Surf Forecasts:
Rehoboth Main surf forecast from 20 Aug 2026:
- Best quality surf: Sunday 23 Aug, 2PM (local time) - 2ft (0.6m), 6s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 5PM (local time) - 3ft (0.9m), 5s period, ENE swell with 39 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 2PM (local time) - 2ft (0.6m), 6s period with SSE 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 Sunday (Aug 23) at 2PM. The primary swell is predicted to be 0.6m and 6s period with a secondary swell of 0.2m and 7s. Another secondary swell of 0.2m and 12s is also forecast. 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 0.9m 5s and forecast to arrive on Friday (Aug 21) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Aug 23) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 23rd Aug) | 2ft (0.6m) 6s |
| Best Surf | 2PM (Sun 23rd Aug) | 2ft (0.6m) 6s |
| Most Powerful | 5PM (Fri 21st Aug) | 3ft (0.9m) 5s |
Table - best surf conditions forecast for Rehoboth Main over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you, it’s been a tough run for surf around here. We’re looking at a long dry spell for Rehoboth Main, with nothing really worth paddling out for in the first week and a half.
The problem is we’ve got almost no energy in the water. The combined swell energy is all weak, reading under 100 all the way through. For the first 12 days, the forecast is basically a string of poor surf conditions with scores of zero. August 20th through the 31st is a total washout – tiny bumps, rough wind, and a lot of cross-shore chop. Some mornings, like the 22nd and 23rd, stay clean with a light offshore breeze, but the swell is only 0.7 ft, which is just not enough to push a foam board. The water temp is about average for the time of year, nothing unusual there.
There is a glimmer of hope right at the very end of the run. On Tuesday morning, September 1st, we finally see a score of 1/10 with “surfable waves but very ordinary conditions”. The swell is still only 1 ft from the SE, period 10 seconds, but the wind goes glassy. That’s the key. Glassy conditions at Rehoboth Main make it clean, and with a combined swell energy of 87, it’s the closest we get to anything ridable. It’s still tiny, beginner stuff, but it’s the only window in the whole 16 days.
After that, the wind picks up again on the 2nd with a strong breeze from the ENE, and it gets messy all over again. The rest of the first week of September is more of the same – onshore winds and weak, choppy surf.
So, the honest truth is there’s no standout here. The only real highlight is that glassy Tuesday morning on September 1st. If you’re desperate, you could get a longboard out for a few knee-high wobbles, but don’t expect much. For the rest of the time, it’s a blank run with no swell to speak of. This area can go quiet like this, and it’s just how it goes.
Rusty.
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu night. Warm (max 28°C on Wed night, min 21°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 46mm), heaviest during Sun night. Warm (max 28°C on Sun afternoon, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 8 | SSE 4 | SSE 5 | NE 5 | ENE 5 | E 5 | ESE 8 | ESE 8 | ESE 8 | SE 6 | SSE 6 | SSE 6 | ESE 12 | SSE 6 | SE 6 | ESE 11 | ESE 11 | ESE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 20 | 18 | 21 | 8 | 22 | 39 | 13 | 14 | 6 | 12 | 16 | 28 | 14 | 14 | 13 | 12 | 11 | 11 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-on | cross-on | cross-on | off | on | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on |
High Tide | 1:45AM0.93m | 2:27PM1.20m | 2:41AM0.87m | 3:29PM1.20m | 3:43AM0.87m | 4:29PM1.22m | 4:42AM0.90m | 5:24PM1.27m | 5:34AM0.95m | 6:11PM1.33m | 6:21AM1.03m | 6:54PM1.38m | |||||||
Low Tide | 7:49AM0.28m | 8:59PM0.42m | 8:41AM0.32m | 10:01PM0.45m | 9:36AM0.33m | 11:01PM0.45m | 10:33AM0.31m | 11:53PM0.41m | 11:26AM0.26m | 00:34AM0.35m | 12:16PM0.19m | 1:11AM0.28m | |||||||
 |  |  |  |  |  | |  | | | | |  | | |  | | | | |
 | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 7:50 | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — |
mm | — | — | 1 | 24 | — | — | 3 | 7 | 4 | 7 | 3 | 7 | 29 | — | — | — | — | — | — |
Temp °C | 28 | 27 | 28 | 23 | 23 | 23 | 24 | 22 | 24 | 25 | 26 | 28 | 21 | 21 | 24 | 24 | 22 | 24 | 24 |
Feels °C | 29 | 29 | 27 | 22 | 22 | 23 | 26 | 24 | 27 | 27 | 29 | 30 | 20 | 18 | 20 | 24 | 22 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SSE 5 | SSE 5 | SSE 4 | ESE 9 | ESE 8 | SE 5 | SE 5 | SE 6 | E 7 | SSE 6 | SSE 5 | SSE 6 | SE 6 | SSE 6 | SSE 6 | SSE 6 |
| kJ | 20 | 18 | 18 | 8 | 5 | 2 | 7 | 14 | 3 | 6 | 15 | 4 | 12 | 11 | 13 | 9 | 7 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | — | SSE 5 | — | ESE 8 | ESE 9 | ESE 9 | SSE 4 | ENE 5 | ENE 5 | ESE 8 | E 8 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 |
| kJ | — | 2 | — | 7 | 7 | 8 | 2 | 2 | 2 | 12 | 5 | 14 | 14 | 14 | 13 | 12 | 11 | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 6 | E 15 | E 15 | E 14 | SE 14 | ESE 8 | SE 13 | ESE 13 | SE 8 | E 7 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 |
| kJ | — | — | — | 1 | 4 | 4 | 4 | 7 | 6 | 7 | 16 | 3 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 4 | NNE 4 | NE 5 | ENE 5 | E 5 | ESE 3 | — | — | — | SSE 6 | — | NNW 3 | NW 3 | — | — | — | — |
| kJ | — | — | 21 | 5 | 22 | 39 | 13 | 1 | — | — | — | 28 | — | 4 | 2 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 178 | 243 | 582 | 45 | 1033 | 390 | 582 | 44 | 228 | 256 | 11 | 151 | 11 | 65 | 45 | 131 | 55 | 582 | 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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