Surf Forecasts:
Longnook Beach surf forecast from 6 Nov 2026:
- Best quality surf: Wednesday 18 Nov, 7PM (local time) - 13ft (4.0m), 8s period, NE swell with cross-onshore winds.
- Most powerful swell: Thursday 19 Nov, 7AM (local time) - 15ft (4.5m), 10s period, NNE swell with 4,068 kJ wave energy.
- Next surfable swell (1★+): Wednesday 18 Nov, 7PM (local time) - 13ft (4.0m), 8s period with NE swell.
Best Forecast Surf Conditions for Longnook Beach this week:
The surf forecast for Longnook Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 18) at 7PM. The primary swell is predicted to be 4.0m and 8s period with a secondary swell of 1.8m and 9s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Longnook Beach in the next 16 days are 4.5m 10s and forecast to arrive on Thursday (Nov 19) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Monday (Nov 09) at 7PM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Wed 18th Nov) | 13ft (4.0m) 8s |
| Best Surf | 7PM (Wed 18th Nov) | 13ft (4.0m) 8s |
| Most Powerful | 7AM (Thu 19th Nov) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Longnook Beach over the next 16 days.
Short Range ForecastHeavy rain (total 48mm), heaviest during Fri night. Very mild (max 18°C on Fri morning, min 10°C on Sat night). Winds increasing (light winds from the SSW on Sat morning, strong winds from the WNW by Sun morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Tue afternoon, min 6°C on Wed night). Winds decreasing (strong winds from the WNW on Mon afternoon, moderate winds from the NW by Wed night). | ||||||||||||||||||||
Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 10 | E 9 | ENE 9 | E 8 | SE 9 | SE 7 | SE 8 | SE 8 | SE 10 | SE 10 | SE 11 | NW 6 | SE 10 | SE 10 | ESE 10 | NW 6 | NW 5 | NW 4 | NW 4 | NNW 4 | NNW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 6 | 8 | 12 | 12 | 62 | 49 | 21 | 17 | 54 | 56 | 149 | 25 | 25 | 20 | 181 | 46 | 27 | 14 | 10 | 14 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross | cross | off |
High Tide | 9:23PM2.38m | 9:40AM2.57m | 10:11PM2.36m | 10:21AM2.60m | 10:54PM2.33m | 11:00AM2.59m | 11:36PM2.29m | 11:39AM2.57m | 00:16AM2.24m | 12:17PM2.52m | 00:57AM2.18m | 12:58PM2.46m | 1:39AM2.12m | ||||||||
Low Tide | 3:07PM0.04m | 3:22AM0.12m | 3:56PM-0.02m | 4:05AM0.15m | 4:40PM-0.05m | 4:46AM0.19m | 5:21PM-0.05m | 5:26AM0.24m | 6:02PM-0.02m | 6:06AM0.30m | 6:42PM0.04m | 6:47AM0.35m | 7:24PM0.10m | ||||||||
 | |  | |  |  |  | |  |  | | | | | | | |  | | |  | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 4:28 | — | — | 4:27 | — | — | 4:25 | — | — | 4:24 | — | — | 4:23 | — | — | 4:22 | — | — | 4:22 | — |
mm | 8 | 9 | 19 | 9 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 15 | 12 | 11 | 11 | 12 | 12 | 12 | 11 | 9 | 11 | 14 | 14 | 10 | 11 | 9 | 6 | 8 | 8 |
Feels °C | 15 | 14 | 13 | 15 | 8 | 8 | 1 | 3 | 5 | 3 | 0 | -1 | 4 | 5 | 6 | 3 | 4 | 2 | 0 | 5 | 3 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 9 | SSE 6 | E 8 | SE 5 | SE 7 | SE 8 | SE 8 | NNW 5 | SE 10 | SE 11 | ESE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | NNW 4 | SE 9 |
| kJ | 8 | 6 | 55 | 12 | 30 | 62 | 49 | 21 | 14 | 54 | 56 | 40 | 25 | 25 | 20 | 19 | 19 | 8 | 7 | 10 | 3 |
Swell 2 Height (m) Direction Period (s) | E 5 | — | ENE 9 | ESE 8 | E 8 | E 7 | E 7 | E 6 | SE 8 | ENE 12 | SSW 5 | ENE 11 | ENE 11 | NNW 4 | S 7 | S 7 | S 7 | S 6 | S 6 | E 9 | E 11 |
| kJ | 1 | — | 8 | 6 | 11 | 10 | 8 | 3 | 10 | 14 | 5 | 12 | 11 | 2 | 4 | 4 | 1 | 1 | 1 | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 8 | SE 9 | NNW 5 | SW 10 | S 8 | SE 10 | — | ENE 11 | S 7 | S 7 | ENE 10 | ENE 10 | E 9 | E 9 | SW 5 | E 12 | S 6 | S 5 |
| kJ | — | — | — | 3 | 12 | 2 | 4 | 4 | 17 | — | 13 | 4 | 1 | 11 | 10 | 2 | 2 | 1 | 3 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | S 5 | S 6 | SW 5 | SSE 6 | SSE 6 | SW 4 | WNW 4 | NW 5 | W 4 | W 4 | WNW 5 | NW 6 | WNW 5 | SW 4 | W 5 | NW 6 | NW 5 | NW 4 | NW 4 | — | NNW 4 |
| kJ | 53 | 64 | 42 | 29 | 58 | 26 | 55 | 53 | 30 | 46 | 108 | 149 | 46 | 52 | 130 | 181 | 46 | 27 | 14 | — | 14 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 118 | 321 | 121 | 143 | 9 | 90 | 121 | 121 | 114 | 769 | 474 | 110 | 9 | 474 | 380 | 138 | 138 | 209 | 1696 | 1816 | 616 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Longnook Beach Surf forecast
The above surf forecast table for Longnook Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Longnook Beach can be found by selecting the local surf guide option on the grey menu. Our Longnook Beach 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 (Longnook Beach) 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 Longnook Beach 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.
Longnook Beach is 27 km (17 miles) from Brewster. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Brewster. Brewster has rooms for a wide range of budgets as well as car hire and transport links.
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