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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 6 am Wednesday 03 Dec 2025 ESTForecast 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
8.6° C
(Which is normal for this time of year)How big are the waves at Costellos today?
The current surf forecast for Costellos at 1PM is: 1.2m 7s primary swell from a East-northeast direction and 0.8m 9s secondary swell from a Southeast direction (forecast issued at 06:00am December 03). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 Dec) | 4.5ft (1.3m) | 7s |
| Afternoon (03 Dec) | 3ft (0.9m) | 9s |
| Evening (03 Dec) | 2.5ft (0.8m) | 9s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 03 | Thursday 04 | Friday 05 | Sat 06 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 6 | 7 | 7 | 9 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 81 | 116 | 255 | 143 | 129 | 173 | 125 | 136 | 98 | 102 | 100 | 80 | 80 | 63 | 49 | 36 | 36 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
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 | off | off | cross- off | cross- off | cross- off | cross- off | off | cross- off | off | off | cross- off | cross- off | cross- off | off |
High Tide / height (m) | 8:53AM 3.72 | 9:32PM 3.33 | 9:46AM 3.86 | 10:27PM 3.42 | 10:40AM 3.95 | 11:22PM 3.46 | ||||||||||||||||||
Low Tide / height (m) | 2:36AM 0.47 | 3:20PM 0.07 | 3:30AM 0.38 | 4:15PM -0.08 | 4:25AM 0.32 | 5:09PM -0.16 | ||||||||||||||||||
Wednesday 03 | Thursday 04 | Friday 05 | Sat 06 | |||||||||||||||||||||
| Sunrise | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - |
 |  | |  | | | | |  |  | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 1 | -2 | -1 | 1 | 1 | 0 | -2 | -2 | -2 | -2 | 0 | 1 | 0 | -7 | -9 | -13 | -14 | -14 | -12 | -8 | -7 | -6 | -6 | -6 |
| Feels °C (?) | -6 | -8 | -6 | -3 | -3 | -5 | -8 | -8 | -8 | -9 | -7 | -6 | -7 | -15 | -19 | -21 | -22 | -20 | -18 | -14 | -12 | -11 | -12 | -12 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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