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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 am Sunday 24 May 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
11.1° C
(Which is slightly warmer than usual)How big are the waves at Costellos today?
The current surf forecast for Costellos at 8AM is: 0.2m 9s primary swell from a East-southeast direction and 0.1m 18s secondary swell from a East direction, 0.5m 4s secondary swell from a Southeast direction (forecast issued at 01:00am May 24). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | 1.5ft (0.5m) | 4s |
| Afternoon (24 May) | 1.5ft (0.5m) | 4s |
| Evening (24 May) | 2.5ft (0.8m) | 5s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Mon morning. Warm (max 21°C on Mon afternoon, min 7°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 24 | Monday 25 | Tuesday 26 | ||||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SE 4 | SE 9 | SE 4 | SE 4 | SE 4 | SE 5 | SE 5 | SE 5 | SE 6 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | |
9 | 14 | 8 | 9 | 9 | 13 | 22 | 38 | 111 | 308 | 365 | 373 | 311 | 277 | 250 | 244 | 222 | 216 | 171 | 167 | 145 | 122 | 84 | 57 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-off | cross-off | off | off | off | cross-off | cross | glassy | cross-off | cross | cross-on | cross | cross | cross-off | |
High Tide | 6:16AM3.16m | 6:56PM3.14m | 7:19AM3.05m | 7:51PM3.15m | 8:17AM2.97m | 8:41PM3.17m | ||||||||||||||||||
Low Tide | 00:05AM0.72m | 12:36PM0.56m | 1:09AM0.73m | 1:32PM0.67m | 2:08AM0.71m | 2:24PM0.75m | ||||||||||||||||||
 | |  |  | | | |  | | | | |  |  |  |  | | | | | | | |  | |
 | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:08 | — | — | — | — | — | — | — | 8:08 | — |
— | — | — | 1 | 2 | 3 | 4 | 2 | 2 | 2 | 3 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 10 | 9 | 7 | 7 | 8 | 10 | 10 | 11 | 12 | 11 | 12 | 21 | 20 | 17 | 14 | 13 | 14 | 18 | 20 | 20 | 19 | 19 |
9 | 10 | 8 | 6 | 5 | 3 | 4 | 6 | 6 | 9 | 11 | 9 | 11 | 20 | 19 | 16 | 13 | 12 | 13 | 16 | 17 | 17 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SE 9 | ESE 9 | SE 4 | SE 4 | SE 9 | SE 9 | SE 9 | E 18 | E 17 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 5 |
 kJ | 9 | 14 | 8 | 9 | 9 | 3 | 3 | 3 | 6 | 6 | 365 | 373 | 311 | 277 | 250 | 244 | 222 | 216 | 171 | 167 | 145 | 122 | 84 | 28 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 18 | ESE 9 | SE 9 | SE 7 | SE 12 | SE 9 | E 12 | — | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 15 | E 15 | E 15 | E 15 | SE 8 |
| kJ | 3 | 3 | 6 | 8 | 3 | 2 | 6 | 3 | 3 | — | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 57 |
Swell 3 Height (m) Direction Period (s) | — | — | E 12 | SE 7 | SE 7 | E 13 | E 18 | E 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 15 | — | E 15 |
| kJ | — | — | 3 | 2 | 2 | 3 | 6 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | 4 |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 4 | SE 4 | — | — | SE 5 | SE 5 | SE 5 | SE 6 | SE 7 | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | SSE 4 | S 5 |
| kJ | 6 | 7 | 8 | — | — | 13 | 22 | 38 | 111 | 308 | — | — | — | — | — | — | — | — | — | — | — | 5 | 17 | 44 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 198 | 787 | 787 | 565 | 565 | 457 | 457 | 333 | 203 | 92 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 182 | 123 | 92 | 14 | 14 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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