Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 1 pm 27 Sep 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
15.6°C
0.1° 

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 (27 Sep):

  • Morning surf: Morning surf (27 Sep, local time) - 13ft (4.0m), 9s period with ENE swell.
  • Afternoon surf: Afternoon surf (27 Sep, local time) - 11ft (3.5m), 9s period with ENE swell.
  • Evening surf: Evening surf (27 Sep, local time) - 10ft (3.0m), 8s period with ENE swell.

The current surf forecast for Costellos at 9PM is: 3.0m 8s primary swell from a East-northeast direction and 0.4m 8s secondary swell from a South-southeast direction (forecast issued at 01:00pm September 27). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (27 Sep)13ft (4.0m)9s
Afternoon (27 Sep)11ft (3.5m)9s
Evening (27 Sep)10ft (3.0m)8s

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


Short Range Forecast

Heavy rain (total 38mm), heaviest during Mon night. Very mild (max 16°C on Wed morning, min 12°C on Sun night). Winds decreasing (strong winds from the NE on Sun afternoon, calm by Wed morning).

Sun
27
Monday
28
Tuesday
29
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
1
1
1
2
1
1
2
1
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)
3.5
ENE
9
3.5
ENE
9
3.5
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
9
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
2.5
ENE
8
2.3
ENE
8
2.1
ENE
8
1.8
ENE
8
1.6
ENE
8
1.2
E
8
1.2
E
9
1.2
E
9
1.2
E
9
1.1
E
9
Wave Graph
Metric surfscale
Energy kJ
2139
1672
1485
1313
1185
1344
1398
1452
1231
1164
1038
822
620
547
414
318
210
230
225
224
185
Wind (km/h)
45
NE
40
NE
40
NE
40
NE
40
NE
40
NE
40
NE
40
NE
40
NE
35
NE
35
NNE
30
NNE
30
NNE
25
N
20
NNW
20
NNW
15
NNW
10
N
10
NNE
5
N
5
N
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross
cross
glassy
cross
High Tide
12:03PM3.47m
00:29AM3.35m
12:44PM3.56m
1:13AM3.33m
1:27PM3.59m
Low Tide
6:18PM0.29m
6:32AM0.43m
7:02PM0.22m
7:15AM0.45m
7:49PM0.20m
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
mod rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
—
6:35
—
—
—
—
—
—
—
6:37
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:31
—
—
—
—
—
—
—
6:30
—
—
—
—
—
—
—
6:28
—
—
 mm
3
1
2
2
1
1
1
3
5
4
6
7
1
1
1
1
1
—
—
—
—
Temp °C
13
13
13
13
13
13
12
12
12
12
12
12
12
12
12
13
13
15
15
15
15
Feels °C
5
6
6
6
6
6
5
5
5
5
6
6
7
8
9
10
11
14
14
15
15
  • 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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