Threes Surf Forecast

/ Guam (16 surf breaks) /

Guam (16 surf breaks)

Surf Forecasts:

Threes surfForecast / Guam / Guam

48hr Weather and Surf, issued 9 pm Thursday 18 Sep 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 29.7° C
(Which is normal for this time of year)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thu 18		Friday 19								Saturday 20								Sunday 21
	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM
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
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	SE	ESE	ESE	E	SE	NE	N	ENE	ENE	ENE	E	E	E	E	E	N	N	E	W	W	W
Period(s) (?)	9	8	10	8	8	8	9	9	10	10	5	5	5	5	5	5	5	7	9	9	7	9	8	8
Wave Graph (?)
kJ (?)	0	0	0	0	0	0	0	0	120	2	0	0	0	0	0	0	0	0	6	7	0	6	12	12
Wind (km/h)	E	ESE	SE	NNW	NNW	NNW	NNE	NE	ENE	ENE	ENE	E	E	E	E	NE	NE	ENE	ENE	E	E	E	ESE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	off	glass	cross- on	cross- on	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	off
High Tide / height (m)	6:39PM 0.72				5:06AM 0.65					7:09PM 0.72			6:07AM 0.67					7:35PM 0.72			6:59AM 0.68
Low Tide / height (m)			12:08AM 0.42				12:07PM -0.02				12:47AM 0.35				12:50PM 0.02					1:22AM 0.28				1:28PM 0.07

	Thu 18		Friday 19								Saturday 20								Sunday 21
Sunrise	-	-	-	-	6:09	-	-	-	-	-	-	-	6:09	-	-	-	-	-	-	-	6:09	-	-	-
Sunset	-	-	-	-	-	-	-	6:20	-	-	-	-	-	-	-	6:19	-	-	-	-	-	-	-	6:17

Rain (mm)	1	2	4	5	3	1	-	-	-	-	1	1	-	3	3	3	-	-	3	1	-	1	2	3
Temp. °C	27	28	28	27	26	26	26	27	27	27	27	28	28	28	28	26	27	27	27	27	27	28	28	28
Feels °C (?)	30	31	32	31	28	28	27	28	27	27	28	29	29	30	31	27	29	29	28	27	27	29	29	30

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

Recent Eyeball Surf Reports for Guam

Wind Update Continuing clean conditions at Threes (calm at Windward Hills wx 15 km from Threes). No surfable waves
56 minutes ago Threes

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Actual: 56 min ago

0 km/h

Clean

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