Surf Forecasts:
How big are the waves at Costellos today (29 Aug):
- Morning surf: Morning surf (29 Aug, local time) - 2.5ft (0.7m), 8s period with SE swell.
- Afternoon surf: Afternoon surf (29 Aug, local time) - 2.5ft (0.7m), 7s period with SE swell.
- Evening surf: Evening surf (29 Aug, local time) - 2ft (0.6m), 7s period with SE swell.
The current surf forecast for Costellos at 8PM is: 0.6m 7s primary swell from a Southeast direction and 0.4m 3s secondary swell from a South-southeast direction (forecast issued at 01:00pm August 29). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Aug) | 2.5ft (0.7m) | 8s |
| Afternoon (29 Aug) | 2.5ft (0.7m) | 7s |
| Evening (29 Aug) | 2ft (0.6m) | 7s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue morning. Warm (max 29°C on Sun afternoon, min 17°C on Tue morning). Wind will be generally light. | |||||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | |||||||||||||||||||
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 | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SSE 6 | SE 9 | SE 8 | SE 8 | SE 8 | SSE 3 | SE 8 | S 4 |
Wave Graph | |||||||||||||||||||||
56 | 51 | 51 | 41 | 41 | 33 | 23 | 23 | 23 | 23 | 24 | 19 | 15 | 17 | 19 | 11 | 18 | 11 | 6 | 11 | 22 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross | cross |
High Tide | 12:38PM3.27m | 00:55AM3.32m | 1:16PM3.34m | 1:36AM3.28m | 1:55PM3.38m | ||||||||||||||||
Low Tide | 6:45PM0.50m | 7:05AM0.45m | 7:27PM0.45m | 7:43AM0.49m | 8:11PM0.43m | ||||||||||||||||
— | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | |
— | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 21 | 20 | 19 | 20 | 20 | 20 | 20 | 23 | 29 | 28 | 24 | 21 | 20 | 18 | 18 | 21 | 21 | 21 | 20 | 20 |
Feels °C | 19 | 18 | 17 | 17 | 19 | 18 | 17 | 17 | 20 | 26 | 25 | 22 | 23 | 20 | 19 | 19 | 21 | 19 | 19 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 4 | SSE 5 | SSE 6 | SSE 5 | SE 8 | SE 8 | SE 8 | — | SE 8 | SE 8 |
56 | 51 | 51 | 41 | 41 | 33 | 23 | 23 | 23 | 23 | 24 | 5 | 15 | 17 | 9 | 11 | 18 | 11 | — | 11 | 11 | |
Swell 2 Height (m) Direction Period (s) | NE 4 | NE 4 | — | — | NE 4 | S 4 | S 4 | E 6 | E 6 | E 6 | E 6 | SE 9 | WSW 3 | SE 7 | SE 9 | S 5 | — | S 5 | — | — | — |
2 | 2 | — | — | 1 | 7 | 5 | 3 | 3 | 3 | 1 | 19 | 1 | 7 | 19 | 2 | — | 1 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | E 9 | E 9 | — | — | E 7 | — | — | E 8 | E 8 | — | SE 9 | SE 9 | — | — | S 5 | — | — | — | — |
— | — | 2 | 2 | — | — | 10 | — | — | 1 | 1 | — | 12 | 3 | — | — | 1 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | SE 3 | SSE 3 | S 4 | SW 4 | — | SSW 3 | SSW 3 | SSW 3 | S 3 | WSW 3 | — | — | — | — | — | — | SSE 3 | S 4 | S 4 |
5 | — | 2 | 3 | 9 | 5 | — | 5 | 4 | 3 | 6 | 3 | — | — | — | — | — | — | 6 | 9 | 22 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 227 | 493 | 405 | 0 | 14 | 38 | 618 | 870 | 910 | 395 | 364 | 199 | 247 | 247 | 247 | 503 | 493 | 493 | 627 | 910 |
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)












