Threes surfForecast / Guam / Guam

information circle48hr Weather and Surf, issued 9 pm Sunday 31 Aug 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
29.8° C
(Which is slightly warmer than usual)


How big are the waves at Threes today?

The current surf forecast for Threes at 10PM is: 0.1m 8s primary swell from a North direction (forecast issued at 09:00pm August 31). An open ocean swell of 1.1m 7s is not directed at the surf break, a second open ocean swell of 1.0m 8s is not directed at the surf break, a second open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (ChST) & DateWave HeightWave Period
Morning (31 Aug)--
Afternoon (31 Aug)--
Evening (31 Aug)0.5ft (0.1m)8s

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

Updates in  hr  min  s Forecast update imminent
Sun
31
Monday
01
Tuesday
02
Wednesday
03
7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM
Rating
(10 max)
0
0
0
1
1
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 (?)
0.2
WSW
0.1
N
0.1
N
0.8
SW
0.8
SW
0.1
N
0.6
SW
0.6
SW
0.6
SW
0.6
WSW
0.5
SW
0.5
SW
0.4
WSW
0.4
WSW
0.4
WSW
0.4
WSW
0.3
N
0.4
WSW
0.4
WSW
0.4
WSW
0.4
WSW
0.4
WSW
0.4
WSW
0.3
WSW
Period(s) (?)7887787777777777127777777
Wave
Graph
(?)Metric surfscale
Energy (?)61160601383838312323182918184429291616242415
Wind
(km/h)
20
SSE
15
SSE
15
SSE
10
SE
10
SE
10
ESE
10
ESE
10
ENE
15
NE
15
NE
20
NE
25
NE
20
ENE
20
ENE
20
E
25
E
15
SE
15
SE
10
SE
10
E
10
ESE
15
SE
20
SE
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffcross-
off
cross-
off
offoffoffcross-
off
cross-
off
High Tide
/ height (m)
12:07AM
0.62
4:11PM
0.57
1:02AM
0.61
5:20PM
0.61
2:14AM
0.61
Low Tide
/ height (m)
6:44PM
0.48
8:06AM
0.11
8:15PM
0.52
9:13AM
0.08
9:52PM
0.53
10:14AM
0.03
Sun
31
Monday
01
Tuesday
02
Wednesday
03
Sunrise----6:09-------6:09-------6:09---
Sunset-------6:32-------6:31-------6:30
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
light rain
light rain
cloud
thunderstorm
part cloud
Rain (mm)
-------11111-225361331-1-
Temp. °C292929282829292929282828282928262525242426272829
Feels °C (?)313232313132323232303029303130262728272729292930
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Guam

  1. weather stationWind Update Continuing clean conditions at Threes (calm at Windward Hills wx 15 km from Threes). No surfable waves

    Threes
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Actual: 41 min ago

0 km/h
N
Clean
Please reload the page to see if there are any updates.

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