Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Issued: 9 am 13 Oct 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.2°C
0.2° 

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 (13 Oct):

  • Morning surf: Morning surf (13 Oct, local time) - 3ft (0.9m), 10s period with N swell.
  • Afternoon surf: Afternoon surf (13 Oct, local time) - 2.5ft (0.8m), 10s period with N swell.
  • Evening surf: Evening surf (13 Oct, local time) - 2.5ft (0.7m), 9s period with N swell.

The current surf forecast for Boat Basin Lefts at 5PM is: 0.8m 10s primary swell from a North direction and 0.4m 8s secondary swell from a East-northeast direction (forecast issued at 09:00am October 13). The wind direction is predicted to be cross-shore.

Time (ChST) & DateWave HeightWave Period
Morning (13 Oct)3ft (0.9m)10s
Afternoon (13 Oct)2.5ft (0.8m)10s
Evening (13 Oct)2.5ft (0.7m)9s

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


Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light.

Tuesday
13
Wednesday
14
Thursday
15
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
N
11
0.9
N
10
0.8
N
10
0.8
N
10
0.8
N
10
0.7
N
9
0.7
N
9
0.6
N
9
0.7
N
9
0.7
N
9
0.6
N
8
0.6
N
8
0.6
ENE
9
0.6
ENE
9
0.6
ENE
9
0.6
ENE
9
0.6
ENE
9
0.6
ENE
9
0.6
N
10
0.6
N
10
0.6
N
10
0.6
ENE
9
Wave Graph
Metric surfscale
Energy kJ
223
171
127
122
116
85
81
58
78
76
51
50
64
62
62
61
61
61
78
71
69
61
Wind (km/h)
5
S
10
SSE
10
S
5
SSW
5
SSW
5
S
5
S
5
SE
5
ESE
10
E
15
E
15
E
10
E
10
E
10
E
10
ENE
10
E
10
ENE
15
NE
15
NE
15
NE
10
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
High Tide
9:54AM0.87m
8:22PM0.85m
10:43AM0.84m
8:48PM0.83m
11:34AM0.82m
9:15PM0.81m
Low Tide
3:13PM0.59m
3:30AM0.14m
3:50PM0.62m
4:08AM0.15m
4:28PM0.65m
clear
clear
part cloud
thunderstorm
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
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6:11
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6:11
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—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
6:02
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—
—
—
—
—
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6:01
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—
—
—
—
—
6:01
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 mm
—
—
—
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
26
28
28
28
28
27
26
26
26
27
28
28
27
26
26
26
26
27
28
27
27
27
Feels °C
30
31
31
32
32
31
30
30
30
30
30
30
30
29
29
29
29
30
31
29
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 

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