Boat Basin Lefts Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Issued: 3 pm 23 Oct 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
28.7°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 (23 Oct):

  • Afternoon surf: Afternoon surf (23 Oct, local time) - 3.5ft (1.1m), 13s period with W swell.
  • Evening surf: Evening surf (23 Oct, local time) - 3.5ft (1.1m), 13s period with W swell.

The current surf forecast for Boat Basin Lefts at 7PM is: 1.1m 13s primary swell from a West direction and 1.3m 9s secondary swell from a East-northeast direction (forecast issued at 03:00pm October 23). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (ChST) & DateWave HeightWave Period
Morning (23 Oct)--
Afternoon (23 Oct)3.5ft (1.1m)13s
Evening (23 Oct)3.5ft (1.1m)13s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Sun night. Warm (max 28°C on Fri afternoon, min 27°C on Fri afternoon). Wind will be generally light.

Fri
23
Saturday
24
Sunday
25
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)
2
2
3
3
3
3
3
2
2
2
2
2
3
3
2
2
2
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
W
13
1.1
W
12
1.1
W
13
1.1
WNW
13
1.1
WNW
12
1.1
WNW
13
1.1
WNW
13
1.1
WNW
13
1.1
WNW
13
1.1
WNW
13
1.2
WNW
13
1.2
WNW
13
1.2
WNW
14
1.1
WNW
14
1
WNW
13
0.9
WNW
14
1.3
ENE
9
1.3
ENE
9
1.3
ENE
9
1.3
ENE
9
Wave Graph
Metric surfscale
Energy kJ
414
377
395
418
398
411
424
424
431
431
507
461
512
415
384
326
286
249
244
280
Wind (km/h)
20
ENE
20
NE
15
ENE
10
E
15
ESE
15
ESE
15
ESE
20
E
20
E
20
ENE
15
ENE
15
ENE
15
E
15
E
15
E
20
E
20
E
15
E
15
E
15
E
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:37PM0.86m
6:07AM0.79m
6:00PM0.88m
7:06AM0.84m
6:25PM0.89m
Low Tide
11:08AM0.39m
00:04AM0.39m
11:57AM0.43m
00:39AM0.28m
12:44PM0.48m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
clear
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
6:11
—
—
—
—
—
—
—
6:13
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:57
—
—
—
—
—
—
—
5:57
—
—
—
—
—
—
—
5:57
—
—
 mm
—
—
—
—
—
—
—
—
—
—
1
—
—
—
1
1
—
—
—
2
Temp °C
28
28
27
27
27
27
27
28
28
28
27
27
27
27
27
28
28
28
27
27
Feels °C
29
29
30
30
30
30
30
30
29
30
30
30
30
30
30
30
30
30
30
30
  • 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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