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Costellos Surf Forecast
/ New Hampshire (9 breaks) / New Hampshire (9 breaks) /
Costellos surfForecast / New Hampshire / USA
12 Day Weather and Surf, issued 1 pm Thursday 22 May 2025 EDT
Best Forecast Surf Conditions for Costellos this week:
The surf forecast for Costellos over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 23) at 5AM. The primary swell is predicted to be 13ft and 10s period with a secondary swell of 13ft and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Costellos in the next 12 days are 15ft 10s and forecast to arrive on Friday (May 23) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6ft 6s period and expected on Friday (May 23) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 23rd May) | 13ft (4.0m) 10s |
| Best Surf | 11AM (Fri 23rd May) | 10ft (3.0m) 10s |
| Most Powerful | 2AM (Fri 23rd May) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Costellos over the next 12 days.
Thu 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 01 | Monday 02 | Tue 03 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 9 | 9 | 9 | 9 | 9 | 5 | 12 | 4 | 4 | 11 | 7 | 6 | 7 | 7 | 8 | 8 | 8 | 5 | 9 | 7 | 7 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 572 | 3796 | 1448 | 533 | 227 | 160 | 122 | 75 | 57 | 52 | 35 | 13 | 13 | 6 | 8 | 8 | 8 | 8 | 8 | 20 | 6 | 21 | 21 | 29 | 54 | 94 | 67 | 62 | 73 | 43 | 24 | 18 | 28 | 15 | 9 | 16 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- off | cross- off | off | off | off | cross- off | glass | cross- off | cross- off | cross | cross- on | off | glass | cross | off | cross- off | cross | cross- off | cross | cross | off | glass | cross | off | off | off | cross- on | on | on | cross- on | cross | cross | cross | cross |
High Tide / height (ft) | 7:42PM 10.53 | 8:09AM 10.2 | 8:36PM 11.25 | 9:08AM 10.56 | 9:30PM 11.91 | 10:06AM 10.93 | 10:23PM 12.43 | 11:02AM 11.19 | 11:16PM 12.8 | 11:57AM 11.32 | 12:09AM 12.89 | 12:51PM 11.29 | 1:02AM 12.73 | 1:45PM 11.09 | 1:56AM 12.34 | 2:40PM 10.79 | 2:51AM 11.78 | 3:35PM 10.47 | 3:47AM 11.16 | 4:31PM 10.14 | 4:44AM 10.5 | 5:27PM 9.91 | 5:43AM 9.91 | |||||||||||||
Low Tide / height (ft) | 1:59AM 2 | 2:18PM 1.8 | 2:58AM 1.25 | 3:12PM 1.51 | 3:54AM 0.56 | 4:07PM 1.25 | 4:49AM 0 | 5:01PM 1.05 | 5:43AM -0.36 | 5:54PM 1.02 | 6:37AM -0.43 | 6:48PM 1.15 | 7:31AM -0.26 | 7:43PM 1.41 | 8:25AM 0.13 | 8:38PM 1.77 | 9:19AM 0.66 | 9:35PM 2.17 | 10:14AM 1.25 | 10:34PM 2.56 | 11:09AM 1.8 | 11:33PM 2.82 | 12:02PM 2.3 | |||||||||||||
Thu 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 01 | Monday 02 | Tue 03 | ||||||||||||||||||||||||
| Sunrise | - | - | 5:13 | - | - | 5:11 | - | - | 5:11 | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:07 | - | - | 5:07 | - | - | 5:07 | - | - | 5:07 | - | - | 5:05 | - | - | 5:05 |
| Sunset | 8:06 | - | - | 8:07 | - | - | 8:07 | - | - | 8:08 | - | - | 8:08 | - | - | 8:09 | - | - | 8:10 | - | - | 8:12 | - | - | 8:13 | - | - | 8:14 | - | - | 8:15 | - | - | 8:15 | - | - |
 |  |  | |  | |  |  |  | | | | |  |  | |  | | | | | | | | | | | | | | |  | | | | | |
Rain (in) | 0.3 | 1.5 | 0.1 | 0.0 | 0.2 | 0.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 0.2 | 0.0 | 0.2 | - |
| Temp. °F | 45 | 45 | 43 | 48 | 46 | 46 | 52 | 50 | 54 | 57 | 55 | 57 | 57 | 63 | 70 | 72 | 66 | 63 | 68 | 59 | 66 | 70 | 68 | 73 | 75 | 73 | 79 | 84 | 77 | 61 | 61 | 59 | 66 | 66 | 63 | 68 |
| Feels °F (?) | 30 | 30 | 34 | 41 | 41 | 37 | 43 | 41 | 48 | 50 | 50 | 52 | 52 | 57 | 66 | 64 | 64 | 55 | 63 | 54 | 63 | 64 | 63 | 73 | 70 | 70 | 73 | 81 | 75 | 54 | 54 | 57 | 66 | 66 | 63 | 66 |
Short Range Forecast: Heavy rain (total 2.1in), heaviest during Thu night. Very mild (max 54°F on Sun morning, min 41°F on Fri morning). Winds decreasing (strong winds from the NNE on Thu night, calm by Sun morning). | Days 3-6 Weather Summary Mostly dry. Warm (max 72°F on Tue afternoon, min 48°F on Sun night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 79°F on Sat morning, min 55°F on Wed night). Wind will be generally light. | Long Range Forecast: Moderate rain (total 0.6in), heaviest on Sun night. Warm (max 84°F on Sat afternoon, min 55°F on Sun night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Costellos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Costellos Surf forecast
The above surf forecast table for Costellos provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Costellos can be found by selecting the local surf guide option on the grey menu. Our Costellos surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Costellos) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Costellos may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Costellos is 5 km (3 miles) from Hampton. If you plan a vacation in New Hampshire, look for hotels and other accommodation in Hampton. Hampton has rooms for a wide range of budgets as well as car hire and transport links.
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