Choshi Surf Break

Lat Long: 35.71° N 140.80° E

Choshi 48 hour detailed Surf Forecast

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Choshi sea temperature is
26.4° C
0.1° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.4m), 11s period with SE swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 1.5ft (0.4m), 11s period with SE swell.
  • Evening surf: Evening surf (20 Aug, local time) - 1.5ft (0.4m), 11s period with SE swell.

The current surf forecast for Choshi at 9AM is: 0.4m 11s primary swell from a Southeast direction and 0.4m 9s secondary swell from a East direction, 0.4m 6s secondary swell from a Southeast direction (forecast issued at 02:00am August 20). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Aug)1.5ft (0.4m)11s
Afternoon (20 Aug)1.5ft (0.4m)11s
Evening (20 Aug)1.5ft (0.4m)11s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat night. Warm (max 27°C on Fri morning, min 23°C on Sat night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
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
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
E
9
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
ESE
11
0.6
E
11
0.6
E
11
0.6
E
10
0.6
E
10
0.7
E
10
0.7
E
10
0.8
E
11
0.9
E
11
0.9
E
11
1
E
11
0.9
E
11
0.9
E
10
Wave Graph
Metric surfscale
Energy kJ
28
25
33
32
31
31
37
36
35
35
30
44
82
82
78
74
96
98
149
188
191
235
185
168
Wind (km/h)
10
S
10
S
10
S
10
S
15
S
15
S
15
S
15
S
15
SSW
15
SW
10
SSW
15
SSW
20
S
20
S
15
SSW
20
SSW
15
SW
15
SW
10
SW
10
SSW
15
SSW
15
S
5
SSW
0
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
glassy
High Tide
9:48AM1.00m
7:46PM1.39m
8:19PM1.35m
Low Tide
2:48AM0.52m
1:17PM0.95m
3:57AM0.54m
5:36AM0.54m
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:58
5:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:21
6:20
6:17
 mm
1
1
1
1
2
Temp °C
26
25
25
26
26
26
26
26
26
25
25
26
27
27
26
26
26
25
25
26
26
27
26
26
Feels °C
29
28
28
28
27
27
27
28
28
27
27
28
28
28
27
27
29
27
28
28
28
30
30
31
  • 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.


Nearest locationNearest