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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 Sunday 29 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
3.8° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 2PM is: 0.3m 8s primary swell from a East-southeast direction and 0.1m 5s secondary swell from a East direction (forecast issued at 07:00am March 29). An open ocean swell of 0.4m 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 (29 Mar) | 1.5ft (0.4m) | 8s |
| Afternoon (29 Mar) | 1ft (0.3m) | 8s |
| Evening (29 Mar) | 2.5ft (0.7m) | 5s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 29 | Monday 30 | Tuesday 31 | Wed 01 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 5 | 6 | 6 | 5 | 8 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 4 | 5 | 5 | 5 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 12 | 15 | 17 | 13 | 13 | 12 | 77 | 78 | 67 | 11 | 98 | 80 | 111 | 131 | 77 | 44 | 24 | 12 | 20 | 47 | 22 | 22 | 27 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- on | on | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 9:01AM 3.27 | 9:37PM 3.16 | 9:56AM 3.32 | 10:25PM 3.28 | 10:45AM 3.35 | 11:08PM 3.37 | ||||||||||||||||||
Low Tide / height (m) | 2:47AM 0.73 | 3:23PM 0.48 | 3:44AM 0.60 | 4:12PM 0.44 | 4:34AM 0.49 | 4:57PM 0.43 | ||||||||||||||||||
Sunday 29 | Monday 30 | Tuesday 31 | Wed 01 | |||||||||||||||||||||
| Sunrise | - | 6:31 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:06 | - | - | - | - | - | - | - | 7:07 | - | - | - |
 |  | |  | | |  |  | | | | | | | | | |  | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 1 | - | - | - | - |
| Temp. °C | -1 | -1 | 3 | 8 | 10 | 9 | 4 | 4 | 4 | 6 | 10 | 14 | 16 | 14 | 12 | 11 | 11 | 6 | 3 | 2 | 1 | 1 | 1 | 2 |
| Feels °C (?) | -7 | -7 | -4 | 2 | 4 | 3 | -2 | -2 | -2 | -1 | 4 | 8 | 10 | 10 | 9 | 9 | 10 | 2 | -3 | -4 | -5 | -4 | -3 | -1 |
- 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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