- Forecast
- Maps
- Live
- Weather State
- Spot Information
Brant Rock Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Brant Rock surfForecast / Massachusetts / USA
12 Day Weather and Surf, issued 7 pm Sunday 29 Jun 2025 EDT
Best Forecast Surf Conditions for Brant Rock this week:
The most powerful waves expected at Brant Rock in the next 12 days are 0.5m 8s and forecast to arrive on Monday (Jun 30) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Jul 06) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Mon 30th Jun) | 1.5ft (0.5m) 8s |
Table - best surf conditions forecast for Brant Rock over the next 12 days.
Monday 30 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Fri 11 | |||||||||||||||||||||||||
| 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 | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 18 | 9 | 8 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 13 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 5 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 42 | 38 | 35 | 31 | 23 | 15 | 23 | 22 | 22 | 29 | 12 | 19 | 18 | 18 | 14 | 17 | 18 | 25 | 27 | 24 | 25 | 19 | 17 | 28 | 25 | 22 | 22 | 32 | 18 | 28 | 18 | 25 | 21 | 26 | 67 | 69 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | cross- off | off | off | off | off | cross- off | off | off | glass | cross- off | off | cross- on | cross | cross- off | glass | cross- off | off | off | off | off | off | off | cross- off | on | cross- on | on | on | on | cross- on | cross- on | on | off | glass | cross |
High Tide / height (m) | 3:33AM 3.04 | 4:09PM 2.76 | 4:24AM 2.87 | 5:00PM 2.74 | 5:18AM 2.71 | 5:50PM 2.71 | 6:13AM 2.56 | 6:42PM 2.69 | 7:09AM 2.45 | 7:33PM 2.69 | 8:06AM 2.38 | 8:23PM 2.69 | 9:01AM 2.35 | 9:12PM 2.72 | 9:52AM 2.34 | 9:59PM 2.75 | 10:38AM 2.36 | 10:43PM 2.80 | 11:21AM 2.38 | 11:25PM 2.86 | 12:02PM 2.43 | 12:06AM 2.92 | 12:42PM 2.49 | |||||||||||||
Low Tide / height (m) | 9:16PM 0.24 | 9:51AM 0.03 | 10:09PM 0.31 | 10:40AM 0.16 | 11:04PM 0.37 | 11:29AM 0.29 | 11:59PM 0.42 | 12:19PM 0.41 | 12:55AM 0.44 | 1:09PM 0.51 | 1:51AM 0.44 | 2:00PM 0.59 | 2:45AM 0.41 | 2:50PM 0.62 | 3:35AM 0.37 | 3:39PM 0.63 | 4:23AM 0.33 | 4:24PM 0.62 | 5:07AM 0.27 | 5:08PM 0.58 | 5:49AM 0.21 | 5:50PM 0.52 | 6:30AM 0.15 | 6:32PM 0.46 | ||||||||||||
Monday 30 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Fri 11 | |||||||||||||||||||||||||
| Sunrise | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:11 | - | - | 5:11 | - | - | 5:11 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:15 | - | - | 5:15 | - | - | 5:16 | - |
| Sunset | - | - | 8:22 | - | - | 8:22 | - | - | 8:22 | - | - | 8:21 | - | - | 8:21 | - | - | 8:21 | - | - | 8:21 | - | - | 8:20 | - | - | 8:20 | - | - | 8:20 | - | - | 8:19 | - | - | 8:19 |
 | |  |  |  | |  | | |  | | | | | | | | |  |  | | | | |  | | |  | |  | | | | | | | |
Rain (mm) | - | - | - | - | 1 | - | 4 | - | - | - | - | - | - | - | - | - | - | - | 4 | 1 | - | - | - | - | 5 | 2 | 4 | 19 | 2 | - | - | - | - | - | - | - |
| Temp. °C | 22 | 20 | 26 | 24 | 24 | 29 | 24 | 27 | 30 | 27 | 25 | 30 | 26 | 23 | 24 | 23 | 25 | 27 | 22 | 29 | 34 | 28 | 32 | 35 | 18 | 17 | 16 | 15 | 15 | 16 | 16 | 16 | 18 | 18 | 20 | 22 |
| Feels °C (?) | 23 | 22 | 26 | 23 | 24 | 28 | 24 | 27 | 30 | 27 | 26 | 28 | 23 | 21 | 22 | 22 | 24 | 25 | 19 | 30 | 34 | 28 | 32 | 34 | 18 | 17 | 14 | 12 | 13 | 14 | 13 | 13 | 17 | 18 | 20 | 21 |
Short Range Forecast: Light rain (total 5mm), mostly falling on Tue night. Warm (max 30°C on Wed afternoon, min 18°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 30°C on Thu afternoon, min 20°C on Thu night). Wind will be generally light. | Days 6-9 Weather Summary Moderate rain (total 16mm), heaviest on Sat night. Warm (max 35°C on Mon afternoon, min 16°C on Tue afternoon). Wind will be generally light. | Long Range Forecast: Heavy rain (total 21mm), heaviest during Tue night. Warm (max 22°C on Fri afternoon, min 15°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Brant Rock 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 Brant Rock Surf forecast
The above surf forecast table for Brant Rock provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Brant Rock can be found by selecting the local surf guide option on the grey menu. Our Brant Rock 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 (Brant Rock) 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 Brant Rock 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.
Brant Rock is 5 km (3 miles) from Marshfield. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Marshfield. Marshfield has rooms for a wide range of budgets as well as car hire and transport links.
Nearest