Surf Forecasts:
Castles surf forecast from 13 Aug 2026:
- Best quality surf: Monday 17 Aug, 5AM (local time) - 4ft (1.2m), 7s period, S swell with offshore winds.
- Most powerful swell: Sunday 16 Aug, 11PM (local time) - 5.5ft (1.7m), 7s period, S swell with 255 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 5AM (local time) - 4ft (1.2m), 7s 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 5AM. The primary swell is predicted to be 1.2m and 7s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 1.7m 7s and forecast to arrive on Sunday (Aug 16) at 11PM. Winds are predicted to be cross-shore 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 15) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 17th Aug) | 4ft (1.2m) 7s |
| Best Surf | 5AM (Mon 17th Aug) | 4ft (1.2m) 7s |
| Most Powerful | 11PM (Sun 16th Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Castles over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get stuck into the outlook for Castles. To be straight with you, it's a tough read for the next couple of weeks. The north-west winds are cleaning things up at times, but the swell just isn't putting in the work.
The water temp is sitting at a balmy 79°, which is a solid 5° warmer than the norm for this time of year. That's a proper tropical bath for this time of August.
The forecast kicks off with tiny leftovers. Thursday the 13th and Friday the 14th have next to no swell – we're talking ankle-biters at 0.7ft to 1ft from the ESE. The morning winds are light and cross-off, so it's clean, but there's simply no push. The combined energy is a paltry 13, so you'd be doing more floating than surfing. The weekend gets a little bump, but it's junky. Saturday the 15th sees a short-period 3ft from the ENE, but it's blown out by a 12 mph cross-on easterly breeze making it choppy. Sunday the 16th is worse, with a 25 mph southerly making it a 5ft mess of windslop (combined energy 130).
We do get a little window on Monday the 17th morning. The swell is a cleaner 4ft out of the south with a 7-second period, and the wind is offshore from the NW at 6 mph (combined energy 138). It's surfable, but it's still very ordinary and lumpy. That's the best we've got right now, and it's barely a 1 out of 10.
After that, it's a rinse and repeat of very small surf. A long-period (14-second) 1ft southeast groundswell on Tuesday the 18th morning looks and sounds better on paper than it is – the combined energy is only 64, and the waves will be fat and inconsistent. We get a bit of a pulse on Thursday the 27th and Friday the 28th, over a week and a half out. The swell jumps to 7ft from the ENE, with a combined energy of 360, but it's very short period (6-7 seconds) and has a 9 mph cross-on wind. For a beginner, 7ft is a handful, and for a sandbar like Castles, that short-period ENE swell will be close-outs. This setup looks more interesting for kite surfing than paddle surfing.
In a nutshell, there's a solid 10 to 12-day stretch of gutless, small, or onshore junk coming up. The one standout – and I'm being generous – is Monday morning the 17th if you're desperate for a paddle.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 31°C on Thu afternoon, min 23°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 41mm), heaviest during Sun night. Warm (max 30°C on Mon afternoon, min 22°C on Sun morning). Winds decreasing (fresh winds from the S on Sun afternoon, light winds from the SW by Tue night). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | ESE 8 | ESE 8 | ESE 9 | SE 9 | ESE 9 | ESE 9 | NE 4 | ENE 5 | NE 5 | S 4 | S 6 | S 7 | S 7 | S 7 | S 6 | SE 14 | SE 13 | SE 12 | SE 11 | SE 10 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 7 | 7 | 22 | 9 | 8 | 27 | 20 | 10 | 23 | 158 | 211 | 81 | 60 | 20 | 30 | 84 | 87 | 94 | 61 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross-on | cross-on | on | cross-on | cross-off | off | off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 2:14PM1.18m | 2:27AM0.92m | |||||||
Low Tide | 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 | 7:50AM0.22m | 8:43PM0.30m | ||||||||
 |  |  | | | |  | | |  |  |  | | |  | | | | | | | |
 | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — |
mm | 1 | — | — | — | — | — | — | — | — | 11 | 2 | 28 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 31 | 29 | 26 | 28 | 27 | 23 | 23 | 24 | 22 | 25 | 24 | 26 | 30 | 27 | 24 | 24 | 24 | 25 | 26 | 25 |
Feels °C | 27 | 30 | 28 | 26 | 26 | 26 | 21 | 21 | 23 | 21 | 24 | 25 | 26 | 28 | 27 | 23 | 23 | 25 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 9 | SE 9 | ESE 9 | ESE 9 | SSE 6 | S 6 | NE 5 | NE 4 | SE 9 | S 7 | S 7 | S 7 | S 6 | SSE 6 | SE 13 | SE 12 | SE 11 | SE 10 | SE 9 |
| kJ | 7 | 7 | 7 | 22 | 9 | 8 | 6 | 10 | 5 | 1 | 12 | 211 | 81 | 60 | 20 | 13 | 84 | 87 | 94 | 61 | 29 |
Swell 2 Height (m) Direction Period (s) | S 5 | SE 10 | S 5 | SE 13 | S 5 | S 6 | ESE 9 | ESE 9 | ESE 9 | ENE 4 | — | — | — | NNE 4 | SE 9 | SE 9 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | — |
| kJ | 2 | 4 | 2 | 7 | 1 | 2 | 8 | 8 | 8 | 2 | — | — | — | 2 | 12 | 13 | 13 | 12 | 6 | 3 | — |
Swell 3 Height (m) Direction Period (s) | SE 11 | S 5 | — | E 7 | — | E 13 | E 12 | E 12 | — | — | — | — | — | — | — | SE 14 | — | ENE 4 | — | — | — |
| kJ | 4 | 1 | — | 1 | — | 3 | 3 | 3 | — | — | — | — | — | — | — | 30 | — | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | WSW 4 | W 3 | — | — | NE 4 | NE 4 | ENE 5 | SSE 5 | S 4 | S 6 | — | N 4 | W 4 | N 3 | NE 4 | NE 4 | — | E 4 | ESE 3 | S 3 |
| kJ | 4 | 8 | 1 | — | — | 28 | 27 | 20 | 10 | 23 | 158 | — | 9 | 9 | 2 | 8 | 6 | — | 1 | 1 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3211 | 2441 | 944 | 1070 | 3277 | 565 | 2371 | 2363 | 1397 | 1439 | 1455 | 16 | 0 | 32 | 161 | 163 | 936 | 62 | 312 | 676 | 434 |
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.
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