Surf Forecasts:
How big are the waves at Costellos today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.8m), 4s period with NNE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.7m), 5s period with NE swell.
- Evening surf: Evening surf (21 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
The current surf forecast for Costellos at 12AM is: 0.4m 8s primary swell from a East-southeast direction and 0.7m 4s secondary swell from a South-southeast direction (forecast issued at 07:00pm September 20). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 2.5ft (0.8m) | 4s |
| Afternoon (21 Sep) | 2.5ft (0.7m) | 5s |
| Evening (21 Sep) | 1.5ft (0.4m) | 9s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Very mild (max 16°C on Mon afternoon, min 10°C on Tue morning). Winds increasing (calm on Sun night, fresh winds from the ENE by Wed morning). | |||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 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 11 | SSE 4 | ESE 8 | SE 8 | ESE 8 | NNE 4 | NE 4 | NE 5 | ENE 5 | SE 9 | SE 9 | ENE 4 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | SE 8 | E 6 | E 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 11 | 15 | 28 | 18 | 27 | 16 | 31 | 22 | 29 | 22 | 21 | 37 | 82 | 95 | 150 | 119 | 66 | 76 | 50 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross | cross | cross | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 7:04PM2.82m | 7:52AM2.58m | 8:01PM2.86m | 8:43AM2.68m | 8:52PM2.95m | ||||||||||||||
Low Tide | 1:37AM0.96m | 1:47PM1.18m | 2:29AM0.90m | 2:40PM1.07m | |||||||||||||||
 |  | | |  |  | | | | | |  | |  | | |  | | | |
 | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | 6:44 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | 1 | 5 | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 12 | 12 | 11 | 15 | 16 | 16 | 15 | 14 | 13 | 12 | 10 | 11 | 11 | 12 | 12 | 13 |
Feels °C | 12 | 12 | 16 | 9 | 9 | 7 | 11 | 13 | 13 | 13 | 10 | 9 | 7 | 5 | 5 | 6 | 8 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 11 | SSE 4 | SE 4 | SE 4 | ESE 8 | ESE 8 | ESE 8 | ENE 5 | E 5 | ESE 5 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 7 |
| kJ | 11 | 11 | 16 | 9 | 6 | 13 | 13 | 12 | 17 | 16 | 14 | 27 | 24 | 39 | 23 | 57 | 60 | 45 | 34 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | ESE 9 | ESE 8 | S 4 | ESE 8 | SE 4 | SE 10 | SE 9 | ESE 8 | SE 9 | SE 9 | E 16 | E 15 | E 15 | E 14 | E 14 | E 7 | E 14 | E 14 |
| kJ | 5 | 15 | 28 | 6 | 27 | 3 | 16 | 13 | 11 | 22 | 21 | 5 | 4 | 4 | 4 | 4 | 23 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | ESE 7 | SE 6 | SE 8 | ESE 10 | SE 10 | SE 4 | SE 10 | SSE 9 | E 8 | E 8 | E 16 | — | — | — | — | E 14 | — | — |
| kJ | 8 | 5 | 2 | 18 | 11 | 16 | 1 | 4 | 8 | 4 | 4 | 5 | — | — | — | — | 4 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | — | — | N 3 | NNE 4 | NE 4 | NE 5 | ENE 5 | — | NE 3 | ENE 4 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | E 6 | E 6 |
| kJ | 5 | 13 | — | — | 4 | 16 | 31 | 22 | 29 | — | 7 | 37 | 82 | 95 | 150 | 119 | 66 | 76 | 50 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 802 | 391 | 338 | 276 | 493 | 493 | 501 | 501 | 503 | 618 | 620 | 620 | 493 | 618 | 625 | 544 | 1912 | 1052 | 1051 |
Best forecast wave conditions in New Hampshire | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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