Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 7 am 30 Jun 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
15.8° 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 (30 Jun):

  • Morning surf: Morning surf (30 Jun, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (30 Jun, local time) - 2.5ft (0.7m), 8s period with SSE swell.
  • Evening surf: Evening surf (30 Jun, local time) - 3.5ft (1.0m), 5s period with SSE swell.

The current surf forecast for Costellos at 2PM is: 0.7m 8s primary swell from a South-southeast direction and 0.2m 10s secondary swell from a East-southeast direction, 0.2m 10s secondary swell from a East-southeast direction (forecast issued at 07:00am June 30). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (30 Jun)1.5ft (0.4m)9s
Afternoon (30 Jun)2.5ft (0.7m)8s
Evening (30 Jun)3.5ft (1.0m)5s

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 3mm), mostly falling on Tue night. Warm (max 37°C on Thu afternoon, min 19°C on Tue night). Wind will be generally light.

Tuesday
30
Wednesday
1
Thursday
2
Fri
3
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
2 AM
Rating
(10 max)
0
0
0
0
0
0
1
0
0
1
0
1
1
2
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
9
0.4
SE
8
0.7
SSE
8
0.4
SE
8
0.9
SSE
5
1.1
SSE
5
1
S
5
0.9
S
5
0.9
SSE
5
0.8
SSE
5
0.8
SSE
6
0.4
SE
10
1.6
S
6
1.6
S
6
1
S
6
0.8
S
5
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.3
SE
9
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
27
27
24
58
17
37
66
53
40
37
37
40
33
190
206
71
37
26
22
22
21
21
13
13
Wind (km/h)
10
SW
5
SW
10
SSE
15
SE
20
SSE
15
S
15
SW
15
SW
15
SW
15
SW
15
SW
5
SSW
15
SSW
10
WSW
15
SW
15
WSW
15
WSW
15
W
15
WNW
10
WNW
10
WNW
10
WNW
15
WNW
10
W
Wind State
cross-off
cross-off
cross
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
off
off
off
High Tide
12:23PM2.91m
00:27AM3.29m
1:04PM2.93m
1:07AM3.27m
1:44PM2.94m
1:48AM3.22m
Low Tide
6:13AM0.51m
6:15PM0.86m
6:53AM0.50m
6:57PM0.85m
7:33AM0.52m
7:38PM0.85m
clear
clear
cloud
cloud
part cloud
clear
clear
clear
light rain
part cloud
clear
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:25
8:24
8:24
8:24
 mm
3
Temp °C
20
20
26
27
27
26
23
21
19
21
30
33
35
32
28
26
25
29
34
37
37
34
31
28
Feels °C
20
21
26
26
25
26
24
20
19
22
32
36
36
35
29
28
27
32
35
38
38
36
32
30
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
9
0.4
SE
8
0.2
ESE
10
0.4
SE
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.9
SSE
5
0.8
SSE
5
0.4
SE
10
0.4
SE
10
1.2
SSE
6
1.4
SSE
6
1
S
6
0.8
S
5
0.7
S
5
0.6
S
6
0.5
S
6
0.4
SSE
5
0.4
SSE
5
0.4
SSE
6
0.4
SSE
6
Energy kJ
27
27
24
10
17
24
23
23
23
37
37
24
24
107
149
71
37
26
21
15
9
8
12
12
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
10
0.2
ESE
11
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.3
SE
9
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.3
SE
9
0.3
SE
9
Energy kJ
11
11
10
10
10
12
9
10
9
22
22
22
22
21
21
13
13
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
10
0.1
SE
8
0.2
WNW
3
0.1
E
16
0.1
E
16
0.1
E
16
Energy kJ
10
3
1
5
5
5
Wind waves
Height (m)
Direction
Period (s)
0.7
SSE
8
0.8
SSE
4
0.9
SSE
5
1.1
SSE
5
1
S
5
0.9
S
5
0.4
SW
3
0.8
SSE
6
0.8
SSE
5
1.6
S
6
1.6
S
6
0.4
SW
3
1.1
S
6
0.5
WSW
3
0.4
WSW
3
0.3
W
2
Energy kJ
58
16
37
66
53
40
3
40
33
190
206
3
77
7
3
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
Distance (km)
14
14
395
618
618
501
0
641
38
0
38
0
0
0
38
0
5
38
350
1049
1293
203
171
163
Best forecast wave conditions in New Hampshire
Rating
(10 max)
1
1
1
1
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
3
1
2
1
2
2
3
2
1
1
2
2
2
2
2
2
1
2
2
2
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
5
5
5
5
4
5
5
8
5
7
6
6
5
7
8
9
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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