Surf Forecasts:
Dewey Beach surf forecast from 21 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 11PM (local time) - 2ft (0.6m), 9s period, ESE swell with 66 kJ wave energy.
Best Forecast Surf Conditions for Dewey Beach this week:
The most powerful waves expected at Dewey Beach in the next 16 days are 0.6m 9s and forecast to arrive on Thursday (Aug 27) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 24) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 27th Aug) | 2ft (0.6m) 9s |
Table - best surf conditions forecast for Dewey Beach over the next 16 days.
Short Range ForecastHeavy rain (total 48mm), heaviest during Thu night. Warm (max 27°C on Thu night, min 19°C on Thu night). Winds decreasing (fresh winds from the S on Thu night, light winds from the SSE by Sat afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 26°C on Sun night, min 20°C on Mon morning). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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 | NE 4 | NE 6 | ESE 9 | ESE 8 | NE 4 | NE 5 | SSE 4 | ESE 12 | SSE 6 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 23 | 17 | 26 | 8 | 14 | 13 | 7 | 7 | 14 | 15 | 27 | 13 | 12 | 22 | 22 | 22 | 11 | 10 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | on | on | cross | cross-off | off | off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | on | cross-on | on |
High Tide | 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 | 7:05AM1.12m | 7:34PM1.43m | |||||||
Low Tide | 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 | 1:02PM0.13m | 1:47AM0.20m | ||||||
 |  |  |  |  |  |  | | | | |  | | | | | | | | |
 | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | 7:47 | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — | — | 7:39 | — |
mm | 10 | — | — | — | 6 | 14 | 14 | — | 4 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 20 | 23 | 23 | 22 | 23 | 23 | 23 | 26 | 26 | 22 | 25 | 24 | 24 | 26 | 25 | 23 | 24 | 24 |
Feels °C | 25 | 20 | 24 | 24 | 23 | 24 | 25 | 25 | 28 | 28 | 20 | 25 | 22 | 26 | 25 | 26 | 22 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | SSE 5 | ENE 6 | ENE 6 | NE 3 | ESE 8 | NE 5 | SSE 4 | SSE 5 | SSE 6 | SE 6 | SSE 5 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SSE 5 | ESE 9 |
| kJ | 23 | 5 | 13 | 7 | 3 | 6 | 6 | 7 | 9 | 15 | 8 | 5 | 12 | 22 | 22 | 22 | 11 | 4 | 8 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 9 | SSE 5 | ESE 9 | ENE 6 | SSE 4 | ESE 8 | ESE 8 | E 7 | E 7 | ESE 12 | ESE 12 | SSE 5 | SSE 5 | SSE 6 | SSE 5 | SSE 4 | ESE 10 | SE 4 |
| kJ | 7 | 7 | 5 | 8 | 7 | 1 | 6 | 6 | 4 | 4 | 27 | 13 | 3 | 3 | 6 | 3 | 2 | 10 | 3 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 15 | ESE 9 | SSE 4 | ESE 8 | SE 13 | SE 13 | ENE 5 | ESE 12 | ESE 12 | E 7 | E 7 | E 7 | E 6 | — | E 6 | E 15 | ESE 6 | SE 6 |
| kJ | 1 | 4 | 8 | 2 | 14 | 7 | 7 | 2 | 14 | 14 | 4 | 1 | 1 | 1 | — | 1 | 4 | 4 | 1 |
Wind waves Height (m) Direction Period (s) | N 3 | NE 4 | NE 6 | — | — | NE 4 | SSE 3 | — | — | — | NNW 2 | — | — | — | — | — | — | — | — |
| kJ | 1 | 17 | 26 | — | — | 13 | 2 | — | — | — | 1 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 43 | 66 | 2598 | 240 | 293 | 65 | 53 | 193 | 53 | 66 | 53 | 66 | 193 | 133 | 1139 | 133 | 1033 | 328 | 293 |
Best forecast wave conditions in Delaware | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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