Mutungs surfForecast / Guam / Guam

information circle12 Day Weather and Surf, issued 9 am Thursday 18 Dec 2025 ChST
Forecast update in hr  min  s Forecast update imminent
Mutungs surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mutungs sea temperature is
28.8° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Mutungs this week:

The surf forecast for Mutungs over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 25) at 1AM. The primary swell is predicted to be 0.4m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mutungs in the next 12 days are 1.1m 10s and forecast to arrive on Monday (Dec 22) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 11s period and expected on Monday (Dec 22) at 4PM.

Wave TypeTime (ChST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 25th Dec)1.5ft (0.4m) 16s
Best Surf10AM (Thu 25th Dec)2ft (0.6m) 14s
Most Powerful 1AM (Mon 22nd Dec)3.5ft (1.1m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 16mm), heaviest on Sat night. Warm (max 28°C on Thu morning, min 27°C on Thu night). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 25mm), heaviest during Sun night. Warm (max 28°C on Sun morning, min 27°C on Sun morning). Mainly fresh winds.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.7
NNW
0.7
N
0.7
N
0.8
N
0.8
N
0.6
NE
0.7
NE
0.7
NE
0.6
NE
1.3
NNE
0.6
NE
1.1
N
0.9
NNE
3
ENE
2.5
ENE
2.4
ENE
2.2
ENE
2
ENE
1.7
ENE
0.1
N
0.4
NE
Period(s) (?)10121110111514141391210111111111110101916
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8013910811614613920619511325498255217000000767
Wind
(km/h)
30
E
25
ENE
30
ENE
20
E
25
ENE
25
E
30
E
30
ENE
30
ENE
35
ENE
35
ENE
35
E
35
E
35
E
30
E
30
ESE
20
ESE
20
ESE
25
SE
20
SE
15
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffcross-
off
High Tide
/ height (m)
5:35PM
0.68
8:40AM
0.72
6:07PM
0.67
9:16AM
0.73
6:39PM
0.67
9:52AM
0.75
7:11PM
0.67
10:27AM
0.75
7:45PM
0.66
11:01AM
0.75
8:24PM
0.65
11:33AM
0.74
9:09PM
0.63
Low Tide
/ height (m)
12:52PM
0.50
1:05AM
-0.08
1:37PM
0.52
1:38AM
-0.10
2:17PM
0.52
2:12AM
-0.12
2:54PM
0.53
2:45AM
-0.12
3:31PM
0.53
3:19AM
-0.12
4:09PM
0.52
3:55AM
-0.09
4:53PM
0.50
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:37--6:37--6:37--6:37--6:39--6:39--6:39--
Sunset-5:57--5:58--5:58--5:59--5:59--6:00--6:00-
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
Rain (mm)
-----4246-15226342--1
Temp. °C282827282828282727282827282727272727282827
Feels °C (?)282827292828282726272726272626262828292929
  • 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

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Information about the Mutungs Surf forecast

The above surf forecast table for Mutungs provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mutungs can be found by selecting the local surf guide option on the grey menu. Our Mutungs 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 (Mutungs) 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 Mutungs 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.

Mutungs is 15 km (9 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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