
Surf Forecasts:
Coastguard Beach surf forecast from 8 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8AM (local time) - 1.5ft (0.5m), 8s period, SE swell with 35 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 0.5m 8s and forecast to arrive on Saturday (Aug 15) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Aug 08) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 15th Aug) | 1.5ft (0.5m) 8s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve got to be straight with you: the next couple of weeks are looking pretty grim for a proper paddle. We’ve got a long stretch of tiny, weak surf and mostly cross or onshore breezes messing things up. It’s not a total write-off, but you’ll be chasing shadows, not set waves. The first real opportunity doesn't even show up until the 15th, and even then, it's marginal. We’re looking at a solid week of nothing before that.
Starting off this Saturday the 8th, it’s flat as a tack. Coastguard Beach is seeing a mere 0.3ft of swell with next to no energy behind it (3). The wind is a cross-off in the morning but it’s not doing anything for a wave that small. The water temp is sitting at 69°F, which is about normal for this time of year, so no surprises there. The whole weekend is a scratch. Sunday the 9th brings a sniff of 1ft but it’s still gutless (10 on the energy scale) and the wind swings around, so it’s not worth getting wet for.
The beginning of next week, from the 10th to the 13th, is more of the same. Tiny bits of swell, but the wind is all over the shop – cross, cross-on, even a bit of cross-off, but the waves never get above 1ft. The energy is weak, in the single digits to low teens. You’d be better off doing anything else. There’s a slight bump on Thursday the 14th with 3ft, but the period drops to a rubbish 4 seconds, so it’s just a jumbled mess of whitewater. Not a chance.
Now, onto the one bright spot, and I mean the only one worth circling on the calendar. Saturday the 15th of August. The morning looks like our best bet. Coastguard Beach (Big Island) sees the swell push to a whole 2ft, but the period jumps up to 9 seconds, and the energy reading finally gets into double digits (40). The wind is a clean offshore from the WNW, which will make it glassy and clean. The swell direction is SE, though, which is not the optimum for this spot, so expect it to be a bit softer and less organized. It’s small, but it’s the most surfable it’s been all week. The afternoon sees the wind swing onshore, so get in early. It’s not a standout ride, but it’s the best we’ve got.
After that, the tap basically turns off again. The rest of the second week drops back down to 0.7ft – 1ft with weak energy and poor wind. There’s a slight bump in the swell on the 20th and 21st, getting to 3ft, but the period is short (5-6 seconds) and the wind is cross-onshore, making it choppy and bumpy. Honestly, with that sort of short-period swell and strong cross-shore winds, that setup at a beach break like this might be more interesting for the kite surfers than for us. The final days, the 22nd and 23rd, have similar swell (2ft – 2ft) but the wind is all over the place.
So, there you have it. A long, flat stretch with one morning on the 15th that’s worth a look if you’re desperate and the swell direction co-operates. It’s a long-range call, so don’t bet the farm on it, but it’s the only window with a clean offshore wind and a pulse of energy. Everything else is a skunk. Keep an eye on the charts, but for now, I’d be waxing the longboard and hoping for a miracle.
Rusty, out.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat morning. Warm (max 29°C on Sun afternoon, min 23°C on Mon night). Winds decreasing (fresh winds from the SW on Sat afternoon, light winds from the NE by Mon morning). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Tue night. Warm (max 28°C on Tue afternoon, min 20°C on Wed afternoon). Mainly fresh winds. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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) | SE 8 | E 9 | E 8 | SSE 7 | E 9 | S 7 | S 6 | S 6 | E 9 | E 9 | E 9 | SW 5 | S 6 | SSE 6 | NNE 5 | SSE 6 | NE 4 | SSE 7 | S 4 | S 4 | ESE 9 |
Wave Graph | |||||||||||||||||||||
2 | 2 | 2 | 9 | 2 | 3 | 7 | 11 | 2 | 2 | 2 | 5 | 11 | 4 | 28 | 4 | 2 | 5 | 19 | 9 | 7 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross | cross-off | off | cross-off | off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | off | cross-off |
High Tide | 7:54PM2.91m | 8:43AM2.50m | 8:58PM3.02m | 9:45AM2.63m | 9:59PM3.13m | 10:42AM2.77m | 10:56PM3.22m | 11:35AM2.90m | 11:50PM3.26m | 12:26PM3.00m | 00:42AM3.24m | 1:14PM3.05m | 1:32AM3.15m | ||||||||
Low Tide | 1:32PM0.73m | 2:31AM0.40m | 2:38PM0.65m | 3:32AM0.28m | 3:41PM0.54m | 4:30AM0.16m | 4:40PM0.41m | 5:23AM0.06m | 5:36PM0.30m | 6:13AM0.02m | 6:29PM0.23m | 7:01AM0.04m | 7:20PM0.21m | ||||||||
5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | |
— | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | |
mm | 2 | — | — | — | — | — | — | — | 1 | — | — | 13 | 1 | — | — | — | — | — | 13 | — | — |
Temp °C | 27 | 28 | 26 | 27 | 29 | 29 | 25 | 26 | 25 | 25 | 28 | 26 | 22 | 20 | 21 | 21 | 24 | 23 | 23 | 27 | 25 |
Feels °C | 29 | 28 | 25 | 28 | 30 | 28 | 26 | 24 | 23 | 25 | 28 | 26 | 23 | 19 | 22 | 20 | 23 | 20 | 21 | 26 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 7 | E 8 | SSE 7 | E 8 | SSW 4 | S 6 | N 4 | SE 5 | E 7 | E 7 | SW 5 | S 6 | S 4 | S 6 | NE 4 | NE 4 | SSE 7 | E 13 | S 4 | SE 4 |
2 | 2 | 1 | 9 | 1 | 3 | 7 | 1 | 1 | 1 | 1 | 5 | 11 | 3 | 6 | 4 | 2 | 5 | 3 | 9 | 5 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 9 | SE 7 | — | E 9 | S 7 | N 3 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | SSE 6 | E 7 | SSE 6 | E 10 | E 10 | E 9 | SSE 8 | SSE 6 |
1 | 1 | 2 | — | 2 | 3 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 4 | 2 | 2 | 2 | 6 | 4 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 8 | — | E 8 | E 8 | E 10 | E 9 | — | — | E 9 | E 8 | S 6 | E 11 | E 10 | SE 7 | — | E 13 | E 13 | ESE 9 |
— | — | — | 1 | — | 1 | 1 | 2 | 2 | — | — | 1 | 1 | 3 | 2 | 2 | 2 | — | 3 | 3 | 7 | |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | NW 3 | — | S 6 | SW 3 | SW 4 | SW 4 | N 3 | — | N 3 | NNE 5 | — | S 3 | SSW 4 | S 4 | — | NNW 3 |
6 | 26 | 12 | 3 | 17 | 3 | — | 11 | 6 | 5 | 23 | 1 | — | 1 | 28 | — | 4 | 13 | 19 | — | 3 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 180 | 375 | 106 | 136 | 375 | 66 | 620 | 486 | 167 | 205 | 2417 | 534 | 136 | 66 | 11 | 486 | 2608 | 477 | 1052 | 3405 | 138 |
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)
Latest Updates
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.











