Surf Forecast Surf Report
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Surf Forecasts
Umatac surf break

Umatac surfForecast / Guam / Guam

information circle48hr Weather and Surf, issued 9 am Tuesday 18 Mar 2025 ChST
Forecast update in hr  min  s Forecast update imminent
Umatac surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Umatac sea temperature is
28.2° C
 (Which is slightly warmer than usual)

How big are the waves at Umatac today?

The current surf forecast for Umatac at 1PM is: 0.5m 11s primary swell from a North direction (forecast issued at 09:00am March 18). An open ocean swell of 1.4m 9s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (ChST) & DateWave HeightWave Period
Morning (18 Mar)1.5ft (0.5m)12s
Afternoon (18 Mar)1.5ft (0.4m)11s
Evening (18 Mar)1.5ft (0.5m)13s

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

Hourly12 Days
Guam Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM
Rating
(10 max)
0
1
1
0
0
1
0
0
1
0
1
1
0
0
0
2
2
1
2
1
0
0
0
0
0
1
1
1
1
2
2
1
1
1
1
1
0
1
1
0
0
2
0
1
1
1
1
0
1
1
1
1
0
0
0
1
1
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
N
0.5
N
0.5
N
0.4
N
0.5
N
0.5
N
0.4
N
0.4
N
0.5
N
0.4
N
0.6
NNW
0.8
NNW
1.1
NW
1.2
NNW
1.2
NW
1.2
NW
1.1
NW
1.1
NW
1
NW
0.9
NNW
0.9
NNW
0.9
NW
0.8
NNW
0.9
NW
0.9
NNW
0.5
N
0.5
N
0.5
N
0.6
NNW
1
NNW
1.1
NNW
1
NNW
1
NNW
1
NNW
0.9
NNW
0.9
NNW
0.8
NNW
0.8
NNW
0.8
N
0.7
N
0.6
N
1.1
N
0.8
N
1
N
1
N
1
N
0.9
N
0.7
N
0.7
N
0.8
N
0.8
N
0.8
N
0.7
N
0.7
N
0.7
N
0.7
N
0.5
N
0.7
N
0.6
N
0.6
N
Period(s) (?)121211111113131313121312121111111010101010101099131312121111101010999912131312121211111110111212111111111113131113
Wave
Graph
(?)Metric surfscale
Energy (?)47686337578553528049111187314329347334248239200175171137115120138928874109230256190186179136133103102184166123347180268246237192981081771741631211191161168916884123
Wind
(km/h)
20
E
20
E
25
E
20
E
20
E
25
E
25
ESE
25
E
25
ESE
25
ESE
25
E
25
E
25
E
25
E
25
E
25
E
25
E
20
E
25
E
25
E
30
E
25
E
25
E
25
ENE
30
ENE
30
E
25
E
20
E
20
E
20
E
25
ESE
20
E
20
E
25
E
25
E
20
ESE
20
E
20
E
20
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
30
E
25
E
25
E
25
E
25
E
20
E
20
E
20
E
20
ESE
20
ESE
20
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffcross-
off		cross-
off		offoffoffoffoffoffoffcross-
off		cross-
off		cross-
off		offoffcross-
off		offoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffcross-
off		offoffoffoffoffoffoffcross-
off		cross-
off		offcross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		offoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		offoffoffoff
High Tide
/ height (m)
9:32AM
0.69
10:52PM
0.60
9:51AM
0.67
11:48PM
0.59
10:11AM
0.66
12:59AM
0.58
10:36AM
0.65
2:32AM
0.58
11:11AM
0.64
4:06AM
0.61
12:06PM
0.62
5:05AM
0.65
1:34PM
0.62
5:42AM
0.68
3:09PM
0.63
Low Tide
/ height (m)
4:17PM
0.10
4:07AM
0.36
4:52PM
0.09
4:39AM
0.42
5:35PM
0.07
5:17AM
0.48
6:27PM
0.06
6:14AM
0.53
7:31PM
0.05
7:53AM
0.57
8:40PM
0.03
9:39AM
0.56
9:46PM
-0.00
10:46AM
0.51
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Sunrise6:26-------6:26-------6:26-------6:24-------6:24-------6:24-------6:22-------6:22---
Sunset---6:30-------6:31-------6:31-------6:31-------6:31-------6:31-------6:31-------6:31
clearclearclearpart cloudclearthunderstorm thunderstorm part cloudthunderstorm clearthunderstorm clearthunderstorm clearclearpart cloudpart cloudpart cloudthunderstorm rain showersrain showersclearpart cloudpart cloudpart cloudclearclearpart cloudclearpart cloudpart cloudclearpart cloudclearpart cloudpart cloudclearclearclearrain showerspart cloudpart cloudpart cloudclearpart cloudclearclearpart cloudpart cloudpart cloudpart cloudclearclearclearclearclearpart cloudclearclearpart cloud
Rain (mm)
-----21-1-1-1-----111------------------1--------------------
Temp. °C262727272727272727272728272727272727282727272727272727272727272727272728272727272727282827272727272728282727272727282828
Feels °C (?)272726282928272828282829272727272728292727262727262526282928272727262729272827272727292827282728272628282727282828292929
  • 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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View detailed surf forecast for Umatac at:
surf-forecast.com

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