
129
173
185
173
166
137
131
Wind (km/h)
15
NE
15
ENE
15
E
10
E
5
NE
10
NE
10
NE
10
E
10
E
10
ESE
10
SE
10
S
5
WSW
5
WSW
5
WNW
5
NE
10
NE
15
ENE
10
E
5
W
5
NNW
15
NNE
5
NNE
5
ESE
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
on
cross-on
cross-off
cross-off
off
glassy
cross
cross-on
cross-on
glassy
cross-off
cross-off
cross-off
glassy
High Tide
3:40PM1.18m
2:29AM1.25m
4:34PM1.22m
3:00AM1.31m
5:26PM1.23m
3:34AM1.34m
Low Tide
9:00PM0.68m
9:33AM-0.10m
9:41PM0.76m
10:15AM-0.20m
10:20PM0.82m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:30
4:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:35
6:35
6:36
Temp °C
15
16
16
17
16
16
16
17
18
19
19
18
18
18
18
20
21
21
20
20
19
17
17
19
12
14
14
16
15
15
14
15
16
17
18
18
18
17
17
19
20
19
19
20
19
16
17
19
Swell 1
Height (m)
Direction
Period (s)
1
E
9
1
E
9
1
E
9
1
E
9
0.9
E
9
0.9
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.7
E
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.9
ESE
9
0.9
ESE
9
1
E
9
1
ESE
9
1
ESE
9
1
ESE
9
0.9
ESE
9
0.9
ESE
9
Energy kJ
175
175
168
164
133
133
103
101
103
106
81
110
115
113
115
110
132
129
173
185
173
166
137
131
Swell 2
Height (m)
Direction
Period (s)
0.2
ENE
9
0.1
NE
9
0.4
NE
7
0.4
NE
7
0.4
NE
7
0.3
NE
7
0.3
NE
6
0.4
NE
8
0.3
NE
8
0.3
NE
8
0.4
NE
8
0.3
NE
9
0.3
NE
8
0.2
ENE
8
0.1
NE
9
0.1
SE
11
0.1
SE
11
0.4
NE
10
0.4
NE
9
0.3
NE
9
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
Energy kJ
8
3
17
16
15
7
6
17
10
10
17
12
11
7
3
5
5
32
21
13
10
10
9
9
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
10
0.1
S
7
0.3
NE
9
0.5
SE
9
0.1
SE
11
0.1
SE
11
0.2
ENE
8
0.2
ESE
11
0.2
ESE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
13
0.1
SE
11
0.1
SE
11
0.4
ENE
10
0.3
ENE
9
0.3
SE
10
0.3
ENE
10
0.2
ENE
9
0.3
NE
9
0.3
NE
9
0.4
SSE
8
Energy kJ
32
1
13
37
5
5
7
12
12
5
5
5
7
5
5
31
16
16
19
8
12
12
26
Wind waves
Height (m)
Direction
Period (s)
0.6
NE
7
0.5
NE
7
0.5
NE
6
Energy kJ
30
23
19
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
Distance (km)
117
112
170
71
37
71
71
71
112
56
56
52
0
0
0
0
56
56
56
0
0
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
2
2
2
2
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
2
2
2
2
2
2
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
6
5
6
5
5
5
5
5
5
5
4
5
5
5
5
5
4
4
8
8
9
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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