Mangandas Surf Forecast

/ Guam (16 surf breaks) /

Guam (16 surf breaks)

Surf Forecasts:

Mangandas surfForecast / Guam / Guam

12 Day Weather and Surf, issued 9 am Tuesday 28 Oct 2025 ChST

Forecast update in hr min s Forecast update imminent

Mangandas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Mangandas sea temperature is 29.5° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Mangandas this week:

The surf forecast for Mangandas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 01) at 7PM. The primary swell is predicted to be 0.7m and 13s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mangandas in the next 12 days are 1.0m 12s and forecast to arrive on Sunday (Nov 02) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 10s period and expected on Tuesday (Nov 04) at 4AM.

Wave Type	Time (ChST) & Date	Wave Height & Period
Next good surf (1 star+)	7PM (Sat 1st Nov)	2.5ft (0.7m) 13s
Best Surf	10PM (Sat 1st Nov)	3ft (0.9m) 13s
Most Powerful	1AM (Sun 2nd Nov)	3.5ft (1.0m) 12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 22mm), heaviest during Thu afternoon. Warm (max 29°C on Tue morning, min 27°C on Thu afternoon). Wind will be generally light.									Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Fri night. Warm (max 29°C on Sun morning, min 27°C on Fri night). Wind will be generally light.
	Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 01			Sunday 02			Monday 03
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NNE	NNE	N	NNE	NNE	NNE	NNE	NE	NW	NW	NW	NW	NNW	N	N	N	N	N	NNE	NNE	SW
Period(s) (?)	9	9	9	10	10	10	9	9	9	8	8	7	9	13	12	11	10	9	9	10	8
Wave Graph (?)
kJ (?)	90	65	40	90	86	63	56	41	12	18	16	9	16	83	282	185	98	41	26	37	16
Wind (km/h)	ENE	ENE	E	E	ESE	E	E	SE	SE	E	E	E	ESE	SE	N	NE	NNE	NE	NE	E	E
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	off	off	cross- off	cross- off	cross- off	cross- off	off	cross- on	cross	cross	glass	cross	cross- off	cross- off
High Tide / height (m)		1:39PM 0.61	10:08PM 0.53		2:45PM 0.62	11:17PM 0.51		3:33PM 0.64	1:05AM 0.49		4:09PM 0.67	2:53AM 0.51		4:39PM 0.69		4:19AM 0.56	5:07PM 0.72		5:30AM 0.62	5:34PM 0.73
Low Tide / height (m)		7:00PM 0.50		6:25AM -0.00		8:24PM 0.48	7:29AM 0.02		9:27PM 0.44	8:33AM 0.04		10:12PM 0.37	9:33AM 0.07		10:52PM 0.27	10:29AM 0.12		11:30PM 0.15	11:22AM 0.17		12:09AM 0.02

	Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 01			Sunday 02			Monday 03
Sunrise	6:13	-	-	6:13	-	-	6:13	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:15	-	-
Sunset	-	5:55	-	-	5:54	-	-	5:54	-	-	5:54	-	-	5:53	-	-	5:53	-	-	5:53	-

Rain (mm)	1	2	-	-	-	6	6	6	1	-	1	4	2	-	-	-	-	-	2	-	7
Temp. °C	29	29	28	29	29	28	29	28	27	28	28	28	28	28	27	29	29	28	27	27	28
Feels °C (?)	32	31	30	31	32	31	32	30	29	30	31	31	30	31	32	31	32	32	29	28	29

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Quick surf report for Mangandas:

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Information about the Mangandas Surf forecast

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

Mangandas is 14 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.