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Surf Forecasts:
Mona Vale-The Basin surfForecast / NSW – Sydney North Coast / Australia
48hr Weather and Surf, issued 10 am Monday 15 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Mona Vale-The Basin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mona Vale-The Basin sea temperature is
22.3° C
(Which is slightly warmer than usual)How big are the waves at Mona Vale-The Basin today?
The current surf forecast for Mona Vale-The Basin at 4PM is: 0.8m 7s primary swell from a East-northeast direction and 0.7m 7s secondary swell from a East-northeast direction (forecast issued at 10:00am December 15). An open ocean swell of 1.7m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 2.5ft (0.8m) | 7s |
| Afternoon (15 Dec) | 2.5ft (0.8m) | 7s |
| Evening (15 Dec) | 2ft (0.6m) | 7s |
Table - waves today at Mona Vale-The Basin. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 4 | 8 | 8 | 8 | 4 | 5 | 5 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 73 | 73 | 73 | 55 | 38 | 36 | 35 | 34 | 68 | 54 | 54 | 41 | 40 | 41 | 18 | 72 | 70 | 75 | 28 | 62 | 92 | 136 | 115 | 83 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 5:53AM 1.34 | 6:02PM 0.98 | 6:32AM 1.41 | 6:54PM 0.98 | 7:10AM 1.46 | 7:42PM 0.98 | ||||||||||||||||||
Low Tide / height (m) | 12:28PM 0.45 | 11:48PM 0.38 | 1:16PM 0.38 | 12:28AM 0.39 | 1:58PM 0.31 | 1:08AM 0.39 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - | - |
 | | |  | |  |  | | | | | | |  | | | | | |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 21 | 21 | 21 | 19 | 19 | 18 | 18 |
| Feels °C (?) | 19 | 19 | 18 | 16 | 15 | 16 | 15 | 15 | 17 | 17 | 17 | 17 | 17 | 17 | 19 | 20 | 20 | 19 | 19 | 18 | 16 | 18 | 18 | 18 |
- Map Icons:
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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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