Surf Forecast Surf Report
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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 Tuesday 18 Mar 2025 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
28.1° C
 (Which is normal for this time of year)

How big are the waves at Boat Basin Lefts today?

The current surf forecast for Boat Basin Lefts at 2PM is: 1.2m 9s primary swell from a East direction and 0.5m 11s secondary swell from a North direction (forecast issued at 09:00am March 18). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (18 Mar)4.5ft (1.3m)9s
Afternoon (18 Mar)4ft (1.2m)9s
Evening (18 Mar)4.5ft (1.3m)9s

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

Hourly12 Days
Guam Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM
Rating
(10 max)
2
1
1
1
2
0
1
2
2
1
1
1
1
1
1
1
2
2
1
1
1
2
3
1
1
1
2
3
2
2
2
2
2
1
1
1
2
2
2
1
2
1
1
1
2
2
2
2
1
0
0
1
2
2
2
2
2
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
E
1.3
E
1.2
E
1.3
E
1.2
E
1.3
E
1.1
E
1.4
E
1.4
E
1.6
E
1.5
E
1.5
E
1.6
E
1.6
E
1.6
E
1.5
E
1.5
E
1.6
E
1.6
E
1.7
E
1.7
E
1.7
E
1.7
E
1.6
E
1.7
E
1.7
E
1.9
E
1.8
E
1.6
E
1.6
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.6
E
1.6
E
1.4
E
1.4
E
1.3
E
1.1
N
1.4
E
1
N
1
N
1.3
E
1.3
E
1.3
E
1.6
E
1.4
E
1.5
E
1.4
E
1.4
E
1.4
E
1.4
E
1.4
E
1.4
E
1.4
E
1.3
E
1.3
E
1.3
E
Period(s) (?)99999999999999999999101010101010101010101010101010101010101013912129999999999999999
Wave
Graph
(?)Metric surfscale
Energy (?)282282235274234274202325325417365359398407417375392444445502513524524464522522654587472472417417415415415463464354354299398340293293287280280417313359318318318318306306311275275270
Wind
(km/h)
15
E
20
E
25
E
20
E
20
E
25
E
25
ESE
20
E
20
ESE
20
ESE
25
ESE
25
E
25
E
25
E
25
E
20
E
20
E
20
E
20
E
25
E
25
E
25
E
20
E
25
ENE
25
ENE
25
E
25
E
20
E
15
E
15
E
20
ESE
20
ESE
20
E
25
ESE
20
ESE
20
ESE
20
E
15
E
20
E
20
E
20
E
25
E
25
E
25
E
20
E
20
E
20
E
20
E
25
E
25
E
25
E
25
E
20
E
20
E
20
E
15
E
20
E
25
ESE
20
ESE
20
ESE
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		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		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)
9:32AM
0.83
11:05PM
0.79
9:51AM
0.82
12:00AM
0.76
10:12AM
0.81
1:08AM
0.73
10:37AM
0.79
2:36AM
0.73
11:09AM
0.78
4:15AM
0.74
11:56AM
0.77
5:17AM
0.78
1:14PM
0.77
5:53AM
0.82
2:52PM
0.77
Low Tide
/ height (m)
4:20PM
0.26
4:23AM
0.55
4:58PM
0.25
4:55AM
0.60
5:40PM
0.24
5:29AM
0.65
6:30PM
0.24
6:17AM
0.69
7:30PM
0.24
7:41AM
0.72
8:37PM
0.23
9:31AM
0.72
9:43PM
0.21
10:48AM
0.69
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Sunrise6:26-------6:26-------6:24-------6:24-------6:24-------6:22-------6:22-------6:22---
Sunset---6:30-------6:30-------6:30-------6:30-------6:30-------6:31-------6:31-------6:31
clearclearclearclearclearthunderstorm clearclearthunderstorm thunderstorm thunderstorm thunderstorm rain showersclearpart cloudpart cloudpart cloudclearthunderstorm rain showersrain showersclearclearpart cloudpart cloudclearclearpart cloudclearclearclearclearclearclearpart cloudpart cloudclearclearrain showerspart cloudclearpart cloudclearclearclearclearclearrain showersrain showerspart cloudpart cloudclearclearclearclearclearpart cloudclearpart cloudthunderstorm
Rain (mm)
-----2--11211-----121-----------------1--------11----------1
Temp. °C262828282727272727282828272727272728282827272726272828282727272626272828272727262728282827272626272828282727262627282929
Feels °C (?)282827292928282929292929272828282829292827272826282727292929282626262829282928272828282828292727272827282829272829283030
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

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

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