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:
Thirroul surfForecast / NSW – Illawarra / Australia
48hr Weather and Surf, issued 10 pm Friday 19 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Thirroul surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thirroul sea temperature is
21.6° C
(Which is normal for this time of year)How big are the waves at Thirroul today?
The current surf forecast for Thirroul at 6AM is: 0.7m 7s primary swell from a East-northeast direction and 0.2m 8s secondary swell from a South direction (forecast issued at 10:00pm December 19). The wind direction is predicted to be offshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Dec) | 2.5ft (0.7m) | 7s |
| Afternoon (20 Dec) | 2.5ft (0.7m) | 7s |
| Evening (20 Dec) | 2.5ft (0.8m) | 7s |
Table - waves today at Thirroul. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | 5 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 84 | 59 | 59 | 44 | 43 | 43 | 32 | 49 | 40 | 51 | 37 | 40 | 66 | 72 | 72 | 72 | 57 | 57 | 84 | 158 | 226 | 242 | 261 | 188 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross | glass | cross | cross- off | glass | cross- off | cross- off | cross | glass | glass | on | cross- on | cross | cross | cross | cross- off | off | off | cross- off | cross- on |
High Tide / height (m) | 9:08PM 1.00 | 9:02AM 1.54 | 9:47PM 1.00 | 9:40AM 1.56 | 10:27PM 1.00 | 10:17AM 1.55 | ||||||||||||||||||
Low Tide / height (m) | 2:28AM 0.39 | 3:55PM 0.18 | 3:06AM 0.39 | 4:33PM 0.17 | 3:45AM 0.40 | |||||||||||||||||||
Fri 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - | - | - |
| Sunset | 8:06 | - | - | - | - | - | - | - | 8:06 | - | - | - | - | - | - | - | 8:07 | - | - | - | - | - | - | - |
 |  |  | | |  |  |  | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 24 | 23 | 23 | 24 | 22 | 29 | 32 | 27 | 24 | 23 | 22 | 25 | 30 | 29 | 26 | 22 | 22 | 23 | 24 | 27 | 30 | 29 | 26 |
| Feels °C (?) | 26 | 25 | 24 | 24 | 25 | 25 | 28 | 31 | 29 | 26 | 25 | 24 | 28 | 33 | 31 | 28 | 23 | 24 | 25 | 26 | 29 | 32 | 31 | 27 |
- 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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