Threes Surf Break

Lat Long: 13.26° N 144.66° E

GUAM

Threes 48 hour detailed Surf Forecast

Issued: 3 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Threes sea temperature is
29.2° C
0.2° 

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 (13 Aug):

  • Morning surf: Morning surf (13 Aug, local time) - 7ft (2.1m), 11s period with WNW swell.
  • Afternoon surf: Afternoon surf (13 Aug, local time) - 6.5ft (2.0m), 10s period with WNW swell.
  • Evening surf: Evening surf (13 Aug, local time) - 6ft (1.9m), 10s period with WNW swell.

The current surf forecast for Threes at 6AM is: 2.2m 11s primary swell from a West-northwest direction (forecast issued at 03:00am August 13). An open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (ChST) & DateWave HeightWave Period
Morning (13 Aug)7ft (2.1m)11s
Afternoon (13 Aug)6.5ft (2.0m)10s
Evening (13 Aug)6ft (1.9m)10s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Sat night. Warm (max 29°C on Thu afternoon, min 28°C on Thu morning). Mainly fresh winds.

Thursday
13
Friday
14
Saturday
15
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
1
1
1
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)
2.1
WNW
11
2.1
WNW
11
2.2
WNW
11
2.1
WNW
11
2
WNW
10
2
WNW
10
1.9
WNW
10
1.8
WNW
10
1.7
WNW
10
1.6
WNW
9
1.6
WNW
9
1.6
W
9
1.6
WNW
9
1.7
WNW
9
1.7
WNW
10
1.6
WNW
10
1.7
WNW
10
1.7
WNW
9
1.6
WNW
9
1.6
WNW
9
1.5
W
9
1.8
WNW
10
1.8
WNW
10
1.8
W
9
Wave Graph
Metric surfscale
Energy kJ
961
1104
1081
1008
826
810
698
591
540
451
451
430
442
528
586
502
540
517
442
422
348
653
640
577
Wind (km/h)
20
W
20
WSW
20
SW
20
WSW
25
SW
25
WSW
20
WSW
20
W
20
WSW
20
WSW
20
W
20
W
25
W
20
W
20
W
15
W
20
W
20
W
20
WSW
20
WSW
20
WSW
25
WSW
20
WSW
25
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
6:56AM0.76m
9:07PM0.76m
7:53AM0.74m
9:37PM0.75m
8:49AM0.72m
Low Tide
1:47AM0.43m
2:04PM-0.15m
2:32AM0.37m
2:46PM-0.09m
3:16AM0.30m
3:25PM0.00m
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
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cloud
thunderstorm
<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>
6:44
6:43
6:43
 mm
2
Temp °C
28
29
29
28
28
29
29
29
28
29
28
28
29
29
28
29
28
28
28
29
29
29
29
29
Feels °C
29
30
30
30
29
30
31
31
29
30
29
29
30
30
30
32
30
30
30
31
31
30
31
30
  • 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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