Surf Forecasts:
How big are the waves at Costellos today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 2.5ft (0.7m), 6s period with E swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 1ft (0.3m), 12s period with ESE swell.
- Evening surf: Evening surf (23 Aug, local time) - 1ft (0.3m), 12s period with ESE swell.
The current surf forecast for Costellos at 6PM is: 0.3m 12s primary swell from a East-southeast direction and 0.5m 6s secondary swell from a East direction (forecast issued at 01:00pm August 23). The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 2.5ft (0.7m) | 6s |
| Afternoon (23 Aug) | 1ft (0.3m) | 12s |
| Evening (23 Aug) | 1ft (0.3m) | 12s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 28°C on Mon afternoon, min 16°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | |||||||||||||||||||
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) | E 6 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 6 | SE 12 | SE 12 | SE 6 | SE 6 | SE 11 | SSE 6 | SSE 6 | SE 11 | SSE 7 | SE 6 | SE 6 | SE 11 | SE 11 | SE 11 | SE 6 |
Wave Graph | |||||||||||||||||||||
31 | 29 | 28 | 28 | 28 | 27 | 35 | 35 | 60 | 70 | 32 | 55 | 47 | 31 | 41 | 33 | 26 | 29 | 29 | 32 | 28 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | glassy | off | off |
High Tide | 8:28AM2.59m | 8:36PM2.95m | 9:19AM2.66m | 9:26PM3.03m | 10:04AM2.78m | 10:11PM3.13m | |||||||||||||||
Low Tide | 2:20PM1.15m | 3:08AM0.84m | 3:12PM1.07m | 3:54AM0.74m | 3:59PM0.95m | ||||||||||||||||
— | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | |
— | — | 7:32 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:30 | — | — | |
mm | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 18 | 25 | 28 | 28 | 25 | 22 | 19 | 18 | 18 | 23 | 25 | 25 | 22 | 19 |
Feels °C | 20 | 20 | 21 | 22 | 22 | 21 | 20 | 17 | 22 | 24 | 25 | 22 | 21 | 17 | 16 | 16 | 21 | 24 | 25 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 5 | E 7 | ESE 6 | ESE 6 | SSE 7 | SE 6 | SE 11 | SE 6 | SSE 6 | SE 11 | SSE 5 | SSE 7 | SE 6 | SE 6 | SE 6 | ESE 6 | SE 6 | SE 6 |
31 | 15 | 15 | 9 | 22 | 27 | 13 | 32 | 60 | 33 | 26 | 55 | 30 | 31 | 41 | 33 | 26 | 21 | 16 | 32 | 28 | |
Swell 2 Height (m) Direction Period (s) | ESE 12 | ESE 7 | ESE 12 | ESE 7 | ESE 12 | ESE 12 | SSE 4 | E 6 | SE 12 | ESE 11 | SE 11 | SE 11 | E 6 | SE 11 | SE 11 | ESE 11 | ESE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
15 | 9 | 28 | 9 | 28 | 14 | 5 | 20 | 34 | 25 | 32 | 31 | 3 | 30 | 30 | 11 | 11 | 29 | 29 | 29 | 18 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | ESE 12 | ESE 7 | ESE 12 | ESE 8 | ESE 8 | SE 12 | SE 12 | SE 12 | E 6 | E 6 | E 6 | SE 8 | ESE 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 14 |
3 | 29 | 9 | 28 | 7 | 7 | 35 | 35 | 6 | 3 | 6 | 6 | 2 | 5 | 3 | 3 | 3 | 3 | 1 | 1 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | S 3 | S 4 | WSW 2 | — | SE 6 | SSE 4 | — | SSE 6 | — | — | WSW 2 | SW 3 | S 3 | SSE 4 | — | WSW 2 |
— | — | — | — | — | 5 | 7 | 1 | — | 70 | 8 | — | 47 | — | — | 1 | 3 | 5 | 11 | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 910 | 951 | 1742 | 14 | 0 | 0 | 0 | 0 | 83 | 400 | 198 | 0 | 0 | 0 | 0 | 38 | 14 | 0 | 0 | 0 | 0 |
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)












