Surf Forecasts:
Grand Blvd surf forecast from 16 Aug 2026:
- Best quality surf: Monday 17 Aug, 11AM (local time) - 3ft (0.9m), 5s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 5AM (local time) - 3.5ft (1.1m), 5s period, S swell with 64 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11AM (local time) - 3ft (0.9m), 5s period with SSE swell.
Best Forecast Surf Conditions for Grand Blvd this week:
The surf forecast for Grand Blvd over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.3m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Grand Blvd in the next 16 days are 1.1m 5s and forecast to arrive on Monday (Aug 17) at 5AM. 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 6s period and expected on Friday (Aug 21) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Mon 17th Aug) | 3ft (0.9m) 5s |
| Best Surf | 11AM (Mon 17th Aug) | 3ft (0.9m) 5s |
| Most Powerful | 5AM (Mon 17th Aug) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Grand Blvd over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s cut to it – Grand Blvd is looking pretty flat and funky for the next stretch. You’ve got a long dry spell with almost no surf worth paddling out for. The real chance of anything decent doesn’t roll in until Thursday, August 27th, and even then it’s not a sure thing. The water temp is dead on average for the season, nothing weird there.
For the first week and a half, the combined swell energy is mostly under 100, which tells you the waves have no juice. Swell heights are 1 to 3 feet, with periods under 8 seconds – that’s weak, short-period wind swell. Winds are all over the place, mostly onshore or cross-onshore. Even the few clean mornings with offshore wind can’t make it happen because there’s just no swell.
The first sign of life shows up Thursday morning, August 27th – we get a 2ft swell from the SE with a 13-second period, which is a real groundswell with some push. The wind is offshore from the NW, clean and glassy. The combined energy is moderate at 116. The afternoon picks up to a 2ft swell from the SE at 12 seconds, with a solid offshore wind from the NNW. That’s the best combo in the whole outlook. Remember, a long period groundswell like this can run a bit straight on a beach break, so it might not be perfect, but it’ll be the only window with clean conditions and actual wave energy.
The real standout is the morning of Thursday, August 27th. Clean offshore breeze, moderate energy (116), and waist-high groundswell. If you’re keen, that’s your session. After that, Friday the 28th morning has clean cross-offshore wind and a 2ft swell, but the period drops to 10 seconds and the energy eases off a bit (77).
Otherwise, it’s a long wait. There’s pretty much a 10-day gap with nothing worth getting wet for until that Thursday. Forecasts can change, but right now, that Thursday morning is the only bright spot.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun night. Warm (max 29°C on Mon night, min 21°C on Sun night). Winds increasing (light winds from the SSE on Sat night, fresh winds from the S by Sun night). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Thu morning. Warm (max 28°C on Wed afternoon, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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) | SSE 6 | SSE 6 | S 4 | SSE 5 | SSE 5 | SSE 6 | SE 8 | SSE 7 | SSE 7 | SSE 7 | SE 7 | SSE 6 | SE 9 | SE 9 | SE 8 | E 5 | E 6 | E 6 | E 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 4 | 7 | 14 | 47 | 51 | 41 | 45 | 44 | 41 | 41 | 23 | 27 | 12 | 27 | 13 | 28 | 39 | 40 | 39 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | cross-off | cross | cross-off | off | on | cross-on | cross | on | off | cross-off | cross | glassy | cross | cross-on | cross |
High Tide | 10:18PM1.61m | 10:55AM1.61m | 11:06PM1.49m | 11:43AM1.56m | 11:55PM1.37m | 12:30PM1.50m | 00:44AM1.26m | 1:18PM1.45m | 1:34AM1.18m | 2:06PM1.40m | 2:27AM1.12m | 2:58PM1.38m | 3:25AM1.09m | ||||||
Low Tide | 4:37AM-0.09m | 4:59PM0.06m | 5:17AM0.02m | 5:46PM0.16m | 5:57AM0.13m | 6:36PM0.26m | 6:41AM0.23m | 7:35PM0.33m | 7:34AM0.32m | 8:39PM0.36m | 8:36AM0.37m | 9:41PM0.35m | |||||||
 |  | |  |  | | |  | | | | |  | |  | | |  | | |
 | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 7:52 | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | — | 4 | 1 | — | — | — | — | — | — | — | — | 4 | — | — | — | 1 | — |
Temp °C | 25 | 24 | 24 | 23 | 24 | 28 | 29 | 24 | 27 | 26 | 26 | 28 | 28 | 23 | 25 | 24 | 23 | 23 | 23 |
Feels °C | 25 | 23 | 20 | 21 | 27 | 29 | 30 | 25 | 26 | 26 | 26 | 26 | 27 | 25 | 26 | 26 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SE 9 | SE 8 | — | SSE 5 | SSE 6 | SE 8 | SSE 7 | SE 12 | SSE 7 | SE 7 | SE 9 | SSE 4 | SE 9 | SE 8 | E 5 | E 6 | E 6 | E 6 |
| kJ | 4 | 3 | 3 | — | 51 | 41 | 45 | 44 | 6 | 41 | 23 | 14 | 6 | 27 | 11 | 28 | 39 | 40 | 39 |
Swell 2 Height (m) Direction Period (s) | SE 9 | — | — | — | SE 8 | ESE 4 | S 7 | S 13 | SE 12 | SSE 11 | SSE 10 | — | SE 6 | S 5 | S 5 | ESE 8 | ESE 9 | S 6 | SE 14 |
| kJ | 3 | — | — | — | 11 | 8 | 14 | 3 | 6 | 12 | 9 | — | 11 | 2 | 2 | 7 | 7 | 2 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 12 | S 6 | S 6 | — | SE 9 | SE 9 | — | — | S 5 | SE 14 | SE 14 |
| kJ | — | — | — | — | — | — | — | — | 6 | 1 | 3 | — | 12 | 12 | — | — | 2 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | SSE 2 | SSE 6 | S 4 | SSE 5 | — | — | — | — | SSE 7 | — | — | SSE 6 | — | ENE 2 | E 4 | E 5 | NE 3 | NE 4 | — |
| kJ | 1 | 7 | 14 | 47 | — | — | — | — | 41 | — | — | 27 | — | 1 | 13 | 57 | 6 | 16 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1578 | 1389 | 3287 | 466 | 0 | 10 | 1 | 1 | 182 | 34 | 38 | 343 | 31 | 1 | 175 | 11 | 706 | 950 | 31 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Grand Blvd Surf forecast
The above surf forecast table for Grand Blvd provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Grand Blvd can be found by selecting the local surf guide option on the grey menu. Our Grand Blvd 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 (Grand Blvd) 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 Grand Blvd 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.
Grand Blvd is 2 km (1 miles) from Long Beach. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Long Beach. Long Beach has rooms for a wide range of budgets as well as car hire and transport links.
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