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Surf Forecasts:

Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 6 am Sunday 15 Feb 2026 EST
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
3.3° C
 (Which is normal for this time of year)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 1PM is: 0.6m 4s primary swell from a North-northeast direction and 0.1m 7s secondary swell from a South direction, 0.1m 9s secondary swell from a East direction (forecast issued at 06:00am February 15). The wind direction is predicted to be cross-shore.

Time (EST) & DateWave HeightWave Period
Morning (15 Feb)2.5ft (0.8m)4s
Afternoon (15 Feb)0.5ft (0.1m)9s
Evening (15 Feb)1ft (0.3m)4s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
15
Monday
16
Tuesday
17
Wed
18
4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
E
0.1
E
0.8
N
0.6
NNE
0.1
SE
0.1
SE
0.2
ENE
0.1
E
0.1
SE
0.1
SE
0.1
E
0.1
E
0.1
E
0.1
E
0.4
SE
0.4
SE
0.5
SE
0.6
SE
0.7
SE
0.8
ESE
1
SE
1.1
SE
1.1
ESE
1.2
ESE
Period(s) (?)10104498411881010994556689999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)22221633333332225914274284162198207248
Wind
(km/h)
15
W
20
NW
20
N
10
N
5
NE
5
E
5
NE
0
NE
5
NNE
10
NNE
10
NE
15
NE
10
NE
10
NE
5
N
5
NW
5
WSW
10
SSW
15
S
15
SSW
10
SW
10
SW
15
W
15
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off		crosscrosscross-
on		glasscross-
on		glasscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
off		glasscross-
off		crosscross-
off		cross-
off		cross-
off		offoff
High Tide
/ height (m)
9:27AM
3.18
10:02PM
2.92
10:10AM
3.29
10:41PM
3.07
10:51AM
3.38
11:19PM
3.21
Low Tide
/ height (m)
3:14AM
0.94
3:53PM
0.60
3:58AM
0.80
4:32PM
0.49
4:40AM
0.66
5:10PM
0.40
Sunday
15
Monday
16
Tuesday
17
Wed
18
Sunrise-6:41-------6:39-------6:37------
Sunset----5:13-------5:15-------5:15---
clear
clear
clear
clear
clear
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
clear
clear
Rain (mm)
------------------------
Temp. °C-3-3-5-3-1-1-2-2-2-200000-1-1-2-111131
Feels °C (?)-9-10-12-9-5-5-6-5-6-6-5-5-4-4-4-5-4-6-6-4-3-3-2-4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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