Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 7 pm Tuesday 28 Apr 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
7.2° C
(Which is slightly warmer than usual)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 3AM is: 1.9m 9s primary swell from a East-southeast direction (forecast issued at 07:00pm April 28). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (29 Apr)7ft (2.2m)10s
Afternoon (29 Apr)7ft (2.1m)10s
Evening (29 Apr)6.5ft (2.0m)10s

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 14mm), heaviest on Thu morning. Very mild (max 12°C on Fri morning, min 6°C on Tue night). Wind will be generally light.

Tue
28
Wednesday
29
Thursday
30
Fri
1
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
1
1
1
2
0
0
0
0
2
1
1
0
0
2
4
3
3
3
3
1
1
1
2
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.4
ESE
8
1.5
ESE
8
1.8
ESE
9
1.8
ESE
9
2.1
ESE
10
2.2
ESE
10
2.2
ESE
10
2.1
ESE
10
2
ESE
10
2
ESE
10
1.9
ESE
9
2.1
ESE
9
2.1
ESE
10
2.2
ESE
10
2.4
ESE
10
2.3
ESE
10
2.3
ESE
10
2.2
ESE
9
2
ESE
9
1.9
ESE
9
1.8
ESE
9
1.6
ESE
9
1.6
ESE
9
1.6
ESE
9
Wave Graph
Metric surfscale
Energy kJ
231
284
505
510
800
914
896
821
732
717
646
736
849
961
1058
1019
978
770
645
554
488
422
366
358
Wind (km/h)
15
ENE
10
NE
15
ENE
15
NNE
10
NNE
20
NE
20
NE
15
NE
15
NE
10
ENE
15
ESE
10
ESE
20
SSE
20
SSE
10
SSE
5
E
5
WNW
10
NW
10
NW
15
WNW
15
WNW
20
WNW
20
WNW
25
W
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
High Tide
9:58PM3.26m
10:24AM3.13m
10:39PM3.32m
11:08AM3.13m
11:18PM3.36m
11:50AM3.11m
Low Tide
3:44PM0.62m
4:14AM0.52m
4:28PM0.64m
4:58AM0.45m
5:08PM0.66m
5:39AM0.40m
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:39
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:39
7:40
7:42
7:43
1
2
3
3
4
1
Temp °C
7
7
6
6
6
6
6
6
7
7
7
8
9
9
9
11
11
10
9
8
7
7
12
11
2
3
2
2
2
2
2
2
3
5
4
5
5
5
7
11
11
8
6
4
3
1
7
4
Swell 1
Height (m)
Direction
Period (s)
1.4
ESE
8
1.5
ESE
8
1.6
ESE
8
1.8
ESE
9
2.1
ESE
10
2.2
ESE
10
2.2
ESE
10
2.1
ESE
10
2
ESE
10
2
ESE
10
1.9
ESE
9
2.3
ESE
10
2.3
ESE
10
2.2
ESE
9
2
ESE
9
1.9
ESE
9
1.8
ESE
9
1.6
ESE
9
1.6
ESE
9
1.6
ESE
9
Energy kJ
231
284
346
510
800
914
896
821
732
717
646
1019
978
770
645
554
488
422
366
358
Swell 2
Height (m)
Direction
Period (s)
0.1
E
11
Energy kJ
2
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.8
ESE
9
2.1
ESE
9
2.1
ESE
10
2.2
ESE
10
2.4
ESE
10
0.4
WNW
3
0.4
W
3
0.4
W
3
0.4
WNW
3
0.4
WNW
3
Energy kJ
505
736
849
961
1058
2
2
3
3
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
3
3
2
2
2
2
2
2
1
1
1
4
4
3
3
3
3
2
2
2
2
Distance (km)
39
39
39
5
5
39
39
39
39
39
98
179
198
171
60
0
0
0
0
0
5
5
5
0
Best forecast wave conditions in New Hampshire
Rating
(10 max)
3
3
4
3
3
3
3
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
3
3
3
4
3
2
2
2
4
3
3
4
4
3
3
3
3
2
2
2
2
Header Global
Rating
(10 max)
8
9
9
9
8
8
8
7
6
5
5
5
5
5
5
6
6
6
6
7
5
5
5
5
  • 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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