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Thommos Surf Forecast
/ NSW – Illawarra (42 breaks) / New South Wales (297 breaks) /
Surf Forecasts:
Thommos surfForecast / NSW – Illawarra / Australia
48hr Weather and Surf, issued 3 am Sunday 17 May 2026 AESTForecast update in hr min s Forecast update imminent
Thommos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thommos sea temperature is
19.9° C
(Which is normal for this time of year)How big are the waves at Thommos today?
The current surf forecast for Thommos at 6AM is: 2.0m 8s primary swell from a East direction (forecast issued at 03:00am May 17). An open ocean swell of 0.1m 8s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 3.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 7ft (2.1m) | 9s |
| Afternoon (17 May) | 7ft (2.2m) | 9s |
| Evening (17 May) | 7ft (2.2m) | 9s |
Table - waves today at Thommos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 27mm), heaviest during Tue night. Warm (max 20°C on Sun morning, min 14°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the SW by Tue afternoon). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
E 8 | E 8 | E 8 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | |
460 | 559 | 637 | 678 | 694 | 724 | 740 | 757 | 758 | 740 | 724 | 677 | 677 | 589 | 522 | 471 | 490 | 493 | 466 | 492 | 533 | 703 | 1004 | 1275 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | off | glassy | cross-off | cross | cross-off | glassy | off | cross-off | cross-off | cross-off | glassy | glassy | glassy | cross | cross-off | glassy | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | |
High Tide | 8:24AM1.21m | 8:30PM1.77m | 9:20AM1.17m | 9:20PM1.77m | 10:17AM1.11m | |||||||||||||||||||
Low Tide | 2:24AM-0.01m | 2:01PM0.20m | 3:18AM-0.05m | 2:50PM0.25m | 4:14AM-0.04m | 3:41PM0.31m | ||||||||||||||||||
 |  |  |  |  | |  | | | | | | | | | | |  |  | | | | |  | |
 | — | 6:41 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 1 | — | 2 | 10 | |
Temp °C | 17 | 16 | 16 | 19 | 20 | 20 | 18 | 17 | 17 | 17 | 17 | 20 | 20 | 19 | 18 | 18 | 17 | 16 | 16 | 16 | 17 | 17 | 15 | 14 |
18 | 16 | 17 | 19 | 19 | 20 | 19 | 17 | 17 | 16 | 16 | 19 | 20 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 15 | 15 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | ENE 10 |
 kJ | 460 | 559 | 637 | 678 | 694 | 724 | 740 | 757 | 758 | 740 | 724 | 677 | 677 | 589 | 522 | 471 | 490 | 493 | 466 | 492 | 533 | 703 | 1004 | 1275 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 12 | S 8 | — | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 3 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSW 3 | SSW 3 | — | — | — | — | — | — | — | — | — | SSW 3 | SSW 4 | SSW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | — | — | — | — | — | — | — | 3 | 38 | 806 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 13 | 13 | 60 | 1 |
Best forecast wave conditions in Illawarra | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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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