Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 7 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
21.6° C
2.1° 

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 (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 0.5ft (0.1m), 14s period with SE swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 0.5ft (0.1m), 14s period with SE swell.
  • Evening surf: Evening surf (12 Aug, local time) - 0.5ft (0.1m), 14s period with SE swell.

The current surf forecast for Costellos at 4AM is: 0.1m 14s primary swell from a East direction and 0.1m 9s secondary swell from a Southeast direction, 0.1m 6s secondary swell from a South direction (forecast issued at 07:00pm August 11). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (12 Aug)0.5ft (0.1m)14s
Afternoon (12 Aug)0.5ft (0.1m)14s
Evening (12 Aug)0.5ft (0.1m)14s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Wed afternoon, min 19°C on Wed night). Wind will be generally light.

Tue
11
Wednesday
12
Thursday
13
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)
0.1
SE
9
0.2
ESE
9
0.2
ESE
9
0.1
E
14
0.1
E
14
0.1
E
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.4
S
4
0.1
SE
14
0.2
ESE
8
0.1
SE
14
0.1
SE
14
0.5
S
3
0.5
S
4
0.2
ESE
10
Wave Graph
Metric surfscale
Energy kJ
3
8
8
4
4
4
8
8
8
8
8
8
8
8
8
7
7
7
9
Wind (km/h)
15
NW
10
NW
10
WNW
10
NW
10
NW
10
WNW
5
NW
5
S
5
SW
5
SW
10
W
10
W
10
W
15
W
10
W
5
S
15
NW
10
NW
10
NW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
off
off
off
off
off
cross
cross-off
cross-off
cross-off
High Tide
10:44PM3.73m
11:22AM3.41m
11:38PM3.78m
12:13PM3.52m
Low Tide
4:29PM0.44m
5:10AM0.07m
5:24PM0.31m
6:00AM0.01m
6:17PM0.23m
part cloud
clear
part cloud
part cloud
clear
clear
clear
cloud
cloud
part cloud
clear
cloud
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:51
7:50
7:47
 mm
Temp °C
28
24
23
22
20
21
26
27
26
23
22
21
19
21
25
25
27
24
22
Feels °C
26
22
22
20
18
20
25
26
26
23
21
20
18
19
24
25
25
23
21
  • 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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