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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 Monday 13 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
4.9° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 6PM is: 2.1m 7s primary swell from a South-southeast direction and 1.7m 7s secondary swell from a South-southeast direction (forecast issued at 01:00pm April 13). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | 3.5ft (1.1m) | 5s |
| Afternoon (13 Apr) | 4ft (1.2m) | 6s |
| Evening (13 Apr) | 4.5ft (1.4m) | 8s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 7 | 9 | 5 | 5 | 5 | 5 | 8 | 8 | 8 | 8 | 6 | 5 | 5 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 74 | 108 | 420 | 247 | 207 | 133 | 55 | 93 | 64 | 36 | 39 | 37 | 51 | 42 | 24 | 18 | 11 | 11 | 11 | 11 | 10 | 20 | 19 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | cross- off | off | off | off | on | on | cross- on | on | glass | glass | on | cross- on | on | on | cross- on | glass | cross- off | glass | cross- on | glass |
High Tide / height (m) | 8:25AM 2.92 | 8:59PM 2.94 | 9:16AM 3.05 | 9:43PM 3.16 | 10:05AM 3.19 | 10:26PM 3.39 | ||||||||||||||||||
Low Tide / height (m) | 2:44PM 0.79 | 3:07AM 0.83 | 3:29PM 0.66 | 3:55AM 0.60 | 4:13PM 0.53 | 4:42AM 0.36 | ||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:00 |
| Sunset | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:24 | - | - | - | - | - |
 | | |  |  | | |  | | | |  | | |  | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 3 | - | - | - | - | - | - | - | 10 | 2 | - | - | - |
| Temp. °C | 14 | 20 | 21 | 19 | 18 | 17 | 15 | 15 | 17 | 14 | 9 | 8 | 11 | 13 | 10 | 7 | 8 | 9 | 9 | 10 | 16 | 17 | 12 | 12 |
| Feels °C (?) | 10 | 16 | 16 | 15 | 16 | 15 | 13 | 14 | 15 | 11 | 5 | 6 | 10 | 13 | 8 | 4 | 5 | 6 | 6 | 10 | 16 | 19 | 11 | 12 |
- 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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