Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 7 am Sunday 24 May 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Costellos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Costellos sea temperature is
11.1° C
(Which is slightly warmer than usual)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 11AM is: 0.5m 4s primary swell from a Southeast direction and 0.2m 9s secondary swell from a East-southeast direction (forecast issued at 07:00am May 24). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (24 May)1.5ft (0.5m)4s
Afternoon (24 May)1.5ft (0.5m)4s
Evening (24 May)2ft (0.6m)5s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 19mm), heaviest on Sun night. Warm (max 22°C on Mon afternoon, min 7°C on Sun afternoon). Wind will be generally light.

Sunday
24
Monday
25
Tuesday
26
Wed
27
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
0
0
0
2
2
2
2
2
2
1
0
1
0
0
0
0
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.3
SE
9
0.5
SE
4
0.5
SE
4
0.5
SE
4
0.6
SE
5
0.6
SSE
5
1
SE
5
1.3
SE
6
1.7
SE
7
1.8
SE
7
1.7
SE
8
1.6
SE
8
1.4
SE
8
1.3
SE
8
1.3
SE
8
1.3
SE
8
1.2
SE
8
1.2
SE
8
1.1
SE
8
1.1
SE
8
1.1
SE
8
0.9
SE
8
0.8
SE
8
0.6
SE
8
Wave Graph
Metric surfscale
Energy kJ
14
8
9
9
14
17
47
115
263
365
344
319
270
244
216
216
192
192
167
163
138
101
69
45
Wind (km/h)
5
SSE
5
SE
10
ESE
5
SSE
15
ENE
20
ENE
20
E
20
ESE
10
E
0
NW
10
WNW
10
W
10
WNW
10
WNW
10
NW
10
N
5
NNE
0
NE
10
SE
15
SSE
20
SSE
20
S
10
SW
15
WSW
cross-on
cross-on
on
cross-on
cross-on
on
on
cross-on
on
glassy
cross-off
off
off
cross-off
cross-off
cross
cross-on
glassy
cross-on
cross-on
cross
cross
cross-off
cross-off
High Tide
6:16AM3.16m
6:56PM3.14m
7:19AM3.05m
7:51PM3.15m
8:17AM2.97m
8:41PM3.17m
Low Tide
12:36PM0.56m
1:09AM0.73m
1:32PM0.67m
2:08AM0.71m
2:24PM0.75m
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:09
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:08
8:08
8:09
1
2
3
3
2
2
3
3
Temp °C
11
10
9
8
7
8
10
10
10
11
10
14
22
20
16
14
14
14
16
18
19
15
17
18
9
7
6
6
3
3
6
6
8
11
8
12
21
19
15
13
13
14
14
15
16
12
16
16
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
9
0.5
SE
4
0.5
SE
4
0.5
SE
4
0.6
SE
5
0.6
SSE
5
0.1
SE
9
0.1
E
18
0.1
E
17
1.8
SE
7
1.7
SE
8
1.6
SE
8
1.4
SE
8
1.3
SE
8
1.3
SE
8
1.3
SE
8
1.2
SE
8
1.2
SE
8
1.1
SE
8
1.1
SE
8
1.1
SE
8
0.9
SE
8
0.8
SE
8
0.6
SE
8
Energy kJ
14
8
9
9
14
17
3
6
6
365
344
319
270
244
216
216
192
192
167
163
138
101
69
45
Swell 2
Height (m)
Direction
Period (s)
0.1
E
12
0.2
ESE
9
0.2
ESE
9
0.1
SE
9
0.1
SE
9
0.1
SE
9
0.1
E
12
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.7
SSE
5
Energy kJ
3
8
8
3
3
3
3
5
5
5
5
5
5
5
5
5
4
4
4
4
4
22
Swell 3
Height (m)
Direction
Period (s)
0.1
E
18
0.1
SE
7
0.1
SE
7
0.1
E
13
0.1
SE
12
0.1
E
18
0.1
S
15
0.1
S
15
0.1
E
15
Energy kJ
6
2
2
3
6
6
4
4
4
Wind waves
Height (m)
Direction
Period (s)
0.5
SE
4
0.4
E
3
1
SE
5
1.3
SE
6
1.7
SE
7
0.5
S
3
0.8
SSE
4
0.8
S
5
Energy kJ
7
2
47
115
263
5
24
27
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
3
3
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
Distance (km)
787
787
565
563
492
457
186
172
69
0
0
0
0
0
0
3
5
0
182
182
198
198
0
0
Best forecast wave conditions in New Hampshire
Rating
(10 max)
2
2
2
2
2
2
2
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
2
3
3
3
3
2
2
2
4
4
5
2
9
9
9
1
3
1
1
4
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
5
4
4
4
4
4
5
6
9
9
9
6
7
7
7
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

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.


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