Boat Basin Lefts Surf Break
GUAM

Boat Basin Lefts 48 hour detailed Surf Forecast

Lat Long: 13.48° N 144.75° E

Issued: 3 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Boat Basin Lefts sea temperature is
29.6° C

Normal for this time of year

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 (07 Jul):

  • Morning surf: Morning surf (07 Jul, local time) - 8ft (2.5m), 11s period with W swell.
  • Afternoon surf: Afternoon surf (07 Jul, local time) - 8ft (2.4m), 11s period with W swell.
  • Evening surf: Evening surf (07 Jul, local time) - 7.5ft (2.3m), 12s period with WNW swell.

The current surf forecast for Boat Basin Lefts at 9AM is: 2.5m 11s primary swell from a West direction and 1.6m 12s secondary swell from a West-northwest direction (forecast issued at 03:00am July 07). An open ocean swell of 3.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (07 Jul)8ft (2.5m)11s
Afternoon (07 Jul)8ft (2.4m)11s
Evening (07 Jul)7.5ft (2.3m)12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 22mm), heaviest during Tue night. Warm (max 29°C on Wed morning, min 26°C on Wed night). Winds decreasing (strong winds from the S on Tue morning, calm by Thu morning).

Tuesday
7
Wednesday
8
Thursday
9
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
1
1
1
2
2
2
3
3
3
2
3
2
2
2
4
4
4
4
4
3
2
3
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)
1.8
NW
12
1.3
NW
12
3.5
W
11
2.3
W
11
2.5
W
11
2.4
WNW
11
2.3
WNW
12
2.3
WNW
12
2.1
W
12
2
W
12
2
W
12
2
W
12
2
W
12
2
W
12
2
W
12
2
W
12
1.9
WNW
13
1.8
WNW
13
1.8
WNW
13
1.8
WNW
13
1.8
WNW
13
1.9
WNW
13
1.8
WNW
14
2
W
14
Wave Graph
Metric surfscale
Energy kJ
892
465
2539
1212
1625
1338
1343
1343
1206
1117
1155
1155
1194
1214
1234
1275
1174
1058
1092
1162
1162
1327
1233
1531
Wind (km/h)
50
S
50
S
45
S
40
S
35
S
35
S
30
S
25
S
20
S
20
S
20
SSE
25
SSE
25
S
30
SSE
30
S
25
S
15
S
5
SSW
5
SE
5
SE
5
NNW
10
NNW
10
NNE
15
NNE
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
glassy
off
glassy
cross-on
cross-on
cross
High Tide
00:33AM0.89m
12:23PM0.69m
1:00AM0.90m
2:01PM0.67m
1:31AM0.90m
3:50PM0.70m
Low Tide
7:12AM0.47m
6:15PM0.42m
8:06AM0.38m
7:03PM0.52m
9:00AM0.28m
8:06PM0.61m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
cloud
cloud
cloud
thunderstorm
part cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
 mm
3
5
4
1
1
1
3
4
4
4
2
1
1
Temp °C
28
27
27
28
28
28
27
27
27
27
27
28
29
28
27
26
26
26
26
27
28
29
28
27
Feels °C
25
23
25
27
27
28
27
28
29
29
29
28
30
28
27
26
28
30
30
31
32
32
31
29
Swell 1
Height (m)
Direction
Period (s)
1.8
NW
12
1.3
NW
12
3.5
W
11
2.3
W
11
2.5
W
11
2.4
WNW
11
2.3
WNW
12
2.3
WNW
12
2.1
W
12
2.1
SW
10
2.1
SW
10
2
W
12
2
W
12
2
W
12
2
W
12
2
W
12
2
SW
10
1.8
WNW
13
1.8
SW
10
1.8
WNW
13
2
WSW
10
1.9
WNW
13
1.9
WSW
11
2
W
14
Energy kJ
892
465
2539
1212
1625
1338
1343
1343
1206
845
815
1155
1194
1214
1234
1275
784
1058
667
1162
809
1327
862
1531
Swell 2
Height (m)
Direction
Period (s)
0.4
ENE
9
0.5
NE
9
0.4
ENE
8
1.6
WNW
12
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
2
W
12
2
W
12
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
1.9
WNW
13
1.8
SW
10
1.8
WNW
13
1.9
SW
10
1.8
WNW
13
1.8
WSW
11
1.8
WNW
14
1.7
WSW
12
Energy kJ
32
40
24
746
22
21
20
20
19
1117
1155
33
33
34
34
32
1174
614
1092
692
1162
742
1233
821
Swell 3
Height (m)
Direction
Period (s)
0.3
NNE
10
0.5
ENE
9
0.2
N
11
0.3
ENE
8
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.4
ENE
9
0.1
N
9
0.3
ENE
9
0.3
ENE
9
0.3
ENE
9
0.3
ENE
9
0.4
SE
9
0.5
SE
7
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.4
SE
9
0.4
ENE
9
Energy kJ
20
43
9
14
2
2
2
2
2
2
25
2
16
16
16
16
31
23
42
41
41
42
31
25
Wind waves
Height (m)
Direction
Period (s)
5
SW
10
5
SW
10
3
S
9
3.5
S
9
3
S
9
3
SSW
9
3
SSW
9
2.5
SSW
10
2.5
SSW
10
1.2
SE
9
1.1
SE
9
2.4
SSW
10
2.4
SSW
10
2.3
SSW
10
2.2
SSW
10
2.1
SSW
10
Energy kJ
4250
4514
1703
1759
1622
1568
1403
1310
1163
225
194
1064
1086
1003
924
904
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
3
2
3
3
3
2
2
2
1
2
2
4
4
4
4
4
1
2
2
Distance (km)
1836
1836
1836
1836
1864
1864
1905
1858
1836
1836
1836
1836
1885
1905
1866
1836
0
0
0
0
0
11
1836
1836
Best forecast wave conditions in Guam
Rating
(10 max)
4
4
4
4
4
4
Best forecast wave conditions in Guam
Rating
(10 max)
4
4
4
4
4
4
Header Global
Rating
(10 max)
9
8
8
8
7
6
7
5
5
7
9
9
9
8
7
6
8
9
9
8
7
6
6
6
  • 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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