Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Issued: 9 pm 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.9° C
0.5° 

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 (28 Jul):

  • Morning surf: Morning surf (28 Jul, local time) - 1ft (0.3m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (28 Jul, local time) - 1.5ft (0.5m), 5s period with NE swell.
  • Evening surf: Evening surf (28 Jul, local time) - 1.5ft (0.5m), 7s period with ENE swell.

The current surf forecast for Boat Basin Lefts at 5AM is: 0.3m 8s primary swell from a East-northeast direction and 0.2m 3s secondary swell from a North-northeast direction (forecast issued at 09:00pm July 27). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (ChST) & DateWave HeightWave Period
Morning (28 Jul)1ft (0.3m)8s
Afternoon (28 Jul)1.5ft (0.5m)5s
Evening (28 Jul)1.5ft (0.5m)7s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Tue night. Warm (max 29°C on Tue morning, min 27°C on Tue night). Wind will be generally light.

Mon
27
Tuesday
28
Wednesday
29
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)
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
Wave
Height (m)
Direction
Period (s)
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.3
ENE
8
0.5
NE
5
0.4
NNE
5
0.5
ENE
7
0.6
NE
6
0.6
ENE
6
0.7
ENE
7
0.7
ENE
7
0.6
ENE
7
0.5
ENE
7
0.5
ENE
7
0.5
E
7
Wave Graph
Metric surfscale
Energy kJ
13
13
13
13
13
13
13
12
8
30
34
28
46
46
41
29
28
25
Wind (km/h)
15
ENE
15
NE
10
ENE
10
NE
10
NE
15
ENE
15
E
10
ENE
10
ENE
10
ENE
5
E
5
SE
5
E
5
S
5
SW
10
WSW
5
WSW
5
SSW
Wind State
cross-off
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
glassy
glassy
cross-on
cross-on
glassy
High Tide
8:18PM0.81m
5:17AM0.83m
8:48PM0.83m
6:06AM0.84m
9:15PM0.85m
Low Tide
00:42AM0.70m
1:06PM0.11m
1:24AM0.68m
1:43PM0.10m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
cloud
part cloud
thunderstorm
thunderstorm
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:49
 mm
2
3
1
2
Temp °C
28
28
28
28
28
29
29
29
28
28
28
27
27
29
29
29
28
28
Feels °C
31
31
32
32
32
32
32
32
32
32
33
32
32
34
34
33
32
33
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Boat Basin Lefts surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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