Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 am 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
16.8°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 (16 Sep):

  • Morning surf: Morning surf (16 Sep, local time) - 0.5ft (0.2m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (16 Sep, local time) - 0.5ft (0.2m), 9s period with ESE swell.
  • Evening surf: Evening surf (16 Sep, local time) - 2ft (0.6m), 4s period with SSE swell.

The current surf forecast for Costellos at 6AM is: 0.2m 9s primary swell from a East-southeast direction and 0.2m 4s secondary swell from a East direction (forecast issued at 01:00am September 16). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (16 Sep)0.5ft (0.2m)9s
Afternoon (16 Sep)0.5ft (0.2m)9s
Evening (16 Sep)2ft (0.6m)4s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Warm (max 26°C on Wed afternoon, min 10°C on Fri night). Wind will be generally light.

Wednesday
16
Thursday
17
Friday
18
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
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
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.7
SSE
4
0.3
ESE
8
0.7
SSE
4
0.4
ESE
8
0.4
ESE
8
0.5
E
8
0.5
E
8
0.5
E
7
0.5
E
7
0.5
E
7
0.5
E
7
0.5
E
7
0.5
E
7
0.5
ESE
7
0.4
ESE
7
0.4
ESE
7
0.4
ESE
7
0.4
ESE
7
0.4
ESE
7
Wave Graph
Metric surfscale
Energy kJ
8
8
8
8
8
16
14
20
19
19
29
29
28
27
26
25
26
27
29
19
18
15
18
19
Wind (km/h)
10
SW
15
SW
15
SW
15
SSW
10
S
15
SSE
10
SSW
5
WSW
10
N
10
N
10
N
10
NE
5
NE
10
ENE
10
NE
0
NNE
5
WSW
10
W
15
WNW
20
NW
25
NW
20
NW
15
NW
20
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
on
cross-on
glassy
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
3:14AM3.01m
3:26PM3.20m
4:03AM2.83m
4:13PM3.04m
4:55AM2.67m
5:06PM2.92m
Low Tide
9:13AM0.80m
9:51PM0.64m
9:59AM0.97m
10:42PM0.79m
10:50AM1.12m
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
light rain
light rain
clear
cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:50
6:47
 mm
1
1
Temp °C
14
14
14
19
25
26
26
23
20
18
17
19
19
18
17
17
17
18
19
23
24
22
17
13
Feels °C
12
12
11
17
23
24
26
23
20
17
16
19
20
18
17
19
18
18
18
19
19
17
12
8
  • 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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