Surf Forecasts:
Coastguard Beach surf forecast from 20 Aug 2026:
- Best quality surf: Sunday 23 Aug, 5AM (local time) - 4ft (1.2m), 5s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 8AM (local time) - 2ft (0.6m), 13s period, E swell with 125 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 5AM (local time) - 4ft (1.2m), 5s period with SSE swell.
Best Forecast Surf Conditions for Coastguard Beach this week:
The surf forecast for Coastguard Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 5AM. The primary swell is predicted to be 1.2m and 5s period with a secondary swell of 0.9m and 5s. Another secondary swell of 0.2m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coastguard Beach in the next 16 days are 0.6m 13s and forecast to arrive on Saturday (Aug 22) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Aug 24) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 23rd Aug) | 4ft (1.2m) 5s |
| Best Surf | 5AM (Sun 23rd Aug) | 4ft (1.2m) 5s |
| Most Powerful | 8AM (Sat 22nd Aug) | 2ft (0.6m) 13s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let's get straight into it. If you're looking for waves at Coastguard Beach over the next 16 days, I’ve got to be honest with you – it’s looking pretty grim. The entire forecast period is a write-off for any decent surf. There's no standout sessions, no sneaky swell windows, and nothing that’s going to get you paddling out with a smile. The first few days are a total bust, and the pattern doesn't really improve. We’ve got a solid 16-day stretch of flat to tiny, messy conditions.
The first break we’re looking at is Coastguard Beach. It's a beginner-friendly spot, consistent, but it's exposed to swell from the SE, which isn't ideal given what's coming. The water temperature is about average for this time of year.
Right from the start, Thursday the 20th of August, it’s tiny. Morning brings a 1ft ESE swell with a short period of 7 seconds, and a weak combined energy of only 21. The wind is a light cross-off from the SSW, which is clean, but there’s just no power. By the afternoon, it drops to 1.0ft. The weekend doesn't get any better. Friday the 21st is a write-off with 1.0ft and onshore winds. Saturday the 22nd has a 2ft E swell, but it’s blown out with a 22 mph onshore wind in the afternoon, and the period is a pathetic 4 seconds. Sunday the 23rd is a similar story, with rain and weak onshore slop around 2ft.
The middle of the week offers a slight tease. Monday the 24th of August has a 4ft S swell in the afternoon, with a light offshore wind from the WSW, making it clean. But the period is a short 5 seconds, the combined energy is only 75, and the wave comment is still ‘poor surf conditions’. Tuesday the 25th is back to nothing. Wednesday the 26th is flat. Thursday the 27th is tiny and onshore. The next weekend, the 28th of August, the biggest swell on the chart shows up – a 4ft SE swell on Friday morning, but it’s a cross-onshore mess with a 5-second period. The energy is still weak at 82.
The last week of August and into September is more of the same. The 31st of August has a 4ft SSW swell with a moderate cross-off breeze, but again, a short period of 6 seconds. The combined energy finally hits 103, which is moderate, but the shape will be sloppy. After that, September kicks off with strong winds and tiny, chopped-out surf. The final days show a small 2ft ESE swell on the 4th of September, but it’s onshore and weak.
For a beginner spot, nothing here is even worth a paddle. The 4ft swells are small enough for learners, but the wind and short period kill any chance of a fun wave. For more experienced surfers, there’s simply nothing to ride. If you’re into kiting, the stronger onshore wind days might offer something, but for a paddle surfer, this is a total blank run. It’s a tough stretch, but it won’t stay poor forever. Forecasts can change.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Sat afternoon. Warm (max 26°C on Thu afternoon, min 18°C on Sat morning). Winds increasing (light winds from the SW on Thu morning, fresh winds from the E by Sat afternoon). | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Sat night. Warm (max 25°C on Mon afternoon, min 17°C on Tue morning). Winds decreasing (fresh winds from the SSE on Sat night, light winds from the NNW by Tue afternoon). | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | ESE 6 | ESE 7 | ESE 9 | ESE 7 | E 8 | ESE 8 | E 8 | E 4 | ESE 13 | SE 5 | SSE 6 | S 4 | S 6 | S 6 | S 5 | SE 5 | S 6 | E 6 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 6 | 18 | 16 | 10 | 12 | 13 | 32 | 12 | 17 | 35 | 24 | 14 | 19 | 27 | 67 | 7 | 3 | 3 | 7 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-on | on | on | cross-off | on | off | cross-off | off | cross-off | cross-off | off | cross | off |
High Tide | 5:47AM2.31m | 6:01PM2.56m | 6:46AM2.21m | 6:57PM2.51m | 7:46AM2.18m | 7:54PM2.50m | 8:43AM2.20m | 8:48PM2.55m | 9:33AM2.27m | 9:38PM2.62m | 10:18AM2.36m | 10:23PM2.70m | |||||||
Low Tide | 11:37PM0.68m | 11:42AM0.93m | 00:34AM0.76m | 12:38PM1.01m | 1:34AM0.80m | 1:35PM1.04m | 2:31AM0.78m | 2:31PM1.02m | 3:22AM0.72m | 3:23PM0.95m | 4:08AM0.64m | 4:10PM0.85m | 4:49AM0.56m | ||||||
 |  | |  | | |  |  |  |  |  |  |  |  | | | | | | |
 | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 7:34 | — | 7:32 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — |
mm | — | — | — | 1 | — | — | — | 6 | 22 | 16 | 4 | — | 8 | 2 | — | — | — | — | — |
Temp °C | 24 | 25 | 26 | 25 | 20 | 20 | 20 | 20 | 19 | 24 | 19 | 23 | 24 | 22 | 25 | 23 | 18 | 21 | 21 |
Feels °C | 23 | 27 | 26 | 25 | 18 | 19 | 20 | 19 | 16 | 24 | 20 | 26 | 22 | 21 | 22 | 21 | 14 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 7 | ESE 7 | ESE 7 | E 8 | ESE 8 | N 4 | S 6 | E 8 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | SE 5 | ESE 5 | N 4 | ESE 6 |
| kJ | 6 | 18 | 9 | 10 | 12 | 13 | 1 | 1 | 10 | 4 | 5 | 5 | 7 | 7 | 3 | 6 | 3 | 3 | 7 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | — | ESE 9 | E 9 | E 5 | NNW 4 | E 14 | SE 13 | E 13 | E 13 | E 7 | E 12 | E 12 | E 12 | E 11 | SW 3 | S 6 | ESE 5 | — |
| kJ | 6 | — | 16 | 2 | 2 | 3 | 4 | 7 | 3 | 13 | 4 | 11 | 11 | 11 | 2 | 3 | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | S 6 | SE 9 | E 8 | E 15 | E 15 | E 14 | E 14 | S 6 | ESE 13 | E 13 | E 12 | E 7 | ESE 12 | E 11 | E 12 | S 6 | E 6 | E 6 | E 11 |
| kJ | 2 | 3 | 5 | 4 | 4 | 4 | 14 | 1 | 17 | 13 | 11 | 4 | 14 | 2 | 3 | 7 | 3 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 4 | — | S 3 | N 4 | NNW 3 | — | E 8 | E 4 | SE 4 | SE 5 | SSE 6 | S 4 | S 6 | S 6 | S 5 | WNW 2 | NNW 4 | SW 4 | WSW 3 |
| kJ | 4 | — | 4 | 6 | 1 | — | 32 | 12 | 12 | 35 | 24 | 14 | 19 | 27 | 67 | 1 | 10 | 10 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 10 | 132 | 10 | 477 | 880 | 132 | 412 | 186 | 139 | 102 | 10 | 128 | 10 | 8 | 129 | 140 | 132 | 186 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- 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 Coastguard Beach 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 Coastguard Beach Surf forecast
The above surf forecast table for Coastguard Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Coastguard Beach can be found by selecting the local surf guide option on the grey menu. Our Coastguard 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 (Coastguard 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 Coastguard 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.
Coastguard Beach is 14 km (9 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.
Nearest