Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
18.9° 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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 2ft (0.6m), 7s period with SE swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Evening surf: Evening surf (19 Aug, local time) - 3ft (0.9m), 6s period with SSE swell.

The current surf forecast for Costellos at 7AM is: 0.6m 7s primary swell from a Southeast direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 01:00am August 19). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (19 Aug)2ft (0.6m)7s
Afternoon (19 Aug)1.5ft (0.4m)9s
Evening (19 Aug)3ft (0.9m)6s

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


Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Warm (max 27°C on Wed night, min 18°C on Fri night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
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)
1
1
1
0
0
0
1
1
1
1
1
0
0
0
0
0
0
1
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)
0.7
SE
8
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.7
SE
7
0.9
SSE
6
0.8
SE
6
0.9
SE
6
0.8
SE
6
0.8
SE
8
0.6
SE
8
0.6
SE
8
0.6
ESE
7
0.6
ESE
7
0.5
SE
8
0.6
SE
7
0.6
ESE
8
0.6
ESE
8
0.5
ESE
8
0.5
ESE
8
0.5
ESE
8
0.5
ESE
8
0.5
ESE
8
Wave Graph
Metric surfscale
Energy kJ
58
33
29
29
28
44
62
46
54
45
77
49
46
37
36
29
28
46
48
39
39
38
37
36
Wind (km/h)
5
SW
5
WNW
5
NW
5
SSE
10
SE
10
SE
10
W
10
WNW
10
WSW
10
WSW
5
W
5
SW
5
SSW
15
S
10
SSW
10
SW
10
NW
15
NNW
10
N
10
ENE
15
ESE
15
SE
10
SSE
5
SW
Wind State
glassy
glassy
glassy
cross
cross-on
cross-on
off
off
off
off
off
glassy
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
on
cross-on
cross-on
cross
glassy
High Tide
4:39AM2.89m
4:56PM3.09m
5:33AM2.72m
5:48PM2.97m
6:32AM2.60m
6:45PM2.91m
Low Tide
10:40AM0.88m
11:22PM0.78m
11:31AM1.04m
00:20AM0.88m
12:26PM1.14m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:38
7:37
7:36
 mm
1
Temp °C
19
19
20
24
26
26
27
24
22
21
22
26
25
21
21
20
20
19
19
22
23
22
21
20
Feels °C
21
21
23
25
25
26
26
23
21
20
22
27
25
21
21
20
20
17
17
20
20
18
19
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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