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21st Street (Miami) Surf Forecast
/ Florida – South (39 breaks) / Florida (155 breaks) /
Surf Forecasts:
21st Street (Miami) surfForecast / Florida – South / USA
12 Day Weather and Surf, issued 12 am Saturday 03 Jan 2026 ESTForecast update in hr min s Forecast update imminent
21st Street (Miami) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 21st Street (Miami) sea temperature is
24.1° C
(Which is normal for this time of year)Best Forecast Surf Conditions for 21st Street (Miami) this week:
The surf forecast for 21st Street (Miami) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jan 06) at 1AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at 21st Street (Miami) in the next 12 days are 0.9m 8s and forecast to arrive on Monday (Jan 05) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Jan 03) at 7PM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 6th Jan) | 2.5ft (0.8m) 8s |
| Best Surf | 1AM (Tue 6th Jan) | 2.5ft (0.8m) 8s |
| Most Powerful | 10PM (Mon 5th Jan) | 3ft (0.9m) 8s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Some drizzle, heaviest during Mon morning. Warm (max 24°C on Sun morning, min 17°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Mon night, min 21°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Fri 09 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 5 | 12 | 12 | 12 | 12 | 12 | 11 | 7 | 7 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 13 | 13 | 12 | 4 | 5 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 8 | 15 | 15 | 14 | 5 | 5 | 5 | 5 | 36 | 75 | 51 | 53 | 36 | 20 | 12 | 6 | 17 | 16 | 14 | 25 | 39 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross | cross- off | cross- off | cross- off | glass | glass | cross- on | cross- off | glass | cross- on | glass | cross | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | |
High Tide / height (m) | 7:55AM 0.93 | 8:02PM 0.86 | 8:45AM 0.93 | 8:56PM 0.86 | 9:34AM 0.91 | 9:48PM 0.84 | 10:21AM 0.87 | 10:41PM 0.80 | 11:08AM 0.83 | 11:33PM 0.76 | 11:55AM 0.77 | 12:27AM 0.72 | 12:42PM 0.72 | |||||||||
Low Tide / height (m) | 1:27AM -0.19 | 2:03PM -0.03 | 2:20AM -0.19 | 2:55PM -0.05 | 3:12AM -0.16 | 3:45PM -0.05 | 4:02AM -0.12 | 4:34PM -0.05 | 4:52AM -0.06 | 5:23PM -0.03 | 5:42AM 0.00 | 6:13PM -0.01 | 6:32AM 0.06 | |||||||||
Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Fri 09 | ||||||||||||||||
| Sunrise | - | 7:07 | - | - | 7:07 | - | - | 7:07 | - | - | 7:07 | - | - | 7:07 | - | - | 7:07 | - | - | 7:07 | - | |
| Sunset | - | - | 5:42 | - | - | 5:42 | - | - | 5:43 | - | - | 5:44 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | |
 |  | | |  | | |  | | | | | | | | | | | | | | ||
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 18 | 19 | 20 | 19 | 24 | 24 | 22 | 23 | 23 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | |
| Feels °C (?) | 16 | 19 | 17 | 16 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 23 | 23 | 24 | 23 | 23 | 22 | 21 | 23 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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Information about the 21st Street (Miami) Surf forecast
The above surf forecast table for 21st Street (Miami) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at 21st Street (Miami) can be found by selecting the local surf guide option on the grey menu. Our 21st Street (Miami) 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 (21st Street (Miami)) 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 21st Street (Miami) 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.
21st Street (Miami) is 1 km (1 miles) from the city of Miami Beach. If you plan a vacation in South Florida, look for hotels and other accommodation in Miami Beach. Miami Beach has rooms for a wide range of budgets as well as car hire and transport links.
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