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Surf Forecasts:
48th Street surfForecast / Maryland / USA
48hr Weather and Surf, issued 1 pm Thursday 21 May 2026 EDTForecast update in hr min s Forecast update imminent
48th Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 48th Street sea temperature is
16.1° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at 48th Street today?
The current surf forecast for 48th Street at 8PM is: 0.6m 8s primary swell from a Southeast direction and 0.1m 14s secondary swell from a Southeast direction, 1.0m 5s secondary swell from a Northeast direction (forecast issued at 01:00pm May 21). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 1.5ft (0.5m) | 9s |
| Afternoon (21 May) | 1.5ft (0.5m) | 9s |
| Evening (21 May) | 3.5ft (1.1m) | 5s |
Table - waves today at 48th Street. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Sat night. Very mild (max 18°C on Sat night, min 11°C on Fri afternoon). Winds decreasing (strong winds from the ENE on Fri morning, light winds from the WNW by Sun morning). | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 9 | SE 9 | SE 9 | NE 5 | NE 5 | NE 5 | NE 5 | ENE 6 | ENE 6 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 9 | E 9 | E 9 | |
30 | 38 | 37 | 57 | 55 | 54 | 94 | 200 | 310 | 427 | 522 | 538 | 465 | 477 | 486 | 429 | 431 | 389 | 431 | 535 | 703 | 766 | 642 | 528 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-off | |
High Tide | 12:32PM1.17m | 00:43AM1.32m | 1:31PM1.17m | 1:42AM1.24m | 2:28PM1.18m | 2:38AM1.18m | ||||||||||||||||||
Low Tide | 6:21PM0.12m | 7:16AM0.02m | 7:27PM0.18m | 8:18AM0.06m | 8:37PM0.21m | |||||||||||||||||||
 |  | |  |  | | | | |  | | |  | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — |
 | — | — | — | 8:08 | — | — | — | — | — | — | — | 8:09 | — | — | — | — | — | — | — | 8:10 | — | — | — | 8:10 |
1 | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 1 | 1 | — | 1 | 2 | 1 | — | 1 | 1 | 4 | 2 | — | |
Temp °C | 17 | 16 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 17 | 18 | 18 |
13 | 11 | 10 | 8 | 9 | 7 | 5 | 4 | 4 | 3 | 4 | 5 | 5 | 5 | 7 | 8 | 7 | 6 | 6 | 9 | 11 | 15 | 18 | 19 | |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SSE 6 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 7 | SSE 7 | SSE 7 | SE 13 | SE 13 | SE 13 | SE 13 | SSE 6 | SE 13 | SE 13 | SE 13 | — | — | — | — | E 9 | E 9 |
 kJ | 25 | 19 | 37 | 57 | 55 | 54 | 38 | 15 | 15 | 15 | 7 | 7 | 7 | 7 | 13 | 7 | 7 | 7 | — | — | — | — | 642 | 528 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SE 9 | SSE 6 | SE 14 | SE 14 | SE 13 | SE 13 | SE 14 | SE 13 | SE 13 | — | — | — | SE 13 | SE 13 | — | — | — | — | — | — | — | — | — |
| kJ | 30 | 38 | 13 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | — | — | — | 7 | 7 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 14 | SE 14 | — | — | SE 14 | — | SE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 8 | 8 | 8 | — | — | 7 | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 4 | NE 4 | NE 5 | NE 5 | NE 5 | NE 5 | ENE 6 | ENE 6 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 9 | — | SSE 5 |
| kJ | 5 | 13 | 19 | 41 | 53 | 51 | 94 | 200 | 310 | 427 | 522 | 538 | 465 | 477 | 486 | 429 | 431 | 389 | 431 | 535 | 703 | 766 | — | 40 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 269 | 269 | 273 | 285 | 234 | 265 | 316 | 283 | 312 | 355 | 2352 | 2352 | 358 | 234 | 196 | 166 | 166 | 672 | 672 | 166 | 234 | 166 | 59 | 0 |
Best forecast wave conditions in Maryland | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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