Boat Basin Lefts Surf Break
GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Lat Long: 13.48° N 144.75° E

Issued: 9 am 19 Jun 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.4° 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 (19 Jun):

  • Morning surf: Morning surf (19 Jun, local time) - 1.5ft (0.4m), 7s period with NNE swell.
  • Afternoon surf: Afternoon surf (19 Jun, local time) - 3.5ft (1.0m), 8s period with E swell.
  • Evening surf: Evening surf (19 Jun, local time) - 3ft (0.9m), 8s period with E swell.

The current surf forecast for Boat Basin Lefts at 5PM is: 0.9m 8s primary swell from a East direction and 0.3m 7s secondary swell from a North-northeast direction (forecast issued at 09:00am June 19). An open ocean swell of 1.7m 7s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (ChST) & DateWave HeightWave Period
Morning (19 Jun)1.5ft (0.4m)7s
Afternoon (19 Jun)3.5ft (1.0m)8s
Evening (19 Jun)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 17mm), heaviest on Fri morning. Warm (max 29°C on Sat morning, min 26°C on Fri morning). Winds decreasing (strong winds from the SE on Fri morning, light winds from the SSE by Sun night).

Friday
19
Saturday
20
Sunday
21
Mon
22
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
1 AM
4 AM
Rating
(10 max)
0
0
0
0
1
1
0
1
1
1
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)
2
E
8
0.3
NNE
7
1.2
E
8
0.9
E
8
0.9
E
8
0.9
E
8
0.3
NNE
7
0.7
E
8
0.9
E
8
0.8
E
8
0.8
E
8
0.6
E
8
0.6
E
8
0.5
E
8
0.5
E
8
0.5
E
8
0.6
E
8
0.6
E
8
0.5
E
8
0.5
ENE
8
0.5
E
8
0.6
E
8
0.5
E
8
0.5
E
8
Wave Graph
Metric surfscale
Energy kJ
446
10
164
100
98
99
9
63
103
82
82
45
44
31
30
30
43
43
30
34
30
44
31
31
Wind (km/h)
55
SE
40
SE
35
SSE
30
SSE
20
SE
25
ESE
25
SE
20
SE
20
SE
20
SE
20
SSE
15
S
10
S
10
SE
15
SE
10
SSE
10
SSE
15
SE
15
SE
10
SE
10
SE
10
SSE
5
SSE
5
SE
Wind State
off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
off
High Tide
9:41AM0.85m
00:25AM0.93m
10:47AM0.79m
1:01AM0.92m
12:04PM0.72m
1:34AM0.91m
Low Tide
5:06AM0.66m
5:02PM0.09m
6:10AM0.61m
5:48PM0.21m
7:16AM0.54m
6:32PM0.33m
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
cloud
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:50
6:50
6:50
 mm
2
4
4
1
1
1
1
1
1
1
1
1
Temp °C
26
26
26
27
27
28
28
28
28
29
29
28
28
28
28
28
28
29
29
29
28
28
27
27
Feels °C
21
24
24
26
28
29
29
30
30
31
30
30
32
31
31
31
31
32
31
32
32
32
31
31
Swell 1
Height (m)
Direction
Period (s)
0.4
NNE
7
0.3
NNE
7
1.2
E
8
0.9
E
8
0.9
E
8
1.2
S
6
0.8
SSW
6
0.7
SSW
6
0.9
E
8
0.8
E
8
0.8
E
8
0.6
E
8
0.6
E
8
0.5
E
8
0.5
E
8
0.7
SSE
7
0.6
E
8
0.6
S
7
0.6
S
6
0.6
S
6
0.6
S
6
0.6
E
8
0.5
E
8
0.5
E
8
Energy kJ
15
10
164
100
98
116
42
29
103
82
82
45
44
31
30
47
43
32
31
30
29
44
31
31
Swell 2
Height (m)
Direction
Period (s)
0.1
N
10
0.1
N
10
0.3
NNE
7
0.3
NNE
7
0.3
SE
10
0.4
SE
10
0.4
SE
9
0.7
E
8
0.3
NNE
7
0.5
SE
10
0.5
SE
10
0.4
SE
10
0.5
SW
5
0.4
SW
6
0.4
SE
11
0.5
E
8
0.4
SE
11
0.6
E
8
0.5
E
8
0.5
ENE
8
0.5
E
8
0.5
S
6
0.5
S
6
0.5
S
6
Energy kJ
2
2
10
9
15
24
31
63
9
48
44
37
14
11
41
30
40
43
30
34
30
20
19
18
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
8
0.1
W
8
0.1
N
9
0.1
N
9
0.3
NNE
7
0.3
NNE
7
0.3
NNE
7
0.3
NNE
6
0.2
N
11
0.2
NNE
7
0.3
N
10
0.4
NE
8
0.4
SE
10
0.4
NE
7
0.4
SW
6
0.4
SE
11
0.4
SW
6
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
11
0.4
SE
11
0.4
SE
11
Energy kJ
3
1
2
2
9
9
9
7
10
5
18
15
33
13
11
40
11
37
36
36
37
40
41
41
Wind waves
Height (m)
Direction
Period (s)
2
E
8
2.4
ESE
7
2.1
SSE
7
1.9
SSE
7
1.5
S
7
0.9
E
8
1.1
ESE
8
1.1
SE
5
1
SSE
5
0.8
S
5
0.8
S
5
0.7
S
5
0.6
SSE
7
0.7
SSE
7
0.7
SSE
7
0.7
SSE
7
Energy kJ
446
611
401
326
208
99
155
51
58
33
33
26
34
45
47
47
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
Distance (km)
1290
1290
1290
1290
0
0
1290
0
0
0
2
1290
0
0
229
1290
0
0
229
2064
229
0
229
2064
Best forecast wave conditions in Guam
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Guam
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
5
5
6
6
6
6
4
4
4
4
5
5
4
6
5
5
8
9
9
9
8
8
7
7
  • 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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