Boat Basin Lefts Surf Break
GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Lat Long: 13.48° N 144.75° E

Issued: 9 pm 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.6° C

Normal for this time of year

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 Jul):

  • Morning surf: Morning surf (03 Jul, local time) - 3ft (0.9m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (03 Jul, local time) - 3ft (0.9m), 8s period with ENE swell.
  • Evening surf: Evening surf (03 Jul, local time) - 3ft (0.9m), 8s period with ENE swell.

The current surf forecast for Boat Basin Lefts at 3AM is: 0.9m 9s primary swell from a East-northeast direction (forecast issued at 09:00pm July 02). An open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (ChST) & DateWave HeightWave Period
Morning (03 Jul)3ft (0.9m)8s
Afternoon (03 Jul)3ft (0.9m)8s
Evening (03 Jul)3ft (0.9m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 19mm), heaviest on Sun afternoon. Warm (max 30°C on Fri afternoon, min 27°C on Sun afternoon). Winds increasing (light winds from the NE on Thu night, strong winds from the NNW by Sun afternoon).

Thu
2
Friday
3
Saturday
4
Sunday
5
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ENE
8
0.9
ENE
9
0.9
ENE
9
0.9
ENE
9
0.9
ENE
9
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.8
ENE
8
1
ENE
8
0.9
E
13
1.8
E
13
2.1
E
13
2.3
E
14
3
ENE
14
3
E
15
3.5
ENE
15
3.5
E
15
4
E
16
4
ENE
15
Wave Graph
Metric surfscale
Energy kJ
103
108
108
108
106
101
99
99
99
108
108
108
94
150
256
1172
1584
1977
3110
3966
4736
4980
7153
7012
Wind (km/h)
15
NE
15
NE
15
NE
15
NE
15
NE
15
NE
15
NE
20
NNE
15
NNE
15
NNE
15
NE
15
NNE
15
NNE
20
NNE
20
N
20
N
20
N
25
N
20
N
25
N
25
NNW
30
NNW
35
NNW
35
NNW
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:52PM0.86m
8:23AM0.82m
11:21PM0.87m
9:08AM0.80m
11:46PM0.88m
10:00AM0.76m
Low Tide
3:52AM0.67m
3:51PM0.13m
4:39AM0.65m
4:25PM0.18m
5:28AM0.61m
clear
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
clear
clear
thunderstorm
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
 mm
1
1
1
1
1
2
2
1
1
1
3
Temp °C
29
28
28
28
28
29
29
30
29
28
28
28
28
29
30
29
29
28
28
28
29
29
30
28
Feels °C
32
31
30
31
31
32
32
32
32
30
31
31
31
31
32
31
31
29
29
29
30
29
30
27
Swell 1
Height (m)
Direction
Period (s)
0.9
ENE
8
0.9
ENE
9
0.3
SE
8
0.9
ENE
9
0.9
ENE
9
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.4
SE
10
0.8
ENE
8
1
ENE
8
1
ENE
9
1.8
E
13
2.1
E
13
2.3
E
14
3
ENE
14
3
E
15
3.5
ENE
15
3.5
E
15
4
E
16
4
ENE
15
Energy kJ
103
108
11
108
106
101
99
99
99
108
108
23
94
150
154
1172
1584
1977
3110
3966
4736
4980
7153
7012
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
9
0.3
SE
9
0.2
WSW
7
0.3
SE
8
0.4
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
10
0.3
NNE
11
0.4
SE
9
0.5
E
12
0.9
E
13
0.4
NNE
10
0.4
NNE
10
0.4
SE
9
0.4
NNE
10
0.3
NNE
10
0.3
NNE
10
0.2
NNE
10
0.3
NNE
10
Energy kJ
12
12
5
11
18
11
11
16
16
25
24
23
22
75
256
34
34
22
33
19
19
9
18
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
6
0.2
WSW
7
0.1
S
6
0.2
WSW
7
0.2
WSW
7
0.2
WSW
7
0.2
WSW
7
0.3
SE
8
0.3
NNE
12
0.3
NNE
11
0.3
NNE
11
0.2
WSW
6
0.4
NNE
11
0.4
NNE
10
0.4
SE
9
0.4
SE
9
0.4
SSE
9
0.3
NNE
10
0.4
SE
9
0.3
NNE
10
Energy kJ
2
5
1
5
5
5
5
10
26
24
24
4
38
35
21
22
33
20
22
19
Wind waves
Height (m)
Direction
Period (s)
0.9
ENE
9
0.3
NNE
3
0.9
ENE
8
0.5
N
4
0.5
N
10
0.4
NNW
10
0.9
NNW
4
1
NNW
5
1.5
N
6
1.8
N
6
2.3
N
7
Energy kJ
108
1
108
9
49
33
34
47
134
247
488
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
Distance (km)
2070
2084
2074
1996
1858
2074
2074
1290
1290
1290
1290
1290
11
1290
17
1290
1958
1290
1290
1290
1290
1290
1290
1884
Best forecast wave conditions in Guam
Rating
(10 max)
1
3
Best forecast wave conditions in Guam
Rating
(10 max)
1
3
Header Global
Rating
(10 max)
7
6
6
6
6
9
9
9
9
7
9
5
6
8
5
7
5
6
5
5
5
5
9
9
  • 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
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