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Surf Forecasts:

Boat Basin Lefts surf break

Boat Basin Lefts surfForecast / Guam / Guam

information circle48hr Weather and Surf, issued 9 am Monday 12 Jan 2026 ChST
Forecast update in hr  min  s Forecast update imminent
Boat Basin Lefts surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Boat Basin Lefts sea temperature is
28.4° C
 (Which is slightly warmer than usual)

How big are the waves at Boat Basin Lefts today?

The current surf forecast for Boat Basin Lefts at 12PM is: 1.6m 9s primary swell from a East direction and 0.7m 10s secondary swell from a North direction, 0.4m 9s secondary swell from a Northwest direction (forecast issued at 09:00am January 12). The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (12 Jan)5.5ft (1.7m)8s
Afternoon (12 Jan)5ft (1.6m)9s
Evening (12 Jan)6ft (1.8m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
12
Tuesday
13
Wednesday
14
Thu
15
7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM
Rating
(10 max)
2
1
1
1
1
2
1
1
1
1
1
2
2
2
3
3
2
2
2
1
2
2
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
E
1.6
E
1.6
E
1.7
E
1.8
E
1.8
E
1.8
E
1.8
E
1.8
E
1.7
E
1.8
E
1.7
E
1.8
E
1.9
E
1.4
NNW
1.6
NNW
1.5
NNW
2
E
2
E
1.9
E
1.8
E
1.7
E
1.6
E
1.5
E
Period(s) (?)889998889998881312129999999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)415368377425476465465472483442482368408466690703635650627550503449398349
Wind
(km/h)
25
E
25
ENE
25
E
25
E
25
E
25
ENE
25
ENE
25
ENE
25
ENE
30
E
30
E
20
ENE
20
E
20
E
25
ENE
20
ENE
30
ENE
30
E
30
E
25
E
25
E
20
E
20
E
20
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
1:50PM
0.85
5:27AM
0.68
2:23PM
0.83
6:40AM
0.73
3:04PM
0.82
Low Tide
/ height (m)
7:18AM
0.60
9:44PM
0.30
8:19AM
0.66
10:32PM
0.24
9:46AM
0.70
11:17PM
0.19
Monday
12
Tuesday
13
Wednesday
14
Thu
15
Sunrise6:47-------6:47-------6:47-------
Sunset---6:09-------6:10-------6:10----
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
light rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
Rain (mm)
2211--2--1346731112221-1
Temp. °C272828282727272727272626262526262727272727272726
Feels °C (?)282928282728272727262527282726272727272728292928
  • 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

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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.

View detailed surf forecast for Boat Basin Lefts at:
surf-forecast.com

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