Threes Surf Break

Lat Long: 13.26° N 144.66° E

GUAM

Threes 48 hour detailed Surf Forecast

Issued: 3 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Threes sea temperature is
28.7° C
0.6° 

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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 3.5ft (1.1m), 7s period with WSW swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 3.5ft (1.0m), 7s period with WSW swell.
  • Evening surf: Evening surf (18 Jul, local time) - 3ft (0.9m), 6s period with WSW swell.

The current surf forecast for Threes at 6AM is: 1.1m 7s primary swell from a West-southwest direction (forecast issued at 03:00am July 18). An open ocean swell of 0.5m 9s is not directed at the surf break, a second open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (ChST) & DateWave HeightWave Period
Morning (18 Jul)3.5ft (1.1m)7s
Afternoon (18 Jul)3.5ft (1.0m)7s
Evening (18 Jul)3ft (0.9m)6s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Sun morning. Warm (max 29°C on Sat morning, min 27°C on Sun morning). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
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
1
1
1
1
1
1
1
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)
1.1
WSW
7
1.1
WSW
7
1.1
WSW
7
1.1
WSW
7
1
WSW
7
1
WSW
7
1
WSW
7
0.9
WSW
6
0.8
WSW
6
0.9
WSW
6
0.7
WSW
6
0.7
WSW
6
0.7
W
6
1.1
SW
6
1.1
SW
7
1.1
SW
7
1.1
SW
7
1.1
SW
7
1
SW
7
1.1
SW
7
1.1
SW
7
1.1
SW
7
1
SW
7
0.9
SW
7
Wave Graph
Metric surfscale
Energy kJ
102
99
99
102
85
83
83
59
53
57
40
40
39
94
99
99
99
102
93
109
109
112
102
75
Wind (km/h)
20
WSW
20
WSW
15
WSW
20
WSW
20
SW
20
SW
20
SW
20
SW
15
WSW
15
WSW
10
SW
10
SSW
15
SSW
15
SSW
15
SSW
15
SSW
10
SSW
10
S
15
S
15
SSE
15
S
10
S
10
SSE
10
SE
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
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:59PM0.77m
9:42AM0.68m
11:32PM0.76m
10:46AM0.62m
00:03AM0.74m
11:59AM0.56m
Low Tide
4:33AM0.38m
4:32PM-0.03m
5:27AM0.31m
5:13PM0.08m
6:24AM0.25m
5:55PM0.20m
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
thunderstorm
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:51
 mm
1
2
1
1
1
2
1
1
Temp °C
28
28
28
28
29
29
28
28
28
28
28
27
28
28
28
28
28
28
28
28
28
28
28
28
Feels °C
30
30
31
30
31
31
30
30
30
31
32
30
31
30
30
31
32
32
31
31
30
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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