Surf Forecasts:
Rehoboth Main surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 5PM (local time) - 2ft (0.6m), 7s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 22 Sep, 8PM (local time) - 3.5ft (1.1m), 7s period, E swell with 124 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 5PM (local time) - 2ft (0.6m), 7s period with E 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 (Sep 20) at 5PM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.2m and 11s. Another secondary swell of 0.7m and 4s 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 1.1m 7s and forecast to arrive on Tuesday (Sep 22) 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 4s period and expected on Friday (Sep 18) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 20th Sep) | 2ft (0.6m) 7s |
| Best Surf | 5PM (Sun 20th Sep) | 2ft (0.6m) 7s |
| Most Powerful | 8PM (Tue 22nd Sep) | 3.5ft (1.1m) 7s |
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. This upcoming stretch for the region is a tough one to call. The truth is, for the next 16 days, we're looking at a real struggle to find anything properly rideable. The energy just isn't coming together with the right wind. There's a long, barren gap ahead.
First Surf – Tuesday 15th September
We start off flat and frustrating. On Tuesday afternoon, there’s a tiny 2ft east swell, but it’s onshore and weak, with a combined energy of only 25. It’s a no-go.
Wednesday 16th – Saturday 20th September
This whole stretch is a write-off. Swell heights hover between 0.3ft and 2ft, and the wind is all wrong – cross-on, onshore, or too strong. Even on Saturday morning the 19th, when the swell nudges up to 2ft from the east-northeast, the onshore breeze kills it. The combined energy never gets past a weak 81 during this time. You’d be wasting your time.
Sunday 21st – Monday 22nd September
A minor spark. By Sunday afternoon the 20th, with a small 2ft east swell and a light cross-offshore breeze from the west-southwest, the conditions finally clean up. It’s surfable but very ordinary, with a combined energy of 65. Then Monday morning the 21st drops back to a paltry 1.0ft.
Tuesday 23rd – Thursday 25th September
We see a bit more push in the water. Swell builds to around 3ft to 5ft from the east, and the combined energy jumps to a moderate 102–155. These are the biggest waves of the whole period. But here’s the kicker – it’s accompanied by moderate to fresh cross-onshore winds, making it choppy and lumpy. The water is a notable much warmer than normal at 76°, but that’s cold comfort when the surf is blown out.
Friday 26th – Saturday 27th September
The swell drops back to 2ft-3ft, and the wind stays messy. Another series of poor surf conditions.
Sunday 28th – Monday 29th September
A final glimmer. Sunday afternoon the 27th offers a clean 2ft east swell with a cross-offshore breeze, but it’s tiny. Then on Monday the 29th, a bigger push arrives: a 3ft east-southeast groundswell with a period of 10 seconds and a cross-offshore wind. The combined energy hits a moderate 131 and the surf looks clean. This is likely the best on offer for the whole window. It’s not a classic, but if you’re desperate and can handle a clean, waist-high wave, this is your moment.
The rest of the week is more of the same – small, onshore, or messy. Honestly, this is a period to leave the board in the car and watch the horizon. The setup looks more interesting for kite-surfing than paddle-surfing when the onshore wind is up and the swell is over 3ft.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu afternoon, min 18°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Sun afternoon. Warm (max 26°C on Fri afternoon, min 19°C on Mon morning). Winds decreasing (fresh winds from the SSE on Sat night, calm by Sun night). | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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) | E 5 | E 6 | E 5 | ESE 9 | E 5 | E 8 | SSE 4 | S 4 | E 7 | ESE 12 | ESE 12 | ENE 4 | E 6 | E 7 | E 7 | E 7 | ESE 7 | ESE 6 | ESE 8 | ENE 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 13 | 15 | 8 | 8 | 7 | 7 | 10 | 15 | 8 | 14 | 13 | 16 | 18 | 77 | 45 | 34 | 16 | 14 | 26 | 46 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross | cross-off | cross-off | cross | cross | on | on |
High Tide | 11:33PM1.09m | 12:01PM1.34m | 00:17AM1.01m | 12:50PM1.28m | 1:06AM0.94m | 1:45PM1.23m | 2:03AM0.90m | 2:47PM1.21m | 3:05AM0.90m | 3:50PM1.22m | 4:07AM0.94m | 4:46PM1.26m | ||||||||
Low Tide | 5:36PM0.21m | 5:31AM0.21m | 6:26PM0.32m | 6:17AM0.29m | 7:20PM0.42m | 7:06AM0.36m | 8:17PM0.48m | 8:01AM0.40m | 9:17PM0.52m | 9:00AM0.41m | 10:14PM0.50m | 9:58AM0.38m | 11:04PM0.45m | |||||||
 |  | | | | | | | | | |  |  |  |  |  |  | | | | |
 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — |
 | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 5 | 9 | — | — | — |
Temp °C | 20 | 19 | 19 | 21 | 21 | 23 | 25 | 23 | 24 | 26 | 24 | 22 | 22 | 22 | 23 | 25 | 24 | 20 | 22 | 22 |
Feels °C | 18 | 17 | 19 | 19 | 19 | 22 | 22 | 20 | 25 | 26 | 25 | 21 | 20 | 19 | 22 | 26 | 27 | 22 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | E 5 | E 6 | E 5 | E 5 | E 5 | E 5 | E 7 | E 7 | SSE 4 | E 7 | E 7 | ESE 12 | ENE 5 | E 7 | E 7 | E 7 | ESE 7 | ESE 6 | ESE 8 | ESE 8 |
| kJ | 13 | 15 | 8 | 5 | 5 | 5 | 10 | 9 | 3 | 8 | 4 | 13 | 11 | 77 | 45 | 34 | 16 | 11 | 26 | 12 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SE 9 | ESE 9 | ESE 9 | SE 9 | E 8 | SE 12 | SE 13 | E 7 | S 4 | ESE 12 | E 7 | ESE 12 | SE 11 | SE 11 | ESE 11 | S 4 | SSE 4 | S 4 | SE 10 |
| kJ | 8 | 3 | 8 | 8 | 3 | 4 | 6 | 6 | 8 | 1 | 13 | 4 | 13 | 5 | 5 | 11 | 5 | 4 | 1 | 4 |
Swell 3 Height (m) Direction Period (s) | E 15 | E 14 | SE 14 | SE 13 | SE 13 | SE 13 | SE 9 | SE 9 | SE 12 | ESE 12 | — | — | SE 9 | — | — | — | SE 5 | ESE 8 | ESE 10 | ESE 10 |
| kJ | 4 | 4 | 7 | 7 | 7 | 7 | 3 | 3 | 6 | 14 | — | — | 3 | — | — | — | 3 | 14 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 2 | S 2 | — | SSE 4 | S 4 | — | ENE 2 | NE 4 | ENE 4 | E 6 | SSE 4 | S 4 | S 4 | — | — | NE 4 | ENE 5 |
| kJ | — | — | — | 1 | 1 | — | 10 | 15 | — | 1 | 2 | 16 | 18 | 16 | 31 | 20 | — | — | 8 | 46 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3118 | 602 | 480 | 1167 | 470 | 295 | 582 | 268 | 322 | 356 | 390 | 530 | 261 | 470 | 209 | 0 | 27 | 27 | 31 | 112 |
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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