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Mona Vale-The Basin Surf Forecast
/ NSW – Sydney North Coast (39 breaks) / New South Wales (297 breaks) /
Surf Forecasts:
Mona Vale-The Basin surfForecast / NSW – Sydney North Coast / Australia
48hr Weather and Surf, issued 3 am Monday 18 May 2026 AESTForecast update in hr min s Forecast update imminent
Mona Vale-The Basin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mona Vale-The Basin sea temperature is
20.4° C
(Which is normal for this time of year)How big are the waves at Mona Vale-The Basin today?
The current surf forecast for Mona Vale-The Basin at 11AM is: 2.2m 9s primary swell from a East-northeast direction (forecast issued at 03:00am May 18). An open ocean swell of 0.1m 15s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 3.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 7.5ft (2.3m) | 9s |
| Afternoon (18 May) | 7ft (2.1m) | 9s |
| Evening (18 May) | 7ft (2.2m) | 9s |
Table - waves today at Mona Vale-The Basin. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Tue night. Very mild (max 19°C on Mon morning, min 14°C on Wed night). Winds increasing (calm on Mon morning, fresh winds from the S by Wed morning). | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | ENE 10 | |
794 | 808 | 917 | 847 | 761 | 682 | 732 | 657 | 534 | 617 | 631 | 739 | 963 | 1086 | 1020 | 889 | 907 | 712 | 641 | 544 | 492 | 492 | 477 | 410 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | glassy | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | |
High Tide | 9:17AM1.18m | 9:19PM1.80m | 10:14AM1.12m | 10:12PM1.76m | 11:14AM1.07m | |||||||||||||||||||
Low Tide | 3:17AM-0.04m | 2:48PM0.24m | 4:13AM-0.03m | 3:38PM0.30m | 5:10AM0.01m | 4:33PM0.37m | ||||||||||||||||||
 |  |  | |  | | | | | | | |  | |  |  | | |  | | | |  | | |
 | — | 6:39 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:59 | — | — |
— | 1 | 1 | 1 | — | — | 1 | 1 | 2 | 2 | — | 1 | — | — | — | 2 | 3 | — | 1 | 1 | — | — | — | — | |
Temp °C | 18 | 17 | 17 | 18 | 19 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 18 | 17 | 17 | 16 | 15 | 16 | 15 | 17 | 17 | 17 | 17 | 16 |
18 | 18 | 18 | 19 | 20 | 19 | 17 | 17 | 17 | 17 | 17 | 16 | 17 | 15 | 14 | 14 | 11 | 12 | 12 | 12 | 10 | 10 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | ENE 10 |
 kJ | 794 | 808 | 917 | 847 | 761 | 682 | 732 | 657 | 534 | 617 | 631 | 739 | 963 | 1086 | 1020 | 889 | 907 | 712 | 641 | 544 | 492 | 492 | 477 | 410 |
Swell 2 Height (m) Direction Period (s) | — | — | — | S 15 | — | — | S 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 5 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 3 | SSW 4 | S 7 | S 8 | S 8 | S 8 | S 8 | S 9 | S 9 | S 9 | S 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 34 | 360 | 816 | 866 | 778 | 1010 | 1138 | 1146 | 1064 | 1204 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 127 | 165 | 127 | 91 | 2 |
Best forecast wave conditions in Sydney North Coast | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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