Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 7 pm 17 Jun 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
16.6° C

2.2°C warmer than normal for this time of year

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 (18 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 2ft (0.6m), 4s period with S swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 7ft (2.1m), 6s period with SSE swell.
  • Evening surf: Evening surf (18 Jun, local time) - 7ft (2.2m), 7s period with SSE swell.

The current surf forecast for Costellos at 12AM is: 0.6m 4s primary swell from a South-southeast direction and 0.2m 7s secondary swell from a East direction, 0.2m 7s secondary swell from a South-southeast direction (forecast issued at 07:00pm June 17). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (18 Jun)2ft (0.6m)4s
Afternoon (18 Jun)7ft (2.1m)6s
Evening (18 Jun)7ft (2.2m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 4mm), mostly falling on Thu afternoon. Warm (max 25°C on Fri afternoon, min 16°C on Wed night). Winds increasing (light winds from the SW on Wed night, fresh winds from the WNW by Sat morning).

Wed
17
Thursday
18
Friday
19
Sat
20
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
2 AM
5 AM
8 AM
11 AM
2 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
3
2
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
7
0.6
SSE
4
0.7
SSE
4
0.6
SSE
4
0.6
S
4
0.6
S
4
1
SSE
4
1.9
SSE
6
2.5
SSE
7
2.2
SSE
7
1.6
SSE
7
1.3
SSE
7
1.1
SSE
7
0.8
SSE
8
0.7
SE
8
0.6
SSE
8
0.5
SE
7
0.5
SE
7
0.4
SSE
8
0.5
SSE
8
0.5
SSE
8
0.3
SSE
8
0.3
SSE
8
0.2
SSE
8
Wave Graph
Metric surfscale
Energy kJ
18
8
17
14
12
10
35
246
580
498
264
173
131
74
64
40
27
27
23
37
39
14
14
7
Wind (km/h)
15
SSE
15
SE
5
SW
10
S
10
S
15
S
25
SSE
30
SSE
30
SSW
10
SSW
10
WSW
25
WSW
25
W
25
WSW
25
W
30
W
20
W
25
WSW
25
W
25
W
25
W
30
W
35
WNW
30
WNW
Wind State
cross-on
cross-on
cross-off
cross
cross
cross
cross
cross
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
1:57AM3.84m
2:39PM3.43m
2:54AM3.69m
3:34PM3.38m
3:51AM3.49m
Low Tide
7:43PM0.32m
8:24AM-0.04m
8:41PM0.39m
9:18AM0.10m
9:39PM0.48m
10:13AM0.27m
part cloud
clear
cloud
cloud
part cloud
cloud
cloud
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:03
5:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:23
8:24
8:24
 mm
1
1
1
1
Temp °C
21
20
19
18
16
16
18
19
22
22
19
20
18
19
22
25
25
22
19
17
17
18
21
23
Feels °C
18
18
18
16
15
14
14
15
19
23
19
16
13
14
17
20
21
17
14
12
12
13
15
17
Swell 1
Height (m)
Direction
Period (s)
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.1
SE
14
1.9
SSE
7
1.6
SSE
7
1.3
SSE
7
1.1
SSE
7
0.8
SSE
8
0.7
SE
8
0.6
SSE
8
0.5
SE
7
0.5
SE
7
0.4
SSE
8
0.5
SSE
8
0.5
SSE
8
0.3
SSE
8
0.3
SSE
8
0.2
SSE
8
Energy kJ
4
4
3
4
4
4
4
4
8
349
264
173
131
74
64
40
27
27
23
37
39
14
14
7
Swell 2
Height (m)
Direction
Period (s)
0.1
E
16
0.1
E
16
0.2
SSE
7
0.2
SSE
7
0.2
SSE
7
0.2
SSE
7
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
E
13
Energy kJ
5
5
4
5
5
5
8
8
8
8
8
8
8
8
7
7
7
7
7
7
7
7
7
3
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
16
0.1
E
16
0.1
E
15
0.1
E
15
0.1
E
15
0.1
SE
15
0.1
E
14
0.1
E
14
0.1
E
7
0.1
E
7
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
13
0.1
E
7
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
Energy kJ
10
5
4
4
4
8
4
4
1
1
8
7
7
7
1
7
7
7
7
7
7
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
7
0.6
SSE
4
0.7
SSE
4
0.6
SSE
4
0.6
S
4
0.6
S
4
1
SSE
4
1.9
SSE
6
2.5
SSE
7
2.2
SSE
7
0.5
SW
3
0.6
WSW
4
0.7
WSW
4
0.6
WSW
4
0.5
SW
4
0.4
WSW
3
0.4
WSW
3
0.5
SW
4
0.5
WSW
4
0.6
WSW
4
0.6
W
4
0.6
W
4
0.6
WNW
3
Energy kJ
18
8
17
14
12
10
35
246
580
498
4
8
11
9
6
4
4
7
8
10
9
9
7
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
2
1
3
2
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
911
911
916
916
501
1610
801
3536
680
0
0
8
8
178
8
391
38
38
134
172
172
179
442
416
Best forecast wave conditions in New Hampshire
Rating
(10 max)
3
2
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
4
4
4
4
3
1
3
4
3
4
4
3
1
2
2
2
2
2
3
4
1
Header Global
Rating
(10 max)
5
5
5
9
9
9
5
5
5
5
6
6
6
4
8
4
4
6
4
4
4
5
5
9
  • 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

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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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