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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 Wednesday 29 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
7.6° C
(Which is slightly warmer than usual)How big are the waves at Costellos today?
The current surf forecast for Costellos at 10AM is: 2.1m 10s primary swell from a East-southeast direction (forecast issued at 07:00am April 29). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 7ft (2.1m) | 10s |
| Afternoon (29 Apr) | 6.5ft (2.0m) | 10s |
| Evening (29 Apr) | 6ft (1.9m) | 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 9mm), mostly falling on Thu morning. Very mild (max 12°C on Fri afternoon, min 5°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 1 | Sat 2 | |||||||||||||||||||||
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 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 | |
727 | 914 | 817 | 748 | 678 | 664 | 674 | 674 | 849 | 817 | 746 | 716 | 688 | 587 | 575 | 533 | 456 | 397 | 388 | 336 | 287 | 281 | 243 | 208 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | glassy | glassy | glassy | glassy | cross | cross | off | off | off | cross-off | glassy | cross-off | off | off | |
High Tide | 10:24AM3.13m | 10:39PM3.32m | 11:08AM3.13m | 11:18PM3.36m | 11:50AM3.11m | 11:56PM3.38m | ||||||||||||||||||
Low Tide | 4:14AM0.52m | 4:28PM0.64m | 4:58AM0.45m | 5:08PM0.66m | 5:39AM0.40m | 5:47PM0.69m | ||||||||||||||||||
 |  |  | | | | |  | |  | | | | | | | |  | | | |  |  | | |
 | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | 5:35 |
 | — | — | — | — | 7:40 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:43 | — | — | 7:44 |
— | — | — | — | — | — | — | 1 | 1 | 2 | 1 | — | — | — | — | — | — | 1 | — | 1 | 1 | 1 | — | — | |
Temp °C | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 11 | 12 | 11 | 10 | 7 | 6 |
3 | 3 | 2 | 2 | 2 | 4 | 4 | 5 | 6 | 6 | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 6 | 8 | 9 | 10 | 7 | 3 | 1 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | 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 |
 kJ | 727 | 914 | 817 | 748 | 678 | 664 | 674 | 674 | 849 | 817 | 746 | 716 | 688 | 587 | 575 | 533 | 456 | 397 | 388 | 336 | 287 | 281 | 243 | 208 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 3 | — | — | S 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 2 | — | — | — | WNW 2 | WNW 2 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 39 | 39 | 39 | 39 | 39 | 98 | 39 | 69 | 69 | 0 | 0 | 0 | 0 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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