Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Issued: 3 am 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
28.9° 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 (22 Jul):

  • Morning surf: Morning surf (22 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
  • Afternoon surf: Afternoon surf (22 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
  • Evening surf: Evening surf (22 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.

The current surf forecast for Boat Basin Lefts at 9AM is: 0.4m 9s primary swell from a East-northeast direction (forecast issued at 03:00am July 22). An open ocean swell of 1.1m 7s is not directed at the surf break, a second open ocean swell of 0.4m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (22 Jul)1.5ft (0.4m)9s
Afternoon (22 Jul)1.5ft (0.4m)9s
Evening (22 Jul)1.5ft (0.4m)9s

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


Short Range Forecast

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

Wednesday
22
Thursday
23
Friday
24
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
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
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
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.3
ENE
9
0.3
ENE
9
0.3
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
Wave Graph
Metric surfscale
Energy kJ
27
27
27
27
27
27
27
26
27
27
27
26
26
26
16
16
16
26
26
26
25
25
25
25
Wind (km/h)
10
SW
10
SSW
5
SSW
15
SSW
15
SW
15
SW
10
WSW
5
WNW
5
N
5
NE
0
E
5
NNE
5
NW
10
NW
10
N
10
NNE
10
NNE
5
NNW
5
N
10
NNW
10
NNW
15
N
10
NNE
5
ENE
Wind State
cross
cross-off
cross-off
cross-off
cross
cross
cross-on
glassy
glassy
glassy
glassy
glassy
glassy
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
High Tide
00:54AM0.88m
3:12PM0.67m
1:23AM0.85m
5:00PM0.69m
1:58AM0.83m
6:20PM0.73m
Low Tide
8:22AM0.32m
7:07PM0.61m
9:16AM0.28m
8:04PM0.67m
10:07AM0.24m
9:26PM0.70m
clear
clear
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:51
6:51
 mm
1
1
1
4
2
1
1
Temp °C
28
27
27
29
29
29
28
28
28
27
27
28
29
29
28
28
27
27
27
28
29
29
28
27
Feels °C
32
31
31
32
32
32
32
33
33
31
32
33
34
33
31
32
31
31
31
32
32
32
32
31
  • 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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