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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 Thursday 30 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
7.7° C
(Which is slightly warmer than usual)How big are the waves at Costellos today?
The current surf forecast for Costellos at 1PM is: 1.9m 10s primary swell from a East-southeast direction (forecast issued at 07:00am April 30). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 6.5ft (2.0m) | 10s |
| Afternoon (30 Apr) | 6ft (1.9m) | 10s |
| Evening (30 Apr) | 5.5ft (1.7m) | 10s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Thu afternoon. Very mild (max 14°C on Fri afternoon, min 6°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 8 | E 9 | E 9 | E 9 | E 9 | |
717 | 788 | 772 | 664 | 587 | 587 | 508 | 442 | 375 | 367 | 315 | 254 | 249 | 249 | 208 | 193 | 193 | 158 | 94 | 140 | 162 | 162 | 165 | 162 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-off | cross-off | glassy | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross | cross-off | glassy | |
High Tide | 11:08AM3.13m | 11:18PM3.36m | 11:50AM3.11m | 11:56PM3.38m | 12:30PM3.08m | 00:35AM3.36m | ||||||||||||||||||
Low Tide | 4:58AM0.45m | 5:08PM0.66m | 5:39AM0.40m | 5:47PM0.69m | 6:19AM0.38m | 6:25PM0.73m | ||||||||||||||||||
 |  |  | | |  | | | |  | | |  |  | |  | | | | | | | | | |
 | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | 5:35 |
 | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:44 | — | — | 7:45 |
1 | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 7 | 7 | 8 | 8 | 9 | 9 | 8 | 8 | 7 | 8 | 12 | 14 | 13 | 12 | 9 | 8 | 7 | 6 | 7 | 8 | 9 | 9 | 8 | 8 |
5 | 5 | 6 | 6 | 8 | 7 | 6 | 6 | 4 | 4 | 7 | 9 | 9 | 9 | 5 | 5 | 3 | 4 | 5 | 4 | 5 | 6 | 5 | 6 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 8 | E 9 | E 9 | E 9 | E 9 |
 kJ | 717 | 788 | 772 | 664 | 587 | 587 | 508 | 442 | 375 | 367 | 315 | 254 | 249 | 249 | 208 | 193 | 193 | 158 | 94 | 140 | 162 | 162 | 165 | 162 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 3 | — | — | — | — | — | ESE 8 | ESE 8 | ESE 9 | — | — | — | S 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 61 | 54 | 8 | — | — | — | 13 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WNW 2 | — | — | — | — | — | — | — | — | — | SSE 4 | SSE 4 | S 4 | SSW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 10 | 22 | 22 | 18 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 92 | 92 | 14 | 0 | 0 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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