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Surf Forecasts:

Mona Vale-The Basin surfForecast / NSW – Sydney North Coast / Australia

information circle12 Day Weather and Surf, issued 4 am Tuesday 25 Nov 2025 AEDT
Forecast 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
20.7° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Mona Vale-The Basin this week:

The surf forecast for Mona Vale-The Basin over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 25) at 11AM. The primary swell is predicted to be 0.7m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mona Vale-The Basin in the next 12 days are 2.3m 7s and forecast to arrive on Monday (Dec 01) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Friday (Nov 28) at 8PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Tue 25th Nov)2.5ft (0.7m) 11s
Best Surf 2AM (Sat 29th Nov)6ft (1.9m) 7s
Most Powerful 2AM (Mon 1st Dec)7.5ft (2.3m) 7s

Table - best surf conditions forecast for Mona Vale-The Basin over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 33°C on Wed afternoon, min 18°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Sat afternoon, min 18°C on Sat night). Mainly fresh winds.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
2
1
1
2
1
0
1
0
3
0
0
0
0
0
3
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
ENE
0.7
E
0.7
E
0.8
E
0.8
ENE
0.8
E
1
ENE
0.8
E
0.7
E
0.7
E
1.6
ENE
1.9
NE
1.6
SSW
0.7
E
0.6
E
0.6
E
1.5
ENE
2.3
NE
1.2
NE
0.9
NE
1.1
S
Period(s) (?)1111101011101010101157611111157875
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1211101041331561412221279611412730518411682791055581697766
Wind
(km/h)
15
NE
25
NNE
15
NW
20
NW
20
NW
5
SE
10
WSW
5
SW
15
S
10
NNE
25
NE
10
N
25
SSW
35
SSE
5
SE
15
ENE
35
NE
10
NNW
5
NW
10
SW
15
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offoffoffoncross-
off		glasscross-
on		cross-
off		crosscross-
off		cross-
on		cross-
on		oncrosscrosscross-
off		glasscrosscross
High Tide
/ height (m)
11:52AM
1.43
12:58AM
0.95
12:38PM
1.39
1:57AM
0.98
1:30PM
1.34
2:59AM
1.04
2:28PM
1.29
3:57AM
1.14
3:32PM
1.26
4:50AM
1.27
4:39PM
1.23
5:40AM
1.42
5:44PM
1.22
Low Tide
/ height (m)
6:54PM
0.28
6:05AM
0.55
7:43PM
0.28
7:06AM
0.58
8:33PM
0.26
8:18AM
0.60
9:23PM
0.23
9:36AM
0.57
10:13PM
0.20
10:49AM
0.48
11:03PM
0.18
11:55AM
0.36
11:52PM
0.16
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Sunrise5:39--5:37--5:37--5:37--5:37--5:37--5:37--
Sunset-7:44--7:45--7:45--7:45--7:46--7:47--7:49-
clear
cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
clear
part cloud
clear
clear
clear
clear
part cloud
clear
Rain (mm)
---------------------
Temp. °C252524313329293122232421212719222320293124
Feels °C (?)242424293127272718212020202416201916282923
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Mona Vale-The Basin at:
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Information about the Mona Vale-The Basin Surf forecast

The above surf forecast table for Mona Vale-The Basin provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mona Vale-The Basin can be found by selecting the local surf guide option on the grey menu. Our Mona Vale-The Basin 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 (Mona Vale-The Basin) 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 Mona Vale-The Basin 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.

Mona Vale-The Basin is 8 km (5 miles) from Dee Why. If you plan a holiday in Sydney North Coast, look for hotels and other accommodation in Dee Why. Dee Why has rooms for a wide range of budgets as well as car hire and transport links.

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