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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 Tuesday 31 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
3.9° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 10AM is: 0.8m 5s primary swell from a South direction and 0.5m 6s secondary swell from a South-southeast direction, 0.1m 11s secondary swell from a East direction (forecast issued at 07:00am March 31). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Mar) | 2.5ft (0.8m) | 6s |
| Afternoon (31 Mar) | 3ft (0.9m) | 6s |
| Evening (31 Mar) | 3ft (0.9m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 31 | Wednesday 01 | Thursday 02 | Fri 03 | |||||||||||||||||||||
| 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) (?) | 6 | 6 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 56 | 46 | 30 | 53 | 52 | 77 | 64 | 66 | 230 | 141 | 135 | 94 | 66 | 41 | 41 | 41 | 70 | 113 | 171 | 182 | 155 | 118 | 125 | 165 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | cross | cross- on | on | on | cross- on | cross- on | cross | glass | cross- on | cross- on | on | on | cross- on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 10:45AM 3.35 | 11:08PM 3.37 | 11:31AM 3.35 | 11:49PM 3.43 | 12:13PM 3.32 | 12:27AM 3.44 | ||||||||||||||||||
Low Tide / height (m) | 4:34AM 0.49 | 4:57PM 0.43 | 5:20AM 0.39 | 5:38PM 0.44 | 6:03AM 0.33 | 6:18PM 0.49 | ||||||||||||||||||
Tuesday 31 | Wednesday 01 | Thursday 02 | Fri 03 | |||||||||||||||||||||
| Sunrise | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:09 | - | - | - |
 |  |  | | | | | | | |  | | | | | | | |  | | | | | | |
Rain (mm) | - | - | 2 | 1 | 1 | - | - | - | - | 1 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 11 | 13 | 14 | 2 | 2 | 2 | 3 | 4 | 10 | 15 | 5 | 4 | 3 | 3 | 2 | 1 | 0 | -1 | -1 | -1 | -1 | 0 | 0 |
| Feels °C (?) | 10 | 9 | 10 | 13 | -4 | -3 | -2 | 0 | 2 | 9 | 15 | -1 | -1 | -1 | -1 | -3 | -5 | -6 | -8 | -7 | -7 | -7 | -4 | -4 |
- 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
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