Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 1 am 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
17.5° 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 (02 Jul):

  • Morning surf: Morning surf (02 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (02 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Evening surf: Evening surf (02 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.

The current surf forecast for Costellos at 5AM is: 0.7m 5s primary swell from a South direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 01:00am July 02). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (02 Jul)1.5ft (0.4m)9s
Afternoon (02 Jul)1.5ft (0.4m)9s
Evening (02 Jul)1.5ft (0.4m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Warm (max 37°C on Thu afternoon, min 20°C on Sat night). Wind will be generally light.

Thursday
2
Friday
3
Saturday
4
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)
1
1
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)
1.1
S
6
0.4
SE
9
0.4
SE
9
0.5
S
5
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.7
SSE
5
0.5
SSE
6
0.4
SE
9
0.4
SE
9
0.2
ESE
9
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
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
0.4
SE
9
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
80
28
22
13
21
21
21
25
18
21
21
8
14
15
23
23
22
22
22
22
21
21
21
21
Wind (km/h)
15
SW
10
SW
15
W
15
WNW
10
W
10
ESE
20
S
10
NW
10
W
15
W
15
WNW
15
NW
10
WNW
10
W
10
WNW
0
ENE
10
WSW
15
W
15
WNW
10
WNW
10
WNW
5
WNW
5
W
10
WNW
Wind State
cross-off
cross-off
off
cross-off
off
on
cross
cross-off
off
off
off
cross-off
off
off
off
glassy
cross-off
off
off
off
cross-off
glassy
off
cross-off
High Tide
1:07AM3.27m
1:44PM2.94m
1:48AM3.22m
2:23PM2.94m
2:28AM3.14m
3:02PM2.95m
Low Tide
7:33AM0.52m
7:38PM0.85m
8:11AM0.56m
8:19PM0.87m
8:49AM0.62m
9:02PM0.88m
clear
clear
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:24
8:24
 mm
1
Temp °C
26
26
28
34
37
31
26
28
26
25
27
32
35
36
33
24
25
25
26
31
32
29
28
25
Feels °C
28
29
30
35
38
32
26
31
28
26
28
32
34
37
35
28
27
27
27
32
32
30
29
26
Swell 1
Height (m)
Direction
Period (s)
0.9
SSE
6
0.7
S
5
0.6
S
5
0.5
S
5
0.4
SSE
5
0.4
SE
9
0.4
SE
9
0.7
SSE
5
0.5
SSE
6
0.4
SSE
5
0.3
SSE
5
0.2
ESE
9
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
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
0.4
SE
9
0.4
SE
9
Energy kJ
58
28
18
13
8
21
21
25
18
9
5
8
14
15
23
23
22
22
22
22
21
21
21
21
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
10
0.4
SE
9
0.4
SE
9
0.2
ESE
9
0.4
SE
9
0.1
S
11
0.1
E
16
0.2
ESE
9
0.3
SE
9
0.4
SE
9
0.4
SE
9
0.2
SSE
5
0.2
SSE
5
0.2
SSE
5
0.1
SE
5
0.3
SSE
4
0.2
SSE
4
0.2
SSE
5
0.2
SSE
5
0.2
SSE
5
0.2
SSE
5
Energy kJ
9
23
22
8
21
2
5
8
13
21
21
2
2
2
1
2
1
2
2
2
2
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
7
0.2
ESE
7
0.1
E
16
0.1
E
16
0.1
E
16
0.1
SE
7
0.2
SSE
7
0.1
SE
6
0.1
SE
6
0.1
SE
5
0.1
SE
5
0.2
SSE
5
0.1
S
7
Energy kJ
7
5
5
5
5
2
4
2
2
1
1
2
1
Wind waves
Height (m)
Direction
Period (s)
1.1
S
6
0.9
S
5
0.4
WSW
3
0.5
S
5
0.6
SSE
4
0.3
W
2
0.2
WNW
2
0.3
WNW
3
0.4
SSE
3
0.2
WNW
2
0.2
WSW
2
0.3
NW
2
0.5
NW
3
0.4
NNW
3
Energy kJ
80
47
4
13
15
1
1
1
3
1
1
1
5
4
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
0
0
177
251
1296
1296
618
171
38
182
199
227
557
618
395
165
227
168
247
227
501
501
501
458
Best forecast wave conditions in New Hampshire
Rating
(10 max)
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
7
7
6
6
7
7
8
9
9
6
7
5
5
5
5
5
7
5
5
5
5
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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