Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 pm 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) - 5.5ft (1.7m), 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 7PM is: 2.0m 9s primary swell from a East direction and 1.8m 10s secondary swell from a East-southeast direction (forecast issued at 01:00pm October 20). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (20 Oct)5ft (1.6m)11s
Afternoon (20 Oct)5.5ft (1.7m)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 15°C on Thu afternoon, min 5°C on Wed morning). Mainly fresh winds.

Tue
20
Wednesday
21
Thursday
22
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)
0
0
0
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
ESE
11
1.7
ESE
10
1.8
ESE
10
2
E
9
1.9
E
9
2.2
E
9
2.3
E
9
2.1
E
9
2.1
E
8
2
E
8
2
E
9
2
E
9
2
E
9
2.1
E
9
2
E
9
1.9
ESE
9
2
E
9
1.8
E
9
1.7
E
9
1.5
E
9
1.4
ESE
8
Wave Graph
Metric surfscale
Energy kJ
637
598
600
700
601
770
809
660
616
553
600
635
650
731
664
599
627
498
442
339
284
Wind (km/h)
25
NNE
20
ENE
15
ENE
20
NE
25
NE
25
NNE
25
NNE
25
NNE
25
NE
25
ENE
20
NE
20
NE
20
NNE
20
NNE
20
N
20
N
20
N
20
NNE
15
NNE
30
N
25
N
Wind State
cross-on
cross-on
on
cross-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
cross
High Tide
7:18PM2.78m
7:58AM2.74m
8:12PM2.85m
8:43AM2.90m
9:01PM2.95m
Low Tide
1:08PM1.18m
1:41AM0.94m
2:03PM1.06m
2:28AM0.86m
2:52PM0.88m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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7:03
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—
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7:03
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—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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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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—
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—
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—
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—
—
—
—
—
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Temp °C
14
14
14
13
11
8
6
5
7
8
8
8
8
7
6
7
10
14
15
12
10
Feels °C
8
9
10
8
5
2
0
-1
1
2
3
4
4
3
1
2
5
9
11
5
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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