Surf Break

Lat Long: 42.95° N 70.78° W

Costellos 48 hour detailed Surf Forecast

Issued: 7 am 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
15.7°C
0.0° 

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 (25 Sep):

  • Morning surf: Morning surf (25 Sep, local time) - 8ft (2.5m), 11s period with ESE swell.
  • Afternoon surf: Afternoon surf (25 Sep, local time) - 8ft (2.5m), 11s period with ESE swell.
  • Evening surf: Evening surf (25 Sep, local time) - 10ft (3.0m), 11s period with ESE swell.

The current surf forecast for Costellos at 11AM is: 2.5m 11s primary swell from a East-southeast direction and 0.8m 12s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a North-northeast direction (forecast issued at 07:00am September 25). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (25 Sep)8ft (2.5m)11s
Afternoon (25 Sep)8ft (2.5m)11s
Evening (25 Sep)10ft (3.0m)11s

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


Short Range Forecast

Heavy rain (total 39mm), heaviest during Sat night. Very mild (max 16°C on Fri afternoon, min 11°C on Fri morning). Winds increasing (moderate winds from the NNE on Fri morning, strong winds from the NE by Sat night).

Friday
25
Saturday
26
Sunday
27
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
2
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)
2.3
ESE
11
2.5
ESE
11
2.5
ESE
11
2.5
ESE
11
3
ESE
11
3
ESE
11
3
ESE
11
3
ESE
11
3.5
ESE
10
3.5
E
10
3.5
E
10
3.5
E
10
3.5
E
10
3.5
E
10
3.5
E
10
3.5
E
10
3.5
E
9
3.5
E
9
3.5
E
9
3.5
E
9
3.5
ENE
9
3.5
ENE
9
3
E
9
Wave Graph
Metric surfscale
Energy kJ
1261
1554
1645
1663
2123
1957
2015
2339
2786
2623
2438
2274
2307
2105
2259
2358
2105
2048
2136
2023
1791
1791
1517
Wind (km/h)
20
NNE
25
NNE
30
NE
30
NE
30
NE
30
ENE
25
NE
30
NE
30
NE
30
NE
35
NNE
40
NE
40
NE
45
NE
45
NE
45
NE
40
NE
45
NE
40
NE
40
NE
40
NE
35
NE
35
NE
Wind State
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:46AM3.17m
11:04PM3.25m
11:24AM3.33m
11:46PM3.32m
12:03PM3.47m
Low Tide
4:36AM0.59m
4:54PM0.57m
5:14AM0.51m
5:36PM0.41m
5:52AM0.45m
6:18PM0.29m
part cloud
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
—
—
—
—
—
—
—
6:33
—
—
—
—
—
—
—
6:35
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:35
—
—
—
—
—
—
—
6:34
—
—
—
—
—
—
—
6:31
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
1
5
5
10
5
1
1
2
2
1
1
1
Temp °C
12
11
14
16
16
16
16
15
14
14
15
16
13
13
13
13
13
13
13
13
12
13
12
Feels °C
8
6
8
10
10
10
11
9
8
8
7
7
5
5
5
4
5
5
5
6
4
7
5
  • 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.


Nearest locationNearest