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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 pm 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 10PM is: 1.3m 6s primary swell from a Southeast direction and 0.1m 12s secondary swell from a East direction, 0.1m 18s secondary swell from a East direction (forecast issued at 07:00pm May 24). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | - | - |
| Afternoon (24 May) | 2ft (0.6m) | 4s |
| Evening (24 May) | 4ft (1.2m) | 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 21mm), heaviest during Sun night. Warm (max 26°C on Wed afternoon, min 10°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 24 | Monday 25 | Tuesday 26 | Wed 27 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 5 | ESE 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 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SSE 7 | |
31 | 67 | 129 | 275 | 392 | 373 | 333 | 277 | 260 | 238 | 216 | 211 | 211 | 192 | 167 | 145 | 182 | 88 | 71 | 57 | 82 | 56 | 43 | 35 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | cross-on | cross | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | cross | cross | cross | cross-off | cross-off | off | off | off | off | cross | |
High Tide | 6:56PM3.14m | 7:19AM3.05m | 7:51PM3.15m | 8:17AM2.97m | 8:41PM3.17m | 9:11AM2.94m | ||||||||||||||||||
Low Tide | 1:09AM0.73m | 1:32PM0.67m | 2:08AM0.71m | 2:24PM0.75m | 3:01AM0.66m | |||||||||||||||||||
 | |  | | | | |  |  | |  |  | | | | |  | | | | | | |  | |
 | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — |
 | — | 8:07 | — | — | — | — | — | — | — | 8:08 | — | — | — | — | — | — | — | 8:08 | — | — | — | — | — | 8:09 |
3 | 5 | 5 | 2 | 1 | 1 | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 19 | 20 | 18 | 15 | 14 | 16 | 20 | 22 | 22 | 20 | 20 | 18 | 18 | 20 | 25 | 26 |
5 | 5 | 6 | 7 | 9 | 9 | 8 | 11 | 18 | 20 | 17 | 14 | 13 | 15 | 18 | 18 | 18 | 17 | 18 | 16 | 16 | 19 | 24 | 26 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | E 12 | E 18 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 15 | SE 8 | SSE 5 | SE 8 | SE 8 | SE 7 | SE 7 | SSE 7 |
 kJ | 3 | 3 | 3 | 6 | 392 | 373 | 333 | 277 | 260 | 238 | 216 | 211 | 211 | 192 | 167 | 145 | 4 | 88 | 26 | 57 | 82 | 56 | 43 | 35 |
Swell 2 Height (m) Direction Period (s) | E 13 | SE 12 | E 18 | E 13 | E 17 | 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 | S 5 | E 15 | E 15 | E 15 | E 14 |
| kJ | 3 | 6 | 6 | 3 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 71 | 25 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | E 18 | E 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 15 | E 15 | E 15 | — | — | — |
| kJ | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | ESE 5 | SE 6 | SE 7 | — | — | — | — | — | — | — | — | — | — | — | SSE 2 | SE 8 | SSE 4 | WSW 3 | WSW 3 | WSW 3 | WSW 3 | — | — |
| kJ | 31 | 67 | 129 | 275 | — | — | — | — | — | — | — | — | — | — | — | 1 | 182 | 25 | 2 | 4 | 1 | 2 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 567 | 848 | 186 | 92 | 17 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 182 | 123 | 198 | 198 | 4 | 0 | 0 | 0 | 38 | 38 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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