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70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
13th Ave South Surfside surfForecast / Carolina South / USA
48hr Weather and Surf, issued 12 am Friday 12 Dec 2025 ESTForecast update in hr min s Forecast update imminent
13th Ave South Surfside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 13th Ave South Surfside sea temperature is
12.6° C
(Which is 9.1°C colder than average for this time of year)How big are the waves at 13th Ave South Surfside today?
The current surf forecast for 13th Ave South Surfside at 6AM is: 0.1m 8s primary swell from a Southeast direction and 0.1m 9s secondary swell from a East direction (forecast issued at 12:00am December 12). The wind direction is predicted to be offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 0.5ft (0.1m) | 9s |
| Afternoon (12 Dec) | 0.5ft (0.1m) | 8s |
| Evening (12 Dec) | 0.5ft (0.2m) | 4s |
Table - waves today at 13th Ave South Surfside. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 8 | 9 | 10 | 10 | 8 | 7 | 10 | 10 | 10 | 4 | 4 | 8 | 8 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3 | 3 | 1 | 3 | 3 | 2 | 2 | 2 | 4 | 2 | 2 | 3 | 8 | 2 | 2 | 3 | 9 | 13 | 16 | 18 | 17 | 8 | 4 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | glass | off | glass | cross | cross | glass | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 1:30AM 1.43 | 1:42PM 1.42 | 2:25AM 1.44 | 2:34PM 1.34 | 3:15AM 1.46 | 3:21PM 1.28 | ||||||||||||||||||
Low Tide / height (m) | 7:08PM 0.16 | 7:25AM 0.23 | 8:03PM 0.18 | 8:29AM 0.27 | 8:56PM 0.18 | 9:29AM 0.26 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - |
 |  | | |  | | | | | | | | | | | | | |  | |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 7 | 6 | 7 | 11 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 16 | 17 | 16 | 16 | 15 | 15 | 15 | 14 | 8 | 6 | 1 |
| Feels °C (?) | 4 | 4 | 4 | 3 | 4 | 7 | 10 | 11 | 9 | 9 | 8 | 7 | 7 | 13 | 15 | 14 | 14 | 12 | 12 | 12 | 11 | 1 | -3 | -9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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