Surf Forecasts:
How big are the waves at Costellos today (20 Aug):
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2ft (0.6m), 7s period with SE swell.
- Evening surf: Evening surf (20 Aug, local time) - 2ft (0.6m), 7s period with ESE swell.
The current surf forecast for Costellos at 10PM is: 0.6m 8s primary swell from a East-southeast direction and 0.1m 16s secondary swell from a East direction (forecast issued at 07:00pm August 20). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | - | - |
| Afternoon (20 Aug) | 2ft (0.6m) | 7s |
| Evening (20 Aug) | 2ft (0.6m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Thu night. Warm (max 22°C on Thu night, min 16°C on Sat afternoon). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||
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 |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ENE 4 | E 4 | ESE 5 | E 6 | E 6 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 36 | 34 | 40 | 46 | 39 | 41 | 39 | 39 | 38 | 37 | 37 | 36 | 36 | 24 | 41 | 51 | 116 | 112 | 72 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | glassy | cross-off | cross-on | cross-on | on | on | on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:48PM2.97m | 6:32AM2.60m | 6:45PM2.91m | 7:32AM2.56m | 7:42PM2.90m | ||||||||||||||
Low Tide | 00:20AM0.88m | 12:26PM1.14m | 1:19AM0.92m | 1:24PM1.18m | |||||||||||||||
 |  | |  | |  |  | | |  | | |  | | | |  | | | |
 | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | 7:37 | — | — | — | — | — | — | — | 7:36 | — | — | — | — | — | — | — | 7:35 | — | — |
mm | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 |
Temp °C | 24 | 22 | 17 | 19 | 18 | 19 | 20 | 20 | 20 | 19 | 19 | 17 | 17 | 17 | 18 | 17 | 16 | 17 | 17 |
Feels °C | 24 | 20 | 16 | 19 | 17 | 17 | 16 | 16 | 18 | 18 | 20 | 15 | 14 | 14 | 14 | 15 | 15 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 5 | ESE 13 | E 6 | ESE 6 |
| kJ | 36 | 34 | 40 | 46 | 39 | 41 | 39 | 39 | 38 | 37 | 37 | 36 | 36 | 24 | 24 | 51 | 17 | 112 | 72 |
Swell 2 Height (m) Direction Period (s) | — | E 16 | E 16 | E 8 | E 8 | E 7 | SE 15 | SE 14 | SE 14 | ENE 4 | ENE 4 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 8 | SE 9 | ESE 13 | NE 4 |
| kJ | — | 5 | 5 | 1 | 1 | 4 | 8 | 8 | 8 | 5 | 2 | 18 | 18 | 18 | 17 | 20 | 3 | 17 | 9 |
Swell 3 Height (m) Direction Period (s) | E 16 | E 9 | — | — | E 15 | E 15 | E 15 | E 15 | E 14 | SE 14 | SE 14 | SE 14 | SE 14 | SE 13 | SE 13 | ESE 13 | SE 13 | SE 10 | E 8 |
| kJ | 5 | 2 | — | — | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 7 | 8 | 7 | 7 | 17 | 7 | 4 | 5 |
Wind waves Height (m) Direction Period (s) | SE 2 | S 2 | W 2 | N 3 | — | — | NE 3 | ENE 3 | E 4 | — | — | NE 4 | ENE 4 | ENE 4 | E 4 | NE 4 | E 6 | NE 5 | — |
| kJ | 1 | 1 | 1 | 2 | — | — | 2 | 4 | 6 | — | — | 3 | 8 | 24 | 41 | 14 | 116 | 21 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 916 | 126 | 38 | 14 | 38 | 493 | 493 | 358 | 855 | 493 | 38 | 5 | 321 | 883 | 870 | 39 | 39 | 39 | 5 |
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