Surf Forecast Surf Report

Threes surfForecast / Guam / Guam

information circle12 Day Weather and Surf, issued 9 pm Friday 23 May 2025 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
29.2° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Threes this week:

The most powerful waves expected at Threes in the next 12 days are 0.2m 12s and forecast to arrive on Wednesday (May 28) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 9s period and expected on Saturday (May 24) at 10AM.

Wave TypeTime (ChST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Wed 28th May)0.5ft (0.2m) 12s

Table - best surf conditions forecast for Threes over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wed
04
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
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
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
ENE
1.1
ENE
1
ENE
0.9
ENE
0.9
ENE
0.9
ENE
0.1
NW
0.8
ENE
0.8
ENE
0.7
ENE
0.7
ENE
0.6
ENE
0.1
N
0.2
N
0.2
NNE
0.7
ENE
0.8
ESE
0.7
ESE
0.2
NNE
0.1
NW
0.2
NNW
0.2
N
0.1
N
0.1
N
0.1
N
0.2
N
0.2
N
1.1
E
1.1
E
1.1
E
1
E
0.4
WNW
0.5
WNW
0.5
WNW
0.5
WNW
0.5
WNW
Period(s) (?)99998810109999812121099107710988711999912111099
Wave
Graph
(?)Metric surfscale
Energy (?)00000040000011214000102571114900005668564748
Wind
(km/h)
10
E
15
E
15
ESE
10
E
15
ESE
15
ESE
10
E
10
ESE
5
ESE
5
NE
10
E
15
E
15
ESE
15
ESE
15
E
15
E
20
E
15
E
15
E
15
E
20
E
20
ESE
10
E
10
ESE
5
E
5
ESE
5
SE
5
SE
5
SSE
5
SW
5
ESE
10
SE
5
S
5
ESE
10
ESE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoffoffoffoffoffoffcross-
off
offcross-
off
offoffoffcross-
off
offoffcross-
off
cross-
off
cross-
off
offoffoffoffoffglassglassglassglassglasscross-
off
cross-
off
glassoffcross-
off
High Tide
/ height (m)
4:30AM
0.75
5:56PM
0.64
5:04AM
0.77
7:05PM
0.70
5:39AM
0.78
8:09PM
0.75
6:17AM
0.79
9:07PM
0.78
6:57AM
0.79
10:04PM
0.79
7:39AM
0.77
10:59PM
0.78
8:25AM
0.75
11:54PM
0.76
9:14AM
0.70
12:46AM
0.74
10:11AM
0.65
1:33AM
0.73
11:21AM
0.58
2:16AM
0.72
12:48PM
0.53
2:53AM
0.71
2:26PM
0.50
Low Tide
/ height (m)
10:12PM
0.25
11:22AM
0.05
11:12PM
0.33
12:08PM
-0.07
12:10AM
0.40
12:54PM
-0.17
1:06AM
0.46
1:40PM
-0.23
2:01AM
0.51
2:28PM
-0.26
2:54AM
0.54
3:17PM
-0.25
3:50AM
0.55
4:07PM
-0.21
4:50AM
0.55
4:58PM
-0.14
5:57AM
0.52
5:49PM
-0.06
7:11AM
0.48
6:41PM
0.03
8:22AM
0.41
7:34PM
0.12
9:24AM
0.33
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wed
04
Sunrise-5:54--5:54--5:52--5:52--5:52--5:52--5:52--5:52--5:52--5:52--5:52--5:52-
Sunset--6:42--6:42--6:42--6:43--6:43--6:43--6:44--6:44--6:44--6:45--6:45--6:45
part cloudclearclearpart cloudpart cloudpart cloudpart cloudcloudpart cloudpart cloudrain showersthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm rain showersclearthunderstorm rain showersclearthunderstorm clearclearclearclearpart cloudrain showerspart cloudpart cloudthunderstorm clearpart cloudclearclearclear
Rain (mm)
----------1344211-11-3-----1--1-----
Temp. °C282928282929282828282929282829282829282929282929282828282828282828282829
Feels °C (?)303130323132313131323232313131303031303231303232313232323232323131323132

Short Range Forecast: Mostly dry. Warm (max 29°C on Sat morning, min 28°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 16mm), heaviest on Tue afternoon. Warm (max 29°C on Tue morning, min 27°C on Mon night). Wind will be generally light.

Days 6-9 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 29°C on Fri morning, min 28°C on Thu night). Wind will be generally light.

Long Range Forecast: Light rain (total 2mm), mostly falling on Sun night. Warm (max 29°C on Wed afternoon, min 27°C on Sun night). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
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Information about the Threes Surf forecast

The above surf forecast table for Threes provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Threes can be found by selecting the local surf guide option on the grey menu. Our Threes surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Threes) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Threes may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Threes is 25 km (16 miles) from Agana. If you plan a holiday in Guam, look for hotels and other accommodation in Agana. Agana has rooms for a wide range of budgets as well as car hire and transport links.

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