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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 am Monday 27 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
6.9° C
(Which is slightly warmer than usual)How big are the waves at Costellos today?
The current surf forecast for Costellos at 1PM is: 0.2m 9s primary swell from a East direction and 0.1m 7s secondary swell from a Southeast direction (forecast issued at 07:00am April 27). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | 0.5ft (0.2m) | 10s |
| Afternoon (27 Apr) | 0.5ft (0.1m) | 12s |
| Evening (27 Apr) | 1.5ft (0.4m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed night. Very mild (max 13°C on Mon afternoon, min 5°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | E 10 | E 12 | SSE 7 | SE 7 | SE 7 | SE 7 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
7 | 7 | 7 | 3 | 5 | 13 | 24 | 30 | 97 | 123 | 157 | 191 | 191 | 243 | 354 | 432 | 577 | 696 | 696 | 589 | 521 | 456 | 446 | 464 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | on | on | on | cross-on | cross-on | glassy | cross-on | cross-on | on | on | on | on | cross-on | cross | cross-off | cross-on | on | on | on | on | cross-on | glassy | |
High Tide | 8:42AM3.13m | 9:12PM3.19m | 9:36AM3.13m | 9:58PM3.26m | 10:24AM3.13m | 10:39PM3.32m | ||||||||||||||||||
Low Tide | 2:32AM0.71m | 2:57PM0.60m | 3:26AM0.62m | 3:44PM0.62m | 4:14AM0.52m | 4:28PM0.64m | ||||||||||||||||||
 |  | | | | | | | | | | | | |  | | |  | | | |  | | | |
 | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | 5:39 |
 | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:40 | — | — | 7:42 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 9 | 9 | 12 | 13 | 12 | 11 | 9 | 8 | 7 | 6 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 6 | 6 | 7 | 6 | 6 | 6 | 6 |
5 | 6 | 8 | 9 | 8 | 8 | 6 | 6 | 3 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 3 | 2 | 3 | 4 | 4 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 9 | SSE 7 | SE 7 | SE 7 | SE 7 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 7 | 7 | 7 | 2 | 5 | 13 | 24 | 30 | 97 | 123 | 157 | 191 | 191 | 243 | 354 | 432 | 577 | 696 | 696 | 589 | 521 | 456 | 446 | 464 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | SE 7 | E 9 | E 9 | E 9 | SE 10 | E 9 | E 9 | E 11 | E 11 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 15 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | E 12 | E 12 | E 12 | E 12 | E 9 | E 12 | E 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 247 | 186 | 186 | 1293 | 186 | 168 | 186 | 14 | 39 | 39 | 39 | 39 | 39 | 38 | 39 | 5 | 0 | 39 | 39 | 39 | 39 | 39 | 38 | 0 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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