Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 1 am 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
14.2° C

Slightly cooler than normal

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 (21 Jun):

  • Morning surf: Morning surf (21 Jun, local time) - 0.5ft (0.2m), 9s period with SSE swell.
  • Afternoon surf: Afternoon surf (21 Jun, local time) - 0.5ft (0.2m), 8s period with SSE swell.
  • Evening surf: Evening surf (21 Jun, local time) - 0.5ft (0.2m), 8s period with SSE swell.

The current surf forecast for Costellos at 7AM is: 0.3m 9s primary swell from a South-southeast direction and 0.1m 12s secondary swell from a East direction (forecast issued at 01:00am June 21). The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (21 Jun)0.5ft (0.2m)9s
Afternoon (21 Jun)0.5ft (0.2m)8s
Evening (21 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 46mm), heaviest during Mon night. Warm (max 23°C on Sun afternoon, min 15°C on Mon afternoon). Wind will be generally light.

Sunday
21
Monday
22
Tuesday
23
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
5 PM
8 PM
11 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
10
0.3
SSE
10
0.3
SSE
9
0.2
SSE
9
0.2
SSE
9
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.1
SE
12
0.1
SE
12
0.2
SSE
7
0.2
SSE
7
0.2
SSE
7
0.2
SSE
6
0.2
SSE
6
0.4
SE
4
0.6
SSE
3
0.9
SSE
4
0.9
SSE
5
0.9
SSE
5
0.8
SSE
5
0.7
SE
5
0.7
SE
5
0.6
SE
6
Wave Graph
Metric surfscale
Energy kJ
9
18
17
8
7
6
6
6
6
5
5
5
5
5
5
5
7
34
39
42
37
30
29
25
Wind (km/h)
10
W
10
WSW
10
WNW
10
NW
0
SE
5
SSE
5
SSW
10
W
10
W
10
WNW
5
WNW
10
SSE
10
SSW
10
SW
10
SE
15
SE
10
E
5
ESE
10
NNW
10
NNW
10
N
10
ESE
10
SSE
5
WSW
Wind State
off
off
off
cross-off
glassy
cross
cross-off
off
off
cross-off
glassy
cross
cross-off
cross-off
cross-on
cross-on
on
on
cross-off
cross-off
cross
on
cross
cross-off
High Tide
4:49AM3.28m
5:26PM3.23m
5:49AM3.08m
6:21PM3.17m
6:48AM2.93m
7:14PM3.12m
Low Tide
11:07AM0.46m
11:39PM0.66m
12:01PM0.64m
00:39AM0.72m
12:55PM0.79m
part cloud
part cloud
part cloud
cloud
thunderstorm
rain showers
clear
clear
clear
clear
cloud
cloud
cloud
light rain
mod rain
mod rain
mod rain
mod rain
mod rain
light rain
part cloud
part cloud
part cloud
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>
8:24
8:24
8:24
 mm
1
1
2
6
9
6
9
7
5
Temp °C
16
15
18
22
23
21
21
19
18
17
18
21
22
15
15
15
15
16
15
16
18
19
17
18
Feels °C
15
13
17
21
23
21
21
18
17
16
18
21
21
14
15
14
14
17
15
16
18
19
17
19
Swell 1
Height (m)
Direction
Period (s)
0.2
SSE
10
0.3
SSE
10
0.3
SSE
9
0.2
SSE
9
0.2
SSE
9
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
5
0.2
SSE
5
0.2
S
5
0.2
SSE
7
0.2
SSE
7
0.2
SSE
6
0.2
SSE
3
0.1
SE
6
0.1
SE
11
0.1
SE
11
0.1
SE
8
0.9
SSE
5
0.8
SSE
5
0.7
SE
5
0.7
SE
5
0.6
SE
6
Energy kJ
9
18
17
8
7
6
6
6
3
2
2
5
4
4
1
2
5
5
3
42
37
30
29
25
Swell 2
Height (m)
Direction
Period (s)
0.1
E
12
0.1
SE
12
0.1
E
12
0.1
E
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
7
0.1
SE
7
0.2
SSE
7
0.1
SE
11
0.1
SE
11
0.2
SSE
6
0.1
SE
11
0.1
SE
8
0.1
SE
11
0.1
SE
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
Energy kJ
3
6
3
3
6
6
6
6
2
2
5
5
5
4
5
3
5
5
2
2
2
2
Swell 3
Height (m)
Direction
Period (s)
0.1
S
12
0.1
S
12
0.1
SE
12
0.1
S
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
11
0.1
SE
11
0.1
E
11
0.1
SE
11
Energy kJ
3
3
6
3
6
5
5
5
5
2
4
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
2
0.4
SE
4
0.6
SSE
3
0.9
SSE
4
0.9
SSE
5
0.3
NNE
2
0.3
NNE
3
Energy kJ
1
3
7
34
39
1
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
Distance (km)
131
163
163
182
464
493
493
247
186
247
625
3368
2754
802
537
2590
537
198
38
171
163
168
162
162
Best forecast wave conditions in New Hampshire
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
1
2
2
3
3
3
2
2
1
1
2
2
3
3
3
3
1
1
2
2
Header Global
Rating
(10 max)
9
8
8
7
7
7
6
6
5
7
6
5
5
5
5
5
6
5
5
5
5
6
8
8
  • 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