Costellos 48 hour detailed Surf Forecast

Lat Long: 42.95° N 70.78° W

Issued: 1 am 30 Sep 2026 (local time)

Forecast update in hr min

Today's Costellos sea temperature is

15.0°C

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

Surf Forecasts:

How big are the waves at Costellos today (30 Sep):

Morning surf: Morning surf (30 Sep, local time) - 3ft (0.9m), 9s period with E swell.
Afternoon surf: Afternoon surf (30 Sep, local time) - 2.5ft (0.8m), 9s period with E swell.
Evening surf: Evening surf (30 Sep, local time) - 2.5ft (0.7m), 9s period with E swell.

The current surf forecast for Costellos at 8AM is: 0.9m 9s primary swell from a East direction and 0.2m 13s secondary swell from a East-southeast direction (forecast issued at 01:00am September 30). The wind direction is predicted to be glassy.

Time (EDT) & Date	Wave Height	Wave Period
Morning (30 Sep)	3ft (0.9m)	9s
Afternoon (30 Sep)	2.5ft (0.8m)	9s
Evening (30 Sep)	2.5ft (0.7m)	9s

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

	Short Range Forecast Mostly dry. Warm (max 27°C on Fri afternoon, min 15°C on Wed morning). Wind will be generally light.
	Wednesday 30								Thursday 1								Friday 2
	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	11 PM
Rating (10 max)	1	1	1	1	0	0	0	1	1	1	1	1	1	1	0	0	0	1	0	0	1	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	SE 12	E 8	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	ESE 12	ESE 12	ESE 12	ESE 12	E 11	SSE 6
Wave Graph
kJ	120	125	125	96	96	94	73	73	73	52	52	50	50	35	36	36	36	36	55	54	53	77	65	42
Wind (km/h)	W	W	WSW	SW	SSE	SSE	S	WSW	WSW	SW	WSW	SW	SW	WSW	SW	SW	SW	SW	SW	SW	WSW	W	W	WSW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	glassy	cross-off	cross	cross	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	off	off	off	off
High Tide	2:00AM3.27m					2:14PM3.57m				2:51AM3.17m				3:05PM3.50m				3:47AM3.07m				4:02PM3.40m
Low Tide			8:00AM0.51m					8:39PM0.25m				8:50AM0.60m				9:34PM0.33m				9:45AM0.71m				10:34PM0.43m


	—	6:37	—	—	—	—	—	—	—	6:39	—	—	—	—	—	—	—	6:41	—	—	—	—	—	—
	—	—	—	—	—	6:25	—	—	—	—	—	—	—	6:24	—	—	—	—	—	—	—	6:22	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	15	15	15	16	18	18	17	17	17	17	17	22	25	22	20	19	19	19	19	23	27	24	21	20
Feels °C	16	15	15	16	17	17	16	17	17	17	17	22	23	20	18	17	17	18	18	21	25	22	20	19
Swell 1 Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 8	E 8	E 8	E 8	E 8	E 8	E 8	E 8	E 8	ESE 12	ESE 12	ESE 12	SSE 5	SSE 6	SSE 6
kJ	120	125	125	96	96	94	73	73	73	52	52	50	50	34	34	33	20	20	55	54	53	29	40	42
Swell 2 Height (m) Direction Period (s)	SSE 6	ESE 13	ESE 13	ESE 13	ESE 13	ESE 13	ESE 13	SE 12	ESE 12	SE 12	ESE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	E 8	E 8	E 7	ESE 12	E 11	ESE 11
kJ	4	17	17	17	17	16	16	39	29	37	28	35	35	35	36	36	36	36	19	10	10	77	65	40
Swell 3 Height (m) Direction Period (s)	ESE 13	ESE 13	SE 13	SSE 6	SE 8	SE 8	SE 7	SE 7	SSE 7	S 3	S 3	S 3	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	—	—	—
kJ	17	17	7	3	2	2	9	2	5	2	2	1	6	6	6	6	6	6	6	6	6	—	—	—
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	SSE 3	S 3	S 3	SSW 3	SSW 3	SSW 3	SSW 2	SSW 2	SSW 3	SSW 3	S 4	S 4	S 5	S 5	S 5	WSW 3	WSW 3	WNW 3
kJ	—	—	—	—	—	—	2	3	3	4	2	2	1	1	1	3	13	20	27	20	21	4	2	3
Nearest Offshore or Glassy	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Turtle Cove Long Island NY	Fieldstone Massachusetts	Salisbury Beach Massachusetts	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Salisbury Beach Massachusetts	Salisbury Beach Massachusetts	Bethany Delaware	Costellos New Hampshire	Ogunquit Beach Maine	Salisbury Beach Massachusetts	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire	Costellos New Hampshire
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	0	0	0	0	227	92	14	0	0	0	0	0	0	0	14	14	609	0	38	14	0	0	0	0
Best forecast wave conditions in New Hampshire	Hampton Beach	Hampton Beach	Hampton Beach	Hampton Beach				Hampton Beach	Hampton Beach	Hampton Beach	Hampton Beach	The Wall	The Wall	Hampton Beach				The Wall			The Wall	The Wall	Hampton Beach	The Wall
Rating (10 max)	1	1	1	1				1	1	1	1	1	1	1				1			1	1	1	1
Best forecast wave conditions in United States	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Seaside Point Oregon North	The Dump Washington	The Dump Washington	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Newport Point CAL - Orange County	Seaside Point Oregon North	Seaside Point Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	The Wedge CAL - Orange County	The Wedge CAL - Orange County	The Wedge CAL - Orange County	North End Virginia	Fluidgroove Reef Florida - North	Lincoln City Nelscott Reef Oregon North
Rating (10 max)	4	4	4	4	3	2	2	3	3	3	3	3	1	2	2	2	3	2	2	2	2	1	1	2
Header Global	Dinner Plates New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Ouano Lefts New Caledonia	Fish Boma South Africa	Gerickes Point South Africa	Easky Left Ireland	Easky Left Ireland	Easky Left Ireland	Gas Bay Australia	Cobblestones Australia	Cobblestones Australia	Cavalos de Fao Portugal	Figueira da Foz - Buarcos Portugal	Figueira da Foz - Buarcos Portugal	Figueira da Foz - Buarcos Portugal	Trial Harbour Australia	Trial Harbour Australia	Papatowai New Zealand	Dunedin - Bobs Beach New Zealand	Cobblestones Australia	Cobblestones Australia	Ahijedero Mexico
Rating (10 max)	5	5	5	4	5	5	5	9	9	9	7	6	6	5	5	5	5	6	6	5	5	5	5	4

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

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Costellos 48 hour detailed Surf Forecast

How big are the waves at Costellos today (30 Sep):

Short Range Forecast

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