Usami Surf Break

Lat Long: 35.00° N 139.08° E

Usami 48 hour detailed Surf Forecast

Issued: 8 am 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's Usami sea temperature is
27.8° C
0.9° 

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


How big are the waves at Usami today (03 Aug):

  • Morning surf: Morning surf (03 Aug, local time) - 5ft (1.6m), 16s period with SE swell.
  • Afternoon surf: Afternoon surf (03 Aug, local time) - 6ft (1.8m), 16s period with SE swell.
  • Evening surf: Evening surf (03 Aug, local time) - 7ft (2.1m), 17s period with SE swell.

The current surf forecast for Usami at 5PM is: 2.0m 16s primary swell from a East-southeast direction and 0.7m 20s secondary swell from a Southeast direction (forecast issued at 08:00am August 03). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (03 Aug)5ft (1.6m)16s
Afternoon (03 Aug)6ft (1.8m)16s
Evening (03 Aug)7ft (2.1m)17s

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


Short Range Forecast

Some drizzle, heaviest during Wed night. Warm (max 27°C on Tue afternoon, min 22°C on Mon night). Mainly fresh winds.

Monday
3
Tuesday
4
Wednesday
5
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)
2
2
2
3
2
2
2
2
2
2
2
3
2
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SE
16
1.6
SE
16
1.7
ESE
16
1.8
SE
16
2.1
ESE
16
2.1
SE
17
2.2
SE
17
2.3
SE
16
2.4
SE
16
2.5
SE
17
3
SE
16
3
SE
16
3
SE
16
0.3
E
13
3.5
SE
16
3.5
SE
16
3.5
SE
16
3.5
SE
16
3.5
SSE
16
3.5
SSE
16
3.5
SSE
16
0.1
E
18
Wave Graph
Metric surfscale
Energy kJ
1005
1239
1373
1672
2263
2340
2794
2709
3090
3723
3840
4467
4869
30
0
0
0
0
0
0
0
6
Wind (km/h)
20
NE
20
NE
25
NE
25
NE
30
NE
30
NE
25
NE
25
NE
25
NE
25
NE
30
ENE
25
ENE
25
ENE
25
NE
25
NE
25
NE
20
NE
25
NE
25
NE
25
ENE
25
ENE
20
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
7:27AM1.40m
8:01PM1.47m
8:16AM1.31m
8:25PM1.45m
9:15AM1.20m
8:51PM1.43m
Low Tide
1:39PM0.47m
2:17AM0.56m
2:08PM0.63m
3:04AM0.53m
2:35PM0.79m
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:44
6:43
 mm
Temp °C
24
24
24
25
25
23
23
22
22
24
26
27
25
23
23
23
23
24
25
27
27
25
Feels °C
25
25
24
25
24
21
21
19
20
21
23
25
24
22
21
22
22
22
24
27
28
26
  • 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 Usami 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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