Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 7 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
17.7°C
0.4° 

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 (13 Sep):

  • Afternoon surf: Afternoon surf (13 Sep, local time) - 0.5ft (0.2m), 10s period with ESE swell.
  • Evening surf: Evening surf (13 Sep, local time) - 1ft (0.3m), 10s period with SE swell.

The current surf forecast for Costellos at 12AM is: 0.9m 4s primary swell from a South direction and 0.3m 10s secondary swell from a Southeast direction (forecast issued at 07:00pm September 12). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (13 Sep)--
Afternoon (13 Sep)0.5ft (0.2m)10s
Evening (13 Sep)1ft (0.3m)10s

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


Short Range Forecast

Moderate rain (total 17mm), heaviest on Sun afternoon. Warm (max 21°C on Mon afternoon, min 12°C on Mon night). Wind will be generally light.

Sat
12
Sunday
13
Monday
14
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
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
ESE
10
0.3
SE
10
0.9
S
4
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.8
SE
8
0.8
SE
8
0.6
SE
7
0.6
SE
7
0.6
SE
7
Wave Graph
Metric surfscale
Energy kJ
9
15
33
20
15
25
24
24
23
31
30
21
21
20
77
71
44
44
33
Wind (km/h)
20
SE
15
SSE
15
SSW
10
SSW
10
SSW
10
SSW
10
SSE
10
SE
5
SE
5
WSW
10
SSW
10
SW
20
NW
20
W
25
NW
20
NW
20
NW
10
NNW
15
N
Wind State
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
00:57AM3.50m
1:16PM3.56m
1:43AM3.37m
1:58PM3.48m
Low Tide
6:46PM0.19m
7:05AM0.31m
7:32PM0.24m
7:47AM0.45m
8:17PM0.34m
clear
part cloud
part cloud
clear
part cloud
cloud
mod rain
mod rain
cloud
cloud
clear
part cloud
cloud
light rain
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:57
6:54
 mm
7
8
2
Temp °C
18
18
17
17
17
17
16
17
18
18
19
18
19
16
20
21
21
18
15
Feels °C
14
16
15
16
16
17
16
17
20
19
20
19
17
14
15
16
16
15
11
  • 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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