Surf Forecasts:
Horseneck Beach surf forecast from 20 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 11PM (local time) - 4ft (1.2m), 6s period, S swell with 116 kJ wave energy.
Best Forecast Surf Conditions for Horseneck Beach this week:
The most powerful waves expected at Horseneck Beach in the next 16 days are 1.2m 6s and forecast to arrive on Sunday (Aug 23) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Thursday (Aug 20) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Sun 23rd Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Horseneck Beach over the next 16 days.
The Lowdown
Alright, folks, let’s talk about Horseneck Beach. This is a long 16-day outlook, and to be honest, the first week and a half is a real snoozer. We’ve got a big gap from now until the morning of Friday, August 28th, where the surf is just poor. Tiny, messy, weak waves – combined energy numbers in the single digits and low double digits, like 5 and 6. It’s dead.
Then, finally, on the morning of Friday, August 28th, we get a little life. Swell picks up to 1.6m from the South, with a period of 6 seconds. The combined energy jumps to 311 (moderate) – that’s the first real punch. The wind is light from the NE, so it’s a clean cross-offshore breeze. That’s the one standout in the whole window. The waves will be a bit short-period and fat, but for a beginner-friendly sandbar, it’s rideable. The water temp is about average for this time of year.
That morning on the 28th is the best window. The afternoon of the 28th drops back to small 1.0m, and from the 29th of August through to the 4th of September, it’s all small, choppy, and weak. There’s a second hopeful window on the morning of Friday, September 4th – a clean 1.1m SE swell, 9-second period, and glassy conditions, with combined energy at 301 (moderate). That’s a long way out, so don’t plan your life around it, but it’s a nice possibility.
For beginners, the 1.6m on the 28th is about the max you’d want, and the 1.1m on the 4th is great for a longboard. Crowds are “sometimes” here, so you’ll usually get a bit of room.
So, the only real lights in this darkness are the mornings of the 28th of August and the 4th of September. The rest is a write-off. Keep your expectations low.
Rusty.
Short Range ForecastHeavy rain (total 51mm), heaviest during Sat afternoon. Warm (max 25°C on Thu morning, min 19°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sun morning. Warm (max 23°C on Sun night, min 15°C on Mon night). Winds increasing (calm on Sun afternoon, fresh winds from the SW by Mon afternoon). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | S 6 | SW 3 | SE 8 | SE 8 | SE 8 | E 3 | S 5 | S 5 | S 5 | S 5 | S 6 | S 6 | SSW 6 | SSW 7 | S 7 | SSW 6 | SE 10 | SSW 6 | SSW 6 | SSW 3 | SSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 2 | 3 | 3 | 3 | 3 | 9 | 8 | 23 | 28 | 48 | 104 | 72 | 113 | 33 | 14 | 17 | 8 | 13 | 7 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross | cross-on | cross-on | cross | glassy | cross-off | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-on | cross-off | cross-on | on | cross |
High Tide | 2:43PM0.86m | 3:03AM0.70m | 3:41PM0.82m | 4:02AM0.68m | 4:45PM0.81m | 5:04AM0.70m | 5:45PM0.83m | 6:00AM0.74m | 6:32PM0.87m | 6:46AM0.80m | 7:11PM0.92m | 7:26AM0.87m | 7:45PM0.96m | ||||||||
Low Tide | 9:20PM0.29m | 8:34AM0.24m | 10:39PM0.28m | 9:47AM0.24m | 11:30PM0.25m | 10:53AM0.22m | 00:12AM0.21m | 11:48AM0.17m | 00:52AM0.16m | 12:37PM0.13m | 1:28AM0.11m | 1:22PM0.09m | 2:03AM0.06m | ||||||||
 |  |  | | | |  | |  | |  |  | | |  | | | | | |  | |
 | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — |
 | — | 7:36 | — | — | 7:35 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — |
mm | — | — | — | — | — | — | 15 | 31 | 5 | 11 | 6 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 24 | 24 | 22 | 19 | 21 | 21 | 21 | 22 | 23 | 21 | 22 | 22 | 19 | 21 | 21 | 21 | 22 | 21 |
Feels °C | 25 | 23 | 21 | 23 | 22 | 20 | 18 | 25 | 23 | 23 | 24 | 24 | 18 | 18 | 19 | 15 | 17 | 17 | 20 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 5 | S 5 | N 3 | — | SE 8 | SE 8 | S 5 | S 5 | S 13 | S 5 | S 12 | S 12 | S 12 | S 11 | S 7 | SSW 6 | SE 5 | SSW 6 | SE 9 | SE 10 | SE 10 |
| kJ | 3 | 2 | 1 | — | 3 | 3 | 9 | 8 | 3 | 28 | 3 | 3 | 3 | 2 | 33 | 14 | 1 | 8 | 3 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | S 6 | SE 7 | S 5 | SE 8 | — | SW 5 | SE 8 | SE 9 | S 9 | S 12 | SE 9 | — | — | — | S 11 | SSE 6 | SE 10 | SE 11 | SE 5 | S 13 | SE 6 |
| kJ | 2 | 2 | 1 | 3 | — | 1 | 3 | 3 | 2 | 3 | 3 | — | — | — | 2 | 3 | 4 | 4 | 1 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 6 | S 9 | SE 8 | — | — | — | S 13 | S 13 | E 8 | S 8 | — | — | — | — | SSE 11 | S 11 | SE 10 | SE 5 | SE 5 | — | E 12 |
| kJ | 2 | 1 | 3 | — | — | — | 3 | 3 | 1 | 1 | — | — | — | — | 11 | 2 | 17 | 1 | 1 | — | 3 |
Wind waves Height (m) Direction Period (s) | — | SW 3 | NNW 3 | — | — | E 3 | E 4 | E 4 | S 5 | — | S 6 | S 6 | SSW 6 | SSW 7 | NW 2 | — | SSW 6 | SW 3 | SSW 6 | SSW 3 | SSW 4 |
| kJ | — | 2 | 2 | — | — | 1 | 7 | 1 | 23 | — | 48 | 104 | 72 | 113 | 1 | — | 15 | 3 | 13 | 7 | 20 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 101 | 88 | 149 | 101 | 575 | 799 | 149 | 315 | 88 | 40 | 102 | 101 | 31 | 37 | 37 | 37 | 83 | 149 | 88 | 107 | 1158 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Horseneck Beach Surf forecast
The above surf forecast table for Horseneck Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Horseneck Beach can be found by selecting the local surf guide option on the grey menu. Our Horseneck 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 (Horseneck 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 Horseneck 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.
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