Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Issued: 9 pm 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.7°C
0.4° 

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


How big are the waves at Boat Basin Lefts today (03 Sep):

  • Morning surf: Morning surf (03 Sep, local time) - 7ft (2.1m), 8s period with W swell.
  • Afternoon surf: Afternoon surf (03 Sep, local time) - 4.5ft (1.4m), 8s period with WNW swell.
  • Evening surf: Evening surf (03 Sep, local time) - 4.5ft (1.4m), 11s period with WNW swell.

The current surf forecast for Boat Basin Lefts at 1AM is: 1.8m 8s primary swell from a West direction and 1.5m 8s secondary swell from a West direction, 0.5m 10s secondary swell from a Northeast direction (forecast issued at 09:00pm September 02). The wind direction is predicted to be cross-onshore.

Time (ChST) & DateWave HeightWave Period
Morning (03 Sep)7ft (2.1m)8s
Afternoon (03 Sep)4.5ft (1.4m)8s
Evening (03 Sep)4.5ft (1.4m)11s

Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 61mm), heaviest during Wed night. Warm (max 28°C on Thu night, min 26°C on Wed night). Mainly fresh winds.

Wed
2
Thursday
3
Friday
4
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
2
2
0
0
0
0
0
1
0
0
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
W
9
1.5
W
8
1.8
W
8
1.8
W
8
2
W
8
2.2
W
8
1.5
WNW
8
1.4
WNW
8
2.1
W
11
1.4
WNW
11
1.7
WNW
10
2.4
W
10
2.3
W
9
2.1
W
9
1.5
WNW
9
1.9
W
9
1.8
W
8
1.7
W
9
Wave Graph
Metric surfscale
Energy kJ
335
313
432
422
520
628
313
238
1127
478
631
1021
918
723
359
529
465
421
Wind (km/h)
10
SSE
10
SSW
10
N
25
SW
35
W
30
WSW
30
SW
30
SW
30
WSW
30
SW
30
WSW
25
WSW
25
SW
25
WSW
25
WSW
25
W
20
W
20
W
Wind State
off
cross-off
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
High Tide
10:34PM0.89m
12:49PM0.76m
11:08PM0.88m
2:25PM0.75m
Low Tide
4:48PM0.54m
5:51AM0.21m
5:32PM0.62m
6:50AM0.18m
6:28PM0.68m
thunderstorm
thunderstorm
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thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
 mm
4
3
1
1
13
3
2
1
2
2
1
1
1
1
1
1
1
1
Temp °C
26
26
26
26
26
27
27
27
27
27
28
27
28
28
28
28
28
28
Feels °C
30
30
30
26
25
26
26
27
27
27
28
27
29
29
28
28
30
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Boat Basin Lefts surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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