Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 7 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
21.3° C
1.8° 

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 (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 1ft (0.3m), 5s period with SSE swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 1ft (0.3m), 7s period with SSE swell.
  • Evening surf: Evening surf (09 Aug, local time) - 0.5ft (0.2m), 7s period with SSE swell.

The current surf forecast for Costellos at 12PM is: 0.2m 7s primary swell from a South-southeast direction and 0.2m 4s secondary swell from a South direction (forecast issued at 07:00am August 09). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (09 Aug)1ft (0.3m)5s
Afternoon (09 Aug)1ft (0.3m)7s
Evening (09 Aug)0.5ft (0.2m)7s

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


Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 32°C on Sun afternoon, min 20°C on Mon night). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
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
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)
0.4
SSE
5
0.3
SSE
5
0.2
SSE
7
0.3
SSE
7
0.2
SSE
7
0.2
SSE
7
0.1
E
10
0.1
SE
7
0.2
SSE
5
0.2
SSE
5
0.2
S
7
0.4
SSE
3
0.5
SSE
3
0.5
SSE
4
0.4
SSE
4
0.4
SSE
4
0.3
SSE
4
0.3
SSE
4
0.3
SSE
4
0.1
SE
9
0.1
SE
9
0.1
SE
9
0.1
E
14
Wave Graph
Metric surfscale
Energy kJ
9
5
5
10
5
5
2
2
4
4
4
3
7
7
6
6
4
4
4
3
3
3
4
Wind (km/h)
10
WSW
15
WSW
15
W
20
W
15
WNW
10
W
10
W
10
WNW
10
NW
5
W
10
SSE
15
SE
15
SSE
0
ENE
5
W
10
W
10
W
10
W
10
W
15
WNW
20
NW
15
NNW
10
NW
Wind State
off
off
off
off
off
off
off
cross-off
cross-off
glassy
cross-on
cross-on
cross-on
glassy
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
High Tide
8:30AM2.95m
8:47PM3.49m
9:32AM3.10m
9:47PM3.62m
10:29AM3.26m
10:44PM3.73m
Low Tide
2:17AM0.46m
2:27PM0.72m
3:19AM0.32m
3:30PM0.59m
4:16AM0.18m
4:29PM0.44m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
light rain
clear
clear
clear
clear
clear
cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:53
7:52
7:51
 mm
1
Temp °C
22
24
29
32
32
28
25
24
22
22
26
27
26
22
21
20
20
20
27
29
30
25
22
Feels °C
23
25
28
29
29
27
24
23
22
23
25
25
25
24
22
21
21
21
27
28
27
23
20
  • 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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