Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Issued: 7 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
17.6° 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 (05 Jul):

  • Morning surf: Morning surf (05 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (05 Jul, local time) - 1.5ft (0.4m), 8s period with SE swell.
  • Evening surf: Evening surf (05 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.

The current surf forecast for Costellos at 2AM is: 0.4m 9s primary swell from a Southeast direction and 0.3m 3s secondary swell from a North-northeast direction (forecast issued at 07:00pm July 04). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (05 Jul)1.5ft (0.4m)9s
Afternoon (05 Jul)1.5ft (0.4m)8s
Evening (05 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

Heavy rain (total 31mm), heaviest during Tue morning. Warm (max 27°C on Sat night, min 15°C on Tue morning). Wind will be generally light.

Sat
4
Sunday
5
Monday
6
Tue
7
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)
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
1
SE
4
0.9
SE
5
1.3
ESE
5
1.7
ESE
6
2
ESE
7
Wave Graph
Metric surfscale
Energy kJ
21
21
21
21
22
23
18
18
18
18
23
23
23
24
25
25
25
24
24
36
37
86
213
349
Wind (km/h)
15
NW
15
NW
10
N
10
NW
10
NNW
10
NNE
10
ESE
15
SE
20
SE
15
S
10
S
5
SE
5
S
10
SSE
20
SSE
15
SE
15
SE
10
ESE
15
SE
20
ESE
25
E
25
ENE
25
ENE
30
ENE
Wind State
cross-off
cross-off
cross
cross-off
cross-off
cross
on
cross-on
cross-on
cross
cross
cross-on
glassy
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
High Tide
3:02PM2.95m
3:09AM3.05m
3:42PM2.97m
3:54AM2.97m
4:25PM3.01m
4:42AM2.90m
Low Tide
9:02PM0.88m
9:28AM0.68m
9:47PM0.88m
10:08AM0.74m
10:36PM0.86m
10:53AM0.79m
part cloud
cloud
cloud
clear
part cloud
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:24
8:23
8:23
 mm
2
7
10
5
3
Temp °C
31
27
25
22
21
21
23
23
23
21
21
20
20
20
19
19
18
18
17
16
16
15
15
15
Feels °C
30
27
25
21
20
20
22
21
20
19
21
21
22
21
17
17
17
17
16
14
13
12
11
11
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
10
0.4
SSE
4
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.1
E
10
0.4
SE
10
0.3
SE
10
0.2
ESE
10
1.1
SE
7
Energy kJ
21
21
21
21
22
23
18
18
18
18
23
5
23
24
25
25
25
24
24
2
24
15
9
115
Swell 2
Height (m)
Direction
Period (s)
0.2
SSE
5
0.2
W
3
0.4
NE
4
0.2
NNE
4
0.1
SE
6
0.1
SE
6
0.1
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.1
E
10
0.1
E
10
Energy kJ
2
1
3
1
2
1
4
23
25
25
2
2
Swell 3
Height (m)
Direction
Period (s)
0.1
S
7
0.1
S
7
0.1
SE
6
0.1
SE
6
0.1
SE
6
0.1
E
10
Energy kJ
1
1
2
2
1
2
Wind waves
Height (m)
Direction
Period (s)
0.4
NW
3
0.2
NNW
3
0.3
NNE
3
0.3
NNE
4
0.2
E
3
0.4
SSE
3
0.5
SSE
3
0.5
SSE
4
0.4
SSE
4
0.4
SE
4
0.4
SE
4
0.5
SE
4
0.4
SSE
4
0.4
SSE
4
0.5
SE
5
1
SE
4
0.9
SE
5
1.3
ESE
5
1.7
ESE
6
2
ESE
7
Energy kJ
2
1
1
2
1
3
6
7
5
3
5
8
7
8
10
36
37
86
213
349
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
618
2570
550
442
619
1742
642
3536
1908
3616
601
442
916
1297
1297
1782
911
880
603
537
333
186
614
192
Best forecast wave conditions in New Hampshire
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
2
2
1
1
2
1
3
1
1
1
1
1
3
3
3
2
2
1
3
3
3
2
1
Header Global
Rating
(10 max)
5
5
9
9
9
8
7
6
5
5
6
5
5
5
9
8
8
8
7
8
5
5
5
7
  • 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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