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Thommos Surf Forecast
/ NSW – Illawarra (42 breaks) / New South Wales (297 breaks) /
Surf Forecasts:
Thommos surfForecast / NSW – Illawarra / Australia
16 Day Weather and Surf, issued 9 pm Thursday 21 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)Best Forecast Surf Conditions for Thommos this week:
The surf forecast for Thommos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 24) at 10AM. The primary swell is predicted to be 2.5m and 12s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Thommos in the next 16 days are 3.0m 12s and forecast to arrive on Saturday (May 23) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 7s period and expected on Friday (May 22) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 24th May) | 8ft (2.5m) 12s |
| Best Surf | 10AM (Sun 24th May) | 8ft (2.5m) 12s |
| Most Powerful | 10PM (Sat 23rd May) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Thommos over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Sat afternoon. Very mild (max 19°C on Sun morning, min 14°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 20°C on Mon morning, min 14°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
E 10 | E 10 | ESE 10 | ESE 10 | ESE 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 11 | E 12 | E 12 | E 11 | E 11 | E 11 | |
200 | 177 | 529 | 1080 | 1512 | 2184 | 2338 | 2024 | 1846 | 1814 | 1706 | 1348 | 1148 | 949 | 872 | 811 | 776 | 664 | 544 | 474 | 394 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross | cross | cross-on | cross-on | cross | on | glassy | on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | off | cross-off | cross-on | cross | cross | cross | |
High Tide | 00:08AM1.55m | 1:27PM1.05m | 1:11AM1.44m | 2:33PM1.09m | 2:15AM1.33m | 3:32PM1.16m | 3:18AM1.24m | 4:23PM1.24m | 4:18AM1.16m | 5:07PM1.32m | 5:13AM1.10m | 5:46PM1.39m | 6:02AM1.06m | 6:22PM1.44m | |||||||
Low Tide | 7:11AM0.11m | 6:47PM0.49m | 8:10AM0.17m | 8:03PM0.51m | 9:03AM0.21m | 9:18PM0.50m | 9:51AM0.25m | 10:27PM0.46m | 10:34AM0.28m | 11:26PM0.41m | 11:12AM0.31m | 00:16AM0.34m | 11:48AM0.34m | ||||||||
 |  |  |  | | | | |  | |  | |  | |  | | | | | | | |
 | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — |
 | — | — | 4:58 | — | — | 4:58 | — | — | 4:57 | — | — | 4:57 | — | — | 4:55 | — | — | 4:55 | — | — | 4:54 |
3 | — | 1 | 2 | — | 5 | 1 | — | — | 1 | — | — | — | — | 2 | — | — | 1 | 2 | — | — | |
Temp °C | 16 | 16 | 16 | 16 | 18 | 17 | 18 | 19 | 18 | 17 | 20 | 19 | 16 | 20 | 18 | 16 | 20 | 18 | 15 | 15 | 16 |
13 | 13 | 13 | 13 | 15 | 16 | 17 | 19 | 17 | 18 | 20 | 19 | 16 | 19 | 18 | 15 | 17 | 16 | 11 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | ESE 10 | — | ESE 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 11 | E 12 | E 12 | E 11 | E 11 | S 9 |
 kJ | 200 | 177 | 529 | — | 1512 | 2184 | 2338 | 2024 | 1846 | 1814 | 1706 | 1348 | 1148 | 949 | 872 | 811 | 776 | 664 | 544 | 474 | 257 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 14 | S 12 | — | S 14 | S 20 | S 16 | S 14 | S 13 | S 11 | S 16 | S 15 | S 14 | S 12 | S 11 | S 11 | SSW 10 | S 6 | S 6 | S 8 | E 11 |
| kJ | 5 | 35 | 28 | — | 4 | 31 | 21 | 4 | 3 | 9 | 21 | 72 | 57 | 44 | 39 | 37 | 34 | 12 | 19 | 120 | 394 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 10 | S 10 | — | — | — | S 19 | S 16 | S 10 | S 13 | S 18 | S 18 |
| kJ | — | — | — | — | — | — | — | — | — | — | 8 | 7 | — | — | — | 7 | 47 | 8 | 3 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 7 | S 7 | ESE 10 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 3 | — | — |
| kJ | 469 | 369 | 209 | 1080 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 13 | 19 | 55 | 46 | 19 | 55 | 0 | 55 | 0 | 0 | 13 | 0 | 0 | 13 | 0 | 0 | 1 | 13 | 13 | 19 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Thommos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Thommos Surf forecast
The above surf forecast table for Thommos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Thommos can be found by selecting the local surf guide option on the grey menu. Our Thommos surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Thommos) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Thommos may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Thommos is 20 km (12 miles) from Wollongong. If you plan a holiday in Illawarra, look for hotels and other accommodation in Wollongong. Wollongong has rooms for a wide range of budgets as well as car hire and transport links.
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