Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
20.7° C
1.2° 

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 (15 Aug):

  • Morning surf: Morning surf (15 Aug, local time) - 0.5ft (0.2m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (15 Aug, local time) - 0.5ft (0.2m), 9s period with ESE swell.
  • Evening surf: Evening surf (15 Aug, local time) - 0.5ft (0.2m), 9s period with ESE swell.

The current surf forecast for Costellos at 10PM is: 0.3m 9s primary swell from a Southeast direction and 0.3m 3s secondary swell from a South direction (forecast issued at 01:00pm August 15). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (15 Aug)0.5ft (0.2m)9s
Afternoon (15 Aug)0.5ft (0.2m)9s
Evening (15 Aug)0.5ft (0.2m)9s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Mon afternoon. Warm (max 24°C on Sun night, min 17°C on Sat night). Wind will be generally light.

Sat
15
Sunday
16
Monday
17
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
Swell
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
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.2
ESE
9
0.2
ESE
9
0.3
SE
9
1.4
SSE
5
1.3
S
6
1
S
5
0.9
SSE
5
1
S
5
1
S
5
1
S
5
1
S
5
0.9
SSE
5
0.8
SSE
4
Wave Graph
Metric surfscale
Energy kJ
8
8
8
8
13
12
12
12
8
8
12
105
106
53
38
49
55
51
45
32
23
Wind (km/h)
5
E
15
SE
15
SSE
15
S
10
WSW
10
NNW
5
N
10
NNE
10
E
15
ESE
15
SE
25
SSW
15
SSW
15
S
20
SSW
15
SSW
15
S
5
S
10
E
5
NE
10
N
Wind State
on
cross-on
cross-on
cross
off
cross-off
cross
cross-on
on
cross-on
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
on
cross-on
cross
High Tide
1:48PM3.56m
2:09AM3.52m
2:34PM3.49m
2:58AM3.32m
3:20PM3.38m
Low Tide
7:58PM0.25m
8:21AM0.28m
8:47PM0.35m
9:06AM0.47m
9:37PM0.49m
cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
rain showers
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:44
7:43
 mm
2
2
2
3
1
Temp °C
20
23
23
22
20
19
17
17
19
21
22
24
23
22
21
19
19
20
20
20
20
Feels °C
19
20
20
20
19
18
16
16
18
20
21
20
22
22
20
19
19
22
22
23
22
  • 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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