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Surf Forecasts:

Costellos surfForecast / New Hampshire / USA

information circle48hr Weather and Surf, issued 7 am Tuesday 19 May 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
9.5° C
 (Which is normal for this time of year)

How big are the waves at Costellos today?

The current surf forecast for Costellos at 4PM is: 0.5m 8s primary swell from a Southeast direction and 0.8m 5s secondary swell from a South-southeast direction (forecast issued at 07:00am May 19). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (19 May)1.5ft (0.4m)9s
Afternoon (19 May)1.5ft (0.5m)8s
Evening (19 May)3.5ft (1.1m)7s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast

Mostly dry. Warm (max 34°C on Tue afternoon, min 10°C on Thu morning). Wind will be generally light.

Tuesday
19
Wednesday
20
Thursday
21
Fri
22
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
5 PM
8 PM
11 PM
2 AM
Rating
(10 max)
1
1
1
0
1
0
1
1
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
S
5
0.4
SE
9
0.4
SE
9
0.5
SE
8
0.8
SSE
5
1.1
SSE
6
1.1
SSE
7
0.9
SSE
7
0.5
SE
8
0.5
SE
8
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
1
NNE
5
0.4
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
28
28
28
35
33
104
117
79
31
34
27
29
29
30
29
29
21
29
46
21
13
13
13
13
Wind (km/h)
10
SSW
15
WSW
15
WSW
20
SW
20
W
15
WSW
15
WSW
10
SW
15
SW
20
WSW
20
W
25
WNW
25
WNW
10
WNW
15
WNW
20
NW
20
NW
15
NNW
0
ENE
10
ESE
20
SSE
10
SSW
10
NNE
10
N
Wind State
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
cross
cross-off
cross
cross
High Tide
1:59PM3.41m
2:12AM3.82m
2:56PM3.35m
3:10AM3.67m
3:55PM3.27m
Low Tide
7:45AM-0.10m
7:57PM0.38m
8:41AM-0.01m
8:56PM0.47m
9:38AM0.12m
9:57PM0.57m
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
—
—
—
—
—
—
—
5:15
—
—
—
—
—
—
—
5:13
—
—
—
—
—
—
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
8:02
—
—
—
—
—
—
—
8:04
—
—
—
—
—
—
—
8:05
—
8:06
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
19
23
30
33
34
25
23
23
22
24
29
28
27
23
20
15
12
10
12
13
12
15
13
12
Feels °C
18
23
29
30
32
25
23
24
22
24
28
25
24
22
16
9
7
6
10
9
7
11
9
8
Swell 1
Height (m)
Direction
Period (s)
0.7
SSE
5
0.7
SSE
5
0.6
SSE
5
0.5
SE
8
0.8
SSE
5
1.1
SSE
6
1.1
SSE
7
0.9
SSE
7
0.6
S
6
0.5
S
5
0.4
SE
9
0.4
SSE
5
0.4
SE
9
0.4
SE
9
0.4
SSE
6
0.4
SSE
6
0.4
SE
9
0.4
SE
9
0.8
NE
5
0.5
NE
4
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
Energy kJ
19
19
19
35
31
104
117
79
24
12
27
9
29
30
11
11
21
29
29
10
13
13
13
13
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
8
0.4
SE
9
0.4
SE
9
0.1
E
13
0.5
SE
8
0.1
E
16
0.1
E
16
0.1
E
16
0.5
SE
8
0.5
SE
8
0.4
SSE
5
0.4
SE
9
0.3
SSE
5
0.3
SSE
6
0.4
SE
9
0.4
SE
9
0.3
SSE
5
0.1
E
15
0.4
SE
9
0.4
SE
9
0.2
NNE
4
—
0.2
S
3
—
Energy kJ
10
28
28
3
33
5
5
5
31
34
7
29
6
6
29
29
6
4
28
21
1
—
1
—
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
9
0.1
E
13
0.1
E
13
0.1
E
16
0.1
E
13
—
—
—
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
12
0.1
E
12
0.1
E
14
0.1
E
14
0.1
E
15
0.1
E
15
0.1
S
15
0.1
E
15
0.1
SE
14
0.1
SE
14
0.1
S
6
0.1
SE
6
0.1
SE
5
Energy kJ
14
3
3
5
3
—
—
—
5
5
5
3
3
4
4
4
4
4
4
8
8
1
1
1
Wind waves
Height (m)
Direction
Period (s)
0.8
S
5
0.3
SW
3
—
0.7
S
5
0.2
WSW
3
0.4
SW
3
0.3
WSW
3
0.3
WSW
3
0.4
SW
3
0.4
SW
3
0.4
SW
3
0.4
WSW
3
0.5
W
3
0.4
WNW
3
0.4
NW
3
0.3
NW
3
0.2
NNW
2
0.5
NE
4
1
NNE
5
—
0.4
SE
2
0.3
SSE
3
—
—
Energy kJ
28
1
—
29
1
2
1
2
2
2
2
3
5
3
2
1
1
9
46
—
1
2
—
—
Nearest Offshore or Glassy
Costellos
New Hampshire
Costellos
New Hampshire
Costellos
New Hampshire
Panic Point (Weekapaug)
Rhode Island
Costellos
New Hampshire
Popham Read
Maine
Costellos
New Hampshire
Costellos
New Hampshire
Costellos
New Hampshire
Costellos
New Hampshire
Sands
New Jersey
Ogunquit Beach
Maine
Ogunquit Beach
Maine
Horseneck Beach
Massachusetts
Ogunquit Beach
Maine
Baker s Beach
Rhode Island
K38 and 39
Rhode Island
Matunuck-The point
Rhode Island
Costellos
New Hampshire
Lighthouse-Southside
Rhode Island
White Point Beach
Nova Scotia
White Point Beach
Nova Scotia
7 Presidents Street Park
New Jersey
Ditch Plains
Long Island NY
Rating
(10 max)
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
0
0
0
198
0
118
0
0
0
0
391
38
38
163
38
162
186
186
0
186
501
501
395
232
Best forecast wave conditions in New Hampshire
The Wall
Hampton Beach
Hampton Beach
The Wall
Hampton Beach
The Wall
Costellos
Costellos
Hampton Beach
Rating
(10 max)
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Lincoln City Nelscott Reef
Oregon North
Lincoln City Nelscott Reef
Oregon North
Lincoln City Nelscott Reef
Oregon North
La Push
Washington
Manasquan Inlet
New Jersey
Coronado Beaches
CAL - San Diego County
The Strait
Washington
Trestles (Uppers)
CAL - Orange County
Super Tubes
CAL - Ventura
Rincon - Rivermouth
CAL - Ventura
Fort Canby A Jetty
Washington
The Dump
Washington
The Strait
Washington
Outside Ponquogue
Long Island NY
Chincoteague
Virginia
Super Tubes
CAL - Ventura
Lincoln City Nelscott Reef
Oregon North
Lincoln City Nelscott Reef
Oregon North
Super Tubes
CAL - Ventura
The Dump
Washington
Elwha
Washington
Rincon - The Cove
CAL - Ventura
Trestles (Uppers)
CAL - Orange County
Trestles (Uppers)
CAL - Orange County
Rating
(10 max)
4
4
4
4
1
2
2
2
1
2
4
2
1
2
2
1
3
3
2
2
1
1
2
2
Header Global
Bankvaults
Indonesia
Bankvaults
Indonesia
Bali Village
Indonesia
Bali Village
Indonesia
Boneyard
Australia
Cavalos de Fao
Portugal
Cavalos de Fao
Portugal
Crazy Left
Portugal
Achadas Da Cruz
Portugal
Anglet - Corsaires
France
Arrifana
Portugal
Trial Harbour
Australia
Trial Harbour
Australia
Afife
Portugal
Anglet - Corsaires
France
Lambe Lambe
Brazil
Lambe Lambe
Brazil
Balimbing
Indonesia
Balephetrish (Tiree)
United Kingdom
Pauba
Brazil
Otago Peninsula - Allans Beach
New Zealand
Itaúna
Brazil
Itaúna
Brazil
Papatowai
New Zealand
Rating
(10 max)
4
4
4
4
5
5
5
5
4
4
4
5
5
4
4
5
5
4
4
5
4
5
5
6
  • 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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