Threes surfForecast / Guam / Guam

information circle48hr Weather and Surf, issued 3 pm Saturday 16 May 2026 ChST
Forecast update in hr  min  s Forecast update imminent
Threes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Threes sea temperature is
29.0° C
(Which is normal for this time of year)

How big are the waves at Threes today?

The current surf forecast for Threes at 7PM is: 0.2m 10s primary swell from a North direction (forecast issued at 03:00pm May 16). An open ocean swell of 0.3m 11s is not directed at the surf break, a second open ocean swell of 1.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (16 May)--
Afternoon (16 May)0.5ft (0.2m)10s
Evening (16 May)0.5ft (0.2m)10s

Table - waves today at Threes. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 8mm), mostly falling on Mon night. Warm (max 28°C on Sat afternoon, min 26°C on Mon night). Mainly fresh winds.

Sat
16
Sunday
17
Monday
18
Tue
19
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
1 AM
4 AM
7 AM
10 AM
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 MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.2
N
11
0.2
N
10
0.2
N
10
0.2
N
10
0.2
N
10
0.2
N
10
0.2
N
10
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
8
0.2
N
8
0.2
N
9
0.1
N
9
0.1
N
9
0.1
NE
9
0.1
NE
9
0.2
NNE
9
Wave Graph
Metric surfscale
Energy kJ
9
8
8
8
8
8
8
7
7
6
6
6
6
6
6
6
6
6
6
2
2
3
3
8
Wind (km/h)
25
E
30
E
25
E
30
ENE
25
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
25
ENE
30
ENE
30
ENE
30
E
30
E
30
E
30
E
25
E
25
E
25
E
30
E
25
ESE
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
off
off
off
off
off
High Tide
8:13PM0.75m
6:34AM0.78m
9:12PM0.78m
7:13AM0.79m
10:10PM0.79m
7:56AM0.78m
Low Tide
1:06PM-0.15m
1:20AM0.43m
1:51PM-0.22m
2:11AM0.48m
2:40PM-0.25m
3:04AM0.52m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:39
6:39
6:39
1
1
3
2
1
Temp °C
28
28
28
28
27
27
27
28
28
28
28
27
27
27
27
28
28
28
28
27
26
26
26
26
28
28
28
29
27
27
27
27
27
28
28
27
27
27
26
28
28
28
28
27
26
27
26
27
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
11
0.4
SE
11
0.3
SE
11
0.3
SE
11
0.2
N
10
0.2
N
10
0.2
N
10
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
9
0.2
N
8
0.2
N
8
0.2
N
9
0.1
N
9
0.1
N
7
0.1
NE
9
0.1
NE
9
0.2
NNE
9
Energy kJ
19
30
19
18
8
8
8
7
7
6
6
6
6
6
6
6
6
6
6
2
1
3
3
8
Swell 2
Height (m)
Direction
Period (s)
0.2
N
11
0.2
N
10
0.2
N
10
0.2
N
10
0.1
N
6
0.1
S
9
0.1
S
9
0.1
S
9
0.1
N
8
0.1
N
7
0.1
N
9
0.1
N
7
Energy kJ
9
8
8
8
1
2
2
2
1
1
2
1
Swell 3
Height (m)
Direction
Period (s)
0.1
S
9
0.1
S
9
0.1
S
9
0.1
S
8
0.1
S
7
Energy kJ
2
2
2
1
1
Wind waves
Height (m)
Direction
Period (s)
1.5
E
9
1.7
E
9
1.8
E
8
1.9
E
8
2
E
9
2.1
E
9
2.2
E
9
2.2
E
9
2.3
E
9
2.3
E
9
2.3
E
9
2.3
E
9
2.2
E
9
2.2
E
10
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.1
E
9
2.1
E
9
2.2
E
9
2.2
E
9
2.1
E
9
Energy kJ
351
440
388
501
613
723
810
805
880
899
918
918
840
858
840
822
822
805
810
723
723
805
803
748
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
1886
2056
2056
1840
1810
1810
1810
1810
2056
1891
1840
1810
1810
1810
1810
1810
1810
1889
1810
1810
1810
1810
1810
1810
Best forecast wave conditions in Guam
Rating
(10 max)
Best forecast wave conditions in Guam
Rating
(10 max)
Header Global
Rating
(10 max)
5
5
4
5
5
6
5
5
5
5
6
9
9
7
4
4
5
6
7
4
5
4
4
4
  • 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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