- 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 Tuesday 05 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
8.3° C
(Which is slightly warmer than usual)How big are the waves at Costellos today?
The current surf forecast for Costellos at 2PM is: 1.6m 6s primary swell from a South-southeast direction and 0.1m 9s secondary swell from a East direction (forecast issued at 07:00am May 05). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | 3.5ft (1.0m) | 5s |
| Afternoon (05 May) | 5.5ft (1.7m) | 6s |
| Evening (05 May) | 7ft (2.1m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Warm (max 24°C on Tue afternoon, min 7°C on Thu night). Winds decreasing (fresh winds from the SSW on Tue afternoon, calm by Thu morning). | ||||||||||||||||||||||||
Tuesday 5 | Wednesday 6 | Thursday 7 | Fri 8 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 6 | S 5 | S 5 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | |
75 | 54 | 71 | 148 | 384 | 458 | 345 | 276 | 310 | 286 | 285 | 432 | 383 | 371 | 262 | 117 | 82 | 54 | 43 | 42 | 35 | 27 | 22 | 23 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | cross-off | glassy | cross-on | cross-on | cross-off | cross-off | off | |
High Tide | 2:34PM2.86m | 2:36AM3.13m | 3:18PM2.76m | 3:20AM3.02m | 4:05PM2.69m | |||||||||||||||||||
Low Tide | 8:21AM0.55m | 8:26PM0.96m | 9:05AM0.66m | 9:10PM1.06m | 9:50AM0.77m | 9:57PM1.14m | ||||||||||||||||||
 |  |  | | |  |  | | |  | | | |  |  | | | | | | | | | | |
 | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | 5:28 |
 | — | — | — | — | 7:47 | — | — | — | — | — | — | — | 7:49 | — | — | — | — | — | — | — | 7:50 | — | — | 7:51 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 3 | 2 | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 14 | 22 | 24 | 24 | 20 | 16 | 17 | 15 | 15 | 20 | 19 | 17 | 14 | 14 | 10 | 9 | 10 | 13 | 13 | 13 | 12 | 10 | 8 |
8 | 9 | 18 | 18 | 18 | 14 | 13 | 13 | 11 | 11 | 15 | 14 | 13 | 11 | 12 | 6 | 6 | 7 | 11 | 10 | 11 | 10 | 7 | 4 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | — | E 10 | E 16 | E 16 | E 10 | SSE 7 | SSE 6 | SSE 6 | SE 6 | SE 6 | E 9 | E 10 | SE 6 | SE 6 | SE 6 |
 kJ | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | — | 2 | 5 | 5 | 2 | 189 | 117 | 82 | 54 | 43 | 7 | 7 | 27 | 22 | 23 |
Swell 2 Height (m) Direction Period (s) | — | — | E 18 | — | — | — | — | — | — | — | E 16 | E 16 | E 16 | E 16 | E 10 | E 10 | E 10 | E 10 | E 10 | E 14 | E 14 | E 9 | E 11 | E 9 |
| kJ | — | — | 6 | — | — | — | — | — | — | — | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 6 | 21 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 16 | — | — | E 13 | E 13 | E 14 | E 14 | E 15 | SSE 8 | SE 12 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | 3 | 3 | 4 | 4 | 4 | 7 | 5 |
Wind waves Height (m) Direction Period (s) | S 6 | S 5 | S 5 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | — | — | — | — | SE 6 | SE 6 | SSW 2 | — | — |
| kJ | 75 | 54 | 71 | 148 | 384 | 458 | 345 | 276 | 310 | 286 | 285 | 432 | 383 | 371 | 262 | — | — | — | — | 42 | 35 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 198 | 198 | 2017 | 2075 | 2019 | 2570 | 1691 | 1695 | 1742 | 1742 | 1610 | 2015 | 1297 | 384 | 198 | 5 | 0 | 0 | 14 | 182 | 3 | 171 | 0 | 186 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- 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