Plum Island Surf Forecast

/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /

USA (1297 breaks) / Lat Long: (42.80° N 70.81° W)

Surf Forecasts:

Plum Island surfForecast / Massachusetts / USA

48hr Weather and Surf, issued 1 am Tuesday 16 Sep 2025 EDT

Forecast update in hr min s Forecast update imminent

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

Today's Plum Island sea temperature is 16.6° C
(Which is slightly cooler than normal)

How big are the waves at Plum Island today?

The current surf forecast for Plum Island at 7AM is: 0.6m 8s primary swell from a East-southeast direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 01:00am September 16). The wind direction is predicted to be cross-shore.

Time (EDT) & Date	Wave Height	Wave Period
Morning (16 Sep)	2ft (0.6m)	8s
Afternoon (16 Sep)	2ft (0.6m)	8s
Evening (16 Sep)	1.5ft (0.5m)	8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

		Tuesday 16								Wednesday 17								Thursday 18
	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	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	E	E	E	E	E	SE	SE	ESE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	ESE
Period(s) (?)	8	8	8	8	8	8	8	8	8	11	8	7	8	7	9	9	9	9	7	7	8	8	8	8
Wave Graph (?)
Energy (?)	52	59	60	56	61	59	46	56	54	48	40	36	46	40	64	64	72	71	58	55	59	56	117	65
Wind (km/h)	S	WNW	NNW	NNE	ENE	E	ESE	SE	S	WNW	NW	WNW	ESE	SE	SE	SSE	S	SW	SW	WSW	SSW	S	S	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	cross- off	glass	on	on	on	cross- on	cross	glass	glass	glass	cross- on	cross- on	cross- on	cross- on	cross	cross- off	cross- off	cross- off	cross- off	cross	cross	cross- off
High Tide / height (m)				7:37AM 2.12				7:59PM 2.53					8:52AM 2.16				9:10PM 2.55				9:59AM 2.24
Low Tide / height (m)			2:02AM 0.07				2:18PM 0.36				3:07AM 0.07				3:23PM 0.31				4:06AM 0.03				4:22PM 0.23

		Tuesday 16								Wednesday 17								Thursday 18
Sunrise	-	-	-	6:22	-	-	-	-	-	-	-	6:24	-	-	-	-	-	-	-	6:24	-	-	-	-
Sunset	-	-	-	-	-	-	6:52	-	-	-	-	-	-	-	6:50	-	-	-	-	-	-	-	6:47	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	17	17	16	16	17	18	18	17	17	16	15	15	17	19	19	17	17	17	17	17	21	25	26	24
Feels °C (?)	17	17	15	16	16	17	17	16	16	16	14	15	16	17	17	16	17	17	17	16	20	23	24	22

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 Massachusetts

Wind Update Continuing clean conditions at Plum Island (calm at Ipswich 12 km from Plum Island). 0.6m 8s swell from the ESE to make surfable waves.
1 hour 10 minutes ago Plum Island

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1 h 10 min ago

0 km/h

NNW

Clean

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