Surf Forecasts:
Bethany surf forecast from 18 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.5m), 11s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.5m), 11s period, SE swell with 58 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.5m), 11s period with SE swell.
Best Forecast Surf Conditions for Bethany this week:
The surf forecast for Bethany over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 0.5m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bethany in the next 16 days are 0.5m 11s and forecast to arrive on Tuesday (Aug 18) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Sunday (Aug 23) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 18th Aug) | 1.5ft (0.5m) 11s |
| Best Surf | 11PM (Tue 18th Aug) | 1.5ft (0.5m) 11s |
| Most Powerful | 11PM (Tue 18th Aug) | 1.5ft (0.5m) 11s |
Table - best surf conditions forecast for Bethany over the next 16 days.
The Lowdown
Alright, grab your wettie, because it’s looking like a bit of a flat spell here for a while.
The next week and a half is going to be a test of patience. From Tuesday the 18th all the way through to the end of the month, there’s just nothing doing. The swell is tiny, the energy is weak – we’re looking at combined energies in the 15 to 153 range, which is just nothing to get excited about. It’s mostly poor-surf conditions with a cross or cross-onshore breeze messing things up.
There are a few brief flashes of hope – like Thursday the 22nd and 23rd when the wind turns offshore, but the swell is just too small and weak to make it worth paddling out. You’d be fighting for scraps. The long-period energy that shows up around Wednesday the 26th and Thursday the 27th is still just too small to do anything with, even if it is clean.
The real standout, the one that you’ve been waiting for, is the final day of the month and the start of the new one. Monday the 31st is where it’s at. We finally get some proper swell – around `6ft` from the east with a light offshore wind in the morning. The energy jumps to 225, which is a solid kick in the pants. This is the cleanest, biggest surf of the whole run. Bethany (Mid-Atlantic) is a beginner-friendly beach/jetty setup, and with this size it’ll be pushing it for the faint of heart, but for anyone with a bit of experience, it’s game on. The crowd factor is a possibility, but on a day like this, you’ll be happy to share.
The afternoon gets a bit messier with a stronger cross-offshore wind, but the morning is the call. After that, things drop back down again.
Now, I know it’s a long way out, but we’re also seeing some similar energy for Monday the 31st with a period of 6 seconds. It’s a short-period swell, so it won’t have the same punch as a proper groundswell, but it’s the biggest wave height of the entire forecast.
So, there you have it. A whole lot of nothing, and then one clear window on the 31st. Don’t hold your breath, but keep an eye on that forecast.
Rusty out.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon night. Warm (max 28°C on Wed afternoon, min 24°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Thu night. Warm (max 29°C on Sun afternoon, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 9 | SE 7 | SSE 6 | SE 11 | SE 10 | SE 9 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | E 4 | E 5 | E 5 | E 6 | SSE 5 | ESE 12 | SSE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 12 | 27 | 16 | 56 | 34 | 30 | 20 | 14 | 14 | 14 | 8 | 16 | 26 | 31 | 27 | 17 | 21 | 14 | 48 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | off | cross | cross-off | cross-off | cross | cross | cross | glassy | cross-on | cross | cross | cross-off | off | off | off | off |
High Tide | 00:11AM1.13m | 12:46PM1.24m | 1:00AM1.04m | 1:34PM1.19m | 1:50AM0.97m | 2:22PM1.16m | 2:43AM0.92m | 3:14PM1.14m | 3:41AM0.90m | 4:11PM1.14m | 4:42AM0.92m | 5:07PM1.17m | |||||||
Low Tide | 6:13AM0.11m | 6:52PM0.21m | 6:57AM0.20m | 7:51PM0.27m | 7:50AM0.27m | 8:55PM0.30m | 8:52AM0.30m | 9:57PM0.29m | 9:53AM0.30m | 10:51PM0.26m | 10:48AM0.27m | 11:39PM0.20m | |||||||
 |  |  |  | | | | | | |  | |  |  | |  | | | | |
 | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 7:52 | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — | — | 7:44 | — |
mm | 4 | — | 2 | — | — | — | — | — | 1 | 7 | 3 | 1 | 4 | 2 | 1 | 6 | 5 | 1 | 2 |
Temp °C | 26 | 25 | 26 | 26 | 26 | 28 | 27 | 26 | 27 | 25 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 29 | 28 |
Feels °C | 29 | 27 | 28 | 29 | 26 | 29 | 27 | 30 | 29 | 29 | 27 | 26 | 26 | 27 | 25 | 27 | 26 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | SE 7 | SSE 6 | SE 11 | SE 10 | SE 9 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | SSE 4 | SSE 5 | ESE 8 | E 5 | E 6 | SSE 5 | ENE 6 | SSE 6 |
| kJ | 5 | 27 | 16 | 56 | 34 | 30 | 20 | 14 | 14 | 14 | 8 | 4 | 5 | 14 | 27 | 15 | 21 | 6 | 48 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 12 | ESE 9 | ENE 3 | NE 4 | NE 4 | — | S 5 | E 7 | E 16 | S 4 | ESE 9 | E 14 | SE 13 | ESE 8 | ESE 8 | ENE 6 | ESE 12 | ENE 6 |
| kJ | 12 | 6 | 7 | 1 | 1 | 1 | — | 2 | 3 | 5 | 1 | 16 | 4 | 7 | 7 | 12 | 11 | 14 | 3 |
Swell 3 Height (m) Direction Period (s) | E 4 | SE 12 | ESE 12 | — | NE 4 | NE 4 | — | SE 5 | — | E 8 | E 7 | E 7 | SE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | E 8 | ESE 12 |
| kJ | 1 | 6 | 14 | — | 1 | 1 | — | 1 | — | 1 | 4 | 1 | 8 | 18 | 17 | 17 | 16 | 1 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 3 | SE 4 | ESE 4 | ENE 3 | E 4 | E 5 | SSE 5 | SSE 5 | S 6 | SSE 6 | — |
| kJ | — | — | — | — | — | — | — | — | 2 | 7 | 6 | 7 | 26 | 31 | 2 | 4 | 60 | 54 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 276 | 35 | 334 | 0 | 35 | 334 | 147 | 369 | 2429 | 597 | 147 | 1080 | 370 | 48 | 0 | 0 | 0 | 6 | 0 |
Best forecast wave conditions in Delaware | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Bethany Surf forecast
The above surf forecast table for Bethany provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bethany can be found by selecting the local surf guide option on the grey menu. Our Bethany 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 (Bethany) 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 Bethany 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.
Bethany is 20 km (12 miles) from Ocean City. If you plan a vacation in Delaware, look for hotels and other accommodation in Ocean City. Ocean City has rooms for a wide range of budgets as well as car hire and transport links.
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