Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts WaveFinder

Issued: 3 pm 06 Oct 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.9°C
0.5° 

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


Boat Basin Lefts surf forecast from 6 Oct 2026:

  • Best quality surf: Thursday 8 Oct, 10PM (local time) - 3.5ft (1.0m), 18s period, ENE swell with glassy winds.
  • Most powerful swell: Friday 9 Oct, 7AM (local time) - 4.5ft (1.3m), 16s period, ENE swell with 926 kJ wave energy.
  • Next surfable swell (1★+): Thursday 8 Oct, 10PM (local time) - 3.5ft (1.0m), 18s period with ENE swell.

Best Forecast Surf Conditions for Boat Basin Lefts this week:

The surf forecast for Boat Basin Lefts over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 08) at 10PM. The primary swell is predicted to be 1.0m and 18s period with a secondary swell of 0.8m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Boat Basin Lefts in the next 16 days are 1.3m 16s and forecast to arrive on Friday (Oct 09) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Friday (Oct 09) at 7PM.

Wave TypeTime (ChST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Thu 8th Oct)3.5ft (1.0m) 18s
Best Surf10PM (Thu 8th Oct)3.5ft (1.0m) 18s
Most Powerful 7AM (Fri 9th Oct)4.5ft (1.3m) 16s

Table - best surf conditions forecast for Boat Basin Lefts over the next 16 days.


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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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