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Costellos Surf Forecast
/ New Hampshire (9 breaks) / New Hampshire (9 breaks) /
Surf Forecasts:
Costellos surfForecast / New Hampshire / USA
48hr Weather and Surf, issued 7 am Friday 29 May 2026 EDTForecast update in hr min s Forecast update imminent
Costellos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Costellos sea temperature is
12.2° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Costellos today (29 May):
- Morning surf: Morning surf (29 May, local time) - 1.5ft (0.4m), 5s period with ENE swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 2ft (0.6m), 5s period with E swell.
- Evening surf: Evening surf (29 May, local time) - 3ft (0.9m), 4s period with SSE swell.
The current surf forecast for Costellos at 12PM is: 0.4m 5s primary swell from a East-northeast direction and 0.2m 8s secondary swell from a South-southeast direction (forecast issued at 07:00am May 29). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 1.5ft (0.4m) | 5s |
| Afternoon (29 May) | 2ft (0.6m) | 5s |
| Evening (29 May) | 3ft (0.9m) | 4s |
Table - waves today at Costellos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Sat morning. Very mild (max 16°C on Fri morning, min 4°C on Sat morning). Winds decreasing (strong winds from the NNE on Sat morning, calm by Sun night). | ||||||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 9 | ENE 4 | ENE 5 | E 5 | SSE 4 | SSE 4 | SSE 5 | ENE 9 | ENE 7 | ENE 8 | NE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | |
7 | 8 | 9 | 21 | 18 | 32 | 30 | 28 | 203 | 2067 | 2290 | 1797 | 1658 | 1032 | 1015 | 637 | 516 | 398 | 311 | 320 | 282 | 275 | 230 | 153 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-on | cross-on | cross | cross | cross-off | off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-off | off | off | off | |
High Tide | 10:43AM2.93m | 10:48PM3.27m | 11:25AM2.94m | 11:28PM3.30m | 12:06PM2.95m | 00:08AM3.31m | ||||||||||||||||||
Low Tide | 4:33AM0.55m | 4:37PM0.84m | 5:14AM0.50m | 5:18PM0.84m | 5:55AM0.47m | 5:58PM0.84m | ||||||||||||||||||
 |  |  |  | |  |  |  | | |  | | | |  | |  | | | | | | | | |
 | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | 5:07 |
 | — | — | — | — | — | 8:12 | — | — | — | — | — | — | — | 8:13 | — | — | — | — | — | — | — | 8:14 | — | 8:15 |
— | — | — | — | — | 5 | 3 | 1 | — | 5 | 6 | 3 | — | — | — | — | — | — | — | — | 2 | 1 | — | — | |
Temp °C | 12 | 14 | 16 | 14 | 15 | 12 | 13 | 10 | 8 | 4 | 4 | 7 | 9 | 12 | 10 | 10 | 9 | 12 | 15 | 13 | 13 | 14 | 13 | 12 |
10 | 11 | 13 | 11 | 10 | 9 | 10 | 6 | 5 | -7 | -5 | -1 | 2 | 8 | 7 | 6 | 5 | 9 | 12 | 9 | 11 | 12 | 11 | 10 | |
Swell 1 Height (m) Direction Period (s) | ENE 4 | ENE 4 | ENE 5 | E 8 | ENE 5 | ENE 8 | ENE 9 | SSE 4 | ENE 7 | SSE 6 | SSE 6 | — | ENE 9 | S 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
 kJ | 7 | 8 | 9 | 12 | 5 | 22 | 28 | 18 | 86 | 11 | 4 | — | 1405 | 1 | 783 | 637 | 516 | 398 | 311 | 320 | 282 | 275 | 230 | 153 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | — | E 8 | SE 8 | SE 8 | ENE 9 | SSE 5 | W 4 | — | — | — | — | S 8 | — | — | — | — | — | — | — | E 15 | E 15 |
| kJ | 6 | 6 | 6 | — | 12 | 3 | 3 | 28 | 13 | 3 | — | — | — | — | 1 | — | — | — | — | — | — | — | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 8 | E 8 | — | E 14 | E 15 | E 15 | SE 8 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 6 | 5 | — | 4 | 4 | 4 | 3 | 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | — | — | E 5 | SSE 4 | SSE 4 | SSE 5 | WNW 3 | ENE 7 | ENE 8 | NE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | — | — | — | — | — | — | S 3 | SW 3 | WSW 3 |
| kJ | 3 | — | — | 21 | 18 | 32 | 30 | 7 | 203 | 2067 | 2290 | 1797 | 1658 | 1032 | 1015 | — | — | — | — | — | — | 4 | 5 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 247 | 131 | 129 | 506 | 493 | 83 | 14 | 17 | 0 | 625 | 142 | 855 | 118 | 0 | 0 | 0 | 0 | 5 | 38 | 98 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in New Hampshire | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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