Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 7 pm 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
15.5° C

Slightly warmer than usual

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 (20 Jun):

  • Afternoon surf: Afternoon surf (20 Jun, local time) - 0.5ft (0.2m), 8s period with SSE swell.
  • Evening surf: Evening surf (20 Jun, local time) - 0.5ft (0.2m), 8s period with SSE swell.

The current surf forecast for Costellos at 11PM is: 0.2m 8s primary swell from a South-southeast direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 07:00pm June 20). The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (20 Jun)--
Afternoon (20 Jun)0.5ft (0.2m)8s
Evening (20 Jun)0.5ft (0.2m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 26mm), heaviest during Mon night. Warm (max 22°C on Sun morning, min 14°C on Mon night). Wind will be generally light.

Sat
20
Sunday
21
Monday
22
Tue
23
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
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)
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
10
0.2
SSE
10
0.3
SSE
9
0.2
SSE
9
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
7
0.1
SE
12
0.1
SE
12
0.2
SSE
7
0.2
SSE
7
0.2
SSE
6
0.2
SSE
6
0.4
ESE
3
0.4
ESE
3
0.5
SE
4
0.7
SE
6
0.7
SSE
6
0.6
SSE
6
Wave Graph
Metric surfscale
Energy kJ
7
6
6
9
9
17
8
7
6
6
6
6
5
5
5
5
5
5
5
5
9
31
29
22
Wind (km/h)
20
NW
10
WNW
15
WSW
15
W
10
W
10
WNW
5
N
10
E
10
ENE
10
S
10
W
10
WNW
10
WNW
5
WNW
5
SSE
20
SSW
10
SSW
10
SSE
10
E
10
NE
10
NNE
10
N
10
NNE
10
E
Wind State
cross-off
cross-off
off
off
off
off
glassy
on
cross-on
cross
off
off
cross-off
glassy
glassy
cross-off
cross-off
cross-on
on
cross-on
cross
cross
cross
on
High Tide
4:30PM3.31m
4:49AM3.28m
5:26PM3.23m
5:49AM3.08m
6:21PM3.17m
6:48AM2.93m
Low Tide
10:39PM0.57m
11:07AM0.46m
11:39PM0.66m
12:01PM0.64m
00:39AM0.72m
12:55PM0.79m
part cloud
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
cloud
cloud
cloud
light rain
light rain
mod rain
light rain
light rain
light rain
light rain
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>
8:24
8:24
8:24
8:24
 mm
1
2
4
2
10
4
1
1
1
Temp °C
23
20
17
15
15
18
22
19
19
19
19
17
16
17
21
20
15
15
15
15
14
15
16
19
Feels °C
19
19
16
13
14
16
22
18
18
18
18
16
15
17
21
17
14
15
15
15
13
15
16
19
Swell 1
Height (m)
Direction
Period (s)
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
10
0.2
SSE
10
0.3
SSE
9
0.2
SSE
9
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
5
0.2
SSE
5
0.2
SSE
5
0.2
SSE
7
0.2
SSE
7
0.2
SSE
6
0.2
SSE
6
0.1
SE
6
0.4
ESE
3
0.5
SE
4
0.7
SE
6
0.7
SSE
6
0.6
SSE
6
Energy kJ
7
6
6
9
9
17
8
7
6
6
6
3
2
2
5
4
4
4
2
4
9
31
29
22
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
E
12
0.1
SE
10
0.1
E
12
0.1
SE
12
0.1
E
12
0.1
E
12
0.1
SE
12
0.1
SE
12
0.2
SSE
7
0.1
SE
7
0.1
SE
7
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
6
0.2
SSE
6
0.1
SE
11
0.4
NE
3
0.3
NE
3
Energy kJ
6
3
4
3
6
3
3
6
6
5
2
2
5
5
5
5
2
3
5
3
2
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
S
12
0.1
S
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.2
E
4
Energy kJ
6
3
3
3
3
3
6
6
5
5
5
5
5
5
5
1
Wind waves
Height (m)
Direction
Period (s)
0.6
NNW
4
0.4
NW
3
0.3
W
2
0.4
ESE
3
0.4
NE
3
0.4
NE
3
0.4
NE
3
Energy kJ
9
3
1
2
2
4
3
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
1
2
2
1
1
1
1
1
2
1
1
2
1
1
1
1
1
1
Distance (km)
134
171
131
131
163
182
182
493
493
241
168
163
247
247
3535
186
425
632
364
198
179
129
162
162
Best forecast wave conditions in New Hampshire
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
3
2
1
1
3
3
3
1
2
2
2
3
3
2
2
1
2
2
1
3
3
2
3
1
Header Global
Rating
(10 max)
5
9
9
9
8
8
7
7
7
6
6
6
7
6
5
5
5
5
5
6
5
5
6
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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