Surf Forecasts:
Coastguard Beach surf forecast from 19 Aug 2026:
- Most powerful swell: Saturday 22 Aug, 8AM (local time) - 2ft (0.6m), 13s period, E swell with 125 kJ wave energy.
Best Forecast Surf Conditions for Coastguard Beach this week:
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 1.2m 5s period and expected on Monday (Aug 24) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| 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, Rusty here. Let's be straight with you – the next couple of weeks are looking pretty grim for a paddle. We've got one spot on the map, Coastguard Beach, and it’s shaping up to be a long, quiet stretch.
The whole 16-day forecast is a bit of a write-off. There's a gap right from the start with no real surf to get excited about, and it just keeps on going. We're looking at a solid week and a half of nothing doing.
For the first week, from Wednesday the 19th of August right through to Monday the 31st of August, the swell is tiny. We're talking ankle-biters, mostly 0.3ft to 3ft, with no real energy behind any of it. The numbers back that up – the combined swell energy is weak, barely cracking 50 at any point. It's a beggars-can't-be-choosers situation, and the conditions are mostly messy with cross-shore and onshore winds. The water temp at Coastguard Beach is about average for this time of year, but you won't be in it long enough to notice. Honestly, it’s more of a kite-surfing breeze than a surfing swell on most of those days with those onshore winds, especially around the 27th and 28th.
There are a couple of moments that might make you think twice. On the morning of Sunday the 23rd, we get a glimpse of a longer period groundswell (12 seconds) from the ESE, but it's only 0.9ft high with weak energy (62). That’s a lot of wait for barely a ripple. Then on Monday the 24th afternoon, the wind goes glassy, but the swell is a pathetic 0.6ft from the east. The tap is just barely dripping.
Moving into the second week, it doesn't get better. From the 1st of September, the swell height stays below 0.9ft and the wind picks up strongly, hitting 24 mph from the north-northeast on the 31st of August. Even when the wind turns clean cross-off on the 1st and 2nd of September, there’s simply no swell to work with. The long-period energy from the east (14-17 seconds) is there, but it’s so weak it’s almost a taunt. This is the kind of blank run that hits hard.
So, there's no standout day, no hidden gem, and certainly no reason to rush out the door. The best I can say is keep the board waxed and wait for a shift in the pattern. For the near future, it's a total flat spell.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Wed afternoon, min 20°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 24°C on Mon afternoon, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | SE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | E 8 | E 9 | NNE 4 | ESE 8 | E 8 | E 4 | E 4 | E 5 | ESE 12 | E 12 | ESE 6 | SE 6 | E 6 | SE 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 16 | 16 | 8 | 6 | 20 | 11 | 6 | 20 | 15 | 11 | 12 | 30 | 42 | 28 | 11 | 20 | 14 | 3 | 4 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | on | on | on | cross | cross-on | cross-off | cross-off | glassy | cross-off |
High Tide | 4:52AM2.46m | 5:08PM2.66m | 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 | |||||||
Low Tide | 10:42PM0.56m | 10:51AM0.79m | 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 | ||||||
 |  | | |  | |  | | | |  |  |  | | | | | | | |
 | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | 7:36 | — | 7:34 | — | — | 7:32 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — |
Temp °C | 22 | 24 | 25 | 23 | 25 | 25 | 21 | 20 | 21 | 21 | 20 | 19 | 17 | 19 | 19 | 22 | 23 | 24 | 24 |
Feels °C | 23 | 25 | 24 | 22 | 26 | 26 | 20 | 17 | 18 | 19 | 17 | 15 | 16 | 20 | 19 | 24 | 23 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | E 7 | ESE 8 | ESE 8 | E 8 | S 5 | E 13 | ESE 12 | E 7 | ESE 6 | ESE 6 | SE 6 | E 6 | SE 5 |
| kJ | 16 | 16 | 8 | 6 | 20 | 9 | 4 | 14 | 13 | 11 | 1 | 13 | 15 | 4 | 8 | 20 | 14 | 3 | 4 |
Swell 2 Height (m) Direction Period (s) | ENE 4 | E 8 | E 8 | ESE 8 | SSW 3 | E 8 | SE 7 | E 15 | E 14 | NNE 4 | SE 13 | SE 13 | E 8 | E 12 | ENE 4 | E 12 | E 6 | E 12 | S 6 |
| kJ | 2 | 1 | 1 | 6 | 1 | 11 | 2 | 4 | 4 | 1 | 7 | 7 | 5 | 11 | 2 | 11 | 2 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | ESE 8 | NE 4 | — | S 6 | SW 3 | SE 9 | E 9 | E 7 | E 14 | E 14 | S 5 | SE 9 | E 13 | ESE 12 | E 12 | ESE 12 | E 12 | E 11 | E 6 |
| kJ | 7 | 1 | — | 2 | 2 | 3 | 6 | 1 | 4 | 4 | 1 | 3 | 13 | 28 | 11 | 14 | 11 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | SSW 4 | SSW 4 | — | WSW 3 | W 3 | NNE 4 | NE 4 | ESE 3 | E 4 | E 4 | E 5 | ESE 5 | SSE 4 | SSW 4 | SW 4 | SSW 5 | SW 4 |
| kJ | — | 1 | 15 | 7 | — | 1 | 2 | 20 | 15 | 2 | 12 | 30 | 42 | 19 | 10 | 5 | 8 | 56 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 10 | 129 | 137 | 10 | 132 | 132 | 139 | 852 | 132 | 618 | 568 | 579 | 66 | 180 | 10 | 129 | 134 | 66 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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.
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