Threes Surf Break

Lat Long: 13.26° N 144.66° E

GUAM

Threes 48 hour detailed Surf Forecast

Issued: 9 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Threes sea temperature is
29.7°C
0.4° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 8ft (2.5m), 9s period with W swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 7ft (2.1m), 9s period with W swell.
  • Evening surf: Evening surf (04 Sep, local time) - 6ft (1.9m), 9s period with W swell.

The current surf forecast for Threes at 5AM is: 2.5m 9s primary swell from a West direction and 0.3m 9s secondary swell from a Northeast direction (forecast issued at 09:00pm September 03). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (ChST) & DateWave HeightWave Period
Morning (04 Sep)8ft (2.5m)9s
Afternoon (04 Sep)7ft (2.1m)9s
Evening (04 Sep)6ft (1.9m)9s

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


Short Range Forecast

Heavy rain (total 36mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 27°C on Thu night). Winds decreasing (fresh winds from the WSW on Thu night, calm by Sat night).

Thu
3
Friday
4
Saturday
5
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
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.2
W
8
1.7
WNW
11
2.5
W
9
2.5
W
9
2.5
W
9
2.3
W
9
2.1
W
9
2
W
9
2
W
9
1.9
W
9
1.8
W
9
1.7
W
9
1.7
W
9
1.6
W
9
1.6
W
9
1.5
W
9
1.4
W
8
1.3
W
8
Wave Graph
Metric surfscale
Energy kJ
619
656
1075
1153
1060
878
716
649
621
562
505
445
455
412
402
339
277
234
Wind (km/h)
30
SW
35
WSW
35
WSW
30
WSW
30
WSW
25
WSW
30
WSW
25
WSW
25
W
20
W
20
WSW
20
W
15
W
15
W
15
W
15
W
10
WNW
5
NW
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
on
cross-on
on
on
on
glassy
High Tide
11:01PM0.70m
2:21PM0.60m
11:45PM0.69m
4:09PM0.63m
Low Tide
5:24PM0.44m
6:39AM0.00m
6:25PM0.52m
7:52AM-0.02m
8:05PM0.56m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
 mm
3
3
3
1
1
2
1
9
Temp °C
28
27
28
28
28
29
29
29
29
29
28
28
28
28
29
29
29
28
Feels °C
28
25
27
27
27
29
29
29
30
31
29
30
30
30
32
31
33
33
  • 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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