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Surf Forecasts:

Backsides surfForecast / NSW – North Coast / Australia

information circle12 Day Weather and Surf, issued 3 am Thursday 18 Sep 2025 AEST
Forecast update in hr  min  s Forecast update imminent
Backsides surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backsides sea temperature is
21.2° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Backsides this week:

The surf forecast for Backsides over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 1AM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.7m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Backsides in the next 12 days are 3.0m 9s and forecast to arrive on Tuesday (Sep 23) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Saturday (Sep 20) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Fri 19th Sep)2ft (0.6m) 7s
Best Surf10PM (Tue 23rd Sep)10ft (3.0m) 9s
Most Powerful10PM (Tue 23rd Sep)10ft (3.0m) 9s

Table - best surf conditions forecast for Backsides over the next 12 days.

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

Short Range Forecast Light rain (total 4mm), mostly falling on Fri night. Warm (max 23°C on Sat morning, min 17°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Some drizzle, heaviest during Mon night. Warm (max 20°C on Mon morning, min 11°C on Tue night). Winds increasing (light winds from the WSW on Mon night, strong winds from the S by Tue afternoon).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
1
0
0
0
0
0
0
0
2
1
0
1
0
0
!
!
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
S
1
SSE
0.6
NE
0.8
SE
0.8
NE
0.5
SE
0.3
S
0.3
S
0.3
ENE
1
S
1.2
S
1
S
0.8
ENE
0.8
E
0.7
E
1.4
S
2.5
S
3
SSE
2.1
S
1.6
SSE
1.1
SSE
Period(s) (?)55767610976811878689998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)686041536218161410662102277564681177751270718349171
Wind
(km/h)
20
S
20
SE
5
SSE
5
NE
25
NE
25
NNW
15
NNW
20
W
20
SW
10
SSE
15
E
10
WNW
10
SSW
15
ESE
15
WSW
20
SW
40
S
25
SW
20
SSW
15
SE
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		glassglasscross-
on		cross-
off		cross-
off		offcross-
off		crossoncross-
off		cross-
off		cross-
on		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
on		off
High Tide
/ height (m)
6:09PM
1.55
6:41AM
1.14
6:52PM
1.55
7:19AM
1.23
7:30PM
1.53
7:54AM
1.32
8:04PM
1.48
8:28AM
1.38
8:36PM
1.41
9:01AM
1.42
9:06PM
1.34
9:34AM
1.44
9:36PM
1.25
Low Tide
/ height (m)
11:29AM
0.37
12:49AM
0.26
12:24PM
0.30
1:23AM
0.21
1:11PM
0.25
1:53AM
0.18
1:52PM
0.23
2:22AM
0.17
2:31PM
0.24
2:49AM
0.18
3:09PM
0.28
3:16AM
0.20
3:47PM
0.34
3:43AM
0.24
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise5:41--5:39--5:37--5:37--5:35--5:35--5:33--
Sunset-5:38--5:38--5:39--5:39--5:40--5:40--5:42-
part cloud
clear
part cloud
clear
part cloud
light rain
light rain
cloud
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
Rain (mm)
-----31-------1------
Temp. °C201918212119232320191918201918191716181817
Feels °C (?)1816182019162120171817171817181398141517
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for NSW - North Coast

  1. weather stationWind Update The wind is still cross-off at Backsides (light winds from the SSW at Ballina Airport Automatic Weather Station 5 km from Backsides). 1.0m 4s local chop from the S with a 0.2m 10s swell from the E. 2 swells combining to make bigger set waves.

    42 minutes ago Backsides
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Actual: 42 min ago

13 km/h
SSW
Cross-Off
Please reload the page to see if there are any updates.

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 Backsides 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.

View detailed surf forecast for Backsides at:
surf-forecast.com

Information about the Backsides Surf forecast

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

Backsides is 5 km (3 miles) from Ballina. If you plan a holiday in North Coast - New South Wales, look for hotels and other accommodation in Ballina. Ballina has rooms for a wide range of budgets as well as car hire and transport links.

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