Katagai Surf Break

Lat Long: 35.53° N 140.46° E

Katagai WaveFinder

Issued: 8 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Katagai sea temperature is
27.9°C
1.3° 

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


Katagai surf forecast from 23 Aug 2026:

  • Best quality surf: Monday 24 Aug, 9AM (local time) - 2.5ft (0.8m), 18s period, SSE swell with glassy winds.
  • Most powerful swell: Monday 24 Aug, 3PM (local time) - 5ft (1.5m), 16s period, SSE swell with 1,155 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 3AM (local time) - 2.5ft (0.7m), 13s period with SE swell.

Best Forecast Surf Conditions for Katagai this week:

The surf forecast for Katagai over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 3AM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Katagai in the next 16 days are 1.5m 16s and forecast to arrive on Monday (Aug 24) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 24th Aug)2.5ft (0.7m) 13s
Best Surf 9AM (Mon 24th Aug)2.5ft (0.8m) 18s
Most Powerful 3PM (Mon 24th Aug)5ft (1.5m) 16s

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


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  • Live Wind Speed (km/h)
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  • Ocean Swells (m)
  • Wind Speed (km/h)
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