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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 Saturday 21 Mar 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
3.3° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 2AM is: 0.6m 8s primary swell from a Southeast direction and 0.3m 7s secondary swell from a East direction (forecast issued at 07:00pm March 21). The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Mar) | 2.5ft (0.7m) | 8s |
| Afternoon (22 Mar) | 5ft (1.6m) | 6s |
| Evening (22 Mar) | 4.5ft (1.3m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 9 | 8 | 4 | 6 | 6 | 7 | 7 | 7 | 8 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 78 | 63 | 63 | 42 | 47 | 69 | 49 | 154 | 249 | 178 | 135 | 102 | 79 | 87 | 182 | 233 | 435 | 263 | 270 | 355 | 434 | 277 | 235 | 171 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- on | glass | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | glass | cross |
High Tide / height (m) | 1:54AM 3.68 | 2:28PM 3.35 | 2:43AM 3.63 | 3:21PM 3.22 | 3:37AM 3.53 | |||||||||||||||||||
Low Tide / height (m) | 7:42PM 0.34 | 8:16AM 0.13 | 8:29PM 0.43 | 9:08AM 0.20 | 9:21PM 0.56 | 10:05AM 0.31 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:39 | - | - |
| Sunset | 6:55 | - | - | - | - | - | - | - | 6:57 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - |
 |  | | | |  |  |  | |  | | | | | | |  |  |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 3 | 4 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 3 | 2 | 1 | 2 | 1 | 1 | 4 | 6 | 3 | 1 | 0 | -1 | -1 | 0 | 1 | 2 | 1 | 0 | -1 | -1 | -2 | 0 | 2 |
| Feels °C (?) | 0 | -2 | -2 | -2 | -3 | -5 | -6 | -1 | 4 | -2 | -6 | -7 | -9 | -8 | -7 | -5 | -2 | -3 | -3 | -6 | -7 | -7 | -3 | -3 |
- 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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