Garbage Heap Surf Forecast

/ Saint Martin (9 surf breaks) /

Netherlands Antilles (9 surf breaks)

Surf Forecasts:

Garbage Heap surfForecast / Saint Martin / Netherlands Antilles

48hr Weather and Surf, issued 1 am Thursday 18 Sep 2025 AST

Forecast update in hr min s Forecast update imminent

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

Today's Garbage Heap sea temperature is 29.8° C
(Which is 1.3°C warmer than normal for this time of year)

How big are the waves at Garbage Heap today?

The current surf forecast for Garbage Heap at 6AM is: 1.4m 8s primary swell from a East-northeast direction and 0.2m 10s secondary swell from a North direction, 0.1m 8s secondary swell from a Southeast direction (forecast issued at 01:00am September 18). The wind direction is predicted to be cross-onshore.

Time (AST) & Date	Wave Height	Wave Period
Morning (18 Sep)	4.5ft (1.3m)	8s
Afternoon (18 Sep)	4.5ft (1.3m)	8s
Evening (18 Sep)	4.5ft (1.4m)	8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

		Thursday 18								Friday 19								Saturday 20
	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1	1	1	1	1	2	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	ENE	ENE	ENE	ENE	E	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	NE
Period(s) (?)	8	8	8	8	8	8	8	8	8	10	10	9	9	11	11	11	11	11	11	10	10	10	10	9
Wave Graph (?)
kJ (?)	250	243	237	207	179	219	218	226	176	210	193	185	216	286	373	394	387	334	322	304	286	240	235	194
Wind (km/h)	E	ESE	ESE	ENE	ENE	ESE	ENE	ENE	ENE	E	E	ESE	ESE	ESE	ESE	E	ESE	ESE	SE	SE	SE	SE	SSE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	on	cross- on	on	on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross- on	cross- on	cross	cross	cross	cross	cross	cross- off	cross
High Tide / height (m)			3:27AM 0.23					6:18PM 0.33			4:49AM 0.25					6:54PM 0.32				6:06AM 0.27				7:24PM 0.30
Low Tide / height (m)		12:21AM 0.21			10:36AM 0.07					12:36AM 0.21				11:39AM 0.10				12:55AM 0.19				12:38PM 0.12

		Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-	-
Sunset	-	-	-	-	-	-	6:12	-	-	-	-	-	-	-	6:10	-	-	-	-	-	-	-	6:09	-

Rain (mm)	-	1	4	7	2	1	1	-	-	2	2	1	-	-	1	3	-	-	-	-	-	-	3	2
Temp. °C	28	28	28	27	27	27	26	26	27	27	28	28	28	28	28	28	28	28	28	28	28	28	28	28
Feels °C (?)	27	28	29	29	30	29	27	26	27	27	29	30	31	31	31	31	30	31	31	31	32	31	31	31

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 Saint Martin

Wind Update Still cross-shore at Garbage Heap (strong winds from the SE at Wind-adventures.com 4 km from Garbage Heap). 1.0m 2s local chop from the ESE with a 0.5m 8s swell from the ENE and a 0.2m 11s groundswell from the NNE. 3 swells combining to make bigger set waves.
46 minutes ago Garbage Heap

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Actual: 46 min ago

46 km/h

Cross-Shore

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