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Surf Forecasts:

Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 12 am Saturday 10 Jan 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
5.1° C
 (Which is normal for this time of year)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 5AM is: 0.9m 6s primary swell from a South-southeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 12:00am January 10). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EST) & DateWave HeightWave Period
Morning (10 Jan)2.5ft (0.7m)7s
Afternoon (10 Jan)1.5ft (0.4m)7s
Evening (10 Jan)1.5ft (0.4m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
10
Sunday
11
Monday
12
10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM
Rating
(10 max)
0
0
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
S
1.3
SSE
1
SSE
0.8
SSE
0.6
SSE
0.4
SSE
0.5
SE
0.4
SSE
0.7
SE
1
ESE
1.4
ESE
1.3
ESE
1.4
ESE
1.3
ESE
1.1
ESE
0.7
SSE
0.8
E
0.4
SSE
0.4
SSE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.2
SSE
Period(s) (?)666676773456666969101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2321297547301526201037103123156129101684833352324252510
Wind
(km/h)
30
SW
35
W
20
W
15
W
15
WNW
5
NNW
10
ESE
15
ESE
25
ESE
25
ENE
20
NE
20
NNE
10
N
10
NW
10
WNW
25
WNW
25
W
30
W
30
WNW
30
W
30
WNW
25
W
20
W
15
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffoffoffglasscross-
on		cross-
on		ononcross-
on		crosscrosscross-
off		cross-
off		offoffoffoffoffoffoffoffoff
High Tide
/ height (m)
4:11AM
3.10
4:36PM
2.86
5:02AM
3.02
5:33PM
2.72
5:54AM
2.97
6:31PM
2.63
Low Tide
/ height (m)
9:53PM
0.68
10:28AM
0.80
10:43PM
0.86
11:25AM
0.87
11:34PM
1.00
12:22PM
0.90
Saturday
10
Sunday
11
Monday
12
Sunrise----7:13-------7:13-------7:11---
Sunset------4:27-------4:28-------4:30-
cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
light snow
light rain
light rain
cloud
cloud
light snow
light snow
cloud
clear
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
Rain (mm)
---------31-------------
Temp. °C99432334133211110-1-1-2-200-1
Feels °C (?)32-2-2-30-10-6-3-3-3-3-3-2-6-7-9-10-11-10-8-7-7
  • 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

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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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