Choshi Surf Break

Lat Long: 35.71° N 140.80° E

Choshi 48 hour detailed Surf Forecast

Issued: 8 pm 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Choshi sea temperature is
23.1°C
2.2° 

Choshi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Choshi today (19 Sep):

  • Morning surf: Morning surf (19 Sep, local time) - 7.5ft (2.3m), 15s period with SE swell.
  • Afternoon surf: Afternoon surf (19 Sep, local time) - 7ft (2.1m), 14s period with SE swell.
  • Evening surf: Evening surf (19 Sep, local time) - 8ft (2.5m), 13s period with ESE swell.

The current surf forecast for Choshi at 1AM is: 1.1m 14s primary swell from a Southeast direction and 0.1m 22s secondary swell from a South direction (forecast issued at 08:00pm September 18). An open ocean swell of 1.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (19 Sep)7.5ft (2.3m)15s
Afternoon (19 Sep)7ft (2.1m)14s
Evening (19 Sep)8ft (2.5m)13s

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


Short Range Forecast

Heavy rain (total 158mm), heaviest during Sun morning. Warm (max 26°C on Mon morning, min 20°C on Sun morning). Winds increasing (light winds from the NE on Sat night, near gales from the NNE by Mon afternoon).

Fri
18
Saturday
19
Sunday
20
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
Rating
(10 max)
0
0
1
0
1
2
2
2
2
2
1
2
3
1
1
2
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SE
15
0.6
SE
14
1.1
SE
14
1.4
SE
13
2.1
SE
16
2.3
SE
15
2.3
SE
14
2.1
SE
14
2.4
ESE
13
2.5
ESE
13
2.3
ESE
12
2.2
ESE
12
2.2
ESE
12
2.2
SE
12
2.1
ESE
11
2.1
ESE
11
2.1
ESE
11
2.1
ESE
11
Wave Graph
Metric surfscale
Energy kJ
34
160
416
642
2160
2238
2090
1615
1999
1944
1553
1361
1379
1235
1114
1006
1011
1054
Wind (km/h)
40
NNE
35
NNE
35
NNE
35
NNE
35
NNE
35
NNE
30
NNE
30
NNE
30
NNE
25
NNE
25
NE
20
NE
15
NE
25
NE
30
NE
25
NNE
25
ENE
25
E
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross-on
High Tide
6:45PM1.40m
7:11PM1.33m
7:53PM1.25m
Low Tide
2:50AM0.53m
4:17AM0.58m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
mod rain
heavy rain
heavy rain
mod rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:37
 mm
1
2
10
28
21
9
13
Temp °C
21
21
21
21
21
21
21
21
21
22
22
23
22
20
21
22
23
23
Feels °C
17
18
18
18
18
18
19
19
20
22
22
24
22
18
19
21
23
23
  • 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
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Choshi surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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