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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 Saturday 11 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
4.7° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 11AM is: 0.9m 9s primary swell from a East-southeast direction and 0.4m 5s secondary swell from a South direction (forecast issued at 07:00am April 11). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Apr) | 3ft (0.9m) | 9s |
| Afternoon (11 Apr) | 3.5ft (1.0m) | 9s |
| Evening (11 Apr) | 3ft (0.9m) | 9s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 94 | 124 | 138 | 124 | 151 | 143 | 143 | 146 | 146 | 138 | 110 | 113 | 110 | 108 | 84 | 57 | 42 | 53 | 77 | 127 | 158 | 284 | 191 | 76 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off |
High Tide / height (m) | 6:33AM 2.78 | 7:22PM 2.61 | 7:31AM 2.82 | 8:12PM 2.74 | 8:25AM 2.92 | 8:59PM 2.94 | ||||||||||||||||||
Low Tide / height (m) | 1:05PM 0.97 | 1:20AM 1.18 | 1:57PM 0.90 | 2:15AM 1.03 | 2:44PM 0.79 | |||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
| Sunrise | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:20 | - | - | - | - | - | - | - | 7:21 | - | - | - | - | - | - | - | 7:22 | - | - | - |
 |  | | | |  | | | | |  |  | |  |  | | | | | | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 4 | - | - | - | - | 1 | - | - |
| Temp. °C | 12 | 7 | 9 | 10 | 10 | 7 | 5 | 4 | 3 | 2 | 5 | 7 | 8 | 9 | 6 | 3 | 5 | 9 | 13 | 15 | 18 | 17 | 16 | 15 |
| Feels °C (?) | 9 | 1 | 1 | 2 | 3 | 0 | -1 | -1 | -2 | -2 | 1 | 1 | 1 | 3 | 1 | -4 | -1 | 3 | 8 | 11 | 15 | 14 | 13 | 13 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Costellos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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