Surf Forecasts:
Castles surf forecast from 12 Aug 2026:
- Best quality surf: Monday 17 Aug, 2AM (local time) - 4.5ft (1.4m), 6s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 8PM (local time) - 2.5ft (0.7m), 13s period, SE swell with 180 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2AM (local time) - 4.5ft (1.4m), 6s period with S swell.
Best Forecast Surf Conditions for Castles this week:
The surf forecast for Castles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 2AM. The primary swell is predicted to be 1.4m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 0.7m 13s and forecast to arrive on Tuesday (Aug 18) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Thursday (Aug 13) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 17th Aug) | 4.5ft (1.4m) 6s |
| Best Surf | 2AM (Mon 17th Aug) | 4.5ft (1.4m) 6s |
| Most Powerful | 8PM (Tue 18th Aug) | 2.5ft (0.7m) 13s |
Table - best surf conditions forecast for Castles over the next 16 days.
The Lowdown
Alright, let’s roll with what we’ve got. This is Castles (Castles-2), our only spot on the radar for this stretch.
Right off the bat, the water is sitting at 79°F with a 5°F anomaly – that’s much warmer than usual for this time of year. It’s a nice surprise, but it’s not gonna make up for the lack of decent surf.
The whole 16-day window is a pretty grim run. We’re looking at a long, dry spell with basically no real surf on offer. From Wednesday the 12th through to Sunday the 16th, it’s all poor surf conditions – tiny, weak, messy slop. Swell heights barely break 1.0 ft, and the combined energy is stuck in the single digits and low teens (9 to 64). Winds are mostly cross-on or onshore, and the period is short and weak. Not worth paddling out for.
Monday the 17th morning shows a little pulse: a 3 ft S swell (period 7 seconds) with NNW cross-off wind, giving clean surf. But the energy is still low at 92, and the waves are pretty ordinary. Better than nothing, but just barely.
We then hit another gap of poor conditions through Tuesday the 18th and Wednesday the 19th. The swell stays tiny, under 2 ft, and winds are messy. Energy picks up a bit Tuesday afternoon (128) but it’s onshore and onshore, so no good.
Thursday the 20th is a write-off – strong cross-onshore winds and a small, weak swell.
Now, Friday the 21st is the only real standout in the whole outlook. The morning brings a 6 ft S swell with a 7-second period, NNW cross-off wind at 25 km/h, and a combined energy of 286 – that’s moderate wave energy. Conditions are clean. This is the best you’re going to get. The swell direction is from the south, which aligns with the optimum SE direction for Castles. It’s a solid size for a sandbar, but with the period short, it’ll be a bit punchy and less organized. Definitely worth a session if you’re keen.
After that, it’s back to the doldrums. Saturday the 22nd and Sunday the 23rd are weak, small, and mostly onshore. The 23rd has a tiny 0.7 ft ESE swell with a very long 13-second period, and offshore NW wind in the afternoon, but it’s so small it’s barely a ripple.
The final week from Monday the 24th to Thursday the 27th sees a steady increase in swell size, but it’s accompanied by strong onshore winds and messy conditions. By Tuesday the 25th, we’ve got a 7 ft E swell (7-second period) with energy at 491, and Wednesday the 26th pushes 8 ft E with 588 energy. This is serious swell energy, but the wind is always cross-on or onshore, making it lumpy, choppy, and poor quality. For a sandbar, this setup is more interesting for kite surfing than paddle surfing. Stick to the earlier Friday session.
So, the bottom line: Friday the 21st morning is your one clear window. Everything else is a bust. If you’re patient, it’s a good day to be out, but otherwise, this is a tough stretch for surf.
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 31°C on Thu afternoon, min 23°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Sun night. Warm (max 28°C on Mon afternoon, min 23°C on Sat morning). Winds decreasing (fresh winds from the SSW on Sun afternoon, light winds from the NNE by Mon afternoon). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 | S 6 | SSW 4 | SSW 5 | SSW 5 | ESE 9 | ESE 9 | SSW 6 | S 6 | NE 5 | ENE 4 | SSE 6 | S 6 | S 5 | S 6 | S 7 | SSE 7 | SSE 6 | SSE 9 | SSE 9 | SE 12 |
Wave Graph | |||||||||||||||||||||
5 | 7 | 13 | 29 | 15 | 8 | 8 | 10 | 10 | 30 | 13 | 19 | 15 | 63 | 125 | 92 | 77 | 33 | 56 | 58 | 149 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross-off | off | cross-off | cross-off | cross-on | cross-off | cross | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-on | cross-off | cross | on | cross-off |
High Tide | 8:47AM1.20m | 9:06PM1.51m | 9:37AM1.26m | 9:54PM1.48m | 10:23AM1.30m | 10:38PM1.41m | 11:08AM1.30m | 11:21PM1.32m | 11:54AM1.29m | 00:06AM1.21m | 12:40PM1.26m | 00:52AM1.10m | 1:27PM1.22m | 1:39AM1.01m | |||||||
Low Tide | 2:41PM-0.06m | 3:31AM-0.09m | 3:32PM-0.06m | 4:14AM-0.09m | 4:21PM-0.04m | 4:55AM-0.06m | 5:09PM0.02m | 5:38AM0.00m | 6:00PM0.10m | 6:22AM0.08m | 6:54PM0.18m | 7:06AM0.16m | 7:48PM0.24m | ||||||||
6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 7:57 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | |
mm | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 2 | 17 | — | — | — | — | — | — |
Temp °C | 25 | 27 | 26 | 26 | 31 | 29 | 25 | 26 | 25 | 23 | 23 | 23 | 25 | 25 | 25 | 26 | 28 | 26 | 24 | 25 | 25 |
Feels °C | 25 | 27 | 24 | 27 | 30 | 29 | 24 | 24 | 24 | 21 | 20 | 21 | 23 | 23 | 25 | 27 | 29 | 27 | 23 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | S 6 | ESE 8 | ESE 8 | ESE 8 | SSW 5 | S 5 | S 5 | ESE 9 | S 6 | S 5 | ENE 4 | NE 4 | SE 9 | NE 5 | — | S 7 | SSE 7 | SSE 6 | SSE 9 | SSE 9 | SE 12 |
5 | 7 | 7 | 7 | 15 | 4 | 5 | 9 | 10 | 2 | 13 | 3 | 12 | 1 | — | 92 | 77 | 33 | 56 | 58 | 149 | |
Swell 2 Height (m) Direction Period (s) | SE 8 | — | E 8 | SE 11 | ESE 8 | ESE 9 | NNE 4 | — | ESE 9 | ESE 9 | S 6 | ESE 9 | ENE 5 | — | — | — | — | SE 9 | SE 15 | SE 14 | NE 4 |
3 | — | 1 | 4 | 7 | 8 | 2 | — | 8 | 8 | 7 | 8 | 2 | — | — | — | — | 13 | 8 | 30 | 3 | |
Swell 3 Height (m) Direction Period (s) | E 8 | E 7 | SE 11 | SE 14 | SE 11 | SE 7 | ESE 9 | SE 13 | E 7 | S 7 | SE 9 | — | — | — | — | — | — | — | — | SE 14 | — |
1 | 1 | 5 | 8 | 4 | 2 | 8 | 7 | 1 | 1 | 3 | — | — | — | — | — | — | — | — | 29 | — | |
Wind waves Height (m) Direction Period (s) | N 2 | S 6 | SSW 4 | SSW 5 | — | NNW 2 | — | SSW 6 | W 3 | NE 5 | — | SSE 6 | S 6 | S 5 | S 6 | — | — | — | NE 4 | NE 4 | — |
1 | 5 | 13 | 29 | — | 1 | — | 10 | 2 | 30 | — | 19 | 15 | 63 | 125 | — | — | — | 17 | 11 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2398 | 2518 | 944 | 4 | 222 | 2209 | 1079 | 3132 | 565 | 707 | 1072 | 1297 | 1201 | 1455 | 0 | 0 | 32 | 32 | 157 | 418 | 0 |
Best forecast wave conditions in New Jersey | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Castles Surf forecast
The above surf forecast table for Castles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castles can be found by selecting the local surf guide option on the grey menu. Our Castles 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 (Castles) 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 Castles 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.
Castles is 8 km (5 miles) from Atlantic City. If you plan a vacation in New Jersey, look for hotels and other accommodation in Atlantic City. Atlantic City has rooms for a wide range of budgets as well as car hire and transport links.











