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 16 Jun 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.5° 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 (17 Jun):

  • Morning surf: Morning surf (17 Jun, local time) - 3ft (0.9m), 9s period with ENE swell.
  • Afternoon surf: Afternoon surf (17 Jun, local time) - 2.5ft (0.8m), 8s period with ENE swell.
  • Evening surf: Evening surf (17 Jun, local time) - 2.5ft (0.8m), 8s period with ENE swell.

The current surf forecast for Boat Basin Lefts at 2AM is: 0.8m 9s primary swell from a East-northeast direction and 0.3m 9s secondary swell from a North direction (forecast issued at 09:00pm June 16). An open ocean swell of 0.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (17 Jun)3ft (0.9m)9s
Afternoon (17 Jun)2.5ft (0.8m)8s
Evening (17 Jun)2.5ft (0.8m)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

Heavy rain (total 29mm), heaviest during Thu afternoon. Warm (max 30°C on Wed morning, min 27°C on Thu night). Wind will be generally light.

Tue
16
Wednesday
17
Thursday
18
Friday
19
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
1
1
1
1
0
0
1
1
1
1
0
0
1
0
1
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)
0.4
ENE
9
0.4
ENE
9
0.8
ENE
9
0.8
ENE
9
0.8
ENE
9
0.9
ENE
9
0.8
ENE
8
0.8
ENE
8
0.8
ENE
8
0.8
ENE
8
0.8
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
1.1
ENE
8
1
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
0.9
ENE
8
0.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
26
26
106
106
103
108
82
78
75
75
75
94
116
113
149
140
112
109
109
109
109
109
107
107
Wind (km/h)
15
ENE
20
E
15
E
15
E
10
E
10
ENE
15
NE
15
NNE
10
NE
10
ENE
15
E
10
ENE
10
ENE
15
NE
20
ENE
15
ENE
10
NE
5
NE
5
NW
10
W
15
WSW
15
SSW
25
S
25
S
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
glassy
on
cross-on
cross-on
cross-off
cross-off
cross-off
High Tide
10:15PM0.95m
7:45AM0.94m
11:02PM0.95m
8:41AM0.91m
11:45PM0.94m
9:41AM0.85m
Low Tide
3:08AM0.72m
3:25PM-0.07m
4:05AM0.70m
4:14PM-0.01m
5:06AM0.66m
thunderstorm
part cloud
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
clear
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:49
6:49
 mm
1
1
3
3
4
3
1
4
4
4
2
Temp °C
28
28
28
28
28
29
30
30
29
28
28
28
28
29
29
29
28
28
27
27
27
28
28
28
Feels °C
30
31
31
31
32
32
33
33
33
32
32
32
32
32
31
32
32
33
31
30
29
30
28
28
Swell 1
Height (m)
Direction
Period (s)
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.8
ENE
9
0.8
ENE
9
0.9
ENE
9
0.8
ENE
8
0.8
ENE
8
0.8
ENE
8
0.8
ENE
8
0.8
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
1.1
ENE
8
1
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
0.9
ENE
8
0.9
ENE
8
Energy kJ
43
42
41
106
103
108
82
78
75
75
75
94
116
113
149
140
112
109
109
109
109
109
107
107
Swell 2
Height (m)
Direction
Period (s)
0.4
ENE
9
0.4
ENE
9
0.3
N
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.6
SSE
9
0.6
SSE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
11
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
Energy kJ
26
26
15
41
41
41
41
41
41
40
40
53
54
40
40
40
55
52
49
48
48
48
47
47
Swell 3
Height (m)
Direction
Period (s)
0.3
N
10
0.3
N
10
0.2
S
8
0.3
N
9
0.3
N
9
0.3
N
9
0.3
N
8
0.3
N
8
0.3
NNE
8
0.3
NNE
8
0.3
NNE
8
0.3
NNE
8
0.3
NNE
8
0.4
NNE
8
0.3
NNE
8
0.4
N
8
0.5
N
7
0.5
N
7
0.5
N
7
0.5
N
7
0.5
N
7
0.5
N
7
0.4
NNE
7
0.4
NNE
7
Energy kJ
16
16
4
15
14
14
13
12
13
13
13
12
12
19
11
18
28
28
28
26
24
26
18
18
Wind waves
Height (m)
Direction
Period (s)
0.6
ENE
5
0.7
ENE
5
0.8
ENE
9
0.2
SSW
2
0.5
SSE
4
0.4
SSE
5
0.5
SE
5
Energy kJ
20
27
106
1
10
9
11
Nearest Offshore or Glassy
Rating
(10 max)
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
Distance (km)
2425
2425
2270
0
0
0
0
2264
2264
0
0
0
0
1290
1290
0
1290
0
11
11
11
7
1290
1290
Best forecast wave conditions in Guam
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
1
Best forecast wave conditions in Guam
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
1
Header Global
Rating
(10 max)
5
5
4
4
4
6
5
5
5
5
4
4
4
5
9
7
9
6
5
5
6
6
6
6
  • 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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