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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 1 pm 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 9PM is: 1.9m 10s primary swell from a East-southeast direction (forecast issued at 01:00pm April 29). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 7ft (2.2m) | 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 6mm), mostly falling on Thu afternoon. Very mild (max 13°C on Fri morning, min 6°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Wed 29 | Thursday 30 | Friday 1 | Sat 2 | |||||||||||||||||||||
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 | 5 AM | 8 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 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
817 | 727 | 748 | 664 | 651 | 674 | 746 | 731 | 650 | 664 | 600 | 587 | 508 | 497 | 415 | 406 | 351 | 343 | 281 | 281 | 243 | 237 | 189 | 193 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | cross-on | cross-on | cross-on | glassy | cross-on | glassy | glassy | glassy | off | cross-off | off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | off | |
High Tide | 10:24AM3.13m | 10:39PM3.32m | 11:08AM3.13m | 11:18PM3.36m | 11:50AM3.11m | 11:56PM3.38m | ||||||||||||||||||
Low Tide | 4:28PM0.64m | 4:58AM0.45m | 5:08PM0.66m | 5:39AM0.40m | 5:47PM0.69m | 6:19AM0.38m | ||||||||||||||||||
 | | |  | |  | |  | | | | | |  |  |  | |  | | | | | | | |
 | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:35 | — |
 | — | — | 7:40 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | 7:44 |
— | — | — | — | — | 1 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 6 | 8 | 13 | 13 | 13 | 11 | 8 | 6 | 6 | 7 |
2 | 2 | 2 | 4 | 3 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 7 | 7 | 2 | 3 | 8 | 9 | 10 | 7 | 4 | 2 | 2 | 4 | |
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 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 817 | 727 | 748 | 664 | 651 | 674 | 746 | 731 | 650 | 664 | 600 | 587 | 508 | 497 | 415 | 406 | 351 | 343 | 281 | 281 | 243 | 237 | 189 | 193 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 15 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 3 | W 3 | W 2 | W 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 39 | 39 | 39 | 39 | 39 | 39 | 0 | 39 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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