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Costellos Surf Forecast
/ New Hampshire (9 breaks) / New Hampshire (9 breaks) /
Surf Forecasts:
Costellos surfForecast / New Hampshire / USA
48hr Weather and Surf, issued 7 pm Saturday 25 Apr 2026 EDTForecast 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
6.5° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 1AM is: 0.3m 13s primary swell from a East direction and 0.4m 8s secondary swell from a East direction (forecast issued at 07:00pm April 25). 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) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Apr) | 1ft (0.3m) | 13s |
| Afternoon (26 Apr) | 1ft (0.3m) | 13s |
| Evening (26 Apr) | 1ft (0.3m) | 12s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 11°C on Mon morning, min 5°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 10 | E 10 | E 9 | E 12 | E 13 | E 9 | SSE 7 | SE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | |
35 | 33 | 31 | 30 | 30 | 30 | 53 | 29 | 28 | 27 | 26 | 26 | 7 | 7 | 7 | 3 | 3 | 2 | 4 | 11 | 44 | 124 | 128 | 225 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | off | cross-off | cross-on | cross-on | on | cross-on | cross-on | glassy | cross | cross | cross-on | cross-on | on | on | cross-on | on | cross-on | cross | cross-on | cross-on | on | |
High Tide | 7:23PM3.06m | 7:42AM3.15m | 8:21PM3.12m | 8:42AM3.13m | 9:12PM3.19m | 9:36AM3.13m | ||||||||||||||||||
Low Tide | 1:30AM0.78m | 2:03PM0.58m | 2:32AM0.71m | 2:57PM0.60m | 3:26AM0.62m | |||||||||||||||||||
 |  |  | | |  | | | | |  | | | |  | | | | | | | | | | |
 | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — |
 | 7:36 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | 7:39 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 7 | 8 | 7 | 7 | 7 | 6 | 8 | 9 | 10 | 9 | 8 | 8 | 9 | 9 | 11 | 11 | 10 | 8 | 7 | 6 | 6 | 6 | 6 | 6 |
2 | 3 | 3 | 4 | 4 | 3 | 4 | 5 | 6 | 5 | 5 | 5 | 6 | 5 | 6 | 6 | 6 | 4 | 4 | 2 | 2 | 0 | 1 | 0 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 8 | E 8 | E 8 | E 13 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 10 | E 10 | E 9 | E 9 | E 9 | E 3 | SSE 7 | SE 7 | SE 7 | ESE 7 | E 8 | E 11 |
 kJ | 13 | 21 | 20 | 10 | 30 | 30 | 53 | 29 | 28 | 27 | 26 | 26 | 7 | 7 | 7 | 2 | 2 | 2 | 4 | 11 | 44 | 70 | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | E 13 | E 13 | E 7 | E 7 | — | S 8 | — | — | — | — | E 12 | E 12 | E 12 | E 12 | E 13 | SE 7 | E 9 | E 4 | E 9 | E 9 | E 11 | — |
| kJ | 35 | 33 | 31 | 30 | 10 | 9 | — | 1 | — | — | — | — | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | — |
Swell 3 Height (m) Direction Period (s) | ENE 4 | S 6 | NE 4 | NE 4 | — | — | — | — | S 7 | S 7 | — | — | — | — | S 8 | S 7 | S 7 | E 9 | E 12 | E 12 | E 12 | E 11 | — | — |
| kJ | 2 | 1 | 1 | 1 | — | — | — | — | 1 | 1 | — | — | — | — | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | SSW 2 | SSW 3 | — | NE 4 | — | — | ENE 2 | — | — | — | — | — | ENE 2 | ENE 3 | E 3 | — | E 4 | — | NE 3 | ESE 7 | ESE 7 | ESE 7 |
| kJ | — | 1 | 1 | 1 | — | 1 | — | — | 1 | — | — | — | — | — | 1 | 1 | 2 | — | 2 | — | 2 | 124 | 128 | 225 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 123 | 0 | 0 | 14 | 14 | 60 | 123 | 525 | 525 | 333 | 254 | 301 | 333 | 333 | 567 | 333 | 1909 | 186 | 186 | 186 | 5 | 333 | 39 | 39 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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