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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 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 1AM is: 1.6m 10s primary swell from a East-southeast direction (forecast issued at 07:00pm April 30). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 4.5ft (1.4m) | 9s |
| Afternoon (01 May) | 4.5ft (1.3m) | 9s |
| Evening (01 May) | 4.5ft (1.3m) | 9s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Sun morning. Very mild (max 15°C on Fri afternoon, min 6°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
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 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | |
651 | 567 | 508 | 442 | 375 | 322 | 315 | 254 | 249 | 249 | 197 | 193 | 189 | 158 | 147 | 162 | 169 | 206 | 165 | 162 | 180 | 166 | 123 | 120 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | glassy | off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | |
High Tide | 11:18PM3.36m | 11:50AM3.11m | 11:56PM3.38m | 12:30PM3.08m | 00:35AM3.36m | 1:10PM3.03m | ||||||||||||||||||
Low Tide | 5:08PM0.66m | 5:39AM0.40m | 5:47PM0.69m | 6:19AM0.38m | 6:25PM0.73m | 6:59AM0.40m | ||||||||||||||||||
 |  | | |  |  | | |  | | | | |  |  | | | | |  | | | | | |
 | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — |
 | 7:42 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:44 | — | — | — | — | — | — | 7:45 |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | 1 | 2 | 3 | 2 | 1 | |
Temp °C | 9 | 8 | 8 | 8 | 7 | 7 | 12 | 14 | 15 | 13 | 11 | 10 | 9 | 9 | 10 | 12 | 9 | 8 | 7 | 7 | 6 | 6 | 7 | 11 |
7 | 6 | 6 | 6 | 3 | 2 | 6 | 8 | 10 | 10 | 8 | 8 | 6 | 6 | 7 | 10 | 5 | 5 | 4 | 3 | 2 | 1 | 2 | 6 | |
Swell 1 Height (m) Direction Period (s) | 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 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 |
 kJ | 651 | 567 | 508 | 442 | 375 | 322 | 315 | 254 | 249 | 249 | 197 | 193 | 189 | 158 | 147 | 162 | 169 | 206 | 165 | 162 | 180 | 166 | 123 | 120 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SE 8 | SE 9 | ESE 9 | S 3 | — | — | — | SSE 5 | S 4 | — | — | SE 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 62 | 77 | 8 | 2 | — | — | — | 28 | 9 | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 9 | — | — | — | — | E 14 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WNW 3 | WNW 3 | WNW 3 | WNW 2 | — | — | — | SW 2 | SSW 3 | SSW 3 | — | — | SSE 4 | SSE 5 | S 4 | — | N 2 | N 3 | N 3 |
| kJ | — | — | — | — | — | 2 | 2 | 1 | 1 | — | — | — | 1 | 2 | 2 | — | — | 29 | 49 | 19 | — | 1 | 2 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 5 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 5 | 5 | 44 | 505 | 5 | 5 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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