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 03 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) - 2.5ft (0.7m), 8s period with ENE swell.

The current surf forecast for Boat Basin Lefts at 3PM is: 0.9m 8s primary swell from a East-northeast direction (forecast issued at 09:00am July 03). An open ocean swell of 0.3m 10s 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)2.5ft (0.7m)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 45mm), heaviest during Sun night. Warm (max 30°C on Fri morning, min 26°C on Sat night). Winds increasing (light winds from the NNE on Fri night, severe gales from the W by Sun night).

Friday
3
Saturday
4
Sunday
5
Mon
6
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
0
0
0
0
0
1
0
1
1
0
1
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
9
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.7
ENE
8
0.9
ENE
8
0.9
ENE
8
1
ENE
8
1
ENE
8
0.9
E
12
1.7
E
13
2.1
E
13
2.4
E
14
2.5
E
14
3
ENE
15
3.5
ENE
15
3.5
ENE
15
4
ENE
15
4
E
16
5
ENE
16
4.5
ENE
16
5
NE
16
4.5
ENE
16
Wave Graph
Metric surfscale
Energy kJ
106
101
99
99
99
72
108
108
134
137
244
1049
1537
2275
2727
4279
5106
5462
6721
7854
10961
10876
12672
10240
Wind (km/h)
10
NE
15
NNE
20
NNE
20
NNE
15
NNE
20
NE
15
NNE
15
NNE
15
NNE
15
NNE
20
N
20
N
20
N
25
N
20
N
25
NNW
30
N
35
N
40
N
40
N
40
NNW
45
NNW
55
WNW
65
WNW
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
High Tide
8:23AM0.82m
11:21PM0.87m
9:08AM0.80m
11:46PM0.88m
10:00AM0.76m
00:09AM0.89m
Low Tide
3:51PM0.13m
4:39AM0.65m
4:25PM0.18m
5:28AM0.61m
4:59PM0.25m
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
thunderstorm
clear
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
6:52
 mm
2
1
1
1
1
1
2
4
3
2
1
4
10
Temp °C
28
29
30
30
29
28
28
28
28
29
30
29
29
29
26
28
29
29
29
29
28
28
27
27
Feels °C
32
32
32
32
32
30
31
31
31
32
32
31
31
30
28
28
29
28
28
28
26
25
22
21
Swell 1
Height (m)
Direction
Period (s)
0.9
ENE
9
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.7
ENE
8
0.4
SE
10
0.9
ENE
8
1
ENE
8
1
ENE
8
1
ENE
9
1.7
E
13
2.1
E
13
2.4
E
14
2.5
E
14
3
ENE
15
3.5
ENE
15
3.5
ENE
15
4
ENE
15
4
E
16
5
ENE
16
4.5
ENE
16
5
NE
16
4.5
ENE
16
Energy kJ
106
101
99
99
99
72
25
108
134
137
154
1049
1537
2275
2727
4279
5106
5462
6721
7854
10961
10876
12672
10240
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.3
NNE
11
0.4
SE
10
0.4
SE
9
0.4
E
12
0.9
E
12
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.3
SE
10
2.3
N
10
Energy kJ
18
11
11
16
16
25
24
23
22
48
244
34
34
33
33
14
1090
Swell 3
Height (m)
Direction
Period (s)
0.2
WSW
7
0.2
WSW
7
0.2
WSW
7
0.3
SE
8
0.3
NNE
12
0.3
NNE
11
0.2
WSW
7
0.3
NNE
11
0.4
NNE
11
0.4
NNE
10
0.4
SE
9
0.4
SE
9
0.4
SSE
9
0.4
SE
9
0.4
SE
9
0.3
NNE
10
Energy kJ
5
5
5
10
26
24
4
23
38
35
21
22
33
22
23
19
Wind waves
Height (m)
Direction
Period (s)
0.3
N
3
0.5
N
4
0.9
ENE
8
1
N
5
0.3
NNE
10
0.3
NNE
10
1.6
N
6
2
N
7
3
NNW
8
2.4
NW
7
4
WNW
8
Energy kJ
1
6
108
47
19
18
175
342
844
540
1787
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
2
2
2
Distance (km)
2074
2077
2077
2100
1875
1875
1875
1290
1290
1290
1290
1290
1290
1290
1958
1958
1958
1290
1290
1290
1837
1290
1836
1836
Best forecast wave conditions in Guam
Rating
(10 max)
Best forecast wave conditions in Guam
Rating
(10 max)
Header Global
Rating
(10 max)
6
9
9
9
9
7
9
5
5
8
7
6
5
5
8
5
5
5
9
9
9
8
7
5
  • 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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