Surf Forecasts:
Dewey Beach surf forecast from 12 Aug 2026:
- Best quality surf: Monday 17 Aug, 5AM (local time) - 3ft (0.9m), 6s period, S swell with offshore winds.
- Most powerful swell: Sunday 16 Aug, 11PM (local time) - 5ft (1.5m), 6s period, S swell with 133 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 5AM (local time) - 3ft (0.9m), 6s period with S swell.
Best Forecast Surf Conditions for Dewey Beach this week:
The surf forecast for Dewey Beach 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 0.9m and 6s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Dewey Beach in the next 16 days are 1.5m 6s and forecast to arrive on Sunday (Aug 16) 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 0.6m 4s period and expected on Monday (Aug 17) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 17th Aug) | 3ft (0.9m) 6s |
| Best Surf | 5AM (Mon 17th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 11PM (Sun 16th Aug) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Dewey Beach over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 29°C on Thu morning, min 23°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sun night. Warm (max 28°C on Mon afternoon, min 19°C on Sat morning). Winds increasing (light winds from the NNW on Fri night, fresh winds from the WSW by Sun night). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 | SSE 6 | E 11 | SE 8 | E 10 | ESE 8 | ESE 9 | SSE 6 | SSE 6 | ENE 4 | SSE 6 | SSE 6 | SSE 3 | S 5 | SSE 6 | SSE 6 | SSE 6 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 3 | 3 | 3 | 3 | 3 | 3 | 7 | 8 | 6 | 3 | 13 | 8 | 15 | 5 | 61 | 95 | 32 | 15 | 13 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | cross-off | off | glassy | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | cross | off | cross-off | cross-off | cross |
High Tide | 7:49AM1.21m | 8:23PM1.59m | 8:41AM1.28m | 9:11PM1.55m | 9:31AM1.33m | 9:57PM1.47m | 10:19AM1.35m | 10:41PM1.37m | 11:05AM1.34m | 11:24PM1.25m | 11:51AM1.32m | 00:08AM1.13m | |||||||
Low Tide | 1:55AM-0.04m | 1:52PM-0.20m | 2:41AM-0.09m | 2:44PM-0.20m | 3:25AM-0.11m | 3:35PM-0.16m | 4:08AM-0.09m | 4:25PM-0.08m | 4:50AM-0.04m | 5:16PM0.03m | 5:33AM0.04m | 6:08PM0.15m | |||||||
 |  |  |  | |  | |  | |  | | |  | | |  | | | | |
 | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — |
 | 8:00 | — | 7:59 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — |
mm | 3 | 2 | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | 5 | — | — | — |
Temp °C | 27 | 25 | 27 | 26 | 29 | 29 | 29 | 26 | 25 | 26 | 21 | 22 | 22 | 23 | 27 | 25 | 24 | 28 | 27 |
Feels °C | 30 | 26 | 29 | 26 | 30 | 32 | 31 | 26 | 28 | 27 | 20 | 22 | 21 | 21 | 26 | 26 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | SSE 6 | SSE 6 | S 5 | S 3 | S 4 | SSE 4 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | ENE 4 | ENE 5 | NE 4 | — | SSE 6 | SSE 6 | SSE 6 | SSE 5 |
| kJ | 3 | 3 | 3 | 2 | 1 | 1 | 2 | 2 | 6 | 3 | 4 | 6 | 4 | 1 | — | 95 | 32 | 15 | 5 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 9 | ENE 3 | SE 9 | SE 9 | SSE 6 | SE 9 | SE 9 | NE 5 | — | — | SE 10 | SE 9 |
| kJ | 3 | 3 | 3 | 3 | 3 | 3 | 7 | 8 | 1 | 3 | 3 | 8 | 3 | 3 | 1 | — | — | 4 | 13 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | — | E 11 | S 5 | E 10 | E 13 | E 13 | SE 9 | — | — | SE 9 | — | — | — | — | — | — | NE 4 |
| kJ | 1 | 1 | — | 2 | 1 | 2 | 3 | 3 | 3 | — | — | 3 | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 3 | — | — | — | NE 3 | — | — | ENE 4 | ENE 4 | SSE 6 | SSE 3 | S 5 | WSW 4 | NNW 3 | NNE 3 | — |
| kJ | — | — | — | 1 | — | — | — | 2 | — | — | 13 | 8 | 15 | 5 | 61 | 10 | 1 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 345 | 1362 | 1110 | 1041 | 294 | 2384 | 1091 | 1191 | 345 | 469 | 629 | 3116 | 702 | 1148 | 1149 | 43 | 64 | 126 | 90 |
Best forecast wave conditions in Delaware | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dewey Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Dewey Beach Surf forecast
The above surf forecast table for Dewey Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dewey Beach can be found by selecting the local surf guide option on the grey menu. Our Dewey Beach 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 (Dewey Beach) 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 Dewey Beach 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.
Dewey Beach is 39 km (24 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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