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Surf Forecasts

Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 7 pm Sunday 20 Apr 2025 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
5.3° C
 (Which is normal for this time of year)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 8PM is: 0.3m 9s primary swell from a South-southeast direction (forecast issued at 07:00pm April 20). An open ocean swell of 0.1m 3s is not directed at the surf break, a second open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (20 Apr)--
Afternoon (20 Apr)1.5ft (0.4m)9s
Evening (20 Apr)1ft (0.3m)9s

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

Hourly12 Days
New Hampshire Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Mon
28
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SE
0.3
SSE
0.2
SSE
0.2
SSE
0.2
SSE
0.1
S
0.1
S
0.1
E
0.5
SSE
1.2
SSE
1
S
0.9
SSE
0.9
SSE
0.9
SSE
1
SSE
0.9
SE
0.9
SE
0.7
SE
0.6
SSE
0.4
SE
0.4
SE
0.4
SE
0.6
SE
0.6
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.8
ESE
0.9
SE
1
SE
1.3
SE
1.5
SSE
1.7
SSE
1.4
SE
1.2
SE
1.1
SE
0.8
SE
0.7
SE
0.7
SE
0.7
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.5
SE
Period(s) (?)9999987123555555666599988889988888999999988455667777777777777
Wave
Graph
(?)Metric surfscale
Energy (?)2116887214563523537365846513119202019434318182727252424242526272828282727258832418214822717314711877525454433333343427
Wind
(km/h)
25
NW
25
NW
15
NW
10
WNW
10
WNW
5
WNW
10
SE
20
SE
25
SE
20
SSW
20
S
15
S
15
SSE
10
S
5
WSW
10
SE
10
WNW
20
WNW
15
WNW
20
WNW
15
W
20
WNW
15
NW
10
NNW
10
ESE
10
SE
5
ESE
10
NNE
5
NNE
5
ENE
10
E
20
SE
15
ESE
10
ESE
5
SE
10
NE
5
ENE
10
ENE
10
E
15
ESE
15
ESE
10
SE
20
SSE
25
SSE
40
S
35
S
25
SSW
20
SSW
20
W
25
WNW
30
NW
25
NW
25
NW
30
NW
20
NW
25
NW
20
NW
15
NW
10
WNW
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		glasscross-
on		cross-
on		cross-
on		cross-
off		crosscrosscrosscrossglasscross-
on		cross-
off		offcross-
off		offoffoffcross-
off		cross-
off		oncross-
on		glasscross-
on		cross-
on		ononcross-
on		cross-
on		onglasscross-
on		cross-
on		ononcross-
on		oncross-
on		crosscross-
on		crosscrosscross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		off
High Tide
/ height (m)
5:27PM
2.60
5:34AM
2.88
6:24PM
2.67
6:35AM
2.92
7:21PM
2.82
7:36AM
3.02
8:15PM
3.04
8:35AM
3.16
9:07PM
3.30
9:32AM
3.32
9:57PM
3.55
10:27AM
3.45
10:47PM
3.77
11:20AM
3.55
11:37PM
3.91
Low Tide
/ height (m)
11:20PM
1.19
12:07PM
0.87
12:22AM
1.12
1:03PM
0.79
1:24AM
0.96
1:58PM
0.67
2:24AM
0.74
2:51PM
0.52
3:21AM
0.47
3:42PM
0.38
4:15AM
0.21
4:33PM
0.26
5:08AM
-0.00
5:24PM
0.19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Mon
28
Sunrise-----5:52-------5:50-------5:48-------5:47-------5:46-------5:43-------5:43------
Sunset7:30-------7:31-------7:32-------7:34-------7:35-------7:36-------7:37-------7:37---
clearclearclearclearclearclearclearclearcloudcloudcloudlight rainlight raincloudcloudpart cloudclearclearclearclearclearclearclearclearclearclearclearclearpart cloudclearclearclearclearclearpart cloudpart cloudpart cloudcloudcloudpart cloudcloudcloudcloudlight rainlight rainmod rainlight raincloudlight raincloudclearclearclearclearclearclearclearclearclearclear
Rain (mm)
-----------14------------------------------2573-5-----------
Temp. °C128555478811866812152016108771215131211988911111011988999111110121315161713875491315121110
Feels °C (?)410011321522251113171153317119996556677965555586557111315810-2-4258776
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

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.

View detailed surf forecast for Costellos at:
surf-forecast.com

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