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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 3 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)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 Wednesday (May 20) at 7PM. The primary swell is predicted to be 1.5m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Thommos in the next 16 days are 2.4m 12s and forecast to arrive on Sunday (May 24) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Tuesday (May 26) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Wed 20th May) | 5ft (1.5m) 10s |
| Best Surf | 1AM (Sun 24th May) | 8ft (2.4m) 11s |
| Most Powerful | 4PM (Sun 24th May) | 8ft (2.4m) 12s |
Table - best surf conditions forecast for Thommos over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Very mild (max 17°C on Thu morning, min 12°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Mon morning. Warm (max 20°C on Sun morning, min 12°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the SSW by Mon night). | ||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | E 10 | E 9 | ESE 10 | ESE 10 | E 10 | E 11 | E 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | |
607 | 450 | 370 | 312 | 296 | 200 | 207 | 383 | 794 | 951 | 1326 | 1442 | 1575 | 1610 | 1480 | 1207 | 980 | 690 | 467 | 344 | 287 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-on | cross-off | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross | glassy | cross-off | cross | glassy | cross-off | cross | cross | cross | cross-on | cross-on | |
High Tide | 11:17AM1.07m | 11:09PM1.65m | 12:21PM1.04m | 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 | ||||||||
Low Tide | 4:36PM0.37m | 6:11AM0.06m | 5:37PM0.44m | 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 | ||||||||
 |  |  | | |  |  |  | | | |  | | |  |  | | |  | | | |
 | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — |
 | — | 4:59 | — | — | 4:59 | — | — | 4:58 | — | — | 4:58 | — | — | 4:57 | — | — | 4:57 | — | — | 4:55 | — |
— | — | — | — | — | — | 2 | — | — | — | — | 2 | — | — | 1 | 9 | 1 | 3 | 7 | 5 | 1 | |
Temp °C | 16 | 16 | 13 | 17 | 17 | 14 | 16 | 17 | 16 | 18 | 17 | 16 | 20 | 20 | 16 | 16 | 15 | 13 | 14 | 15 | 15 |
13 | 13 | 10 | 12 | 13 | 10 | 14 | 14 | 13 | 16 | 15 | 16 | 19 | 19 | 15 | 12 | 10 | 7 | 6 | 7 | 7 | |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | ENE 10 | ENE 10 | E 10 | E 10 | E 9 | ESE 10 | ESE 10 | E 10 | E 11 | E 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 |
 kJ | 984 | 750 | 370 | 312 | 296 | 200 | 207 | 383 | 794 | 951 | 1326 | 1442 | 1575 | 1610 | 1480 | 1207 | 980 | 690 | 467 | 344 | 287 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | — | — | S 16 | S 16 | S 14 | S 8 | S 9 | S 7 | S 8 | S 17 | S 14 | S 13 | S 11 | S 16 | S 15 | — | — | — | S 19 |
| kJ | 607 | 450 | — | — | 5 | 5 | 16 | 42 | 41 | 17 | 10 | 5 | 4 | 3 | 10 | 21 | 72 | — | — | — | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 13 | — | S 14 | S 21 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 29 | — | 4 | 8 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | S 10 | S 9 | S 8 | SSE 8 | SSE 8 | SSE 7 | — | — | — | — | — | — | — | S 6 | S 7 | S 9 | S 9 | S 9 | S 10 |
| kJ | 1331 | 979 | 745 | 985 | 650 | 429 | 244 | 78 | — | — | — | — | — | — | — | 185 | 524 | 1904 | 1526 | 1920 | 1374 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 13 | 19 | 55 | 13 | 19 | 13 | 13 | 13 | 1 | 0 | 0 | 4 | 0 | 0 | 55 | 94 | 60 | 255 | 255 |
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)
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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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