Usami Surf Break

Lat Long: 35.00° N 139.08° E

Usami WaveFinder

Issued: 8 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Usami sea temperature is
24.1° C
1.1° 

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


Usami surf forecast from 8 Jul 2026:

  • Most powerful swell: Wednesday 15 Jul, 6PM (local time) - 3.5ft (1.1m), 8s period, SE swell with 166 kJ wave energy.

Best Forecast Surf Conditions for Usami this week:

The most powerful waves expected at Usami in the next 16 days are 1.1m 8s and forecast to arrive on Wednesday (Jul 15) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 16s period and expected on Friday (Jul 10) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 6PM (Wed 15th Jul)3.5ft (1.1m) 8s

Table - best surf conditions forecast for Usami over the next 16 days.


  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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How to use the Wavefinder 
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