Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 1 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 (17 Jun):

  • Morning surf: Morning surf (17 Jun, local time) - 1ft (0.3m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (17 Jun, local time) - 1.5ft (0.4m), 7s period with SSE swell.
  • Evening surf: Evening surf (17 Jun, local time) - 2.5ft (0.7m), 4s period with SSE swell.

The current surf forecast for Costellos at 9PM is: 0.7m 4s primary swell from a South-southeast direction and 0.2m 7s secondary swell from a East direction, 0.1m 16s secondary swell from a East direction (forecast issued at 01:00pm June 17). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (17 Jun)1ft (0.3m)7s
Afternoon (17 Jun)1.5ft (0.4m)7s
Evening (17 Jun)2.5ft (0.7m)4s

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 26°C on Fri afternoon, min 16°C on Wed night). Winds increasing (light winds from the SSW on Wed night, strong winds from the SSE by Thu afternoon).

Wed
17
Thursday
18
Friday
19
Sat
20
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
2 AM
5 AM
8 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
3
2
2
1
0
1
0
0
0
0
1
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)
0.3
SE
7
0.4
SSE
7
0.1
E
16
0.8
SSE
4
0.8
SSE
4
0.7
SSE
4
0.7
SSE
4
0.7
SSE
4
1.5
SSE
5
2.3
SSE
6
2.2
SSE
7
2.2
SSE
7
1.8
SSE
8
1.4
SSE
7
1
SSE
7
0.8
SSE
8
0.7
SE
8
0.6
SSE
8
0.5
SE
8
0.5
SE
8
0.4
SSE
9
0.5
SSE
8
0.4
SSE
8
0.4
SE
8
Wave Graph
Metric surfscale
Energy kJ
7
18
10
16
25
20
18
17
108
440
433
526
353
220
114
74
60
39
28
28
30
40
28
18
Wind (km/h)
10
SE
15
SE
15
SE
15
SSE
10
SSW
10
S
15
S
20
SSE
30
SSE
40
SSE
20
SSW
10
SW
15
WSW
25
W
20
WSW
25
W
25
W
25
W
25
W
30
W
25
W
25
W
25
W
25
W
Wind State
cross-on
cross-on
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
High Tide
1:44PM3.46m
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
part cloud
clear
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
thunderstorm
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<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
2
2
Temp °C
21
21
21
19
19
18
16
17
18
19
22
21
19
19
19
19
22
25
26
22
19
18
17
18
Feels °C
19
17
18
16
18
16
14
14
14
14
21
22
18
15
16
15
17
20
21
17
15
14
12
13
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
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
0.2
E
7
0.1
E
7
0.1
SE
14
1.9
SSE
7
1.8
SSE
8
1.4
SSE
7
1
SSE
7
0.8
SSE
8
0.7
SE
8
0.6
SSE
8
0.5
SE
8
0.5
SE
8
0.4
SSE
9
0.5
SSE
8
0.4
SSE
8
0.4
SE
8
Energy kJ
7
4
4
4
3
3
4
4
4
1
8
387
353
220
114
74
60
39
28
28
30
40
28
18
Swell 2
Height (m)
Direction
Period (s)
0.2
E
7
0.1
E
16
0.1
E
16
0.1
E
16
0.1
SE
7
0.1
E
15
0.2
SSE
7
0.1
E
15
0.1
SE
14
0.1
E
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
Energy kJ
4
5
5
5
2
4
5
4
8
4
8
8
8
8
8
8
7
7
7
7
7
7
7
7
Swell 3
Height (m)
Direction
Period (s)
0.1
E
16
0.1
S
16
0.1
SE
16
0.1
E
16
0.1
E
15
0.1
E
15
0.1
E
12
0.1
SE
15
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
E
7
0.1
E
6
Energy kJ
5
5
10
5
4
4
3
8
4
1
1
8
7
7
7
1
7
7
1
1
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
4
0.4
SSE
7
0.5
SSE
3
0.8
SSE
4
0.8
SSE
4
0.7
SSE
4
0.7
SSE
4
0.7
SSE
4
1.5
SSE
5
2.3
SSE
6
2.2
SSE
7
2.2
SSE
7
0.5
WSW
3
0.6
WSW
4
0.6
WSW
4
0.5
WSW
4
0.4
WSW
3
0.4
WSW
3
0.4
WSW
3
0.7
WSW
4
0.5
WSW
4
0.5
WSW
3
0.6
W
3
Energy kJ
3
18
5
16
25
20
18
17
108
440
433
526
6
8
10
7
4
3
4
11
7
6
8
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
3
2
1
3
2
2
1
1
1
1
2
2
3
1
1
1
Distance (km)
910
916
916
1770
501
501
501
1695
3531
3544
588
0
0
0
0
172
0
38
391
172
165
0
172
172
Best forecast wave conditions in New Hampshire
Rating
(10 max)
3
2
2
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
1
3
4
4
3
4
4
1
3
2
2
3
3
3
2
2
2
3
2
3
3
Header Global
Rating
(10 max)
4
4
5
5
5
9
9
9
5
5
5
5
6
6
6
5
9
5
4
5
4
4
4
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

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