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Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 1 pm Thursday 10 Jul 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
18.7° C
 (Which is slightly warmer than usual)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 8PM is: 0.3m 11s primary swell from a Southeast direction and 0.2m 8s secondary swell from a East direction, 0.4m 4s secondary swell from a Southeast direction (forecast issued at 01:00pm July 10). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (10 Jul)1ft (0.3m)11s
Afternoon (10 Jul)1ft (0.3m)11s
Evening (10 Jul)1ft (0.3m)11s

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 
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
11 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 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.2
E
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.2
ESE
0.2
ESE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.4
SSE
0.4
SSE
0.3
SE
0.4
SE
0.3
SE
0.4
SE
0.3
SE
0.3
SE
0.3
SE
0.6
SE
0.6
SE
0.3
SE
0.3
SE
0.6
SE
0.6
SE
0.7
SSE
0.7
SE
0.7
SSE
0.6
SE
0.6
SE
0.8
SE
0.8
SE
0.8
SE
0.8
SE
0.7
SE
0.6
SE
0.6
ESE
0.6
ESE
0.5
ESE
0.5
ESE
0.4
ESE
0.4
ESE
0.4
ESE
0.4
SE
0.1
E
0.3
ESE
0.2
ESE
0.5
SSE
0.9
SSE
0.9
SSE
0.7
S
0.6
S
0.6
S
0.6
S
0.7
SSE
1.1
S
Period(s) (?)8111111111111111111111110108810810101010105510105444666455666777776661866455555556
Wave
Graph
(?)Metric surfscale
Energy (?)1430303029302017283329332427363627332936313132232431312425322960333428343154453534323042272822221712102348522827273138134
Wind
(km/h)
10
SE
10
E
15
E
10
E
5
ENE
5
NNE
5
NNE
5
NNE
5
E
15
ESE
20
SE
10
SE
10
SSE
5
SE
10
SSE
10
SSE
15
SE
20
SE
15
SE
10
SE
10
SE
10
SSE
10
S
10
S
15
SSE
20
SE
20
SE
20
SSE
15
S
10
SSW
10
S
10
SSW
15
SSE
10
SSE
10
SSW
10
SSE
10
SW
10
WSW
10
W
10
WNW
5
NW
5
SE
10
SSE
10
SSW
10
NW
10
NNW
5
N
5
ENE
10
E
15
ESE
15
SE
10
S
15
SW
10
SW
10
SW
15
SW
15
SW
15
SW
15
SSW
25
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		onononcross-
on		crosscrosscrossglasscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on		crosscross-
off		crosscross-
off		crosscrosscross-
off		crosscross-
off		offoffcross-
off		glasscross-
on		crosscross-
off		cross-
off		cross-
off		glassglassononcross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
11:44AM
2.89
11:48PM
3.34
12:26PM
2.96
12:30AM
3.38
1:07PM
3.04
1:13AM
3.39
1:48PM
3.10
1:57AM
3.37
2:31PM
3.16
2:43AM
3.31
3:16PM
3.22
3:32AM
3.23
4:04PM
3.26
4:25AM
3.13
4:55PM
3.29
Low Tide
/ height (m)
5:35PM
0.85
6:16AM
0.45
6:18PM
0.78
6:56AM
0.41
7:02PM
0.72
7:37AM
0.38
7:46PM
0.68
8:18AM
0.39
8:33PM
0.64
9:01AM
0.43
9:23PM
0.62
9:47AM
0.49
10:17PM
0.61
10:36AM
0.57
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Sunrise-------5:13-------5:13-------5:15-------5:16-------5:16-------5:18-------5:18----
Sunset---8:22-------8:22-------8:22-------8:21-------8:20-------8:20-------8:19-------8:17
light raincloudcloudcloudcloudcloudcloudcloudpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudcloudcloudpart cloudpart cloudpart cloudpart cloudcloudcloudpart cloudclearpart cloudpart cloudclearclearclearclearpart cloudclearpart cloudthunderstorm thunderstorm thunderstorm clearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearpart cloud
Rain (mm)
1--------------------------------431------------------------
Temp. °C181818171717171820212120202019202120191818181819212221212221202125232424242323243030312929272423252627282825252732353632
Feels °C (?)191818181818181922202121212221222119191818191920212120212323222326252826272625263130302929272525262627302927272933353631
  • 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.

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

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