Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 am 23 Sep 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
16.2°C
0.1° 

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 (23 Sep):

  • Morning surf: Morning surf (23 Sep, local time) - 5ft (1.5m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (23 Sep, local time) - 5.5ft (1.7m), 7s period with E swell.
  • Evening surf: Evening surf (23 Sep, local time) - 6ft (1.9m), 8s period with ESE swell.

The current surf forecast for Costellos at 6AM is: 1.3m 7s primary swell from a East direction and 0.1m 13s secondary swell from a East direction (forecast issued at 01:00am September 23). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (23 Sep)5ft (1.5m)7s
Afternoon (23 Sep)5.5ft (1.7m)7s
Evening (23 Sep)6ft (1.9m)8s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Fri night. Very mild (max 17°C on Fri afternoon, min 10°C on Wed night). Mainly fresh winds.

Wednesday
23
Thursday
24
Friday
25
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
1
2
2
2
0
0
0
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)
1.2
E
7
1.2
E
7
1.4
E
7
1.6
E
7
1.7
E
7
1.9
ESE
8
1.9
ESE
8
1.9
ESE
8
1.9
ESE
8
1.9
ESE
9
2
ESE
9
2.1
ESE
9
2.2
ESE
10
2.2
ESE
10
2.3
ESE
11
2.3
ESE
11
2.4
ESE
11
2.5
ESE
12
3
ESE
12
3
ESE
12
3
ESE
12
3
ESE
12
2.5
ESE
11
2.5
E
11
Wave Graph
Metric surfscale
Energy kJ
131
138
179
225
298
406
463
486
494
554
627
755
904
990
1150
1216
1390
1733
2173
2239
2165
2053
1815
1663
Wind (km/h)
15
NNE
20
NNE
25
NE
30
NE
25
ENE
20
ENE
15
ENE
15
NE
15
NNE
20
NNE
20
NNE
25
NE
20
ENE
20
ENE
15
ENE
15
NNE
20
N
20
NNE
25
NNE
25
NNE
30
NNE
25
NNE
25
NE
25
NNE
Wind State
cross-on
cross-on
cross-on
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-on
cross-on
cross-on
cross-on
cross-on
High Tide
9:27AM2.83m
9:39PM3.05m
10:07AM2.99m
10:22PM3.16m
10:46AM3.17m
Low Tide
3:15AM0.80m
3:28PM0.92m
3:57AM0.70m
4:12PM0.75m
4:36AM0.59m
4:54PM0.57m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:37
6:35
 mm
2
2
Temp °C
13
12
11
13
13
12
13
13
12
10
10
12
13
13
13
13
11
11
11
13
15
17
15
15
Feels °C
9
8
6
8
8
8
10
10
9
6
6
7
8
9
10
10
7
6
6
7
9
11
11
10
  • 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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