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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 pm 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
20.3° 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 10PM is: 3.0m 8s primary swell from a East-northeast direction and 2.2m 8s secondary swell from a East-northeast direction (forecast issued at 03:00pm May 18). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 8ft (2.4m) | 9s |
| Evening (18 May) | 7ft (2.2m) | 8s |
Table - waves today at Mona Vale-The Basin. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Mon night. Very mild (max 18°C on Mon afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 9 | ENE 9 | ENE 9 | ENE 8 | 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 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | E 10 | |
761 | 815 | 785 | 1043 | 708 | 990 | 984 | 1066 | 1306 | 1179 | 1109 | 907 | 826 | 749 | 641 | 573 | 482 | 424 | 410 | 356 | 300 | 300 | 290 | 290 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-off | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-off | cross | cross | cross | cross | |
High Tide | 9:19PM1.80m | 10:14AM1.12m | 10:12PM1.76m | 11:14AM1.07m | 11:07PM1.68m | |||||||||||||||||||
Low Tide | 2:48PM0.24m | 4:13AM-0.03m | 3:38PM0.30m | 5:10AM0.01m | 4:33PM0.37m | 6:10AM0.06m | ||||||||||||||||||
 |  |  | | | | | | | |  | |  | |  | |  | |  | | | |  | | |
 | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:43 | — | — |
 | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:59 | — | — | — | — | — | 4:59 |
— | 2 | 2 | 5 | 2 | 2 | 1 | 1 | 3 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — | |
Temp °C | 19 | 18 | 18 | 17 | 17 | 16 | 17 | 16 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 16 | 17 | 16 | 16 | 14 | 13 | 14 | 15 | 15 |
20 | 20 | 18 | 19 | 18 | 16 | 18 | 16 | 17 | 14 | 14 | 14 | 13 | 11 | 11 | 12 | 12 | 12 | 12 | 10 | 9 | 9 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | S 15 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | S 9 | S 9 | S 9 | S 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | E 10 |
 kJ | 761 | 682 | 4 | 715 | 708 | 990 | 984 | 1066 | 1306 | 1179 | 1109 | 907 | 676 | 810 | 665 | 1026 | 482 | 424 | 410 | 356 | 300 | 300 | 290 | 290 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 8 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 421 | 826 | 749 | 641 | 573 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 9 | ENE 9 | ENE 8 | — | — | SSW 3 | SSW 4 | SSW 5 | SSW 5 | S 6 | S 8 | S 9 | S 9 | S 9 | S 9 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 |
| kJ | — | 815 | 785 | 1043 | — | — | 5 | 10 | 14 | 29 | 141 | 636 | 1080 | 1039 | 878 | 1358 | 1203 | 1039 | 880 | 880 | 1044 | 1164 | 1197 | 1009 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 2 | 2 | 0 | 3 | 2 | 2 | 2 | 2 | 2 | 0 | 2 | 2 | 85 | 91 |
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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