Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 am 20 Oct 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
13.0°C
0.3° 

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


How big are the waves at Costellos today (20 Oct):

  • Morning surf: Morning surf (20 Oct, local time) - 5ft (1.6m), 11s period with ESE swell.
  • Afternoon surf: Afternoon surf (20 Oct, local time) - 6ft (1.8m), 10s period with ESE swell.
  • Evening surf: Evening surf (20 Oct, local time) - 6.5ft (2.0m), 9s period with E swell.

The current surf forecast for Costellos at 8AM is: 1.6m 11s primary swell from a East-southeast direction and 0.5m 3s secondary swell from a North-northeast direction (forecast issued at 01:00am October 20). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (20 Oct)5ft (1.6m)11s
Afternoon (20 Oct)6ft (1.8m)10s
Evening (20 Oct)6.5ft (2.0m)9s

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


Short Range Forecast

Mostly dry. Very mild (max 14°C on Thu afternoon, min 5°C on Tue night). Mainly fresh winds.

Tuesday
20
Wednesday
21
Thursday
22
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
2
0
0
1
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
ESE
10
1.3
ESE
10
1.6
ESE
11
1.7
ESE
11
1.7
ESE
10
1.9
ESE
10
1.8
ESE
10
1.8
E
9
2.2
E
9
2.2
E
9
2.1
E
9
1.9
E
8
1.8
E
8
1.8
E
9
1.7
E
9
1.7
E
9
1.7
ESE
9
1.7
ESE
9
1.7
E
9
1.6
E
9
1.6
E
9
1.5
E
9
1.4
ESE
9
1.2
ESE
8
Wave Graph
Metric surfscale
Energy kJ
212
347
584
637
598
644
632
544
775
741
660
501
448
476
442
452
474
474
473
421
412
355
304
217
Wind (km/h)
10
N
15
N
15
N
25
NE
20
ENE
15
E
15
NE
25
NE
25
NNE
25
NNE
20
NNE
20
NE
20
ENE
15
ENE
15
NE
15
NNE
15
N
15
N
15
N
15
NNE
15
NNE
10
ENE
20
N
30
N
Wind State
cross
cross
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
High Tide
7:08AM2.63m
7:18PM2.78m
7:58AM2.74m
8:12PM2.85m
8:43AM2.90m
9:01PM2.95m
Low Tide
00:50AM0.97m
1:08PM1.18m
1:41AM0.94m
2:03PM1.06m
2:28AM0.86m
2:52PM0.88m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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7:01
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7:03
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7:03
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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—
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5:52
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—
—
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5:51
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5:50
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 mm
—
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—
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Temp °C
9
9
10
13
13
13
13
10
8
5
5
6
7
7
8
8
6
6
6
9
13
14
12
10
Feels °C
6
5
6
8
8
10
9
5
2
-1
-1
0
2
2
4
5
2
1
1
4
8
11
7
3
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Costellos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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