Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
18.7°C
0.6° 

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 (01 Sep):

  • Morning surf: Morning surf (01 Sep, local time) - 1ft (0.3m), 8s period with SE swell.
  • Afternoon surf: Afternoon surf (01 Sep, local time) - 1ft (0.3m), 8s period with SE swell.
  • Evening surf: Evening surf (01 Sep, local time) - 1ft (0.3m), 10s period with SE swell.

The current surf forecast for Costellos at 7AM is: 0.3m 8s primary swell from a Southeast direction and 0.4m 4s secondary swell from a South direction (forecast issued at 01:00am September 01). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (01 Sep)1ft (0.3m)8s
Afternoon (01 Sep)1ft (0.3m)8s
Evening (01 Sep)1ft (0.3m)10s

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


Short Range Forecast

Moderate rain (total 19mm), heaviest on Thu morning. Warm (max 22°C on Thu afternoon, min 16°C on Tue morning). Wind will be generally light.

Tuesday
1
Wednesday
2
Thursday
3
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
1
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)
0.6
S
4
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
10
0.3
SE
10
0.3
SE
12
0.4
SE
12
0.5
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.6
SE
10
0.6
SE
10
0.6
SE
10
0.8
SE
6
0.8
SE
6
0.9
SE
6
0.9
SE
6
0.9
SE
6
0.9
SE
6
0.9
ESE
6
Wave Graph
Metric surfscale
Energy kJ
12
10
10
10
10
10
15
14
23
49
59
75
73
64
60
60
59
44
47
54
54
46
47
69
Wind (km/h)
10
SW
5
NW
5
NE
10
NE
10
ENE
10
E
10
SSE
10
SSE
5
SE
5
ESE
5
ENE
10
E
10
E
15
SE
10
ESE
15
SE
15
SE
15
SE
20
SSE
15
S
5
SW
10
NNE
10
N
10
N
Wind State
cross-off
glassy
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-on
cross
cross
High Tide
2:20AM3.20m
2:38PM3.39m
3:07AM3.10m
3:25PM3.36m
4:00AM2.99m
4:18PM3.32m
Low Tide
8:24AM0.55m
8:58PM0.45m
9:09AM0.64m
9:49PM0.49m
10:00AM0.74m
10:47PM0.55m
part cloud
part cloud
cloud
cloud
light rain
light rain
cloud
cloud
light rain
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
thunderstorm
thunderstorm
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:15
7:15
 mm
4
1
1
2
2
5
2
1
1
Temp °C
19
18
16
16
16
17
17
17
17
17
17
18
19
19
19
18
18
18
18
19
22
21
18
17
Feels °C
19
19
16
15
16
18
17
17
18
18
17
17
18
17
18
17
17
17
17
20
25
23
19
17
  • 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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