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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 Thursday 26 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
3.7° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 6PM is: 1.1m 6s primary swell from a South-southeast direction and 0.1m 13s secondary swell from a East direction, 0.1m 13s secondary swell from a East direction (forecast issued at 01:00pm March 26). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Mar) | 2.5ft (0.8m) | 5s |
| Afternoon (26 Mar) | 3ft (0.9m) | 6s |
| Evening (26 Mar) | 4.5ft (1.4m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 26 | Friday 27 | Saturday 28 | Sunday 29 | |||||||||||||||||||||
| 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 | 5 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | 5 | 5 | 5 | 5 | 5 | 8 | 6 | 8 | 8 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 33 | 47 | 98 | 171 | 200 | 140 | 134 | 153 | 96 | 61 | 40 | 28 | 18 | 51 | 40 | 32 | 47 | 17 | 14 | 17 | 13 | 12 | 11 | 15 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- off | cross | cross- on | cross | cross | cross- on | cross | cross- off | cross | glass | off | off | cross- off |
High Tide / height (m) | 6:32PM 2.92 | 6:51AM 3.24 | 7:40PM 2.95 | 7:58AM 3.24 | 8:42PM 3.04 | |||||||||||||||||||
Low Tide / height (m) | 12:15PM 0.51 | 12:33AM 0.85 | 1:23PM 0.54 | 1:42AM 0.82 | 2:26PM 0.52 | 2:47AM 0.73 | ||||||||||||||||||
Thursday 26 | Friday 27 | Saturday 28 | Sunday 29 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:31 |
| Sunset | - | - | 7:00 | - | - | - | - | - | - | - | 7:02 | - | - | - | - | - | - | - | 7:04 | - | - | - | - | - |
 | | |  |  |  | |  | | | |  |  | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | 7 | 4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 16 | 17 | 13 | 10 | 10 | 10 | 5 | 3 | 5 | 4 | 1 | -2 | -3 | -4 | -4 | -3 | -1 | 0 | 0 | -1 | -1 | -2 | -2 |
| Feels °C (?) | 7 | 11 | 13 | 9 | 6 | 7 | 4 | -2 | -3 | -1 | 1 | -4 | -8 | -9 | -10 | -9 | -8 | -5 | -8 | -6 | -5 | -7 | -7 | -8 |
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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
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