- Forecast
- Maps
- Live
- Weather State
- Spot Information
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 Saturday 28 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: 0.7m 5s primary swell from a East-northeast direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 07:00am March 28). The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Mar) | 2.5ft (0.8m) | 5s |
| Afternoon (28 Mar) | 1.5ft (0.4m) | 8s |
| Evening (28 Mar) | 1.5ft (0.4m) | 8s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 28 | Sunday 29 | Monday 30 | Tue 31 | |||||||||||||||||||||
| 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) (?) | 5 | 5 | 5 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 4 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 35 | 30 | 29 | 23 | 18 | 17 | 12 | 12 | 12 | 15 | 17 | 6 | 9 | 7 | 72 | 54 | 34 | 31 | 31 | 30 | 27 | 109 | 64 | 54 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | glass | cross- off | glass | off | off | off | cross- off | 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 |
High Tide / height (m) | 7:58AM 3.24 | 8:42PM 3.04 | 9:01AM 3.27 | 9:37PM 3.16 | 9:56AM 3.32 | 10:25PM 3.28 | ||||||||||||||||||
Low Tide / height (m) | 2:26PM 0.52 | 2:47AM 0.73 | 3:23PM 0.48 | 3:44AM 0.60 | 4:12PM 0.44 | |||||||||||||||||||
Saturday 28 | Sunday 29 | Monday 30 | Tue 31 | |||||||||||||||||||||
| Sunrise | - | 6:33 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:04 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:06 | - | - | - |
 |  |  | | |  |  | | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -3 | -3 | -2 | -1 | 1 | 2 | 0 | -1 | -1 | -1 | 3 | 7 | 9 | 9 | 4 | 3 | 4 | 4 | 9 | 14 | 15 | 12 | 10 | 10 |
| Feels °C (?) | -8 | -8 | -7 | -5 | -4 | -2 | -6 | -6 | -7 | -8 | -4 | 1 | 3 | 3 | -3 | -3 | -2 | -1 | 4 | 8 | 9 | 7 | 5 | 7 |
- 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.
Nearest