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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 9 am Wednesday 20 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
19.8° C
(Which is normal for this time of year)How big are the waves at Thommos today?
The current surf forecast for Thommos at 2PM is: 1.6m 10s primary swell from a East-northeast direction (forecast issued at 09:00am May 20). An open ocean swell of 2.2m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5.5ft (1.7m) | 10s |
| Afternoon (20 May) | 5ft (1.6m) | 10s |
| Evening (20 May) | 5ft (1.5m) | 10s |
Table - waves today at Thommos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri morning. Very mild (max 17°C on Thu morning, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 1 AM | 4 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | E 10 | E 10 | E 10 | ENE 10 | ENE 10 | E 9 | E 9 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
676 | 607 | 607 | 450 | 441 | 450 | 370 | 312 | 318 | 312 | 306 | 250 | 250 | 245 | 200 | 160 | 150 | 139 | 139 | 177 | 574 | 690 | 746 | 717 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 11:17AM1.07m | 11:09PM1.65m | 12:21PM1.04m | 00:08AM1.55m | 1:27PM1.05m | 1:11AM1.44m | ||||||||||||||||||
Low Tide | 5:12AM-0.00m | 4:36PM0.37m | 6:11AM0.06m | 5:37PM0.44m | 7:11AM0.11m | 6:47PM0.49m | ||||||||||||||||||
 |  | | |  | | | | | | | |  | | | | |  |  | | |  | | | |
 | 6:43 | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 |
 | — | — | — | 4:59 | — | — | — | — | — | — | — | 4:59 | — | — | — | — | — | — | — | 4:58 | — | — | — | 4:58 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
Temp °C | 12 | 15 | 16 | 16 | 14 | 13 | 13 | 13 | 12 | 16 | 17 | 17 | 16 | 14 | 13 | 14 | 14 | 15 | 16 | 16 | 15 | 16 | 15 | 15 |
9 | 12 | 12 | 12 | 11 | 9 | 9 | 9 | 8 | 11 | 12 | 13 | 12 | 11 | 9 | 10 | 10 | 12 | 13 | 13 | 12 | 14 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | ENE 10 | ENE 10 | S 9 | S 10 | S 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | E 10 | E 10 | E 10 | ENE 10 | ENE 10 | E 9 | ESE 7 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 904 | 984 | 607 | 450 | 695 | 761 | 745 | 312 | 318 | 312 | 306 | 250 | 250 | 245 | 200 | 160 | 150 | 139 | 77 | 177 | 574 | 690 | 746 | 717 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | — | — | ENE 10 | ENE 10 | ENE 10 | — | — | — | — | S 16 | — | S 16 | S 16 | S 15 | S 14 | S 14 | E 9 | S 8 | S 8 | S 7 | SSW 9 | SSW 9 |
| kJ | 676 | 607 | — | — | 441 | 450 | 370 | — | — | — | — | 5 | — | 5 | 5 | 4 | 16 | 15 | 139 | 29 | 29 | 28 | 27 | 27 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 14 | S 8 | S 13 | S 12 | S 11 | SE 12 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 35 | 43 | 28 | 25 | 22 | 6 | — |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 9 | S 9 | — | S 10 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SE 7 | — | — | — | — |
| kJ | 1301 | 1238 | 822 | 750 | 918 | — | 958 | 1137 | 1172 | 1033 | 829 | 634 | 509 | 449 | 365 | 331 | 294 | 264 | 86 | 147 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 29 | 0 | 0 | 13 | 13 | 13 | 19 | 19 | 19 | 18 | 13 | 13 | 13 | 13 | 19 | 18 | 13 | 13 | 12 | 19 | 13 |
Best forecast wave conditions in Illawarra | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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