Threes Surf Break

Lat Long: 13.26° N 144.66° E

GUAM

Threes 48 hour detailed Surf Forecast

Issued: 3 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Threes sea temperature is
29.3° C
0.1° 

Threes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Threes today (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 7ft (2.2m), 11s period with W swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 7ft (2.1m), 11s period with W swell.
  • Evening surf: Evening surf (11 Aug, local time) - 6ft (1.8m), 9s period with W swell.

The current surf forecast for Threes at 8AM is: 1.3m 12s primary swell from a West-northwest direction and 1.6m 8s secondary swell from a West-southwest direction (forecast issued at 03:00am August 11). An open ocean swell of 0.4m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (ChST) & DateWave HeightWave Period
Morning (11 Aug)7ft (2.2m)11s
Afternoon (11 Aug)7ft (2.1m)11s
Evening (11 Aug)6ft (1.8m)9s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Tue morning. Warm (max 29°C on Wed morning, min 28°C on Tue morning). Mainly fresh winds.

Tuesday
11
Wednesday
12
Thursday
13
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
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 Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
WNW
11
1.3
WNW
12
1.3
WNW
12
2.2
W
11
1.3
WNW
11
2.1
W
11
1.9
W
9
1.8
WSW
9
1.9
WSW
9
2.1
W
11
2
WSW
8
2.2
W
8
2.3
W
8
2.2
W
9
2.3
W
10
2.5
WNW
11
2.5
WNW
11
2.5
WNW
10
2.4
WNW
10
2.4
WNW
10
2.4
WNW
11
2.3
WNW
11
2.2
WNW
11
2.1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
492
472
464
1172
401
1027
575
505
560
991
450
634
716
718
963
1349
1348
1299
1152
1152
1268
1189
1051
867
Wind (km/h)
25
W
25
WSW
30
WSW
30
WSW
30
WSW
30
WSW
30
WSW
30
WSW
30
WSW
35
WSW
30
WSW
30
WSW
30
WSW
25
WSW
25
WSW
25
WSW
25
WSW
25
WSW
25
WSW
25
WSW
25
SW
20
SW
20
WSW
20
SW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
4:50AM0.74m
8:01PM0.75m
5:56AM0.75m
8:36PM0.77m
6:56AM0.76m
9:07PM0.76m
Low Tide
00:05AM0.54m
12:30PM-0.18m
00:59AM0.49m
1:19PM-0.18m
1:47AM0.43m
2:04PM-0.15m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:44
6:44
 mm
2
1
1
1
1
1
1
1
1
1
1
Temp °C
28
28
28
28
28
28
28
28
28
28
28
28
29
29
29
29
29
29
28
28
28
29
29
29
Feels °C
30
29
28
28
28
28
28
28
28
27
28
28
29
30
31
31
30
30
29
29
29
31
31
31
  • 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 

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 Threes 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.


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