Surf Forecasts:
120th Street surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.4m), 11s period, SE swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 5AM (local time) - 4ft (1.2m), 6s period, S swell with 86 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.4m), 11s period with SE swell.
Best Forecast Surf Conditions for 120th Street this week:
The surf forecast for 120th Street over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.4m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at 120th Street in the next 16 days are 1.2m 6s and forecast to arrive on Monday (Aug 17) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 18th Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 11PM (Tue 18th Aug) | 1.5ft (0.4m) 11s |
| Most Powerful | 5AM (Mon 17th Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for 120th Street over the next 16 days.
The Lowdown
Alright, Rusty here. Let me give it to you straight for 120th Street. Looking at this whole 16-day window, it's a tough one. The swell is weak and the periods are short for most of it. On the 16th of August, we're looking at a combined energy of just 34, with a 1.0m swell from the SSE but only 4 seconds of period – total junk. The wind is a southerly at 19 mph, making it a lumpy cross-shore mess. Water temp is a touch warmer than normal at 79°, but that's hardly a consolation.
The only real window to bother with starts Monday the 17th. The morning has a light westerly offshore breeze at 9 mph, and the swell is small, 0.7m from the south, with a combined energy of 34 again. It's clean, but it's tiny. Monday afternoon gets even better: a glassy 0.5m from the SSE with the wind dropping to a light 3 mph out of the northeast. That's your best chance for a clean but very small longboard session.
Then, from the 19th all the way through the 26th of August, it's practically flat. Swell drops to 0.2m to 0.6m, the wind is generally onshore or cross-shore, and the combined energy is almost always below 50. There is no surf to recommend.
The only other flicker is on the 27th of August, Thursday afternoon. We finally see a combined energy of 125 – moderate, at least compared to the rest. It's a 0.5m swell from the SE with a longer period of 11 seconds, giving it a bit more punch. The wind is a light northerly at 6 mph, which is cross-offshore and clean. The report calls it "surfable waves but very ordinary conditions." This is the only time in the outlook that scores a 1 out of 10. It's not good, but it's the only time you might actually stand up.
After that, it's back to small, weak, and choppy through the end of the month. There's nothing over 1.5m anywhere, so it's never too big for anyone, but it's also rarely worth paddling out. Keep your board in the car, but don't get your hopes up. Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Warm (max 30°C on Mon afternoon, min 23°C on Tue morning). Winds decreasing (fresh winds from the SSE on Sun night, calm by Wed morning). | Days 5-7 Weather SummaryHeavy rain (total 40mm), heaviest during Thu afternoon. Warm (max 28°C on Wed afternoon, min 20°C on Thu afternoon). Winds increasing (light winds from the WSW on Wed night, strong winds from the NE by Fri night). | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 4 | S 5 | S 6 | SSE 6 | SSE 6 | SE 6 | SSE 6 | SE 11 | SE 10 | SE 9 | SE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | NE 4 | NE 5 | ENE 6 | ENE 6 | E 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 34 | 66 | 32 | 18 | 22 | 21 | 26 | 56 | 34 | 30 | 20 | 7 | 7 | 15 | 15 | 15 | 26 | 27 | 26 | 20 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | glassy | off | cross | glassy | cross-off | glassy | cross | cross-off | cross | cross-on | cross-on | on | on | cross-on | cross | cross | cross-off |
High Tide | 11:22PM1.23m | 11:59AM1.29m | 00:11AM1.13m | 12:46PM1.24m | 1:00AM1.04m | 1:34PM1.19m | 1:50AM0.97m | 2:22PM1.16m | 2:43AM0.92m | 3:14PM1.14m | 3:41AM0.90m | 4:11PM1.14m | 4:42AM0.92m | |||||||
Low Tide | 5:15PM0.05m | 5:33AM0.01m | 6:02PM0.13m | 6:13AM0.11m | 6:52PM0.21m | 6:57AM0.20m | 7:51PM0.27m | 7:50AM0.27m | 8:55PM0.30m | 8:52AM0.30m | 9:57PM0.29m | 9:53AM0.30m | 10:51PM0.26m | |||||||
 |  |  | |  | | |  | | | |  |  |  |  |  |  |  | | | |
 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — |
mm | — | 6 | — | — | 9 | — | — | — | — | — | — | 3 | 11 | — | 5 | 7 | 14 | — | — | — |
Temp °C | 25 | 25 | 28 | 30 | 24 | 25 | 27 | 27 | 27 | 28 | 27 | 26 | 21 | 23 | 24 | 21 | 20 | 21 | 22 | 22 |
Feels °C | 22 | 21 | 30 | 33 | 23 | 27 | 29 | 29 | 29 | 28 | 27 | 29 | 19 | 24 | 22 | 17 | 17 | 21 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | — | SE 9 | S 6 | SSE 6 | SSE 6 | SE 6 | SSE 6 | SE 11 | SE 10 | SE 9 | SE 9 | SSE 5 | ESE 8 | SSE 4 | E 4 | ESE 9 | ESE 9 | SSE 6 | ENE 6 | E 6 |
| kJ | — | 3 | 32 | 18 | 22 | 21 | 26 | 56 | 34 | 30 | 20 | 3 | 7 | 9 | 8 | 15 | 15 | 6 | 26 | 20 |
Swell 2 Height (m) Direction Period (s) | — | — | ESE 4 | E 5 | — | SE 12 | ESE 12 | S 6 | — | — | SSE 5 | ESE 8 | E 6 | ESE 9 | SSE 4 | SSE 4 | SSE 5 | ESE 9 | SSE 6 | ESE 13 |
| kJ | — | — | 2 | 2 | — | 6 | 14 | 18 | — | — | 2 | 7 | 1 | 15 | 3 | 2 | 2 | 7 | 3 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 9 | — | — | — | S 6 | — | — | — | E 6 | — | E 16 | ESE 9 | E 15 | E 14 | SE 13 | ESE 8 | SE 9 |
| kJ | — | — | — | 3 | — | — | — | 1 | — | — | — | 1 | — | 5 | 15 | 4 | 4 | 7 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | SSE 4 | S 5 | — | — | — | — | — | — | NNW 3 | — | S 3 | — | SSE 5 | — | — | NE 4 | NE 5 | ENE 6 | — | SE 6 |
| kJ | 34 | 66 | — | — | — | — | — | — | 1 | — | 1 | — | 5 | — | — | 13 | 26 | 27 | — | 8 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2572 | 201 | 5 | 56 | 156 | 156 | 4 | 0 | 25 | 160 | 156 | 579 | 344 | 579 | 654 | 1107 | 281 | 70 | 285 | 4 |
Best forecast wave conditions in Maryland | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the 120th Street Surf forecast
The above surf forecast table for 120th Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 120th Street can be found by selecting the local surf guide option on the grey menu. Our 120th Street 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 (120th Street) 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 120th Street 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.
120th Street is 11 km (7 miles) from Ocean City. If you plan a vacation in Maryland, 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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