Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts WaveFinder

Issued: 9 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.3° C
0.0° 

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 21 Aug 2026:

  • Best quality surf: Monday 24 Aug, 4AM (local time) - 3.5ft (1.0m), 11s period, N swell with cross-offshore winds.
  • Most powerful swell: Sunday 23 Aug, 4PM (local time) - 4.5ft (1.3m), 11s period, N swell with 396 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 4AM (local time) - 3.5ft (1.0m), 11s period with N 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 Monday (Aug 24) at 4AM. The primary swell is predicted to be 1.0m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Boat Basin Lefts in the next 16 days are 1.3m 11s and forecast to arrive on Sunday (Aug 23) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 10s period and expected on Thursday (Aug 27) at 1PM.

Wave TypeTime (ChST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 24th Aug)3.5ft (1.0m) 11s
Best Surf 4AM (Mon 24th Aug)3.5ft (1.0m) 11s
Most Powerful 4PM (Sun 23rd Aug)4.5ft (1.3m) 11s

Table - best surf conditions forecast for Boat Basin Lefts 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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