- Forecast
- Maps
- Live
- Weather State
- Spot Information
Thirroul Surf Forecast
/ NSW – Illawarra (42 breaks) / New South Wales (297 breaks) /
Surf Forecasts:
Thirroul surfForecast / NSW – Illawarra / Australia
16 Day Weather and Surf, issued 3 am Monday 25 May 2026 AESTForecast update in hr min s Forecast update imminent
Thirroul surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thirroul sea temperature is
20.8° C
(Which is 1.2°C warmer than normal for this time of year)Best Forecast Surf Conditions for Thirroul this week:
The surf forecast for Thirroul over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 25) at 7AM. The primary swell is predicted to be 2.4m and 11s period with a secondary swell of 0.1m and 18s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Thirroul in the next 16 days are 3.5m 11s and forecast to arrive on Sunday (May 31) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (May 30) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 25th May) | 8ft (2.4m) 11s |
| Best Surf | 4PM (Tue 26th May) | 8ft (2.5m) 12s |
| Most Powerful | 7PM (Sun 31st May) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Thirroul over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Wed night. Warm (max 20°C on Mon morning, min 15°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 49mm), heaviest during Thu night. Warm (max 20°C on Thu morning, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
E 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | ESE 10 | ESE 9 | E 10 | E 10 | ESE 10 | ESE 10 | S 9 | S 11 | S 11 | SSE 11 | |
1468 | 1396 | 1302 | 1248 | 1835 | 1806 | 1607 | 1354 | 1132 | 1398 | 1253 | 889 | 690 | 904 | 873 | 932 | 748 | 1112 | 1450 | 2928 | 1848 | |
Wind (km/h) | |||||||||||||||||||||
glassy | cross-on | glassy | cross-on | glassy | cross-off | glassy | cross-on | cross-on | on | on | on | glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | |
High Tide | 4:23PM1.24m | 4:18AM1.16m | 5:07PM1.32m | 5:13AM1.10m | 5:46PM1.39m | 6:02AM1.06m | 6:22PM1.44m | 6:48AM1.04m | 6:57PM1.48m | 7:32AM1.03m | 7:32PM1.51m | 8:13AM1.02m | 8:09PM1.52m | ||||||||
Low Tide | 10:27PM0.46m | 10:34AM0.28m | 11:26PM0.41m | 11:12AM0.31m | 00:16AM0.34m | 11:48AM0.34m | 1:00AM0.29m | 12:24PM0.36m | 1:41AM0.24m | 1:00PM0.38m | 2:20AM0.21m | 1:37PM0.39m | 2:59AM0.20m | ||||||||
 |  |  |  | |  | | | |  | |  |  | |  | | |  | | | | |
 | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 4:57 | — | — | 4:55 | — | — | 4:55 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:53 | — |
— | — | 2 | 1 | 2 | — | — | 4 | 14 | 4 | 8 | 28 | 3 | — | — | — | 1 | 5 | — | — | — | |
Temp °C | 20 | 20 | 17 | 19 | 19 | 17 | 19 | 18 | 19 | 20 | 19 | 19 | 18 | 18 | 16 | 20 | 19 | 17 | 17 | 16 | 12 |
20 | 20 | 18 | 20 | 20 | 18 | 19 | 18 | 18 | 20 | 20 | 19 | 20 | 18 | 17 | 18 | 16 | 14 | 12 | 11 | 7 | |
Swell 1 Height (m) Direction Period (s) | E 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | SSE 8 | SSE 8 | ESE 10 | ESE 9 | E 10 | E 10 | ESE 10 | ESE 10 | S 9 | S 11 | S 11 | SSE 11 |
 kJ | 1468 | 1396 | 1302 | 1248 | 1347 | 1806 | 1607 | 1354 | 1132 | 23 | 19 | 889 | 690 | 904 | 873 | 932 | 748 | 593 | 1450 | 1642 | 1848 |
Swell 2 Height (m) Direction Period (s) | S 16 | SSE 15 | SSE 13 | S 12 | S 11 | S 11 | S 10 | S 9 | S 9 | S 14 | S 13 | SSE 7 | S 10 | S 18 | S 7 | S 15 | S 14 | E 9 | ESE 9 | ESE 11 | E 9 |
| kJ | 5 | 44 | 34 | 24 | 21 | 9 | 8 | 28 | 56 | 4 | 13 | 82 | 19 | 6 | 35 | 17 | 15 | 347 | 144 | 158 | 45 |
Swell 3 Height (m) Direction Period (s) | S 10 | — | — | S 18 | S 17 | S 17 | S 7 | S 16 | S 15 | — | S 17 | S 11 | — | S 18 | S 16 | — | S 14 | — | — | — | ESE 11 |
| kJ | 8 | — | — | 6 | 6 | 6 | 1 | 5 | 4 | — | 22 | 9 | — | 6 | 5 | — | 14 | — | — | — | 25 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 12 | — | — | — | — | E 12 | E 11 | — | — | — | — | — | SW 4 | S 9 | WSW 3 | S 11 | — |
| kJ | — | — | — | — | 1835 | — | — | — | — | 1398 | 1253 | — | — | — | — | — | 14 | 1112 | 3 | 2928 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 6 | 0 | 5 | 51 | 0 | 5 | 5 | 5 | 367 | 94 | 0 | 0 | 0 | 5 | 5 | 5 | 72 | 5 | 247 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
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 Thirroul 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 Thirroul Surf forecast
The above surf forecast table for Thirroul provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Thirroul can be found by selecting the local surf guide option on the grey menu. Our Thirroul 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 (Thirroul) 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 Thirroul 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.
Are you planning a holiday in Illawarra? If you are looking for accommodation near Thirroul, camping, hotels and holiday cottages in Illawarra, consider staying in Wollongong which is 12 km (7 miles) away. Other places in and around Illawarra where you can find information about places to rent, and car hire include Port Kembla which is 19 km (12 miles) away, Engadine, Cronulla and Caringbah.
Nearest