Surf Forecasts:
Thommos surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 4AM (local time) - 4ft (1.2m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 10AM (local time) - 5ft (1.5m), 7s period, NE swell with 235 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 10PM (local time) - 4.5ft (1.3m), 6s period with NE swell.
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 (Aug 19) at 10PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.7m and 9s. Another secondary swell of 0.1m and 11s is also forecast. 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 1.5m 7s and forecast to arrive on Tuesday (Aug 25) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Wednesday (Aug 26) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 19th Aug) | 4.5ft (1.3m) 6s |
| Best Surf | 4AM (Thu 20th Aug) | 4ft (1.2m) 6s |
| Most Powerful | 10AM (Tue 25th Aug) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Thommos over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 22°C on Thu morning, min 12°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon night. Warm (max 24°C on Mon morning, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 6 | ESE 10 | NE 6 | NE 6 | ENE 6 | ENE 6 | ENE 7 | NE 6 | NE 6 | NE 6 | NE 6 | E 4 | NE 4 | ENE 9 | NE 5 | ENE 5 | ENE 4 | NE 6 | NE 7 | NE 8 | NE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 82 | 117 | 79 | 38 | 55 | 97 | 76 | 40 | 18 | 9 | 9 | 15 | 10 | 68 | 38 | 26 | 31 | 200 | 235 | 181 | 86 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross | off | off | off | off | cross-off | on | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross | off | cross | cross-off |
High Tide | 12:56PM1.29m | 1:14AM0.93m | 1:51PM1.26m | 2:26AM0.86m | 2:55PM1.25m | 3:47AM0.84m | 4:00PM1.27m | 4:57AM0.87m | 4:57PM1.32m | 5:49AM0.92m | 5:45PM1.38m | 6:31AM0.99m | 6:26PM1.45m | ||||||||
Low Tide | 7:35PM0.47m | 6:58AM0.47m | 8:49PM0.50m | 7:53AM0.53m | 10:06PM0.48m | 9:01AM0.55m | 11:09PM0.43m | 10:09AM0.54m | 11:58PM0.37m | 11:07AM0.49m | 00:37AM0.30m | 11:56AM0.43m | 1:12AM0.23m | ||||||||
 |  |  | |  |  | |  |  | | | | | | | | |  |  | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — |
 | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — |
mm | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | 4 | 10 | 5 | 1 |
Temp °C | 17 | 17 | 14 | 22 | 20 | 16 | 20 | 16 | 15 | 18 | 16 | 15 | 18 | 17 | 13 | 24 | 23 | 17 | 16 | 15 | 13 |
Feels °C | 15 | 14 | 13 | 19 | 18 | 14 | 18 | 14 | 13 | 15 | 14 | 15 | 14 | 13 | 11 | 21 | 20 | 16 | 16 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | E 6 | ESE 10 | SE 9 | NE 6 | ESE 6 | ENE 6 | ENE 7 | NE 6 | NE 6 | NE 6 | S 4 | ESE 4 | S 8 | S 8 | S 10 | ENE 5 | S 10 | NE 6 | NE 7 | NE 8 | NE 8 |
| kJ | 64 | 117 | 64 | 38 | 16 | 97 | 76 | 40 | 18 | 9 | 5 | 8 | 36 | 47 | 51 | 26 | 45 | 109 | 235 | 181 | 86 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | S 8 | E 9 | ESE 6 | E 10 | S 12 | S 11 | SE 7 | S 10 | SSW 4 | NE 6 | S 9 | E 4 | S 14 | ENE 9 | S 9 | S 16 | S 9 | S 9 | S 8 | S 9 |
| kJ | 82 | 12 | 2 | 27 | 2 | 3 | 2 | 2 | 2 | 4 | 9 | 14 | 4 | 37 | 8 | 39 | 19 | 41 | 24 | 12 | 15 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 15 | — | E 11 | — | — | — | S 10 | S 5 | S 9 | S 8 | NE 6 | NE 6 | S 20 | E 14 | NE 8 | E 13 | ENE 9 | S 15 | S 14 | S 15 |
| kJ | 19 | 4 | — | 2 | — | — | — | 2 | 1 | 6 | 12 | 5 | 6 | 8 | 4 | 18 | 3 | 8 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | ENE 5 | NE 6 | — | ENE 6 | — | WNW 3 | NNW 2 | W 3 | SW 4 | SSW 4 | E 4 | NE 4 | ENE 9 | NE 5 | NW 3 | ENE 4 | NE 6 | NW 4 | — | WSW 4 |
| kJ | — | 55 | 79 | — | 55 | — | 2 | 1 | 2 | 9 | 5 | 15 | 10 | 68 | 38 | 2 | 31 | 200 | 4 | — | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 444 | 0 | 0 | 2 | 0 | 0 | 1 | 287 | 335 | 407 | 1 | 2 | 255 | 0 | 0 | 0 | 2 | 0 | 1 | 0 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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