Surf Forecasts:
How big are the waves at Costellos today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 2ft (0.6m), 4s period with SSE swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 4.5ft (1.3m), 5s period with SSE swell.
- Evening surf: Evening surf (21 Jul, local time) - 5ft (1.6m), 6s period with SSE swell.
The current surf forecast for Costellos at 12PM is: 0.9m 4s primary swell from a South-southeast direction and 0.1m 8s secondary swell from a Southeast direction, 0.1m 11s secondary swell from a Southeast direction (forecast issued at 07:00am July 21). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 2ft (0.6m) | 4s |
| Afternoon (21 Jul) | 4.5ft (1.3m) | 5s |
| Evening (21 Jul) | 5ft (1.6m) | 6s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Tue night. Warm (max 28°C on Wed afternoon, min 15°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 4 | S 4 | SSE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 9 | SSE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 18 | 13 | 16 | 56 | 135 | 151 | 179 | 254 | 192 | 127 | 107 | 217 | 223 | 151 | 173 | 194 | 151 | 112 | 82 | 77 | 71 | 69 | 67 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | glassy | cross-on | cross | cross-off |
High Tide | 5:15AM2.98m | 5:40PM3.14m | 6:12AM2.81m | 6:32PM3.05m | 7:10AM2.69m | 7:25PM3.00m | |||||||||||||||||
Low Tide | 11:21AM0.76m | 00:03AM0.74m | 12:13PM0.92m | 1:00AM0.81m | 1:07PM1.04m | ||||||||||||||||||
 |  |  | | |  |  |  | | |  | |  |  |  | | | | | | | | | |
 | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:14 | — | — | — | — | — | — | — | 8:14 | — |
mm | — | — | — | — | — | 3 | 7 | 3 | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 22 | 23 | 21 | 19 | 21 | 20 | 20 | 21 | 24 | 26 | 28 | 24 | 19 | 17 | 15 | 17 | 21 | 24 | 23 | 21 | 20 |
Feels °C | 16 | 17 | 20 | 19 | 18 | 17 | 21 | 19 | 21 | 21 | 24 | 25 | 26 | 21 | 17 | 15 | 13 | 13 | 17 | 22 | 20 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 | E 11 | SE 11 | — | — | — | SSE 7 | SSE 7 | SSE 9 | SSE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 2 | 5 | — | — | — | 151 | 173 | 194 | 151 | 112 | 82 | 77 | 71 | 69 | 67 |
Swell 2 Height (m) Direction Period (s) | S 7 | E 12 | SE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | — | — | — |
| kJ | 1 | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 12 | SE 12 | E 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 3 | — | — | — |
| kJ | 3 | 5 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | SSE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | — | WNW 3 | WNW 3 | W 2 | WNW 3 | NW 3 | WNW 3 | — | SSE 3 | — |
| kJ | 18 | 13 | 16 | 56 | 135 | 151 | 179 | 254 | 192 | 127 | 107 | 217 | 223 | — | 1 | 3 | 1 | 2 | 2 | 1 | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 618 | 618 | 1290 | 1290 | 1290 | 464 | 198 | 588 | 0 | 1 | 387 | 60 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 198 | 198 | 0 |
Best forecast wave conditions in New Hampshire | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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