Surf Forecasts:
Rehoboth Main surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 8PM (local time) - 1.5ft (0.5m), 6s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 5AM (local time) - 1.5ft (0.5m), 10s period, SE swell with 53 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 8PM (local time) - 1.5ft (0.5m), 6s period with SE swell.
Best Forecast Surf Conditions for Rehoboth Main this week:
The surf forecast for Rehoboth Main over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 8PM. The primary swell is predicted to be 0.5m and 6s period with a secondary swell of 0.2m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rehoboth Main in the next 16 days are 0.5m 10s and forecast to arrive on Wednesday (Aug 19) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 18th Aug) | 1.5ft (0.5m) 6s |
| Best Surf | 8PM (Tue 18th Aug) | 1.5ft (0.5m) 6s |
| Most Powerful | 5AM (Wed 19th Aug) | 1.5ft (0.5m) 10s |
Table - best surf conditions forecast for Rehoboth Main over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s on offer for the Rehoboth-Main area over the next couple of weeks.
Right off the bat, I gotta be straight with you – for the first week and a half, we’re looking at a whole lot of nothing. There’s a long, boring stretch from Monday the 17th all the way through to Thursday the 27th of August where the surf is just poor. Tiny waves, messy winds, the whole deal. You’re better off doing something else. Don’t bother paddling out.
Now, things get a little more interesting around Friday the 28th of August. There’s a bump of energy coming in. We’ve got a weak combo of swells pushing the combined energy up to a moderate 131. The swell will be around 4 ft but it’s coming from the ENE with a short period of only 5 seconds. That’s going to be a bit mushy and lack punch. The morning looks clean with a light cross-offshore breeze from the NNW, so it’ll be ridable, but it’s not going to be a standout session. The afternoon gets messy again.
The best we see in this whole 16-day window is on Saturday the 29th of August. The afternoon is the pick. The swell drops back to 3 ft from the SE, with a period of 10 seconds – that’s a solid medium-period groundswell that’ll give you some decent shape. The combined energy is a moderate 201. Winds go glassy, absolutely flat calm from the north. That means clean, smooth faces. This is your window. For a beginner spot like Rehoboth Main, this is about as good as it gets. It’s not big, but it’ll be clean and fun. The water temperature is about average for this time of year, so don’t expect any surprises there. Just be aware that this break is always crowded, so you’ll have plenty of company.
After that little peak, it fades back into small, poor conditions from Sunday the 30th onwards. Nothing else in the second week is worth getting excited about.
So, your one true standout is the afternoon of Saturday the 29th of August. Mark it in your calendar. Everything else is a washout.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon night. Warm (max 29°C on Mon afternoon, min 24°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 38mm), heaviest during Thu afternoon. Warm (max 28°C on Thu night, min 20°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | SSE 5 | SSE 6 | SE 6 | SE 7 | SE 7 | SE 11 | SE 10 | SE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | E 4 | ENE 5 | SSE 6 | SSE 6 | ESE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 26 | 12 | 20 | 23 | 21 | 18 | 34 | 30 | 8 | 7 | 14 | 15 | 7 | 16 | 15 | 14 | 8 | 7 | 14 | 10 | 14 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | off | glassy | cross | cross-off | cross | glassy | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | glassy | cross-off | off | cross-off |
High Tide | 11:51AM1.32m | 00:08AM1.13m | 12:39PM1.28m | 00:54AM1.02m | 1:30PM1.23m | 1:45AM0.93m | 2:27PM1.20m | 2:41AM0.87m | 3:29PM1.20m | 3:43AM0.87m | 4:29PM1.22m | 4:42AM0.90m | 5:24PM1.27m | ||||||||
Low Tide | 6:08PM0.15m | 6:16AM0.13m | 7:02PM0.26m | 7:01AM0.21m | 7:59PM0.35m | 7:49AM0.28m | 8:59PM0.42m | 8:41AM0.32m | 10:01PM0.45m | 9:36AM0.33m | 11:01PM0.45m | 10:33AM0.31m | 11:53PM0.41m | ||||||||
 |  |  | | |  | |  |  |  | | | |  | | | | | | |  | |
 | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — |
 | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | 4 | — | — | — | — | 1 | 2 | 6 | 13 | 3 | — | 2 | 7 | 3 | 2 | 2 | 1 | 1 | — |
Temp °C | 27 | 29 | 29 | 25 | 29 | 28 | 26 | 27 | 27 | 24 | 25 | 28 | 23 | 20 | 22 | 23 | 25 | 24 | 25 | 30 | 28 |
Feels °C | 29 | 32 | 33 | 26 | 30 | 28 | 29 | 28 | 28 | 28 | 29 | 31 | 22 | 18 | 23 | 25 | 28 | 27 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | SSE 6 | SE 6 | SE 7 | SE 7 | SE 6 | SE 10 | SE 9 | ESE 9 | SSE 5 | ESE 8 | SSE 4 | SSE 5 | ESE 9 | ESE 9 | ESE 8 | E 4 | ENE 5 | SSE 6 | SSE 6 | SSE 6 |
| kJ | 26 | 12 | 20 | 23 | 21 | 10 | 34 | 30 | 8 | 5 | 14 | 5 | 4 | 16 | 15 | 14 | 8 | 7 | 14 | 10 | 7 |
Swell 2 Height (m) Direction Period (s) | ESE 4 | ESE 4 | SE 10 | SE 13 | SE 12 | SE 11 | — | — | SSE 6 | ESE 8 | SSE 5 | ESE 9 | ESE 9 | SSE 5 | SSE 5 | SSE 5 | ESE 8 | SSE 4 | ENE 5 | ENE 4 | ESE 12 |
| kJ | 2 | 2 | 4 | 6 | 5 | 18 | — | — | 3 | 7 | 2 | 15 | 7 | 4 | 2 | 2 | 6 | 2 | 2 | 2 | 14 |
Swell 3 Height (m) Direction Period (s) | — | SE 9 | — | — | — | — | — | — | — | S 3 | E 7 | E 6 | E 7 | E 15 | E 14 | ESE 4 | SSE 5 | ESE 8 | E 8 | E 7 | E 7 |
| kJ | — | 3 | — | — | — | — | — | — | — | 1 | 3 | 3 | 1 | 4 | 4 | 1 | 2 | 6 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSE 3 | — | — | — | NNE 2 | ENE 4 | ENE 3 | ENE 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | 5 | 2 | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 100 | 65 | 131 | 379 | 11 | 11 | 347 | 347 | 560 | 1486 | 216 | 322 | 125 | 322 | 55 | 55 | 92 | 35 | 11 | 131 |
Best forecast wave conditions in Delaware | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Rehoboth Main Surf forecast
The above surf forecast table for Rehoboth Main provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rehoboth Main can be found by selecting the local surf guide option on the grey menu. Our Rehoboth Main 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 (Rehoboth Main) 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 Rehoboth Main 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.
Rehoboth Main is 41 km (25 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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