Boat Basin Lefts Surf Forecast and Surf Reports

(Guam)

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Boat Basin Lefts Surf Guide

Boat Basin Lefts in Guam is an exposed reef break that has quite reliable surf. Offshore winds blow from the southeast. Waves just as likely from local windswells as from distant groundswells and the best swell direction is from the north. When the surf is up, it can get quite busy in the water. Take care of - Urchins - Rocks.

Boat Basin Lefts Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Reef	4	fairly consistent	28.1°C*ocean temperature recorded from satellite

Surfing Boat Basin Lefts:

The best conditions reported for surf at Boat Basin Lefts occur when a North swell combines with an offshore wind direction from the Southeast.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Boat Basin Lefts (for consistent clean waves)?

octoberBest Season: autumn

The best time of year for surfing Boat Basin Lefts with consistent clean waves (rideable swell with light / offshore winds) is during Autumn and most often the month of October. Clean surfable waves are typically found 35% of the time in October while 22% of the time it tends to be blown out. For the remaining 43% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

35%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

22%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

43%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Boat Basin Lefts Location Map

Interactive Boat Basin Lefts surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Boat Basin Lefts is Guam International (Agana) Airport (GUM) in Mariana Islands, 5 km (3 miles) away (directly). The second nearest airport to Boat Basin Lefts is Andersen Afb Airport (UAM), also in Mariana Islands, 22 km (14 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Boat Basin Lefts Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Monday, 4 May 2026, 20:31 Local Time

m, °C	Mon		Tue
ft, °F	7PM	10PM	1AM	4AM
Wave (m)	E	E	E	E
Period (s)	9	9	9	9
Wind (km/h)
Wind State	cross- off	cross- off	cross- off	cross- off

What does Boat Basin Lefts look like?

Latest photos from Boat Basin Lefts. Upload your own or view all photos on the gallery page.

Credit: unknown photographer Credit: Chris Sucameli Credit: Chris Sucameli Credit: George Borges

Tides at Boat Basin Lefts

Current tide and informaton

For Tamuning, 3 km from Boat Basin Lefts.

Next High Water: 10:50pm | 0.85m

Next Low Water: 03:47am | 0.66m

NEXT	IS AT (local time)	remaining
high tide
low tide

Boat Basin Lefts Sea Temperature

Very warm air temperatures and very warm water(28.1 °C) too at Boat Basin Lefts, warm enough for wearing board shorts and a rash vest in the surf. Cloudy, but feeling very pleasant in and out of the water.

Today, many surfers would wear a rashvest wetsuit.

Current Temp*: 28.1°C*ocean temperature recorded from satellite

View Sea Temp Map

Swell History at Boat Basin Lefts

Surf stats for Boat Basin Lefts, see the swell variation by month or season on the history page here.

Average Swell

View Swell Statistics

Wind History at Boat Basin Lefts

Wind stats for Boat Basin Lefts, see the variation in direction and stength by month or season on the history page here.

Average Wind

View Wind Statistics

Boat Basin Lefts Reviews:

Interactive Porthcawl Point location map. View nearby buoy information, live wind conditions and surrounding roads, paths and locations to help find new breaks. Click the buoys or wind icon to view more information.

Ratings

Based on 7 votes.

Overall:4.0
Quality on a good day:3.3
Consistency of Surf:2.6
Difficulty Level:4.1
Wind and Kite Surfing:2.3
Crowds:2.6
...

See all 18 ratings

Review

Impartial reviews submitted by Surf-Forecast users.

joe vilitora from Guam

“Guam surf isn't good at all waste of time and money its always flat.”

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