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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 Friday 08 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
8.6° C
(Which is slightly warmer than usual)How big are the waves at Costellos today?
The current surf forecast for Costellos at 1PM is: 0.7m 10s primary swell from a Southeast direction and 0.2m 8s secondary swell from a East direction (forecast issued at 07:00am May 08). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 2ft (0.6m) | 8s |
| Afternoon (08 May) | 2.5ft (0.7m) | 10s |
| Evening (08 May) | 3ft (0.9m) | 9s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat afternoon. Very mild (max 19°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 7 | SE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 6 | ESE 8 | |
42 | 38 | 34 | 100 | 120 | 142 | 136 | 133 | 130 | 86 | 86 | 84 | 84 | 57 | 56 | 111 | 127 | 88 | 94 | 82 | 67 | 52 | 40 | 66 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | cross-off | glassy | on | on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | cross-off | off | off | |
High Tide | 4:07AM2.91m | 4:54PM2.64m | 4:58AM2.83m | 5:44PM2.66m | 5:52AM2.80m | 6:35PM2.74m | ||||||||||||||||||
Low Tide | 10:38AM0.85m | 10:48PM1.19m | 11:27AM0.91m | 11:43PM1.18m | 12:16PM0.91m | 00:40AM1.10m | ||||||||||||||||||
 |  |  |  | |  |  | | | |  | |  |  | | | | | | | | | | | |
 | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | 5:24 |
 | — | — | — | — | 7:51 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — | 7:53 |
— | — | — | — | — | — | — | — | — | — | 2 | 4 | 7 | 5 | — | — | — | — | — | — | 1 | — | — | 1 | |
Temp °C | 6 | 9 | 12 | 14 | 15 | 12 | 9 | 8 | 6 | 8 | 7 | 6 | 8 | 10 | 11 | 11 | 11 | 12 | 17 | 19 | 16 | 15 | 14 | 11 |
1 | 5 | 6 | 8 | 9 | 8 | 5 | 4 | 2 | 4 | 5 | 2 | 6 | 8 | 9 | 9 | 9 | 10 | 15 | 16 | 14 | 14 | 12 | 9 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 7 | SE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SSE 6 | ESE 9 | SSE 6 | SE 6 | SE 6 | ESE 8 |
 kJ | 42 | 38 | 34 | 100 | 120 | 142 | 136 | 133 | 130 | 86 | 86 | 84 | 84 | 57 | 56 | 39 | 39 | 40 | 94 | 26 | 67 | 52 | 40 | 66 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 8 | SE 10 | E 8 | S 9 | SSE 4 | S 9 | S 9 | SSW 5 | SSE 7 | SSE 7 | SSE 7 | SE 7 | E 13 | SE 11 | SE 10 | SE 10 | SE 11 | E 9 | SE 11 | ESE 9 | E 8 | ESE 8 | SSE 6 |
| kJ | 7 | 5 | 24 | 5 | 2 | 5 | 2 | 2 | 8 | 5 | 5 | 9 | 11 | 4 | 5 | 4 | 4 | 5 | 40 | 5 | 26 | 34 | 33 | 22 |
Swell 3 Height (m) Direction Period (s) | SE 12 | E 11 | E 8 | — | — | — | S 9 | SSE 6 | SSE 7 | SE 11 | E 13 | SE 11 | E 13 | E 17 | E 13 | E 13 | E 13 | E 13 | SE 11 | E 16 | ESE 11 | SE 11 | SE 11 | ESE 12 |
| kJ | 5 | 9 | 5 | — | — | — | 2 | 4 | 9 | 5 | 4 | 5 | 4 | 6 | 3 | 3 | 3 | 3 | 4 | 5 | 12 | 19 | 19 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 3 | — | W 2 | W 3 | WSW 3 | SSW 7 | — | SE 7 | SSE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | — | SSE 6 | — | SW 2 | — | — |
| kJ | — | — | — | — | 2 | — | 1 | 1 | 1 | 16 | — | 12 | 5 | 20 | 53 | 111 | 127 | 88 | — | 82 | — | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 83 | 14 | 198 | 0 | 0 | 0 | 0 | 0 | 198 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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