Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Coalcliff surfForecast / NSW – Illawarra / Australia
48hr Weather and Surf, issued 10 am Monday 22 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Coalcliff surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coalcliff sea temperature is
22.7° C
(Which is slightly warmer than usual)How big are the waves at Coalcliff today?
The current surf forecast for Coalcliff at 5PM is: 1.2m 9s primary swell from a Northeast direction and 0.6m 9s secondary swell from a South direction, 1.1m 5s secondary swell from a Southeast direction (forecast issued at 10:00am December 22). The wind direction is predicted to be onshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Dec) | 5ft (1.5m) | 8s |
| Afternoon (22 Dec) | 4.5ft (1.3m) | 9s |
| Evening (22 Dec) | 5ft (1.5m) | 9s |
Table - waves today at Coalcliff. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | |||||||||||||||||||||
| 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) (?) | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 9 | 6 | 7 | 8 | 8 | 8 | 8 | 7 | 6 | 5 | 5 | 6 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 338 | 293 | 287 | 225 | 304 | 373 | 239 | 148 | 103 | 72 | 101 | 164 | 203 | 247 | 292 | 360 | 234 | 124 | 50 | 145 | 58 | 97 | 255 | 355 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | on | on | on | on | glass | glass | off | glass | cross- on | cross- on | cross- on | on | glass | off | off | cross- off | cross | cross | on | cross- on | cross- on | on |
High Tide / height (m) | 10:29AM 1.52 | 11:17PM 1.00 | 11:06AM 1.50 | 11:58PM 1.01 | 11:44AM 1.47 | 12:42AM 1.03 | ||||||||||||||||||
Low Tide / height (m) | 5:22PM 0.18 | 4:35AM 0.41 | 6:00PM 0.17 | 5:16AM 0.43 | 6:38PM 0.17 | |||||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | |||||||||||||||||||||
| Sunrise | 5:39 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 8:07 | - | - | - | - | - | - | - | 8:07 | - | - | - | - | - | - | - | 8:07 | - | - | - |
 |  | | |  |  | |  | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 27 | 29 | 21 | 20 | 19 | 19 | 18 | 20 | 27 | 27 | 22 | 19 | 19 | 18 | 17 | 20 | 26 | 29 | 26 | 22 | 19 | 18 | 18 |
| Feels °C (?) | 23 | 24 | 27 | 18 | 19 | 19 | 20 | 20 | 21 | 26 | 25 | 18 | 15 | 18 | 18 | 17 | 20 | 25 | 26 | 24 | 24 | 16 | 15 | 17 |
- 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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