Threes surfForecast / Guam / Guam

information circle48hr Weather and Surf, issued 3 am Friday 29 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
28.7° C
(Which is normal for this time of year)

How big are the waves at Threes today (29 May):

  • Morning surf: Morning surf (29 May, local time) - 5ft (1.6m), 10s period with SW swell.
  • Afternoon surf: Afternoon surf (29 May, local time) - 5ft (1.6m), 10s period with SW swell.
  • Evening surf: Evening surf (29 May, local time) - 4.5ft (1.3m), 9s period with WSW swell.

The current surf forecast for Threes at 8AM is: 1.6m 10s primary swell from a Southwest direction and 0.5m 12s secondary swell from a West-southwest direction (forecast issued at 03:00am May 29). An open ocean swell of 1.3m 9s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.

Time (ChST) & DateWave HeightWave Period
Morning (29 May)5ft (1.6m)10s
Afternoon (29 May)5ft (1.6m)10s
Evening (29 May)4.5ft (1.3m)9s

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 6mm), mostly falling on Fri night. Warm (max 28°C on Fri morning, min 27°C on Fri night). Wind will be generally light.

Friday
29
Saturday
30
Sunday
31
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)
3
3
3
2
2
3
2
2
2
2
1
1
1
1
1
1
1
1
2
2
2
2
2
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
10
1.6
SW
10
1.6
SW
10
1.7
SW
10
1.6
SW
10
1.6
SW
10
1.4
SW
9
1.3
WSW
9
1.2
WSW
9
1.1
SW
8
0.7
WSW
8
0.8
SW
8
0.7
WSW
8
0.8
W
10
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
10
0.9
W
9
1
W
10
0.8
W
10
Wave Graph
Metric surfscale
Energy kJ
489
489
456
557
507
461
353
270
211
162
73
78
72
117
106
103
101
115
118
104
113
142
202
133
Wind (km/h)
20
ESE
25
ESE
25
ESE
25
ESE
25
ESE
25
SE
20
SE
20
ESE
20
ESE
20
ESE
20
ESE
20
SE
15
ESE
15
SSE
10
ESE
15
ESE
15
E
15
E
15
E
15
E
15
ESE
15
ESE
15
E
20
E
off
off
off
off
off
off
off
off
off
off
off
off
off
cross-off
off
off
off
cross-off
off
off
off
off
off
cross-off
High Tide
5:33AM0.71m
7:58PM0.66m
6:00AM0.70m
8:42PM0.68m
6:28AM0.69m
9:21PM0.69m
Low Tide
00:04AM0.41m
12:47PM-0.03m
00:50AM0.45m
1:21PM-0.06m
1:32AM0.48m
1:53PM-0.08m
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:44
6:44
1
1
2
1
2
1
1
1
Temp °C
28
28
28
28
28
28
28
28
27
27
27
28
28
27
27
27
27
27
27
27
28
28
28
27
31
30
30
29
29
29
31
31
29
29
29
30
30
29
30
30
30
29
29
29
31
31
31
29
Swell 1
Height (m)
Direction
Period (s)
1.6
SW
10
1.6
SW
10
1.6
SW
10
1.7
SW
10
1.6
SW
10
1.6
SW
10
1.4
SW
9
1.3
WSW
9
1.2
WSW
9
1.1
SW
8
0.7
WSW
8
0.8
SW
8
1.1
E
10
1.1
E
10
1
E
10
1
E
10
1
E
10
1
E
10
1
E
10
1
E
10
1
E
10
1
E
10
1
W
10
0.8
W
10
Energy kJ
489
489
456
557
507
461
353
270
211
162
73
78
239
242
196
196
192
194
194
190
190
190
202
118
Swell 2
Height (m)
Direction
Period (s)
0.4
NNE
12
0.4
NNE
12
0.5
WSW
12
0.4
NNE
11
0.4
NNE
11
0.4
NNE
11
0.4
NNE
11
0.4
NNE
11
0.4
NNE
11
0.4
NNE
11
0.7
SW
8
0.5
W
9
0.7
WSW
8
0.8
W
10
0.8
W
9
0.8
SW
8
0.8
SW
8
0.9
SW
8
0.9
SW
8
0.9
SW
8
0.9
SW
8
0.9
W
9
1
E
10
0.7
WNW
11
Energy kJ
56
56
82
51
49
47
47
47
46
46
63
43
72
117
106
93
95
115
118
100
98
142
186
133
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
12
0.4
SE
12
0.4
NNE
12
0.4
SE
11
0.4
SE
11
0.3
SE
11
0.4
SE
10
0.4
SE
10
0.3
SE
11
0.3
SE
11
0.4
NNE
11
0.5
W
8
0.6
SW
8
0.7
SW
8
0.7
SW
8
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
9
0.8
W
10
0.8
SW
8
0.7
SW
8
0.7
SW
8
Energy kJ
35
34
55
29
29
18
28
28
18
18
46
33
51
61
63
103
101
99
97
104
113
78
65
64
Wind waves
Height (m)
Direction
Period (s)
1.2
E
9
1.3
E
8
1.3
E
8
1.3
E
9
1.3
E
10
1.3
E
10
1.2
E
10
1.2
E
10
1.2
E
10
1.2
E
10
1.2
E
10
1.2
E
10
1
E
10
Energy kJ
214
241
241
247
313
326
279
279
279
284
284
284
186
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
2
2
3
2
2
2
2
1
1
1
1
1
1
1
1
2
2
2
2
2
1
Distance (km)
0
0
0
14
26
0
0
0
0
0
0
0
0
0
0
0
0
13
0
0
0
0
0
1270
Best forecast wave conditions in Guam
Rating
(10 max)
3
3
3
3
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Guam
Rating
(10 max)
3
3
3
3
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
9
7
7
7
5
6
5
5
5
4
5
5
5
5
5
5
6
8
7
7
7
7
7
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

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